HR824 HIGH RESOLUTION ACTIVE STUDIO MONITOR OWNERS MANUAL

OL PWR

HIGH RESOLUTION STUDIO MONITOR

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL
10. Power Cord Protection Power supply cords should be routed so that they are not likely to be walked upon or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit this Mackie product. 11. Object and Liquid Entry Care should be taken so that objects do not fall into, and liquids are not spilled into this Mackie product. 12. Damage Requiring Service This Mackie product should be serviced only by qualified service personnel when: A. The power-supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has spilled into this Mackie product; or C. This Mackie product has been exposed to rain; or D. This Mackie product does not appear to operate normally or exhibits a marked change in performance; or E. This Mackie product has been dropped, or its chassis damaged. 13. Servicing The user should not attempt to service this Mackie product beyond those means described in this operating manual. All other servicing should be referred to the Mackie Service Department. 14. To prevent electric shock, do not use this polarized plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure.
ATTENTION: POUR EVITER LES RISQUES DE CHOC ELECTRIQUE, NE PAS ENLEVER LE COUVERCLE. AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L'USAGER. CONFIER L'ENTRETIEN AU PERSONNEL QUALIFIE. AVIS: POUR EVITER LES RISQUES D'INCENDIE OU D'ELECTROCUTION, N'EXPOSEZ PAS CET ARTICLE A LA PLUIE OU A L'HUMIDITE
The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure, that may be of sufficient magnitude to constitute a risk of electric shock to persons. Le symbole clair avec point de flche l'intrieur d'un triangle quilatral est utilis pour alerter l'utilisateur de la prsence l'intrieur du coffret de "voltage dangereux" non isol d'ampleur suffisante pour constituer un risque d'lctrocution. The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. Le point d'exclamation l'intrieur d'un triangle quilatral est employ pour alerter les utilisateurs de la prsence d'instructions importantes pour le fonctionnement et l'entretien (service) dans le livret d'instruction accompagnant l'appareil.

SAFETY INSTRUCTIONS

1. Read Instructions All the safety and operation instructions should be read before this Mackie product is operated. 2. Retain Instructions The safety and operating instructions should be kept for future reference. 3. Heed Warnings All warnings on this Mackie product and in these operating instructions should be followed. 4. Follow Instructions All operating and other instructions should be followed. 5. Water and Moisture Do not place water, hot or chilled drinks on top of this Mackie Product as it may cause a shock hazard. This Mackie product should not be used near water; for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, near a swimming pool, swamp, or salivating St. Bernard dog, etc. 6. Cleaning Clean only with a dry cloth. 7. Ventilation This Mackie product should be situated so that its location or position does not interfere with its proper ventilation. For example, the Component should not be situated on a bed, sofa, rug, or similar surface that may block any ventilation openings, or placed in a built-in installation such as a bookcase or cabinet that may impede the flow of air through ventilation openings. 8. Heat This Mackie product should be situated away from heat sources such as radiators or other devices which produce heat. 9. Power Sources This Mackie product should be connected to a power supply only of the type described in these operation instructions or as marked on this Mackie product.

Pour prvenir les chocs lectriques ne pas utiliser cette fiche polarise avec un prolongateur, un prise de courant ou une autre sortie de courant, sauf si les lames peuvent tre insres fond sans laisser aucune pariie dcouvert.
15. Grounding or Polarization Precautions should be taken so that the grounding or polarization means of this Mackie product is not defeated. 16. Power Precaution Unplug this Mackie product during lightning storms or when unused for long periods of time. Note that this Mackie product is not completely disconnected from the AC mains service when the power switch is in the OFF position. 17. This apparatus does not exceed the Class A/Class B (whichever is applicable) limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications.
ATTENTION Le prsent appareil numrique nmet pas de bruits radiolectriques dpassant las limites applicables aux appareils numriques de class A/de class B (selon le cas) prescrites dans le rglement sur le brouillage radiolectrique dict par les ministere des communications du Canada.
WARNING To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture.
Please write the serial number for your studio monitor here (both studio monitors if you have two) for future reference (i.e., insurance claims, tech support, return authorization, etc.):

Monitor 1 Monitor 2

2 Purchased at:_____________________________ Date of Purchase:_____________

INTRODUCTION

Thank you for choosing Mackie Designs HR824 Studio Monitors. We realize that monitors are a critically important tool whether your application is studio recording, audio/video post production, hi-fi, or home theater. Knowing this, Greg Mackie had a simple mandate: Design a reference monitor with a degree of accuracy and versatility unmatched by any other in its size and price category or any size and price category for that matter. The mandate was simple, but accomplishing it was another story! In short, all the complex interconnected components in the system are designed to work in harmony with each other to produce the best possible sound.

The Transducers.

