AudioControl Savoy G4, Pantages G4, and Avalon G4 amplifiers have the capability to bridge amplifier channels together to deliver more power to your speakers.
Bridging amplifier channels combines a stereo pair of channels into a single mono output channel. Bridging output channels supplies more power to large power hungry full range speakers in a two channel audio system, home theater, or to power larger passive in room/in wall subwoofers.
The following channels are capable of being bridged on the AudioControl G4 series amplifiers:
Savoy G4 – channels 1-2 & 6-7
Pantages G4 – channels 1-2 & 4-5
Avalon G4 – channels 1-2 & 3-4
IMPORTANT NOTE: When bridging the G4 series amplifiers, do not use a speaker rated at less than 8 ohms. When bridging amplifier channels each channel of the bridged pair “sees” one half of the speaker load. This means that a bridged amp driving an 8 ohm speaker is actually operating into a 4 ohm load. Also, make sure your speakers are rated to handle the increased power that is provided by bridging.
Power output specifications for all G4 series amplifiers are the same:
230 watts per channel @ 8 ohms – stereo
300 watts per channel @ 4 ohms – stereo
600 watts @ 8 ohms – bridged
Using channels 1 – 2 of a Pantages G4 amp as an example, to bridge amplifier channels connect the positive (+) lead of your speaker cable to the positive (+) binding post of channel 1 and connect the negative (-) lead of your speaker cable to the negative (-) binding post of channel 2. There are markings between the binding posts indicating which connections to use when bridging.