TA1100 TA1600

The Hafler TA1100 & TA1600 (Trans*Amp) are two channel, two rack height, convection-cooled (No Fans), MOSFET (Metal Oxide Semiconductor Field Effect Transistor) power amplifiers. Both amps are suitable for various applications such as: Instrument amplification, DJ, Monitoring, Live Sound Reinforcement, and Permanent Installations. The circuitry used in the TA1600 is the latest refinement of our patented trans*nova (TRANSconductance NOdal Voltage Amplifier, US Patent 4,467,288) circuit. It has been proven to offer sound quality to satisfy the most analytic audiophile or the most demanding professional. The natural sound and realistic reproduction have made trans*nova amplifiers the choice in critical installations. They have proven extremely fault tolerant even in abusive situations. This ruggedness enables the amplifier to drive reactive speaker loads without the performance and sound penalties imposed by elaborate protection schemes. The TA1100 trans*ana (TRANSconductance Active Nodal Amplifier) circuitry has been very successful in bringing new levels of clarity and intelligibility to many broadcast facilities and headphone monitoring installations. Even at low power levels, the trans*ana MOSFET amplifier circuit imitates the accuracy and warmth of its bigger brother, the TA1600 trans*nova. Specialized circuits in both amplifiers prevent damage to the amplifiers and speakers, without affecting the audio signal. A soft start circuit prevents sending potentially destructive turn-on and turn-off transients to the speakers. A thermal sensing network monitors the heatsink and transformer temperature, and shuts down the amplifier to protect from excessive operating heat. The need for internal fuses has been eliminated. A sensing circuit monitors the output signal and shuts down operation when it detects a short in the output load. In addition, LED indicators give a visual representation of the operating status of each channel. Any type of fault (clipping, short protection, or thermal standby) will be indicated with a red LED. Hafler manufactures additional professional and home theatre amplifiers and monitors that offer an extreme level of performance and advanced technology. Visit our website at www.hafler.com for more information
Specifications TA1100/TA1600
Signal-to-Noise: CMRR: Input Impedance: Gain: Damping Factor: Controls & Switches: Indicators: Connectors: >102dB below rated output A weighted >65dB at 1kHz 47k per phase balanced 47k unbalanced 29dB maximum 350 (to 1kHz); 150 (to 10kHz); 18 (to 100kHz) Front Panel: Power Switch and Level Controls Power Lamp, Clip/Thermal/Protect LEDs Input: Balanced: 1/4Tip Ring Sleeve Unbalanced RCA Output: 1/4 Phone, Spring Clip Headphone: 1/4 Power: IEC 320 19W x 8 1/2D x 3 1/2H (2 rack space) (48cm x 25cm x 8.9cm) 22 lbs (9.98kg)

Dimensions: Net Weight:

TA 1100
Power Rating: 1kHz, 0.1% THD 50 wpc into wpc into 8 Frequency Response: 0.1dB, 20Hz to 20kHz +0/-3dB, 1.0Hz to 100kHz Slew Rate: 20V/s Input Sensitivity for rated output power: Unbalanced: 0.640V RMS (8), 0.510V (4)Balanced: 0.320V (8), 0.250V (4) per phase Power Consumption: 40VA quiescent

TA 1600

1kHz, 0.1% THD 75 wpc into wpc into 8 Frequency Response: 0.1dB, 20Hz to 20kHz +0/-3dB, 1.0Hz to 300kHz Slew Rate: 100V/s Input Sensitivity for rated output power: Unbalanced: 0.780V RMS (8), 0.620V (4) Balanced: 0.390V (8), 0.310V (4) per phase Power Consumption: 60VA quiescent Power Rating:
546 SOUTH ROCKFORD DRIVE TEMPE, ARIZONA 85281 U.S.A. / 1-866-GOHAFLER WWW.HAFLER.COM

Specifications

TA1100/TA1600
Signal-to-Noise: CMRR: Input Impedance: Gain: Damping Factor: Controls & Switches: Indicators: Connectors: >102dB below rated output A weighted >65dB at 1kHz 47k per phase balanced 47k unbalanced 29dB maximum 350 (to 1kHz); 150 (to 10kHz); 18 (to 100kHz) Front Panel: Power Switch and Level Controls Power Lamp, Clip/Thermal/Protect LEDs Input: Balanced: 1/4 Tip Ring Sleeve Unbalanced RCA Output: 1/4 Phone, Spring Clip Headphone: Dimensions: Net Weight:
Power: IEC 320 19W x 8 1/2D x 3 1/2H (2 rack space) (48cm x 25cm x 8.9cm) 22 lbs (9.98kg)

