[sdiy] setting up monitoring-one stereo out to one speaker MONO

[Roy J. Tellason]

On Wednesday 27 August 2008 09:29, Dan Snazelle wrote:
> sorry if this is OT but ir does apply to my synth diy shop.
>
> Ok. I have a great stereo in the kitchen but its too big to bring in my
> shop. I need to be able to hear reference CD's, test mixes, tones, etc.
> What i would like to do is wire up a box or an adapter that will allow me
> to feed both speaker outs (+/- LEFT and +/- RIGHT) into a box that allows
> me to send one pair of speakers into the original room (kitchen) and then
> take a MONO feed (so if i am listening to stereo recordings, i hear ALL the
> information)into one speaker in my SHOP. by the way it is an OLD akai
> stereo receiver. (akai aa-r41) it used to have two sets of speaker outs but
> channel B is fried.

Are you sure that there are actually separate amplifiers?  Or is that a 
speaker A/B switch like the one on my stereo,  maybe?

> i dont know if this is possible. If having 2 channels (kitchen and SHOP)
> feed off of one amp is going to mess up the amp due to impedance issues,
> than maybe instead i could just A or B between the two instead of them
> always both playing.
>
> beyond that the major hurdle is just figuring out how to convert the  4
> wires coming into the box into 2 wires (mono +/-) that connect to the 8 ohm
> SHOP speaker.
>
> does this sound possible? easy?

I wouldn't recommend trying to tie the two outputs together.  Easiest is to 
find yourself some sort of a small amp to drive what you want to with it and 
then sum the two signals at the input of that amplifier,  with resistors or 
whatever...

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