AKG Hearo 777 Surround
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AKG Hearo 777 Surround
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Dear customer: Thank you for purchasing an AKG product. The HEARO 777 SURROUND wireless headphone system is based on advanced UHF transmission technology. The IVA processor and the Dolby Surround Pro Logic decoder provide optimum spatial reproduction for speech, music, TV and video sound, multimedia PC applications, and video games. An Autotuning function that automatically tunes the receiver to the carrier frequency selected on the transmitter adds to the user-friendliness of the HEARO 777 SURROUND In order to make optimum use of the benefits of your HEARO 777 SURROUND, please take a few minutes to read the instructions below carefully before operating the equipment. Please keep the manual for future reference.
Operate the headphones with two AAA size 1.2 V rechargeable (supplied) or 1.5 V dry batteries only. Never try to charge dry batteries using the transmitters charging feature. Before charging the headphones batteries, always make sure that the batteries in the headphones are rechargeable types. Dispose of spent dry or rechargeable batteries conforming to local waste disposal rules. Never throw batteries into the fire. Operate the transmitter with the supplied 12 VDC, 300 mA AC adapter only. Check that the AC voltage stated on the AC adapter is the same as that available in your country. Using the transmitter with a different AC adapter voids the warranty. 6. Always switch the headphones OFF after use. 7. Never try to open the headphone or transmitter case. Refer servicing to qualified service personnel only. 8. Never place the equipment near heat sources such as radiators or electric heaters, or expose it to direct sunlight, excessive dust, humidity, rain, vibrations, or impacts. 9. Never use alcohol, petroleum-based cleaners, or paint thinners to clean the headphone or transmitter case. 10. If you do not use your transmitter for an extended period of time (e.g., when traveling), disconnect the AC adapter from the AC outlet. 11. Also refer to section 7 Important Notes. 1. 2. 3. 4. 5.
3.1 General The HEARO 777 SURROUND headphone system uses state-of-the-art UHF radio transmission technology; uses automatic gain control (AGC) to modulate the transmitter RF section for high transmission quality; connects to any audio, video, TV set, or PC with a headphones or line output; provides perfect sound reproduction, full mobility, and signal transmission through walls and ceilings over a distance of up to 330 feet (100 m); features an Autotuning function that automatically tunes the headphones to the transmitter frequency for optimum reception; uses proprietary IVA technology for exceptionally realistic, three-dimensional listening; features an integrated Dolby Surround Pro Logic decoder for perfect reproduction of hi-fi, TV, PC, or video sound in Dolby surround format; provides an analog line output for connecting an external headphones amplifer for hardwire headphones.
The HEARO 777 SURROUND system is available for two different LPD frequency bands: 914 MHz for the US and 864 MHz for various European countries (864 MHz version shown on the cover). The HEARO 777 SURROUND system lets you share your listening enjoyment with other persons. You can operate your transmitter with several headphones simultaneously. Make sure to use wireless headphones operating in the same UHF frequency band as the HEARO 777 SURROUND. 3.2 IVA - Individual Virtual Acoustics One drawback of headphone listening is the psychoacoustic phenomenon of inside localization: the orchestra seems to play inside your head rather than in the room. AKG developed a binaural audio processing techniquecalled IVA (Individual Virtual Acoustics) that models the way the head and pinnae change the arriving sound waves (ear matching function). Thus, the various sound sources will seem to be located outside your head even when you are using headphones. A: Natural hearing: Due to the effect of the head and pinnae, sound waves arriving at one ear differ from those arriving at the other. Amplitude and phase differences create a sense of spatial hearing.
B: Listening through headphones: Amplitude and phase differences are eliminated. Sound sources are localized inside the head rather than in the room.
C: Listening through headphones with IVA processing: The ear matching function modifies the audio signals at the ears to resemble diagram A. This restores natural, spatial hearing.
3.3 Dolby Surround Pro Logic Decoder The Dolby Surround Pro Logic decoder integrated in the transmitter uses the stereo input signal to derive two additional signals, a center and a surround channel. The IVA circuitry generates from these signals a binaural signal equivalent to reproduction through five high quality loudspeakers (3 front, 2 rear speakers). This allows you to enjoy all the benefits of Dolby surround sound even through headphones. 11
Your headphones system comprises the following components: 1 pair of headphones 1 transmitter with integrated battery charger 2 stereo connecting cables with gold plated connectors for linking the transmitter to your audio source: 1 RCA cable, 1 jack cable (mini jack to 2 x RCA connectors) 1 mini jack/1/4 jack adapter 1 AC adapter for powering the transmitter 2 1.2 V AAA size NiMh rechargeable batteries for powering the headphones (inside the headphones) If anything is missing, contact your AKG dealer immediately.