The monitors feature an 8.75-inch die-cast magnesium frame woofer and a 1-inch viscous edge-damped aluminum-alloy dome tweeter on the front, and a 6-inch x 12-inch elliptical flat piston passive radiator in the back. The high-frequency driver is mounted on a massive, acoustically non-resonant die-cast zinc exponential waveguide which results in wide, controlled dispersion of high-frequency sounds. The unique passive radiator design provides a smooth response down to 39Hz an astounding accomplishment for a cabinet of this size! And since the radiator is producing most of the sound at the lowest frequencies, there is very little distortion from the woofer because its cone movement is minimal at those frequencies.
Investments in Excellence.
To accomplish the task at hand, Greg and the New Product Development team realized that a commitment was required in terms of new resources and new equipment. So we recruited some of the best speaker and acoustic engineers in the industry to assist in the design of the HR824. And we invested in some advanced (and need we say expensive) measurement and analysis tools for the design team to use. The result? The HR824 Studio Monitors are extremely accurate and versatile, loaded with unique controls that allow you to fine-tune the sound to match your individual environment precisely. Youre gonna love these!

The Cabinet.

The cabinet is made of MDF wood. An internal H brace further increases the strength and rigidity (stiffness) of the box. An open-cell adiabatic foam material fills the inside of the box to absorb internal reflections and dampen standing waves.
What are they? The Advantages.
The HR824 Studio Monitors are high-resolution, two-way, bi-amplified, active monitors employing a 6th-order Butterworth system with a built-in rear-firing mass-loaded passive radiator. Whew! There are many benefits to integrating an active crossover, power amplifiers, and drivers into a single cabinet, and weve taken full advantage of these benefits in the design of the HR824. The crossover point is designed so that the high and low frequency drivers are fed only the frequencies they are best able to reproduce. The amplifiers are designed to provide maximum acoustic output from the speakers, yet minimize the danger of speaker damage due to overdriving. In addition, the amplifiers gain and frequency responses are individually hand-trimmed to compensate for typical manufacturing tolerances between the drivers and produce a smooth frequency response from 39Hz to 20kHz (1.5 dB). The connecting wire between the amplifier outputs and the drivers are kept to an absolute minimum, so the damping factor of the amplifier isnt compromised by the resistance of long speaker cables. The acoustic sum of the outputs from the two drivers are optimized electronically, as well as physically, so the amplitude response is unity and the phase difference is minimal.

The ACOUSTIC SPACE switch must be set correctly.
When you put your HR824s in a corner or up against walls, their bass characteristics change. Adjust the ACOUSTIC SPACE switch setting accordingly to avoid muddy or exaggerated low frequency response.

Feel free to experiment.

In many respects, every control room is unique in terms of its acoustics. Even after youve read about how to set the HR824s rear panel switches, try other settings to see if your particular room environment requires different adjustments. And, even after youve placed your monitors where you think theyll sound best, try moving them around. You might be pleasantly surprised.
Finally, keep an open mind about improving your rooms acoustics and bass-handling ability.
Nobody likes to buy a new set of monitor speakers and then be told that they should spend extra bucks on bass traps or a remodeling job. But the simple fact is, standard rooms, i.e. rectangular rooms in conventional business or residential structures, are rarely if ever conducive to optimal low bass reproduction without some modifications. Luckily, there are plenty of options short of building a new control room, many of which are covered in this manual.

Placement

PWR OFF ON
The HR824s were designed to be placed in a vertical position. If you find it necessary to place the speakers in a horizontal position (on their sides), place them so that the woofers are toward the inside; that is, so the woofers are closest to each other. This provides the best low-frequency summing and overall imaging.
Figure 2. Horizontal Placement
A Few Words About THX pm3 Certification
Nearly two decades ago, George Lucas turned a passion for great sound into the worlds most accepted and trusted solution for achieving it. The standard was named THX (for Tomlinson Holman, who developed the THX Sound System when he was the research and technical director at LucasArts in the early 80s), and today, with hundreds of thousands of home theater customers and more than 3000 THX Certified movie theaters enjoying its benefits, the THX name has become nothing short of legendary. Simply put: when it comes to premium sound, no other name so closely defines quality for millions of moviegoers and home theater enthusiasts alike. Today, a new landscape is emerging. A landscape comprised of hundreds of small, professional multi-channel facilities, whose need for differentiation, expert technical and marketing support, and a true, multi-channel standard is becoming a competitive fact of life. Again, THX has a singular solution and this time its called THX pm3 Certification. All facilities involved with mixing and/or monitoring of multi-channel material should have the option to use pm3. THX pm3 Certification is ideal for DVD mastering, sweetening, and mixing; and is also perfect for facilities doing work in broadcast, music, or multi-media applications. HR824 THX pm3 Certification When we submitted the HR824s for THX pm3 Certification, they passed on the first try with no modifications! Anyone seeking THX Certification for their studio, or striving to maintain THX standards, can use the HR824s and rest assured that their facility is in full compliance. (Celebrating with a jumbo Bucket o Popcorn with extra butter is highly recommended!)

