It's easy! The simplest way is to buy a quality HT receiver for processing, switching of HT inputs and powering the surrounds, center and sub.
As Dave said, simply run the L&R front pre-outs from your future HT receiver/processor into any unused inputs on your current pre-amp. Then do the same for your new 3 channel amp and the remaining speakers (5.1, 6.1, 7.1). If you use an HT reciever, simply power the surrounds and center off of the corresponding speaker outputs on the HT receiver.
When listening to 2-channel music, the HT add-on is not even in the circuit and can be turned off. For HT, select the corresponding input on the pre-amp, set the volume on the pre-amp to a pre-designated level (like 12 o'clock or top dead center) and turn on the HT receiver. Your HT sources will connect to the receiver, but your existing L&R front speakers will be powered by your existing 2-channel setup.
It's really quite simple and works well. I've used this setup before with no problems. Its a good way to have excellent 2-channel music and decent HT too.
Enjoy,
TIC
As Dave said, simply run the L&R front pre-outs from your future HT receiver/processor into any unused inputs on your current pre-amp. Then do the same for your new 3 channel amp and the remaining speakers (5.1, 6.1, 7.1). If you use an HT reciever, simply power the surrounds and center off of the corresponding speaker outputs on the HT receiver.
When listening to 2-channel music, the HT add-on is not even in the circuit and can be turned off. For HT, select the corresponding input on the pre-amp, set the volume on the pre-amp to a pre-designated level (like 12 o'clock or top dead center) and turn on the HT receiver. Your HT sources will connect to the receiver, but your existing L&R front speakers will be powered by your existing 2-channel setup.
It's really quite simple and works well. I've used this setup before with no problems. Its a good way to have excellent 2-channel music and decent HT too.
Enjoy,
TIC