TA 1100

Power Rating: 1kHz, 0.1% THD 50 wpc into wpc into 8 Frequency Response: +0/-3dB, 1.0Hz to 100kHz Slew Rate: 20V/s 0.1dB, 20Hz to 20kHz
Input Sensitivity for rated output power: Unbalanced: 0.640V RMS (8), 0.510V (4) Balanced: 0.320V (8), 0.250V (4) per phase Power Consumption: 40VA quiescent

TA 1600

Power Rating: 1kHz, 0.1% THD 75 wpc into wpc into 8 Frequency Response: 0.1dB, 20Hz to 20kHz +0/-3dB, 1.0Hz to 300kHz Slew Rate: 100V/s
Input Sensitivity for rated output power: Unbalanced: 0.780V RMS (8), 0.620V (4) Balanced: 0.390V (8), 0.310V (4) per phase Power Consumption: 60VA quiescent
NOTICE - IMPORTANT SAFETY INFORMATION

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN
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. 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. equipment. Furthermore, extension cords or power strips must provide the same three wire grounded connection. It is important that the blades of the equipments plug be able to fully insert into the mating receptacle. Never remove the round grounding pin on the plug in an attempt to mate to a two wire ungrounded receptacle: use a grounding adapter with the grounding tab or wire suitably connected to earth ground. 11. NON-USE PERIODS During periods of extended non-use, the power cord should be unplugged from the power source. 12. CLEANING The equipment should be cleaned only as detailed in the operating instructions. 13. OBJECT AND LIQUID ENTRY Care should be taken so that objects and/or liquids, such as cleaning fluids or beverages, are not spilled into the enclosure of the equipment. 14. DAMAGE REQUIRING SERVICE Hafler equipment should be serviced by qualified service personnel when: A. The power supply cord or plug has been damaged, or B. Objects have fallen, or liquid has been spilled into the equipment, or C. The equipment has been exposed to rain, or D. The equipment does not appear to operate normally or exhibits a marked change in performance, or E. The equipment has been dropped, or the enclosure has been damaged. 15. SERVICING The user should not attempt to service the equipment beyond that which is described in the operating instructions. All other service should be referred to qualified service personnel. 16. CARTS AND STANDS The equipment should be used with carts or stands only of sufficient strength and stability for the use intended. An equipment and cart combination should be moved with care. Quick stops and starts, excessive force, and uneven sur faces. ii
TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

WARNING:

Read Instructions All the safety and operating instructions of your Hafler equipment should be read before power is applied to the equipment. Retain Owner's Manual These safety and operating instructions should be retained for future reference. HEED WARNINGS All warnings on the equipment and in the operating instructions are important and should be followed. FOLLOW INSTRUCTIONS All operating and use instructions are important and should be followed. HEAT The equipment should be kept away from areas of high temperature, i.e., heater vents, radiators, stoves/ovens, fireplaces, etc. VENTILATION The equipment should be used in an area suitable for proper ventilation. Care should be taken not to impede airflow in and around the cabinet. Do not mount on a carpeted shelf or in a sealed enclosure. Allow for proper clearance above the equipment. WATER AND MOISTURE The equipment should not be used in or around water, such as a bathtub, sink, or swimming area. Also, the equipment should not be used in areas prone to flooding, such as a basement. POWER SOURCES The equipment should be connected only to a power source of the same voltage and frequency as that listed on the rear panel above the power cord entry point. POWER CORD PROTECTION Power cords should be arranged so they do not interfere with the movement of objects in the room: people, fan blades, utility carts, etc. Also, care should be taken that the cord is not pinched or cut, and placed so it is not in danger of being pinched or cut, as in under a rug, around a tight corner, etc.

Introduction

The Hafler TA1100 and TA1600 are two channel, two rack height, convection-cooled, MOSFET power amplifiers suitable for use in the most demanding applications of critical listening and instrument amplification. These amplifiers offer the same outstanding sonic quality and reliability that has contributed to Haflers enviable reputation within professional recording studios and broadcast facilities all over the world. This manual contains information on using the TA1100 and TA1600 amplifiers. It is organized into two main sections. Installation covers the location and connection of the amplifier in the system. Like many precision components, careful attention to the initial setup can yield dividends in higher performance and trouble-free use. Operation covers the controls and features of the amplifiers and how to use them to get the best effect. The circuitry used in the TA 1600 is the latest refinement of our patented transnova (TRANSconductance NOdal Voltage Amplifier, US Patent 4,467,288) circuit. It has been proven to offer sound quality to satisfy the most analytic audiophile or the most demanding professional. The natural sound and realistic reproduction have made transnova amplifiers preferred in many critical installations. Since our pioneering use of MOSFETs in the DH-200 amplifier, they have proven extremely fault tolerant even in abusive situations. This sturdiness enables the amplifier to drive reactive speaker loads without the performance and sound penalties imposed by elaborate protection schemes. The TA1100 transana circuitry has been very successful in bringing new levels of clarity and intelligibility to many broadcast facilities and headphone monitoring installations. Even at low power levels, the transana MOSFET amplifier circuit imitates the accuracy and warmth of its bigger brother, the TA1600 transnova. Specialized circuits in both amplifiers prevent damage to the amplifiers and speakers, without affecting the audio signal. A soft start circuit prevents sending potentially destructive turn-on and turn-off transients to the speakers. A thermal sensing network monitors the heatsink and transformer temperature, and shuts down the amplifier to protect from excessive operating heat. The need for internal fuses has been eliminated; a sensing circuit monitors the output and shuts down operation when it detects a short in the output load. The front panel has controls for input level adjustment. In addition, LED indicators give a visual representation of the operating status of each channel. Any type of fault - whether it is clipping, short protection, or thermal standby - will be indicated with a red LED. Hafler manufactures additional Professional and Home Theatre amplifiers and monitors that offer an extreme level of performance and advanced technology. Visit our website at www.hafler.com for more information.

