stereo to mono
That's backwards. I don't have a single input, I have two channels output from an amplifier, an amplifier that has no mono switch and will output only stereo, and also it's an amplifier not otherwise in use anywhere else.
Sorry, I read that backwards. As it stands, without an external circuit to allow for the use of both channels in "bridge" mode, what you seek is not possible. The amp sections were not designed ot be used in bridge mode (which is what you are asking).
Dan
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