JL Audio Fathom 12" Sub - Page 9

Originally Posted by otk

did someone mention once that they thought the f112 was a bit more "musical" than the f113 ?

Originally Posted by craig john

F112
21 - 119 Hz (±1.5dB)
-3 dB at 19 Hz / 150 Hz
-10 dB at 17 Hz / 167 Hz

F113
20 - 86 Hz (±1.5dB)
-3 dB at 18 Hz / 127 Hz
-10 dB at 16 Hz / 154 Hz

The F112 is flatter to higher frequencies than the F113. Whether that makes it more "musical", I don't know, but it should blend better with speakers that have higher -3 dB points, (which, I know, is not your situation.)

I know that my dual F112's are *very* musical blended with my Atlantic Technology 8200e's, (-3 dB @ 60 Hz.) I have been listening to a lot of DVD-A/SACD and the bass lines never sounded so good! No tubbiness, boominess or overhang, just clean tight bass with every note distinct and clear. (I am using Audyssey MultEQ XT with them and the ARO is disabled, if that matters.)

Craig

Originally Posted by xcjago

Man, that is such a sweet setup!! What I would like to know, if you get the chance, is how much of a difference do you hear between the F112 pair vs the F113 pair.

Originally Posted by jakeman

With that much headroom, one other configuration worth trying consists of stereo front subs with an LFE mono pair. Whether or not it improves sound quality depends on room acoustics and your ability to blend the stereo pair with the mains and mono subs. Its a more challenging and time consuming proposition than quad monos since you have to struggle with more phase issues but the FL subs have plenty of controls to tame that beast.

The usual argument about this setup is you can lose the main advantage of quads, smooth FR across all seats. However that doesn't need to be the case if you are successful with placement and integration. The reward is a more holigraphic front soundstage with music and more realistic panning effects in movies. I've found the usual remark about how bass below 80hz is omnidirectional fails to encompass our survival ability to sense the direction of change in sound pressure. That's why stereo subs sound so much better than dual monos if properly setup.

Originally Posted by jakeman

Hey congrats Rob and welcome to quad land. Nice choice with the JL112s but I had you pegged for another pair of JL113s.

I've been running dual 113s with dual Velo 18s for a while now and you can't beat the extra dynamics and headroom that the additional sub pair brings to the party.

Looking forward to your pics and impressions. Are you going to try and set up the JL112s in stereo or go with quad monos?

Originally Posted by mpedris

John,

In terms of articulation and precision, how does the 113 compare with DD-18?

Originally Posted by jakeman

That's an open ended question that has evoked at least half a dozen long threads. One of the earliest and best comparisons was the one that RMK and Ransac did, in December 2006 as I recall, which was followed by many similar discussions throughout early 2007. I would suggest reading several of those threads. The comparison usually involved a long discussion about music vs. HT, output, linearity, distortion, ARO, built in SMS, servo control, size, WAF etc.

Anyway, after listening to both for over a year, I'd still say they compare so closely to one another in terms of articulation and precision at normal listening levels that I have no clear favourite. Looking at graphs many would tempted to give the edge to the FL113 for HT applications because of its significantly greater output in the infrasonic. However that output comes with far higher distortion below 25hz compared to the servo controlled DD-18. Similarly its been suggested that the incredibly low THD of the DD-18 gives it an edge in precision, however the difference in THD which is mainly second order is not audible. Once the rooms transfer function is factored in, and equalized for using the ARO or built in SMS, it again becomes a toss-up except in intense movie scenes. But then again those scenes are not about articulation or precision.

Bottom line for me is they are both excellent highly articulate subs and too close to call. Because the compliment each other well either one would be a terrific addition to anyone owning the other.

Originally Posted by mpedris

Thanks for the feedback, John, RMK.

If the 113 is comparable to DD-18, which DD would the 112 be comparable to?
How might the 112 stack up against the Velo SPL series? Again, which one?

Thanks.

Originally Posted by John Scaro

The "Twins" are on the way!!! Feels like Christmas

Originally Posted by John Scaro

The "Twins" are on the way!!! Feels like Christmas

Originally Posted by RMK!

I haven't heard the other DD subs but I can say that in by brief expierence with them, the F112 and F113 are very close performance wise. If I were to venture a guess, I'd say the DD15 would be comparable to the F112.

My first sub was a Velo SPL 1200 and although it was a nice little sub, it's not in the Velo DD nor Fathoms class.