One or two?

[Coppy]

Hey Mike,

I ended up with one JL Audio f113 sub. Actually didn't have room for two. It's a powerful, sizable and heavy sub with a built in digital room adjustment program. Excellent product... and at the right price. It was a very lightly used demo unit from a high volume Wilson dealer who didn't sell many to go with the big Wilson speakers. It has really enhanced the overall sound of my system in this large room and has disappeared in the process. After studying all the set up papers on the JLA help site I made the non intuitive decision to move the sub away from the main speakers to a point one third of the way down the righthand wall toward the listening position. it is now about seven feet closer to my listening chair than the mains. After the move the sub's output now integrates perfectly with the mains. The low end sounds like it's coming from the speaker end of the room and in perfect sync. Truly amazing. Check out the supplemental set up papers on the JLA help website.

Bob

[Mike-48]

Hey Bob,

Thanks for the details. Interestingly enough, I also have moved the subs about 1/3 of the way along the side walls and wound up with smoother bass response. I tried four or five positions, and that was the best I could find. (I use an OmniMic2 to measure response at the listening seat.)

I agree that the JL subs integrate exceptionally well. Crossing over at 80 Hz from a pair of Janszen zA2.1 mains, there is no sensation whatsoever of separate drivers or separate locations in the bass. These are great subs -- and when one developed minor problems, I got superb service from JL as well.

[Mercury3]

Originally Posted by Mike-48

Hey Bob,

Thanks for the details. Interestingly enough, I also have moved the subs about 1/3 of the way along the side walls and wound up with smoother bass response. I tried four or five positions, and that was the best I could find. (I use an OmniMic2 to measure response at the listening seat.)

I agree that the JL subs integrate exceptionally well. Crossing over at 80 Hz from a pair of Janszen zA2.1 mains, there is no sensation whatsoever of separate drivers or separate locations in the bass. These are great subs -- and when one developed minor problems, I got superb service from JL as well.

With subwoofers ya get a lot of room nodes and I kind of do the same thing also using an Omnimic 2. I take average readings from three different listening positions but take two readings at my primary listing seat and average them all with the omnimic software. Kind of compromise a little bit for when I have others over besides myself.

I put four very large bass traps in my room which did help a little bit with the standing nodes.

Incidently I also use JL Audio subs but built mine myself. They came out pretty darn nice. Very very powerful bass response when called for.

[Mike-48]

Hey Bob,

Bass traps -- they do help. I've got large ones (from ASC and GIK) in all four corners. They help reverb time more than frequency response, and the result is audible and beneficial. Less boom, more clarity, slightly smoother response.

Good job, building your own subs! I don't have much of a handy side, though I did once construct a passive sub with Madisound drivers and cabinet. It came out quite well.

Mike

[Gravity1]

Wondering who might be using the PV1D. Seems many are using them in paid and curious if two really make a difference worth twice the price. Ideally someone who started with one and added another or just tested them one at a time.

thx!