Design Features

1. Input level control 2. Clip/Thermal/ Protect LED 3. Power switch 4. Headphone jack
1. Balanced 1/4 input 2. Unbalanced RCA input 3. IEC line cord connector 4. Line fuse compartment 5. 1/4 mono speaker output 6. Spring clip output 5

Installation

LOCATION The TA1100 and TA1600 power transformer can generate a substantial magnetic field, so caution should be exercised in the placement of low level components such as a tape deck, mixer or mic preamp to avoid inducing noise in the low level circuitry. The amplifiers can also produce considerable heat in normal operation, so the primary consideration when determining a location for the amplifiers is to allow for adequate ventilation. The large heatsinks provide unrestricted airflow, but care must be taken to keep the slots in the bottom panel and top cover clear. Use the rubber feet if the amplifier is placed on a flat surface. If the amplifier is mounted in an equipment rack, make sure adjacent equipment does not impede cool air flow. We recommend leaving one rack space above and below the amplifier for proper cooling. Inadequate ventilation can shorten component life, especially when other equipment raises the ambient air temperature, so circulating fans should be considered in tight quarters. AC LINE The TA1100 and TA1600 operate from a 120 volt, 60Hz AC power line. Connection is made by a 16 gauge, IEC Type 320, grounded line cord. For safety considerations only a properly grounded (earthed) receptacle should be used. If a grounded circuit is not available do not break off the ground pin; use the proper adapter plug for a two wire receptacle. The line fuse mounted on the rear panel will interrupt power to the amplifier if an internal fault is detected. If this fuse blows, replace it with the same type and rating fuse only. The correct replacement fuse value is printed on the rear panel of the amplifier. If the new fuse blows, this is an indication of a fault with the amplifier. Servicing should be performed only by a qualified technician. INPUT The input jacks on the back of the amplifier will accept either 1/4 balanced, 1/4 unbalanced, or RCA unbalanced inputs. If both jacks are used simultaneously, the 1/4 input will automatically activate internal switches and disconnect the RCA input, so that only the 1/4 input remains operational. OUTPUT Speakers can be connected to the amplifier with 1/4 mono plugs, or bare wires into spring clip connectors. Polarity of the
1/ connectors is Tip (+) and Sleeve (-). 4

HUM It is not unusual to experience objectionable hum in even the simplest audio systems. If you are hearing hum in the speakers or headphones, here is a very effective test that will help you troubleshoot your system, and eliminate the problem: CAUTION: DO NOT PERFORM THIS TEST WITH HEADPHONES. PROTECT YOUR EARS. MONITOR THE OUTPUT OF YOUR AMPLIFIER AT A SAFE DISTANCE AWAY FROM FULL- RANGE SPEAKERS. Hum Test: Step 1: Turn off the amplifier, turn both level controls all the way down, disconnect all input cables, disconnect headphones. Step 2: Connect a full- range speaker to the output of One CHANNEL of the amplifier. Step 3: Turn on amplifier. Slowly turn up the level controls and listen for hum. Turn level control back down and turn off the amplifier. If the hum level was low, then the amplifier is not the source of the hum problem. Step 4: Repeat this procedure on the remaining channel.
1/4" TRS Balanced Input
Check output of source unit for proper signal polarity
1/4" TRS Unbalanced Input

