Which REL subs for ProAc One SCs?

I had these speakers in an open living room/dining room/hallway like yours, and the REL Storm III I had worked superbly. Like REL recommends, I had the crossover way down and I never had the gain up past 12 o'clock. This setup worked perfectly for me. I am not sure what the current day equivalent to the Storm III is, but someone is selling a used Strata III (smaller sub but still probably would work in your room) for cheap on this site. Also you can get a T-5 or T-7 from Music Direct or Audio Advisor, both for under $1000. I would definitely investigate those. And no, you will not need two. I am speaking about 2-channel audio listening, not home theater and LFE.

As SC53 noted, a well implemented subwoofer usually does not need to be set at high gain and/or high crossover frequency. This is particularly true when music, and not home theater special effects, is a priority.

Multiple subwoofers are used to get a more even bass response, it is NOT generally utilized to get more bass. This issue was discussed extensively in this forum a few days ago; see:

http://forum.audiogon.com/cgi-bin/fr.pl?bhome&1398310409&openfrom&1&4#1

You don't "need" two, but the results are usually better with two or more.

Thanks much for the replies guys. I'm so glad to hear that I may be able to still use the One SCs. I love their tonality and imaging. I'll start looking for a REL sub.

With your setups, you did not pass the lows to the monitors, just the subs? I can see this would put much less demand on the ProAcs.

I only listen to 2 channel music, jazz.

Jim

The REL "high level" connection via the Neutrik Speakon cable connects directly to the speaker terminals of your power amp for the most balanced implementation possible of the subwoofer. The Neutrik cable has three strands, yellow, red and black; the yellow and red connect to the positive terminals of your amp, the black is a ground that connects to a negative terminal. That's all you have to do before you start listening and tuning the dials on the REL. By all means plan to use this connection, not the "low level" RCA-type connections to the REL. It will come with a detailed manual explaining all this.