CONTENTS

INTRODUCTION.. 3 QUICK START... 4 REAR PANEL DESCRIPTION.. 8 SIGNAL INPUTS. 8 INPUT SENSITIVITY. 8 ACOUSTIC SPACE.. 8 LOW FREQ.. 9 HIGH FREQ.. 9 POWER MODE. 10 MAINS INPUT. 11 PASSIVE RADIATOR.. 11 FRONT PANEL DESCRIPTION.. 12 POWER SWITCH.. 12 PWR LED.. 12 OL (Overload) LED. 12 PROTECTION CIRCUITS. 12 Overload Protect.. 12 Thermal Protect.. 13 INTEGRATED MAGNETIC SHIELDING. 13 INPUT SIGNAL WIRING.. 13 Service Info... 14 Troubleshooting.. 14 Repair... 15 Technical Information.. 16 Block Diagram.. 16 Specifications.. 16 Graphs.. 18 Colophon.. 18 HR824 Limited Warranty.. 19
Part No. 0004513 Rev. B 5/03 2000-2003 Mackie Designs Inc. All Rights Reserved.

REAR PANEL DESCRIPTION

This is where you connect your signal to the monitor, and make adjustments to the frequency response of the speakers to match the monitors location and your rooms environment.

SIGNAL INPUTS

The location of the signal input jacks makes the connectors exit down and not straight out the back of the enclosure. This flush-mount design allows you to place the monitor right up against the wall if desired. XLR female, TRS female, and RCA female connectors, parallel connected. Dont connect more than one source to the jacks. You can use the remaining jacks as Thru jacks for daisy-chaining the signal to another monitor or to another amplifier. If you do this, be aware that unbalancing the signal anywhere along the chain does so for all devices connected to the chain. This negates the benefits associated with balanced lines and inputs. Unbalanced TS (tip-sleeve) lines can be accommodated via the TRS jack. Make sure the cable terminates with a TS plug (like a guitar plug), or if its a TRS plug (such as a headphone plug), make sure the ring is tied to the sleeve and that the plug is fully inserted into the jack. When using a TS or TRS plug, make sure it is pushed all the way into the jack. Partially inserting the plug into the jack could result in a drop in signal level (by 6 dB). The XLR and TRS input connectors accept balanced or unbalanced signals. The connectors are wired as follows (per the AES/IEC standard): XLR TRS RCA Hot (+) Pin 2 Tip Tip Cold () Pin 3 Ring Shield (Ground) Pin 1 Shield Shield The HR824s can be used with a home receiver even if the receiver lacks a preamp output by using a speaker-level to line-level signal attenuator. (See page 13 for more information.)
The HR824 expects a line-level signal at its input connectors. The reference sensitivity is 7.5 dBu=100 dB SPL at one meter (39 inches) with the INPUT SENSITIVITY control set to its NORMAL position (in other words, wide open). The HR824 is designed to operate with a +4 dBu signal when the INPUT SENSITIVITY control is in the NORMAL position. Refer to the QUICK START section on page 4 for the level-setting procedure.

This is a three-way switch that adjusts the low-frequency response of the speakers to compensate for their placement in the room.
If you place the HR824 monitors against a wall (half space ), set the ACOUSTIC SPACE switch to the B position. This activates a shelving filter to reduce the lowfrequency output by 2 dB to compensate for the half-space placement. If you place the monitors into the corners of your room (quarter space ), the lowfrequency output approximately doubles from what it is in half space. Set the ACOUSTIC SPACE switch to the A position to reduce the low-frequency output by 4 dB to compensate for the quarter-space placement. If you use the HR824s free-standing, away from walls and corners (whole space ), set the ACOUSTIC SPACE switch to the C position (NORMAL).
somewhat. Low-frequency information requires the largest amount of an amplifiers output, so restricting the low-frequency content allows raising the mid-frequency level somewhat. If your client insists on mixing LOUD, this may be a workable strategy.
The LOW FREQ switch inserts a steep lowfrequency rolloff into the response curve. For many applications, the low-frequency output of the HR824 may impair your ability to make mix judgements. For most applications, use the 47Hz setting. If you want or need the extra low-frequency capability, by all means use the 37Hz (NORMAL) position. The LOW FREQ switch affects the lowfrequency content of your mix. Remember how things work in reverse, so removing the deep bass content on playback may actually increase it in the final mix. You can use the LOW FREQ switchs 80Hz position to simulate a smaller loudspeaker, especially one with limited low-frequency capability (like a certain popular 2-way nearfield monitor). You may need to do this if a small speaker is the eventual destination of your mix, or perhaps just to see how your mix sounds on a clock radio. Removing the low-frequency content also allows you to raise the overall output level

HIGH FREQ

The HIGH FREQ switch tailors the overall high-frequency response by 2 dB at 10kHz. Leave this switch in the 0 (NORMAL) position unless: You want to subtly brighten or darken the sound of the speakers. Perhaps you have hearing loss caused by too many nights in front of a double Marshall stack. You just like to mix on the bright side or dull side. If your mixes consistently sound dull or dark when you listen elsewhere, this usually indicates that your monitors are too bright, relative to your normal hearing. A bit less high-frequency energy usually fixes this, and you can force the mix in this direction by reducing the highfrequency output of the monitors by using the 2 dB position of the switch.