POWER switch Green POWER indicator LED Charging contacts Battery compartment (beneath the ear pad) AUTOTUNING switch: activates the automatic tuning function VOLUME control
5.2 Transmitter 5.2.1 Front Panel
CHARGE: This tri-color LED indicates charging and operating modes ON: Switches power to the transmitter ON (left) and OFF (right). INPUT LEVEL: This bi-color LED indicates the signal level at the transmitter input. When the level is in the optimum range, the LED will light green intermittently to constantly. When the input stage is overloaded, the LED will light orange. 10. STEREO: This green LED lights to indicate the transmitter is in stereo mode. 12
11. IVA STEREO: This green LED lights to indicate the IVA processor is switched in. 12. IVA SURROUND: This green LED lights to indicate that both the Dolby Surround Pro Logic decoder and the IVA processor are active. 13. SELECTOR: This three-position slide switch selects stereo, IVA, and Surround + IVA modes. 5.2.2 Rear Panel
INPUT L/R: Left and right RCA audio input jacks. OUTPUT L/R: Left and right RCA audio output jacks. DC 12 V: DC input jack for AC adapter FREQ. ADJUST: frequency tuning control INPUT LEVEL: This rotarty control sets the input level to the IVA and Surround processors as well as the entire audio section. The RF section is modulated automatically by an AGC circuit. 19. Charging pins (see fig. 2)
6 Operating Notes
6.1 Connecting the Transmitter to AC Power 1. 2. Connect the cable on the supplied AC adapter to the DC 12 V jack (16) on the transmitter rear panel as shown in fig. 3. Check that the AC voltage stated on the AC adapter is the same as that available in your country. If it is, connect the AC adapter to a convenient AC outlet (see fig. 4).
6.2 Connecting the Transmitter to Your Audio Source You may connect the transmitter either to a headphones output (mini jack or 1/4 jack), LINE, or REC outputs. 6.2.1 Connecting to a Headphones Output 1. Before connecting the transmitter to your audio source, switch the audio source OFF. 2. Referring to fig. 5, plug the red RCA connector (right channel) on the supplied jack cable into the red INPUT R socket (14) and the white RCA connector (left channel) into the white INPUT L socket (14) on the transmitter rear panel. 3. Connect the stereo mini jack plug of the jack cable to the headphones output of your audio source (refer to fig. 6). 4. If the headphones output on your equipment is a 1/4 jack, plug the supplied mini jack to 1/4 adapter jack onto the jack cable. Connect the adapter jack to the headphones output. 6.2.2 Connecting to a LINE or REC Output 1. Before connecting the transmitter to your audio source, switch the audio source OFF. 2. Use the supplied RCA cable to connect the white LINE OUT L or REC OUT L jack on your audio source to the white INPUT L jack (14) on the transmitter rear panel and the red LINE OUT R or REC OUT R jack to the red INPUT R jack (14). 6.2.3 Connecting to TAPE Inputs By connecting your HEARO 777 SURROUND to the TAPE or PLAYBACK inputs on your amplifier, you can enjoy IVA and surround sound through an extra pari of wired headphones in addition to the wireless phones. Proceed as follows: 1. Switch you audio source OFF. 2. Use the supplied RCA cable to connect the white LINE OUT L or REC OUT L jack on your audio source to the white INPUT L jack (14) on the transmitter rear panel and the red LINE OUT R or REC OUT R jack to the red INPUT R jack (14). 3. Use another RCA cable (not supplied) to connect the white TAPE IN or PLAYBACK IN jack on the amplifier to the white OUTPUT jack (15) on the HEARO 777 SURROUND rear panel and the red TAPE IN or PLAYBACK IN jack on the amplifier to the red OUTPUT jack (15) on the HEARO 777 SURROUND rear panel. 4. Connect your wired headphones to the headphones jack on your amplifier. 13
Refer to the operating manual of your amplifier for instructions on how to listen to and disable the signal at the TAPE or PLAYBACK input. On most amplifiers, you can push the TAPE MONITOR switch IN to listen to the processed signal and OUT to cut the processed signal. Important: In this mode, the loudspeakers will also reproduce the processed signal present at the headphones output. Since IVA and/or surround processed signals are not loudspeaker compatible, mute the loudspeakers while listening through headphones. When listening over loudspeakers, cut the processed signal. 6.3 Charging the Batteries in the Headphones In order to ensure the longest possible service life for the rechargeable batteries, we deliver them uncharged. Therefore, charge the supplied batteries before first operating your headphones system. The supplied batteries have been inserted into the headphones for your convenience. WARNING: If you operate the headphones on dry batteries, never try to charge the batteries using the transmitters charging feature. This would cause serious damage to your headphone system. Dispose of spent batteries conforming to local waste disposal rules. 1. 2. Use the POWER switch (1) to switch the headphones off. When the power is off, the POWER LED (2) will be dark. Referring to fig. 11, place the headphones on the transmitter such that the charging pins (19) on the transmitter (see fig. 2) will engage the charging contacts (3) on the bottom of the left-hand earphone. The CHARGE LED (7) on the transmitter will light red to indicate that the batteries in the headphones are being charged. If signal is present at the transmitter audio input, the CHARGE LED (7) will light orange. The batteries will be fully charged after approximately 14 hours. (The CHARGE LED (7) will continue lighting red.). You may leave the headphones on the transmitter for as long as you like without risking to overcharge the batteries.
