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