Passive Radiator

FRONT PANEL DESCRIPTION

Power Switch

Use this switch to turn on or off the HR824 from the front. It works with the POWER MODE switch on the rear panel in the following way: If the POWER MODE switch on the rear panel is set to STANDBY, the front panel switch has no effect. The PWR power LED remains off. If the POWER MODE switch is ON, the front panel power switch turns the HR824 on or returns it to STANDBY mode, as indicated by the PWR LED. If the POWER MODE switch is in the AUTO ON position, the front panel power switch turns the HR824 on, even when there is no signal present. If there is no signal after about two minutes, the auto-off function is activated and the amplifiers go into Standby mode, indicated when the red PWR LED goes off.

Overload Protect

The high and low frequency power amplifiers have clipping detectors that light the OL LED when either power amplifier output clips. If you see the OL LED blinking more than just occasionally, its an indication that you should reduce the signal level coming from your mixer or other signal source. If frequent clipping continues, the driver thermal overload protection activates a compressor that reduces the input level to the amplifiers. During this time the OL LED lights continuously. The compressor was designed to protect the speakers and its action is highly audible. The compressor was not designed for mixing! If a client insists on listening to the monitors at a very high volume, you may find that the OL LED lights frequently. Since the majority of the power requirement in any monitor are the low frequencies, selectively reducing the low end can provide a little more headroom and volume for the monitors. Change the LOW FREQ switch to 47Hz or 80Hz, if necessary, to reduce the bass response. This may allow the HR824s to play just enough louder to satisfy the client and to eliminate most of the amplifier clipping.

OL (Overload) LED

This LED blinks when the amplifiers begin to clip and lights steadily if the overload protechas been triggered. tion circuit Occasional blinking of the OL LED indicates that the loudest transients are reaching the maximum output capability of the amplifiers. This is okay. Frequent or continuous blinking of the OL LED indicates that you have exceeded the maximum output capability of the amplifiers and that the amplifiers are clipping. If you persist, the overload protection circuit takes over, reducing the input level. You should reduce the level from your signal source until the OL LED blinks occasionally or not at all.

PROTECTION CIRCUITS

There are a number of protection mechanisms designed into the HR824 to safeguard the loudspeakers from inadvertent damage. CAUTION: The protection circuits are designed to prevent damage to the loudspeakers under reasonable and sensible conditions. Should you choose to ignore the warning signs (i.e., frequent Overload LED indications, excessive distortion), you can still damage the speakers in the HR824 by overdriving them past the point of amplifier clipping. Such damage is beyond the scope of the Warranty.

Bad Sound

Is the input connector plugged completely into the jack? If using a 14 TS or TRS plug, make sure it is plugged all the way in. Is it loud and distorted? Reduce the signal level at the mixer. If possible, listen to the signal source with headphones plugged into the preamp stage. If it sounds bad there, its not the monitor. Too much bass or not enough bass? Move around the room and see if the bass response changes. Its possible your listening position coincides with a room mode where the low frequencies either become exaggerated or nulled. If so, try moving the monitors to a different position, or moving your listening position.

Troubleshooting

No Power
Our favorite question: Is it plugged in? Make sure the power cord is securely and plugged seated in the IEC socket all the way into the AC outlet. Make sure the AC outlet is live (check with a tester or lamp). Are the power switch on the front panel switch on the and the POWER MODE rear panel in the ON position? LED on the front panel Is the PWR illuminated? If not, make sure the AC outlet is live. If so, refer to No Sound below. If the PWR LED is not illuminated, and you are certain that the AC outlet is live, it will be necessary to have the HR824 serviced. There are no user-serviceable parts inside. Refer to Repair at the end of this section to find out how to proceed.

Noise/Hum

Check the signal cable between the mixer and the monitor. Make sure all connections are secure. These problems usually produce crackling noises or hum. If connecting an unbalanced output to the HR824 balanced input, make sure the shield is connected to the unbalanced ground and to pin 1 of the XLR (or the sleeve of the TRS jack). If a CATV cable is connected to the system, try disconnecting it. If the hum goes away, call your cable carrier to check for proper grounding of the cable.

No Sound

Is the PWR LED on the front panel illuminated? If not, refer to No Power above. control Is the INPUT SENSITIVITY turned up? Is the signal source turned up? Make sure the signal level from the mixing console (or whatever device immediately precedes the studio monitor) is high enough to produce sound.

