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Bridging mono amps

So, here is a strange question: How can I bridge 2 mono amps?

I am trying to optimise the sound from all the equipment I have. I am currently running 2 systems with identical amplification - each has a Musical Fidelity MVT preamp and 4 MA-50 monoblock Class A 50w poweramps, vertically bi-amped. The bedroom system is using Acoustic Energy AE-1s, while the listening room is using Proac Response 3.5.

So, since I have 8 identical MA-50 mono amps, I am wondering if I can bridge pairs of them to increase power to the Proacs.

BTW, does anyone have an MVX or MX preamp stashed away that they'd sell?

Thanks, Samir.
gofast

Showing 2 responses by eldartford

eldartford
4,262 posts
 
Jumper the Lo (black) posts together.
Wire your speaker across the Hi (red) posts.
Drive one amplifier with an inverted signal. (How to do this is your problem).
eldartford
4,262 posts
 
Gofast...Regarding polarity: just do both channels the same. If you worry about "absolute" polarity connect the inphase signal amp to the Red speaker post.

Although you may want to experiment, Plato's comment is worth consideration. One of the benefits of bridging a stereo amp is that the draw on the power supply is more even, because one amp draws positive voltage while the other draws negative. Many amps will deliver more power when the two channels are driven out of phase. With two Mono amps this does not apply.
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