Important: In order to maintain full battery capacity for as long as possible, discharge the batteries completely about once a month: Switch the headphones ON and leave them outside the transmitter until the POWER LED (2) extinguishes. Recharge the batteries. 6.4 Replacing Batteries The capacity of any rechargeable battery will decrease over time. If you feel that you need to recharge the supplied batteries more often than would be convenient, you may consider replacing the batteries with new AAA size 1.2 V rechargeable or 1.5 V alkaline dry batteries. 1. 2. 3. 4. Remove the ear pad from the left-hand earphone as shown in fig. 9. Remove the old batteries. Referring to fig. 10, insert the new batteries into the battery compartment (4). Make sure to align the batteries with the polarity marks inside the battery compartment. Replace the ear pad on the earphone aligning the four pins on the ear pad with the matching openings in the earphone base plate.
6.5 Setting Up the System Remove the headphones from the transmitter. Switch ON the audio source to which the transmitter is connected. Slide the ON switch (8) on the transmitter to the left to switch the transmitter on. All front panel LEDs will flash momentarily. Note that the transmitter will not switch on until it detects an audio signal at the INPUT L/R jacks. If audio signal is present at the transmitter input, the CHARGE LED (7) on the transmitter will light green. Important Note: If no signal arrives at the transmitter input for approx. 3 minutes, the transmitter will automatically switch off and the CHARGE LED (7) will extinguish. The transmitter will also switch off automatically if the signal level at the audio input is too low. In this case, turn the volume or headphones control on your audio source up to the point that the transmitter will switch back on. 4. Use the INPUT LEVEL control (18) on the transmitter rear panel to set the input level so that the front panel INPUT LEVEL LED (9) will light green intermittently or constantly and flash orange only on the loudest signal peaks. 5. Set the FREQ. ADJUST control (17) on the transmitter to its center position. 6. Use the POWER switch (1) to switch the headphones ON. The green POWER LED (2) will light. 7. Press the AUTOTUNING switch (5) on the headphones. The Autotuning function will automatically tune the receiver to the carrier frequency set on the transmitter. After a few seconds, you should hear the signal in the headphones clearly and free of interference. If your first try fails, set the FREQ. ADJUST control (17) to a different position and press AUTOTUNING (5) again. Be sure not to 14 1. 2. 3.
rotate FREQ. ADJUST (17) all the way CW or CCW because optimum reception may not always be guaranteed at the ends of the frequency band. 8. Set the VOLUME control (6) on the headphones to the desired volume level. Note: If the transmitter signal is disturbed, e.g., by reflections (multipath reception) or shadow effects, the headphones will automatically mute. This function eliminates interference related noise. 6.6 SELECTOR Switch (Fig. 1) The SELECTOR switch (13) lets you select the desired reproduction modes of your HEARO 777 SURROUND. The SELECTOR switch (13) has three positions: Left: STEREO for standard stereo reproduction. The input signal is transmitted unchanged. In stereo mode the green STEREO LED (10) will light. We recommend STEREO mode for stereo music and speech reproduction. Center: IVA STEREO. The IVA processor converts the stereo input signal to a binaural signal. The ear matching function provides a natural sonic perspective with no inside localization. In IVA stereo mode the green IVA STEREO LED (11) will light. We recommend IVA STEREO mode for 3-D music and speech listening. Right: IVA SURROUND. The Dolby Surround Pro Logic Decoder, in conjunction with the IVA processor, simulates five loudspeaker channels (front left, center, right and rear left and right) for surround sound in the headphones. In IVA SURROUND mode the green IVA SURROUND LED (12) will light. We recommend IVA SURROUND mode for radio drama, TV, PC applications, video, surround sound and pop music recordings. 6.7 CHARGE LED Status If LED is. lighting green: Transmitter. is connected to AC power and audio source, switched ON, and receives signal. Headphones are not on the transmitter, charging function is off. is connected to AC and audio source, switched ON, and receives signal. Headphones are on the transmitter, charging function is on. has detected no signal for several minutes, headphones are on the transmitter, charging function is on. has detected no signal for several minutes, headphones are not on the transmitter, charging function is off, OR is not connected to AC power or switched OFF.
