Preamp or Crossover for Subwoofer??

Sure, just send the amp the sub-out signal from the preamp. The signal will already be filtered. The Adcom will simply amplify whatever is sent to it.

I did the same thing with my h/k 870 amp and my dual Advent subs - worked perfectly.

Doc

Doc, I see two things here.

1. COOL use of 'what you have'.

B. What a WASTE of those vintage Kloss speakers.

Now, to make conversation, did you modify the Advents at all, or just let that sealed box do what it does it best?

Cheers,
Rooster

Russ:

I wouldn't dream of molesting the Advents, nor was it needed in this application since the signal was filtered at the receiver, only bass was sent their way.

They did a damn good job between the dual 350s and my SVS. Although I must admit to bottoming them a few times for HT DVD playback, I was frankly amazed at how much bass power they generated with the h/k amp.

Tour/Russ, I have owned these Advents for about 15 years and they have been re-woofed and are working mint. They hold a prominent place in the upstairs rig and are used daily for TV, casual music, and VCR for the kids. They are being driven by a Sherwood 105WPC stereo receiver and sound as good as ever.

As far as "sealed box do what is does best", nothing beats acoustic suspension bass for pure sound quality. The Advents are flat to 31 Hz and -3 dB at 29 Hz and goodbye Charlie after that. So they aren't bottom feeders, but they dig low enough for almost all music and sound fabulous doing it.

Doc