[swanny]

On 7/08/2011 4:19 AM, Todd Carney wrote:
Folks,

I've Googled until I was blue in the face about this problem, and a
few times came close, but no cigar!

My problem:

1. I have an Aiwa receiver that came with two-way speakers and has
only two-way speaker connections--"low" and "high."
2. There are no one-way connections at all.
3. BUT, I want to have a couple of sets of remote speakers that I'd
switch to on demand.
4. I know how to do the switching, so I covered there.
5. I already have those speakers, and they are all one-way.
6. SO, my problem is how to recombine the "high" and "low" speaker
outputs and then switch them to the remotes.

7. I DON'T know how to safely combine the receiver speaker output.

A few details:

1. According to its manual, each frequency range has its own
amplifier.
2. I have no idea how isolated (or not) the amps are. I don't know if
they share a common return or not.
3. The unit has speaker outputs for "surround" sound. They are one-
way. I will not be using these.

Here's the solution I've come up with using my woefully-inadequate
savvy. Please see my sketch drawing here (Google Docs with shortened
URL): http://bit.ly/mRxzgB.

What do you all think? Will this work? Is it safe for the amps?

Many thanks! ---Todd

https://docs.google.com/document/d/1.../edit?hl=en_US





Sounds like the receiver has an active crossover. Do you still need this
functionality? Are you still using the speakers that came with it?
One solution is to modify the circuit to remove the filters from the LF
amp and make it full range. Then connect your passive crossover speakers
to this.