Make sure the signal cable is not routed near AC cables, power transformers, or other EMI sources (including wall warts and line lumps!). These sources usually produce hum. Is there a light dimmer or other triac-based (SCR) device on the same AC circuit as the monitor? Dimmers cause buzzing noises. Use an AC line filter or plug the monitor into a different AC circuit. Excessive hiss is an indication of an incorrect gain setting somewhere before the speaker. If possible, listen to the signal source with headphones plugged into the console. If it sounds noisy there, its not the monitor.
I hear sound from the monitors after I switch the AC power off!
Use the front panel switch to turn the monitors on and off, or turn off the signal going to the monitors when the AC power is turned off. If you unplug the HR824 or turn off the power strip that its plugged into with a signal applied to the input, you may hear sound from the monitor for a short period of time as the muting circuit unmutes and the power supply finishes discharging. This is normal and not harmful to the monitor.
1. Review the preceding troubleshooting suggestions. Please. 2. Call Tech Support at 1-800-258-6883, 7 am to 5 pm PST, to explain the problem and request an RA (Return Authorization) number. Have your monitors serial number(s) ready. You must have an RA number before you can obtain service at the factory. 3. Set aside the power cord, owners manual, or anything else that youll ever want to see again. We are responsible for the return of the monitor only. 4. Pack the monitor in its original packing box. This is very important. When you call for the RA number, please let Tech Support know if you need new packaging. Mackie is not responsible for any damage that occurs due to non-factory packaging. 5. Include a legible note stating your name, shipping address (no P.O. boxes), daytime phone number, RA number, and a detailed description of the problem, including how we can duplicate it. 6. Write the RA number in BIG PRINT on top of the box. 7. Ship the monitor to us. We suggest insurance for all forms of cartage. Ship to this address: Mackie Designs SERVICE DEPARTMENT 16220 Wood-Red Rd. NE Woodinville, WA 98072 8. Well try to fix the monitor within five business days. Ask Tech Support for current turnaround times when you call for your RA number. We normally send everything back prepaid using three-day shipping. However, if you rush your monitor to us by next-day air, well treat it in kind by shipping it back the same way in which it was received. This paragraph does not necessarily apply to non-warranty service.

Repair

Service for the U.S. versions of our monitors is available only from our factory, located in sunny Woodinville, Washington. (Service for monitors living outside the United States can be obtained through local dealers or distributors.) If your monitor needs service, follow these instructions:

Acoustic Section:

Free-Field Frequency Response: 1.5 dB, 39Hz to 20kHz Lower cutoff frequency: Upper cutoff frequency: 3 dB @ 37Hz 3 dB @ 22kHz
Sound Pressure Level at 1 meter, 7.5 dBu into balanced input: 100 dB SPL @ 1m Maximum peak SPL per pair: 120 dB SPL @ 1m Maximum short term SPL on axis, half space 80Hz to 2.5kHz: 111 dB SPL @ 1m Residual noise (maximum gain, 600 source, 20Hz-20kHz bandwidth): < 8 dB SPL @ 1m

General:

Power Consumption: 135 watts with musical program, loud mix 18 watts quiescent (idle) 8 watts in Standby mode AC Dropout Voltage: 120V AC versions: 80V AC 240V AC versions:160V AC Weight: 32 lbs. 9 oz. (14.77 kg) Dimensions (HxWxD): 15.75" (400mm) x 10.00" (254mm) x 12.20" (310mm) Mackie Designs is always striving to improve our products by incorporating new and improved materials, components and manufacturing methods. Therefore, we reserve the right to change these specifications at any time without notice.

Amplifier Section

Low-frequency amplifier: Rated power output: 150 watts, 4 load Burst power output: 350 watts Distortion: THD: < 0.035% SMPTE IMD: < 0.035% DIM 100: < 0.035% Slew Rate: > 35V/s Signal-to-Noise Ratio: > 102 dB, referenced to 150 watts into 4 ohms High-frequency amplifier: Rated power output: 100 watts, 6 load Burst power output: 210 watts Distortion: THD: < 0.035% SMPTE IMD: < 0.035% DIM 100: < 0.035% Slew Rate: > 35V/s Signal-to-Noise Ratio: > 102 dB, referenced to 100 watts into 6 ohms
12.20" 309.9mm 10.50" 266.7mm
HR824 WEIGHT 32.6 lbs. (14.8 kg)

