How to bridge amplifier channels on G4 series home theater amplifiers.
Amplifiers from AudioControl, such as the Savoy G4, Pantages G4, and Avalon G4, have the capacity of connecting multiple amplifier channels together in order to send additional power to your speakers.
It is possible to bridge amplifier channels, which means that you can merge two stereo input channels into a single mono output channel.
In a two-channel audio system or home theater, bridging output channels provides more power to huge full-range speakers that consume a lot of power, as well as more power to larger passive in-room or in-wall subwoofers.
On the AudioControl G4 series amplifiers, the following channels are capable of being bridged:
Channels on the Savoy G4
1-2 and 6-7 are two of the most common.
Channels 1-2 and 4-5 on Pantages G4 are available.
Avalon G4 – channels 1-2, 3-4, and 5-6.
When connecting the G4 series amplifiers together, do not use a speaker with an impedance of less than 8 ohm.
Once amplifier channels have been bridged, each channel of the bridged pair “sees” one-half of the total amount of speaker load.
A bridged amplifier driving an 8-ohm speaker is actually running into a 4-ohm load, as shown in the diagram.
Additionally, ensure that your speakers are rated to withstand the higher power that is delivered by linking the two networks together.
All G4 series amplifiers have the identical power output specs, which are as follows:
The power output is 230 watts per channel at 8 ohms in stereo, 300 watts per channel at 4 ohms in stereo, and 600 Watts at 8 ohms in bridged mode.
To bridge amplifier channels, for example, on a Pantages G4 amplifier, connect the positive (+) lead of your speaker cable to the positive (+) binding post of channel 1 and the negative (-) lead of your speaker cable to the negative (-) binding post of channel 2, as shown in the diagram.
When bridging, there are indications between the binding posts that indicate which connections should be utilized.
Press the Stereo/Mono button after connecting your speaker cables for bridging to turn the channel inputs into a mono mix.
When operating in mono mode, only one balanced or unbalanced input is required.
In the case of bridging channels 1-2, just the channel 1 input is used in the example.
This four channel amplifier can be bridged down to a two channel amplifier that delivers 600 watts per channel @ 8 ohms, and it also has high pass and low pass crossovers (that can be disabled) that allow you to set up a 2.1 channel system in which channels 1-2 are powering stereo speakers and channels 3-4 are bridged to a single mono channel that is used to power a passive subwoofer speaker.
For further information on the G4 amplifiers, please see the individual product pages on the AudioControl website, which may be accessed by clicking here.
In the event that you require further assistance, please contact us.
Support is available from 8 a.m. to 5 p.m. pacific standard time Monday through Friday.