Subwoofer connection to older tube amp

So if I just go with the doubling of the wires off the same 8 ohm speaker output directly from the amp I'll be fine? That would be easiest and I wouldn't have to go out and buy more connectors.

Also, do I need to run left and right wires or just a single? Right now I'm using an A/V receiver that has the single RCA Sub output and its connected to the left input on the sub. Now I want to switch back to using my Audio Reserch gear. Do I need L&R or just go with one speaker wire off the ARC amp to say the left speaker sub input?

Ok, I called Audio Research and talked with Leonard in the service department. I think he's been there forever and remember speaking with him maybe 15 years ago when I first got this equipment.

Anyway, he basically said to go ahead and hook-up the dual speakerwire set-up. He did confirm that the "Tape Out" on the pre-amp would not provide any volume. Said to double the wire L&R for both the main speakers and the sub.

There is a warning in the Sub manual saying the amp must be common grounded for this connection, but Leonard said that's fine and not an issue. So I'm going with the dual speakerwire config and let you know how it goes.

Well, everything is hooked-up as described above and no probs, sounds great.

Thanks for the input and help.

That's great, congratulations. Now you can take your time adjusting the output, crossover and phase settings to get it to sound best with your system. You'll probably find that what works really well for one recording isn't ideal for another and it takes some going back and forth to find the setup that's the best compromise.