Ring Sleeve

Sleeve
Tip = (+) Ring = () Sleeve = GND

Tip = (+) Sleeve = GND

RCA Unbalanced Input
Tip Shell Tip = (+) Shell = GND

Operation

POWER SWITCH The POWER switch is located on the front panel of the amplifier. An internal lamp indicates when it is turned on. Standard practice is to turn the amplifier on last and off first when switching components to prevent sending damaging transients to the speakers. It is possible to leave the power switch in the on position and switch the amplifier remotely through a power distribution block or preamp switched outlet. When doing so make sure the switch is rated for the current required by the amplifier. LEVEL SETUP The input sensitivity for each channel can be adjusted individually using the Level Controls on the front panel. Set up the amplifier Level Controls such that the amplifier clipping LEDs light occasionally when the source unit level control is turned up approximately 2/3 to 3/4 full on. Turning up the amplifier level controls any further than this will not make the amplifier any louder! It will only increase the noise floor (hum and hiss) TA 1100 - SHORT CIRCUIT PROTECTION In the event of a short in the speaker load or cables, the protection circuit will automatically shut down the amplifier and illuminate the red LED. When the short is removed, the red LED will turn off, and the signal will return to normal.

TA 1600 - SHORT CIRCUIT PROTECTION The TA1600 amplifier circuit has no need for sonically degrading voltage and current limiting circuits. To protect the amplifier from problems which may occur in the speaker line there is an overload detection circuit.
In the event of a short in the speaker load or cables, the speaker detection circuit will shut down that channel and light the red front panel indicator. If this happens, correct the fault and turn the amplifier off, then back on. This will reset the amplifier.
WARM UP In order to achieve the best sonic performance from the amplifier, we recommend letting it warm up for 1 hour before beginning any critical listening. The amplifier may not deliver its full potential sound quality before this time has passed. Many users leave Hafler amplifiers on indefinitely to ensure the best operation without delay. CLEANING AND MAINTENANCE There is no requirement for regular maintenance on the electronic components of the amplifier. If the case becomes soiled it can be cleaned using a soft cloth and a mild detergent, such as spray window or glass cleaner. If the amplifier is located in a particularly dusty environment cleaning the inside with compressed air or vacuuming every 18 to 24 months is sufficient.

Troubleshooting

SYMPTOM No Power DIAGNOSIS

Line voltage not present

REMEDY
Check the line fuse on the back panel, line cord connections, power strip switch, wall receptacle switch, and breaker.

No Sound

Check connections, substitute with known RCA or 1/4 input from source unit is not connected working source and cables and repair or or not functioning properly replace as necessary. Speaker leads are shorted, or Disconnect existing speakers and wires and replace with known working speakers and speakers are blown wires. If amplifier works, check and repair wiring and speakers as needed.
No Sound - Red LED on TA1600
Protection circuit has activated
Reset the amplifier by turning the power off, then back on again. If protection activates again, check for shorted speaker wires or blown speakers. Adjust the system headroom. First, turn the source unit level control up to 3/4 maximum. Next, turn the amplifier level controls down until the clip LED activates occasional, only during peak audio events.
Hum in Speakers or Headphones

Too much system Gain

Ground Loop (Balanced Input Only)
Try disconnecting the ground wire on both 4balanced cables

Service Policy & Limited Warranty
Please contact Hafler for any Warranty issues.
Hafler offers the following limited warranty on Hafler products. Length of Warranty 1 year on TA1100 and TAdays on all B-Stock electronics (receipts are required) What is Covered This warranty applies only to products sold to the original owner (non-transferable). This only applies to units sold in the Continental United States. You are required to have a copy of the receipt stating the customer's name, dealer name, product purchased and date of purchase. Products found to be defective during the warranty period will be repaired or replaced (with product deemed to be equivalent) at Hafler's discretion. What is NOT Covered 1. Damage caused by accident, abuse, improper operation, water, theft 2. Service performed by anyone other than Hafler or an Authorized Hafler service center 3. Any product purchased outside the United States (please contact your local dealer) 4. Shipping charges to get the unit to Hafler 5. Any product which has had the serial number defaced, altered, or removed Limit on Implied Warranties Any implied warranties including warranties of fitness for use and merchantability are limited in duration to the period of the express warranty set forth above. Some states do not allow limitations on the length of an implied warranty, so this limitation may not apply. No person is authorized to assume for Hafler any other liability in connection with the sale of the product. How to obtain service or technical support Please call 1-800-669-9899 for Rockford/Hafler support. You must obtain an RA # (return authorization number) to return any products to Hafler. You are responsible for shipment of product to Hafler.Always include proof of purchase. Mark RA# on outside of shipping carton.
Rockford Corporation Hafler Division - receiving amps. 2055 E. 5th Street Tempe, Arizona 85281
HAFLER A DIVISION OF ROCKFORD CORPROATION 546 SOUTH ROCKFORD DRIVE TEMPE, ARIZONA 85281 U.S.A. 480-967-3565 / 1-888-HAFLER1 WWW.HAFLER.COM

MADE IN TAIWAN

M.J.T. 6/00