If you have it, try it and decide for yourself.
6 responses Add your response
Well, only IF the manufacturer mentions the amp can be bridged. Then it MUST be done the way the manufacturer says to do it.
Generally bridged amps are poorer than the unbridged amp.
The impedance is part of it.
Most folks who want to bridge want more power.
Some want (like the op) to just be able to use it for a center channel.
If it was me, i would just connect up one side of the amp, and let the other side sit powered up, but unused.
Bridging or differential mode got a back wrap way back when SS amps were in their infancy. If properly implemented in my experience it is a vastly superior way to operate an amplifier. All my amplifiers are designed so that they can be operated as either a Stereo amplifier or a Mono block. There are many advantages other than approximately four times more power gained like better S/N ratio as well as twice the speed.
So if your amplifier is set up to allow for this I strongly recommend it
As always good listening
Depends on the amps and the load. I have bridged Plinius amps going into 4 ohms but the speakers are magnetic planar and not reactive. They also crossed over above 100 Hz. Those amps also worked well with dynamic speakers I built but those had an unusual (series-parallel) rising impedance below 500 Hz. Most mid-woofers have a minimum impedance around 200 Hz. Some worse than others and compounded in parallel.
Been shopping for a pro amp for a subwoofer project. The subs are 4 ohms (nominal) each and I want to be able to use one or both. Most pro amps can be bridged but they have to be rated for 2 ohms stereo to be bridged into 4 ohms and that eliminates most but the "heavyweights".
I just had 3 Acoustat TNT200s rebuilt by Roy Esposito with added mono capability. Roy was part of the team that designed the amp so as Peter stated, implementation is key. These amps are excellent in stereo but better in bridged mono mode. Stable down to 4 ohms bridged. However, they were designed for low impedance loads in the first place so I would think likely candidates would be of similar capability.