lighting red: dark:
7 Important Notes
1. Operating switches on or connecting the transmitter to your audio source may cause clicks which at high volume settings may affect your hearing. Therefore, be sure to set the VOLUME control on the headphones to minimum before switching between different sources (tuner, turntable, CD player, etc.) or connecting the transmitter. Listening over headphones at high volume levels, particularly over extended periods of time, may damage your hearing. Your HEARO 777 SURROUND is a radio frequency device that conforms to the strict European and FCC standards. For physical reasons that are not related to the quality of the product, extremely strong interference sources may affect reception. In order to maintain interference-free listening pleasure, do not operate your HEARO 777 SURROUND in the close vicinity of radio equipment, cellular telephones, or directly above TV or computer monitor picture tubes. The supplied connecting cables are long enough to allow the transmitter to be placed at a safe distance from interference sources. Interference caused by other users of the 914 or 864 MHz LPD band are beyond AKGs control.
Symptom No sound. 1. 2. 3. 4. 5. 6. 7. CHARGE LED does not light. 1. 2. 3. Possible Cause AC adapter is not connected to transmitter and/or AC outlet. Transmitter is OFF or not connected to audio source. Connected audio source is switched off. Volume control on audio source is set too low Batteries are low. Headphones are switched off. Volume control on headphones/transmitter is at zero. Transmitter is not connected to AC power. Batteries are not correctly aligned with polarity marks. Headphones are incorrectly positioned on transmitter. Connected audio source operates in mono mode. Transmitter is not correctly connected to audio source. Transmitter and receiving frequencies are not identical. 1. 2. 3. 4. 5. 6. 7. 1. 2. 3. Remedy Connect AC adapter to transmitter and/or AC outlet. Switch transmitter on or connect to audio source. Switch audio source on to feed signal to transmitter input. Increase audio source volume to the point that transmitter switches back on. Charge batteries. Switch headphones on. Set volume control to desired level. Connect transmitter to AC power. Check orientation of batteries in battery compartment. Place headphones on transmitter correctly.
Switch audio source to stereo mode. Check cable connection between transmitter and audio source. Press AUTOTUNING switch on headphones or use FREQ. ADJUST control to select different carrier frequency and press AUTOTUNING on headphones. Turn up audio source volume control and/or INPUT LEVEL control on transmitter. Check audio source. Charge batteries. Turn down audio source volume control and/or INPUT LEVEL control on transmitter. Use FREQ. ADJUST control on transmitter to change carrier frequency and press AUTOTUNING switch on headphones. Charge batteries. Switch off any suspicious appliances (if possible). Check audio source or sound carrier. Use FREQ. ADJUST control on transmitter to change carrier frequency and press AUTOTUNING switch on headphones. Readjust bass or treble controls.
2. 3. 4. Distorted sound. 1. 2.
Audio level at transmitter input is too low. Input signal is noisy. Batteries are low. Audio level at transmitter input is too high. Transmitter and headphones carrier frequencies do not match exactly. Batteries are low. Electrical appliances with poor interference protection. Audio source or sound carrier defective. A neighbor uses similar UHF headphones.
2. 3. 4. 1. 2.
3. Intermodulation noise. 1. 2. Headphones receive 1. unwanted transmitters. Overemphasized bass or treble range: 1.
Bass or treble control settings on audio source.
