I have a front left channel out on my Onkyo 805. I've asked for some advice on replacing, but I did wonder if this would be a possibility to get me by until I am prepared for a long term fix. I have a Yamaha 80W x 2 channel amplifier. I know people use these receivers as pre-outs (I've never done that before). Would it be possible to just use the Yamaha 80 watt amp to run my two main front channels, and let the receiver power the others? Bearing in mind, my receiver is rated at 135W per channel and is probably more powerful.