10.00" 254.0mm

15.75" 400.0mm

Graphs

COLOPHON
HR824 Acoustic Space Filter Response
+5 +4 +3 +2 +1 -0 -1 -2 -3 d B u -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -500 Hz 1k 2k 5k 10k
HR824 High Frequency EQ Filter Response
+5 +4 +3 +2 +1 -0 -1 -2 -3 d B u -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -500 Hz 1k 2k 5k 10k 20k
HR824 Low Frequency Filter Response
+5 +3 +1 -1 -3 -5 -7 -9 -11 -13 -15 -17 d B u -19 -21 -23 -25 -27 -29 -31 -33 -35 -37 -39 -41 -43 -40 Hz 200
The text is a compilation based on input from a number of sources, including distinguished design engineers Mats Jarlstrom and Cal Perkins, acoustic engineers David Bie and Terry Wetherbee, Mackies celebrated cerebral technical support staff, and several species of small furry animals gathered together in a cave grooving with a pict. Extensive input was provided from various and sundry interested parties including mega-SR and recording guru Rick Chinn, our colorfully convoluted communications connoisseur and Master Geek Ron Koliha, Linn Compton (proofreader extraordinaire), Sara Delahan (Art Department Diva), and Paul Larson (Technical Support Supreme). Finally, Dave Franzwa patiently patched the pieces into perpetual prose with passionate precision. Initially written in Microsoft Word 6.0.1, the text was imported into Adobe PageMaker 6.0 (which was upgraded to 6.5 during the production process). Illustrations were produced in Adobe Illustrator 6.0. Most of the work was done on a Power Macintosh 8100/100AV with Mac OS 7.6.1 installed and an external hamster-driven power-supply which consumed 6.7 pounds of hamster food during the production of this manual. This machine has a PowerPC 601 processor, 136MB of RAM, a 1GB internal hard drive, an internal Matshita CD-ROM drive, 2GB external hard drive, and an external Iomega Zip Drive for backup and transfer of files. This entire manual was written and produced while sitting in a comfy chair. The following are trademarks or registered trademarks of Mackie Designs Inc.: The Mackie logo, HR Series, and the Running Man. THX pm3 and Lucasfilm are trademarks of Lucasfilm Ltd. Used by permission. This manual also contains names and marks of other companies which belong to those respective companies, and are hereby acknowledged. HR824 design protected under the following patent: DES. 387,351 2000-2003 Mackie Designs Inc. All Rights Reserved.

HR824 LIMITED WARRANTY

Please keep your sales receipt in a safe place.
A. Mackie warrants all materials, workmanship and proper operation of this product for a period of three years from the original date of purchase. If any defects are found in the materials or workmanship or if the product fails to function properly during the applicable warranty period, Mackie, at its option, will repair or replace the product. This warranty applies only to equipment sold and delivered within the U.S. by Mackie or its authorized dealers. B. Failure to register online or return the product registration card will not void the 3-year warranty. C. Service and repairs of Mackie products are to be performed only at the factory (see D below). Unauthorized service, repairs, or modification will void this warranty. D. To obtain factory service: 1. Call Mackie at 800/258-6883, 8AM to 5PM Monday through Friday (Pacific Time) to get a Return Authorization (RA). Products returned without an RA number will be refused. 2. Pack the product in its original shipping carton. If you do not have the carton, just ask for one when you get your RA number, and well send a shipping carton out promptly. More information on packing can be found in the Service section of this manual. Do not use packing peanuts, shredded newspapers, or other material with small particles, old underwear, or socks. Please seal the Mackie product in a plastic bag. 3. Also include a note explaining exactly how to duplicate the problem, a copy of the sales receipt with price and date showing, and your return street address (no P.O. boxes or route numbers, please!). If we cannot duplicate the problem at the Mackie Factory or establish the starting date of your Limited Warranty, we may, at our option, charge for service time. 4. Ship the product in its original shipping carton, freight prepaid to: Mackie Designs Service Department 16220 Wood-Red Rd. NE Woodinville, WA 98072 USA IMPORTANT: Make sure that the RA number is plainly written on the shipping carton. F. Mackie reserves the right to inspect any products that may be the subject of any warranty claims before repair or replacement is carried out. Mackie and Mackie Authorized Service Centers may, at their option, require proof of the original date of purchase in the form of a dated copy of the original dealers invoice or sales receipt. Final determination of warranty coverage lies solely with Mackie Designs Inc. or its Authorized Service Centers. G. Any Mackie product deemed eligible for repair or replacement under the terms of this warranty will be repaired or replaced within thirty days of receipt by Mackie. Mackie may use refurbished parts for repair or replacement of any product. Products returned to Mackie that do not meet the terms of this Warranty will be repaired and returned C.O.D. with billing for labor, materials, return freight, and insurance. Products repaired under warranty at Mackies factory will be returned freight prepaid by Mackie to any location within the boundaries of the USA. H. Mackie warrants all repairs performed for 90 days or for the remainder of the original warranty period. This warranty does not extend to damage resulting from improper installation, misuse, neglect or abuse, or to exterior appearance. This warranty is recognized only if the inspection seals and serial number on the unit have not been defaced or removed. I. This warranty is extended to the original purchaser and to anyone who may subsequently purchase this product within the applicable warranty period. J. This is your sole warranty. Mackie does not authorize any third party, including any dealer or sales representative, to assume any liability on behalf of Mackie Designs or to make any warranty for Mackie Designs. K. THE WARRANTY GIVEN ON THIS PAGE IS THE SOLE WARRANTY GIVEN BY MACKIE AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS AND IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE WARRANTY GIVEN ON THIS PAGE SHALL BE STRICTLY LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL PURCHASE FROM AN AUTHORIZED MACKIE DEALER. UPON EXPIRATION OF THE APPLICABLE WARRANTY PERIOD, MACKIE SHALL HAVE NO FURTHER WARRANTY OBLIGATION OF ANY KIND. MACKIE SHALL NOT BE LIABLE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES THAT MAY RESULT FROM ANY DEFECT IN THE MACKIE PRODUCT OR ANY WARRANTY CLAIM. Some states do not allow exclusion or limitation of incidental, special, or consequential damages or a limitation on how long warranties last, so some of the above limitations and exclusions may not apply to you. This warranty provides specific legal rights and you may have other rights which vary from state to state.

