Speaker connection question, please.

Thread Starter

danl

Joined Sep 24, 2013
60
I am using the amplifier board out of an old stereo boombox (JVC, 12V) for a sound system in an R/C ship model. A small MP3 player provides the auxiliary input. I am using only one of the original speakers, hooked up to one channel output.
Can/should I also connect the second channel output to that speaker?
Does using only one channel/speaker cause any issues?
The model has only room for one speaker. Maximum volume is needed.
Thanks.
 

crutschow

Joined Mar 14, 2008
34,280
There is one exception to my advice. If the outputs are not bridge-type (that is, both of the other speaker terminals go to circuit common) then you may be able to use the two outputs in a bridge configuration (one output to each speaker terminal). But that requires the signal to one of the amplifier inputs be which can be done with an inverting op amp circuit.
 
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