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5

Connections

70V & 25V Speaker Systems

Connect the 25V or 70V speaker loads to the corresponding terminals (25V or 70V) and the common terminal.
Make sure that the total wattage of all the connected speakers is less than 6 watts.

Note:

Do not use both the 25V and 70V terminals at the same time. Use only one type of speaker (25V or 70V) for all

speakers connected to the GA6A.

Link

The shorting link must be in place when using 25V or 70V speakers.

8

Speaker Systems

Low-impedance 8-ohm speakers can be connected to the GA6A.When using multiple speakers, the installer must
make sure that the total speaker load is not less than 8 ohms. Higher impedances than 8 ohms are safe to connect
to the GA6A, but the GA6A will not deliver its full output power to these higher impedance loads.
Connect the 8-ohm speaker load to the GND and 8-ohm terminals and remove the shorting link. 25V and 70V 
outputs will not work in this configuration.

      

Note: If using multiple speakers, check for
proper phasing. See Section on Phasing.

Note: If using multiple speakers, check for
proper phasing. See Section on Phasing.

Summary of Contents for GA6A

Page 1: ... 2004 Bogen Communications Inc All rights reserved Specifications subject to change without notice 54 5757 03B 0406 Utility Amplifier GA6A Model Installation and Use Manual ...

Page 2: ... not use this apparatus near water 6 Clean only with dry cloth 7 DO NOT block any ventilation openings Install in accor dance with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two ...

Page 3: ...phone and an auxiliary audio source tuner tape deck etc can be mixed Individual front panel controls regulate the level of each input Connections for 8 ohm and 25V or 70V speaker lines are provided on the rear panel output terminal strip A 3 position switch is supplied to provide 9 dB boost 9 dB cut at 10 kHz or flat response Package Contents 1 GA6A 1 Installation and Use Manual Accessories WMT1A ...

Page 4: ...ovides for 8 ohm 25V and 70V speaker outputs 2 Shorting Link Used when 25V or 70V speakers are to be connected to the GA6A Must be removed if 8 ohm speakers are to be connected to the GA6A 3 Microphone Terminal Input terminal strip for a balanced low impedance dynamic microphone 4 AC Line Cord 120V AC 60 Hz 0 15A line cord terminated in a three prong plug 5 Treble Control Switch A 3 position switc...

Page 5: ...8Ω Ω Speaker Systems Low impedance 8 ohm speakers can be connected to the GA6A When using multiple speakers the installer must make sure that the total speaker load is not less than 8 ohms Higher impedances than 8 ohms are safe to connect to the GA6A but the GA6A will not deliver its full output power to these higher impedance loads Connect the 8 ohm speaker load to the GND and 8 ohm terminals and...

Page 6: ...s or a red dot Microphone Input Connect a low impedance dynamic microphone these microphones connect using 3 wires and do not require a power source to the microphone terminals as shown Note Condenser microphones will not work with the GA6A because the GA6A does not supply phantom power which is required for these microphones to operate Use two conductor shielded cable for a balanced input and con...

Page 7: ...ease in high frequency above 10 kHz heard at the output The Cut position can help reduce high frequency feedback The Flat position provides no modification to high frequency response The Boost position provides more clairty and intelligibility to speech Overload Protection The amplifier output is protected against overload and shorted speaker lines by a thermostat enclosed in the power transformer...

Page 8: ...n no event shall Bogen be liable for special incidental or consequential damages including but not limited to loss of profits loss of data or loss of use damages arising out of the manufacture sale or supplying of products even if Bogen has been advised of the possibility of such damages or losses Some States do not allow the exclusion or limitation of incidental or consequential damages so the ab...

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