Mackie Designs Inc.

16220 Wood-Red Road NE Woodinville, WA 98071 USA US and Canada: 800.898.3211 Europe, Asia, Central and South America: 425.487.4333 Middle East and Africa: 31.20.654.4000 Fax: 425.487.4337 www.mackie.com E-mail: sales@mackie.com

HR Series

The HR824 studio monitors are high-resolution, twoway, bi-amplified, active monitors employing a 6th-order Butterworth system with a built-in rear-firing mass-loaded passive radiator. They feature a 1-inch aluminum-alloy high-frequency transducer, a high-precision 8.75-inch diecast magnesium frame low-frequency transducer, and a 6-inch x 12-inch elliptical flat piston passive radiator in the back. The system is composed of a single, compact cabinet with built-in control and amplifier electronics.
Active 2-Way Studio Monitor
The high-frequency driver is mounted on a massive,
acoustically non-resonant die-cast zinc exponential waveguide, which results in wide, controlled dispersion for high-frequency sounds. The unique passive radiator design provides smooth response down to 39 Hz.

Features

Flat frequency response (1.5 dB, 39 Hz to 20 kHz) 1" ferro-fluid cooled aluminum alloy dome tweeter 8.75" mineral-filled polypropylene cone woofer Proprietary, acoustically non-resonant high-frequency
exponential waveguide 6" x 12" elliptical passive radiator for enhanced bass performance 100 watt HF and 150 watt LF FR Series power amplifiers Servo-loop architecture for improved low-frequency overload detection Independent high and low frequency overload detection High-strength cabinet constructed with 3/4" MDF composite and 1" front board with radiused edges Internal H-brace for extra rigidity High-density adiabatic foam absorbs internal reflections Full magnetic shielding Balanced XLR and 1/4" TRS, and unbalanced RCA input connectors, downward facing Modified Linkwitz-Riley 24 dB/octave crossover Recessed adjustable sensitivity control Acoustic Space switch for selecting whole space, half space, or quarter space placement Low-Frequency switch for bandwidth limiting the low-frequency response High-Frequency switch boosts or cuts high frequencies Power Mode switch includes AUTO mode Front panel power switch with indicating LED Front panel overload indicating LED
The FR Series amplifiers found in the HR824 cabinet
are an example of application-specific amplifier design that can be exercised when designing active speaker systems. The low-frequency amplifier is rated at 150 watts rms continuous output, and the high-frequency amplifier is rated at 100 watts rms continuous.
The input panel on the back accepts a line-level input
with balanced 1/4" TRS, XLR, and unbalanced RCA connectors. The connectors face downward so the monitor can be placed flush against a wall. There is an input sensitivity control to trim the gain from input to output and adjust for various input levels. An acoustic space switch adjusts the bass response to compensate for corner (quarter space) or wall (half space) placement. A low-frequency switch selects a high-pass cutoff frequency of 37 Hz, 47 Hz, and 80 Hz, and a high-frequency switch provides either 2 dB of boost or cut above 10 kHz. The power mode switch can be used to turn the monitor on and off, a function that is duplicated with the front panel switch, or to put the monitor into auto mode, where the amplifiers revert to standby when no signal is present for several minutes. The instant a signal appears at the input, the amplifiers seamlessly come back to life and produce sound. The cabinet is constructed using 3/4-inch (19 mm) thick MDF with a 1-inch (25 mm) thick MDF front panel. An internal H-brace provides additional cabinet stiffness, and open cell adiabatic "foam fill" acoustic damping material absorbs internal reflections.
HR624 Active 2-Way Studio Monitor, HR626 Active 2-Way Studio Monitor, HRS120 Active Subwoofer, HRS150 Active Subwoofer
R E LA TE D PR O D U C TS

