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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 2 responses by atmasphere

atmasphere's avatar
atmasphere
12,088 posts
 
Was reading up on it. How about what if I do not monostrap? Monostrap kind of puts the amplifiers in series if Im not wrong? So if I place the amplifiers at parrallel will they actually sound more musical/less harsh and heavy handed?
I think you'll find that by monostrapping you'll be able to drive the speakers far more easily! The only tricky bit it you need two identical stereo amps to pull it off.


BTW instructions on how to do this are in the Dynaco ST70 manual. I used to run monostrapped ST70s when I was in college.


BTW you **can't** use this technique with solid state amps- you'll blow them up!! It is possible to monostrap them too, but the technique is entirely different.
atmasphere's avatar
atmasphere
12,088 posts
 
You can monostrap stereo tube amplifiers if you are careful. But generally speaking they don't sound as good- less delicate, more heavy-handed.


So a Y adapter is used at the input and the outputs are wired in parallel. However, the 16 ohm tap becomes the 8 ohm output and the 8 ohm tap becomes the 4 ohm output.

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