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Gainclone Running 2 Speakers; Parallel or Series

Hi all. I have a DIY gainclone purchased years ago from another 'goner. It uses LM3886 chips and has four 8600uF caps for a total of 34,400uF. I am trying to hobble together a system using parts I have on hand. I hooked up the gainclone to a pair of Advent 1 speakers, and felt that they sound bass-boomy and a bit dull. I would like to supplement the Advents with some Gallo Nucleus speakers I have on hand. I believe the Advents are 4 ohms and the Gallos are 8 ohms. Can anyone recommend whether I should wire these in parallel or in series? I can't recall if I've read that gainclones don't like low impedances - if this is the case, I'm guessing in series is better. Can anyone advise? Thanks.
peter_s

Showing 1 response by plato

plato
1,543 posts
 
This sounds like a bad idea. Have you checked that the output level of the speakers will be the same at a given power input from the amp? If not, one speaker pair will play louder than the other.

Also, the overall impedance will be below 4 ohms if you put them in parallel. And if you put them in series you'll have over 12 ohms and the output level will suffer.

You could try it but I wouldn't expect very good results. Are you sure the tweeters are working right in the Advents?
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