System Performance Modulation: Carrier frequency band: Transmitter Power supply: Radiation angle: Weight: Max. range: Headphones Power supply: Battery life: Frequency range: Max. SPL: Weight: Distortion: Type: FM 914 or 864 MHz (LPD band) 12 VDC, 300 mA 360 approx. 15.9 oz. (450 g) approx. 330 ft. (100 m) 3 VDC (2 x 1.2 V AAA size NiMh rechargeable batteries supplied) approx. 20 hours (NiMh rechargeable batteries) 20 Hz to 24,000 Hz >115 dB SPL approx. 8.1 oz. (230 g) <1% semi-open dynamic headphones
10 Warranty Conditions
AKG warrants AKG products against evident defects in material and workmanship for a period of one year from the date of original purchase for use. This Warranty does not cover damage resulting from misuse or abuse, or lack of reasonable care, or inadequate repairs performed by unauthorized service centers. Performance of repairs or replacements under this Warranty is subject to submission of the sales slip. Shipment of defective items for repair under this Warranty will be at the customers own risk and expense. This Warranty is valid for the original purchaser only. This Warranty does not cover dry or rechargeable batteries. Limited Warranty (valid in the United States only) AKG warrants AKG products against evident defects in material and workmanship for a period of one year and agrees to repair or, at our option, replace any defective unit without charge for either parts or labor. This Warranty does not cover dry or rechargeable batteries. Important: This Warranty does not cover damage resulting from accident, misuse or abuse, lack of reasonable care, the affixing of any attachment not provided with the product, loss of parts, or connecting the product to any but the specified receptacles. This Warranty is void unless service or repairs are performed by an authorized service center. No responsibility is assumed for any special, incidental, or consequential damage. However, the limitation of any right or remedy shall not be effective where such is prohibited or restricted by law. Simply take or ship your AKG products prepaid to our service department. Be sure to include your sales slip as proof of purchase date. (We will not repair transit damage under the no-charge terms of this Warranty.) Note: No other warranty, written or oral, is authorized by AKG Acoustics. This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Some states do not allow the exclusion or limitation of incidental or con-sequential damage or limitations on how long an implied warranty lasts, so the above exclusion and limitations may not apply to you.
HEARO 777 QUADRA WIRELESS SURROUND HEADPHONES
SYSTEM WIRELESS HEADPHONES
WIRELESS HEADPHONE SYSTEM WITH INTEGRATED SURROUND DECODER
Does the HEARO provide the same powerful sound as a theater system? YES. The XXL speaker capsule uses the patented
Varimotion diaphragm to ensure accurate reproduction even at high listening levels. The result is extremely airy mid and high frequencies and a powerful bass range.
Professional live sound, recording, and TV sound engineers around the world have preferred AKG audio equipment for more than fifty years. One of the reasons is the large number of patents for innovative technologies that made AKG the number one manufacturer of first-generation wireless surround headphones. With the HEARO 777 QUADRA and HEARO 777 QUADRA DELUXE, AKG presents the next generation of wireless surround headphones with revolutionary eight-channel technology for the most spectacular home theater experience yet. The new wireless surround headphones provide up to eight virtual channels of audio, with no real loudspeakers or cables!
FAQs* Is it true that I need no extra equipment to get surround sound from a HEARO? YES. Each HEARO headphone system from AKG uses two
integrated surround decoders. The HEARO 777 QUADRA and the HEARO 777 QUADRA DELUXE feature not only the worldfamous Dolby Surround Pro-Logic decoder but also a LOGIC7 decoder previously used in professional or high-end equipment only. The decoders allow internal processing of all analog and digital surround formats. All you need to do to enjoy the drama of surround sound is connect the HEARO to the headphone output on your TV, video recorder, hi-fi amplifier, CD or DVD player, or computer.
Do headphones actually provide the same sense of space as loudspeakers? YES. IVA processing developed by AKG creates special
headphone signals that sound as if they came from loudspeakers. Conventional stereo headphones are known to flatten the sonic perspective because they eliminate the amplitude and phase shifts our brain needs to localize sounds in space. IVA processing restores these aural cues to create a headphone sound that is as natural as if you
Do HEARO headphones work without a cable? YES. The HEARO uses radio signals that will even pass
through walls and ceilings and a three-channel PLL frequency synthesizer for reliable, consistent reception so you can enjoy your favorite surround programs not only in your living room but also in the basement or garden.
werent using headphones at all.
What is eight-channel technology?
Eight-channel technology takes the worldwide standard of five-channel surround a big step further. Instead of five, the new format simulates up to eight virtual speakers distributed around the room, creating an incredibly spacious sound. All the required hardware is inside the LOGIC7 decoder.
