4 amplifiers to drive 1 pair of speakers?


Hi

Sorry I am still quite a young audiophile (less than 1 yr old)
Was wondering if its possible to use 4 amplifiers (eg 300b which is quite low powered) to drive a pair of speakers? 

I.e. pre amp output --> Y splitter into 2 different 300B amplifiers for each channel. Each amplifier can take either the top 2 or bottom 2 binding posts of the speaker.

My speakers are 90db 8ohm (more like 4ohm in real life), and im afraid that 2 300b PP amplifiers ~18W class A is insufficient.

Thanks!
thegreenman

Showing 1 response by erik_squires

Well, you should try it first. :)

But active bi-amping may be a much better way to go.  Use a solid state amp for the low end.  Put a capacitor in series with your top end amps.

THe thing about passive bi-amping is your amp still has to reproduce the full voltage swing (+ or -, corresponding to in/out on the speaker).  You do reduce the current, which stiffens up the amp, but if you can remove the bass from the amp the full power becomes available for the high range.