Applications

Near-field studio monitors Home Theater surround sound

SPEAKER

Acoustic Performance Free Field Frequency Response: Lower Cutoff Frequency: Upper Cutoff Frequency: Sound Pressure Level @ 1 meter, 7.5 dBu into Balanced Input: Max SPL Peak Per Pair:
Line Input Power US: Europe: AC Connector: Power Consumption:
HR824 Technical Specifications
39 Hz20 kHz, 1.5 dB 3 dB @ 37 Hz 3 dB @ 22 Hz 100 dB SPL @ 1m 120 dB SPL @ 1m 120 VAC, 60 Hz 230 VAC, 50 Hz 2-pin IEC 250 VAC, 16 A male 135 watts with music, loud mix 18 watts quiescent (idle) 8 watts in standby mode
Transducers Low Frequency: 8.75" (222 mm) with die-cast magnesium frame, mineral-filled polypropylene cone High Frequency: 1" (25 mm) viscous edge-damped aluminum alloy dome with ferrofluid cooled voice coil Passive Radiator: 6" x 12" (152 mm x 305 mm) mass-loaded elliptical flat piston composed of aluminum composite with variable thickness filleted edge rubber surround Amplifier Low Frequency Power: 150 watts, 4 load 350 watts peak High Frequency Power: 100 watts, 6 load 210 watts peak Slew Rate: >35V/s Distortion (THD, SMPTE IMD, DIM 100): <0.035% Signal-to-Noise Ratio: >102 dB referenced to 100 watts into rated load Type: FR Series Class AB Electronic Crossover Crossover Type: Modified Linkwitz-Riley, 24 dB/octave Crossover Frequency: 2000 Hz Sensitivity: 0 dBu nominal Input Impedance: 20 k, balanced bridging Compressor: Independent high and low frequency overload detection Equalization Acoustic Space EQ: Low Frequency EQ: Flat, 2 dB, 4 dB @ 100Hz, shelving 3 dB @ 37 Hz 2nd-order Transitional high-pass filter 3 dB @47 Hz 4th-order Chebyshev high-pass filter 3 dB @ 80 Hz 4th-order Butterworth high-pass filter 2 dB @ 10 kHz, shelving

Physical Enclosure:

3/4" (19 mm) thick MDF with 1" (25 mm) MDF front panel, internal H-brace Damping: Adiabatic foam Waveguide: Cast zinc Dimensions (HxWxD): 15.75" x 10.00" x 12.20" (400 mm x 254 mm x 310 mm) Weight: 33.6 lbs (15.2 kg)

HR824 Rear Panel

HIGH RESOLUTION STUDIO MONITOR
ACOUSTIC SPACE APPLICATIONS

QUARTER SPACE

CONSOLE

HALF SPACE

WHOLE SPACE

SPEAKERS IN CORNERS

SPEAKERS AGAINST WALL

SPEAKERS AWAY FROM WALLS

LOW CUT LOW CUT 24dB/oct BUTTERWORTH

37Hz 47Hz 80Hz

2dB 4dB

20 100Hz

10kHz +2dB

LOW FREQ

USE 80Hz TO EMULATE SMALL SPEAKER USE 47Hz FOR NORMAL LF PERFORMANCE USE 37Hz FOR NORMAL EXTENDED LOW FREQ PERFORMANCE

ACOUSTIC SPACE

ROOM COMPENSATION

HIGH FREQ.

0dB (START HERE) GUARANTEED FLAT USE FOR MOST APPLICATIONS +2dB: USE IF YOUR MIXES TRANSLATE BRIGHT 2dB: USE IF YOUR MIXES TRANSLATE DULL
FREE FIELD ACOUSTIC RESPONSE

+ 1.5dB 39Hz 20kHz

22 kHz 3dB

NORMAL

WHOLE (NORMAL)

INPUT SENSITIVITY

QUARTER HALF
80Hz 47Hz 37Hz LOW CUT (NORMAL)

0 +2dB (NORMAL)

STANDBY AUTO ON

POWER MODE

LISTED COMMERCIAL AUDIO EQUIPMENT 9Z39
INTERNAL BIAMPLIFICATION 150W. L.F. / 100W. H.F.
"MACKIE", "FR SERIES", AND THE "RUNNING MAN" FIGURE ARE REGISTERED TRADEMARKS OF MACKIE DESIGN INC.

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
AVIS: RISCQUE DE CHOC LECTRIQUE NE PAS OUVRIR

High Frequency EQ:

EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.

SERIAL NUMBER

CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC WOODINVILLE WA USA MADE IN USA PATENTS PENDING 1997 MACKIE DESIGNS INC. ALL RIGHTS RESERVED
SIGNAL INPUTS BAL/UNBAL PHONE XLR RCA

PATENT NO: DES. 387,351

MAINS INPUT 120VAC 60 Hz 150W

www.mackie.com

16220 Wood-Red Road NE, Woodinville, WA 98072 USA 800.898.3211, fax 425.487.4337, sales@mackie.com

UK +44.1268.570.808, fax +44.1268.570.809, uk@mackie.com
LOUD Technologies continually engages in research related to product improvement. New material, production methods, and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current LOUD Technologies product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated. 1999-2004 LOUD Technologies Inc. All rights reserved. Mackie and the "Running Man" figure are registered trademarks of LOUD Technologies Inc. Part No. 0004809 Rev B 09/04