*Frequently Asked Questions
The HEARO 777 QUADRA and QUADRA DELUXE are so easy to use:
Push the MODE switch to select the audio format. You can switch to straight stereo or activate one of the two integrated surround decoders:
Stereo: Normal stereo with no 3-D processing. Same sound as that of conventional stereo headphones.
Stereo + IVA: Natural, spatial stereo perspective. The sound seems to come from a pair of stereo loudspeakers.
Pro Logic + IVA: The Dolby Surround Pro-Logic decoder is active and delivers surround sound from five simulated loudspeakers.
LOGIC7 + IVA: The LOGIC7 decoder is active. It automatically identifies every surround format (Dolby Pro-Logic, Dolby Digital, DD Ex, DTS, DTS ES 7.1) and simulates up to eight virtual loudspeakers.
The FREQ switch lets you select one of three carrier frequencies for interference-free reception. The DISPLAY switch toggles all indicator LEDs between ON and OFF.
Choose Your Style
HEARO 777 QUADRA
Wireless surround headphone system with integrated Dolby Pro-Logic and LOGIC7 decoders. Headphones with soft leatherette ear pads.
HEARO 777 QUADRA DELUXE
Electronically identical to HEARO 777 QUADRA. Transmitter body of luxurious, transparent Lexan. Headphones with interchangeable sets of leatherette and velours ear pads.
HEARO 777 QUADRA & HEARO 777 QUADRA DELUXE SPECIFICATIONS.
Headphones Speakers Audio bandwidth Carrier frequency range Range semi-open, circumaural dynamic 18 to 24,000 Hz 864 MHz or 914 MHz 864 MHz: 330 ft. (100 m) max. / 914 MHz: 150 ft. under ideal transmission conditions (free-field) Max. SPL Battery life Headphones weight Transmitter weight Stereo adapter ~ 125 dB SPL ~ 20 hours (NiMh) ~ 320 g (11.3 oz.) QUADRA: ~ 500 g (17.6 oz.) QUADRA DELUXE: ~ 950 g (33.5 oz.) mini to 1/4 jack, gold plated
Transmitter, headphones w/receiver, 9 V/500 mA AC adapter, 1.5-m (5-ft.) RCA audio cable, 1.5-m (5-ft.) RCA to mini jack audio cable HEARO 777 QUADRA DELUXE only: replacement ear pads of fine velours; transmitter covered with scratch-proof acrylic (Lexan)
Wireless surround headphone system Integrated Dolby Surround Pro-Logic decoder Integrated LOGIC7 decoder (eight-channel technology) AKG IVA processing XXL speakers with patented Varimotion diaphragm (AT 403.751, US 6.185.809) Bridged amplifier for quadrupled power Digital stereo encoder for 24 bit/96 kHz A/D conversion Max. range of 330 ft. (100 m) (864 MHz) or. 150 ft. (914 MHz), through walls and ceilings Several wireless headphones can be used with a single transmitter. Batteries are charged automatically while headphones sit on transmitter. No risk of overcharging. Supplied high-power, AAA size NiMH rechargeable batteries provide up to 20 hours of listening. AKG self-adjusting headband for excellent wearing comfort Soft, skin compatible leatherette ear pads Three selectable carrier frequencies
Microphones Headphones Wireless Microphones Wireless Headphones Headsets Electroacoustical Components
AKG Acoustics GmbH
Lembckgasse 2125, P.O.B. 158, A-1230 Vienna/AUSTRIA, Tel: (+43 1) 86 654-0*, Fax: (+43 1) 86 654-7516, www.akg.com, e-mail: firstname.lastname@example.org
Bodenseestrae 228, D-81243 Mnchen/GERMANY, Tel: (+49 89) 87 16-0, Fax: (+49 89) 87 16-200, www.akg-acoustics.de, e-mail: email@example.com
AKG ACOUSTICS, U.S.
914 Airpark Center Drive, Nashville, TN 37217, U.S.A., Tel: (+1 615) 620-3800, Fax: (+1 615) 620-3875, www.akgusa.com, e-mail: firstname.lastname@example.org For other products and distributors worldwide see our website: www.akg.com
Specifications subject to change without notice.
Printed in Austria.
DOLBY, THE DOUBLE-D AND PRO LOGIC ARE TRADEMARKS OF DOLBY LABORATORIES LICENSING CORPORATION. LOGIC7 AND THE LOGIC7 LOGO ARE REGISTERED TRADEMARKS OF LEXICON, INC., A HARMAN INTERNATIONAL COMPANY.
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