Axiom Home Page Forums General Discussion Technical Questions Pre-amp Out to Sub: Receiver Adjustments

J.B.... I guess I got a bad impression of high-level sub setups because no on seems to be using them for the most part, if given a choice, and I recall one guy writing about being content with his speaker-level setup for 2 years until one day he removed his speakers from the sub and attached them directly to the main amp and was blown away by the improved performance. I thought, dang, those speakers weren't getting the proper wattage passed along for 2 whole years... what a sunk cost in time!

Thanks for all your words of advice Ken, JohnK, ClubNeon and JB... it's been quite informative. I went and ordered the EP400 in the end. Thanks again!

I'm just waiting to get a new pre/pro to use high level connectors instead of spkr connectors.
in the meantime, my sound is crystal clear, as long as the Dolby Surround Processor is off; when it's on, the surround effect is only acceptable and sometimes there is distortion too.

i would be surprised if some of the wattage gets lost; if it were so, then voltage measurements at the speaker inputs both before and after installing the sub would be different; yet, i get the same voltage, which means the same Wattage.
Also, a wattage "leak" somewhere in the sub would probably heat up the insides of a sub and maybe damage the sub's amp.

do you agree?

J.B., of course that's true, since as was pointed out above, the receiver connection to the mains runs straight through the sub to the mains, essentially the same electrically as if the wires ran directly from the receiver terminals to the main speaker terminals. There's no mechanism by which any power could be "lost".

There's in effect an internal "Y" inside the sub with one branch going into the sub amp and the other going straight to the high-level outputs. The input impedance of the sub amp is on the order of tens of thousands of ohms and practically zero power can get through that.

*hissss*

AAAAAAH!

<drops flashlight>
<runs away>