Curtis:

My sense is that the sub's amp would probably drive the sub. But frankly I don't know what happens to the main signal when you route a speaker line output through the sub.

For example, I can easily understand a situation where the sub just senses the low frequency signals contained within the speaker line signal, amplifies and plays those, while passing the entire signal on to the fronts (possibly resulting in a doubling of a portion of the base) and resulting in an extra load on the 1050.

Not being an electrical engineer, I have a harder time understanding what would seem to be the ideal scenario. In this scenario, the sub would strip the low frequency portion of the signal away from the powered signal leaving the sub and just amplify and play the low pass portion of the signal. However, in this scenario, I have no idea of the load the 1050 amp would see. This is why I described it as a potential problem.

Sorry I wasn't clearer from the beginning.

[This message has been edited by 73Bruin (edited June 19, 2003).]