Subwoofer match for Harbeth 30.1

I use a REL Strata III with my 30.1's. It is a good match. If you go with a REL forget about the stock neutrik cable and upgrade it.

Bob, I had the B1 with Harbeth HL-3s some years ago. It was great, and I think you would be fine with this sub and speaker combination. That said, unless it is important for you to match wood grain finishes, I would not count out the newer RELs or the JLs, for that matter. I currently have the JL E-112 paired with KEF LS50s, and depending on the music you listen to, the JLs have a nice 'clean' (accurate) bass response that pairs well. I would also recommend the older REL ST series. While I liked the Britannia B1, it did not seem to load the room like the ST series did (I had a storm some years before). But either way, I think you'll be well served by either brand. The RELs are musical, as everyone says. The JLs do put out more low bass, as the measurements suggest. Also, as another data point, I have had 3 RELs and never had any technical problems with them. They are well made and the amplifiers seem to work forever.

Bob, you might try a REL T5. I use this sub with my SF GH's, as the sub can keep pace with these speakers. Perfect blend down to about 35Hz. If you have a small to medium size room, I think the T5 would be a very good match up with the Harbeth 30.1's.

Thanks! Great suggestions all. Keep them coming...

Hi Bob, I've had very good results pairing JL Audio's F110 sub with my Focal Diablo monitors. I started with one F110 and recently added a second and am running them as a stereo pair. They have seamlessly integrated with the Diablos and provide fast, tight, tuneful bass. The addition of the second has smoothed the bass response, widened and deepened the soundstage and overall conveys a more believable sense of realism. I also use a Sound Anchors stand for the sub (I have a second ordered for the new sub) and have found it helpful in decoupling the sub from the floor, resulting in tighter, more articulate bass. I also have found JL's setup instructions to be easy to follow and their built-in Automated Room Optimization functionality to be very effective. Overall, setup and optimization was quite easy. I don't have experience with Harbeth or other subs so can't offer any comparative info. From my experience, I'd say that your addition of a good sub (or two) will prove quite beneficial. Good luck.