Archive for category Subs
Architectural audio specialist TDG Audio has announced that the newest model in its Signature Series of in-wall subwoofers is now shipping.
Designed for stealth home theater installation between wall studs, the new IWS-10 subwoofer features a heavy-duty 10-inch driver in a one-piece, steel-framed MDF baffle with a paintable white metal grille that attaches to the frame magnetically.
The IWS-10’s mounting depth is 3.5 inches with outer frame dimensions of 17.2 x 17.2 inches and cutout dimensions of 14.4 x 14.4 inches. The speaker is rated for 4 ohms with reco
The driver uses a lightweight and rigid aluminium vented cone with a composite fibre dustcap, which is combined with a proprietary injection moulded gasket and long-throw parabolic surround to allow for extreme excursion and incredibly deep bass. There’s a dual ferrite magnet motor assembly weighing over 11kg, along with a flat edge wound split-wind voice coil within the motor assembly. Together, they deliver sufficient power at the highest excursion levels, but reduce mass and improve overall driver efficiency.
The driver’s ability to move massive amounts of air is backed up by a rear-mounted Sledge STA-800D2 amplifier, combining the high current output of discrete MOSFETs with Class D efficiency to deliver a claimed 800W RMS and peaks of up to 2,500W. All this is governed by a 50MHz Analog Devices DSP with 56-bit filtering that SVS claim is the most advanced digital processor ever used in a subwoofer.”
“Now let’s get serious about guilty pleasures when it comes to music — the kind of stuff we’re loathe to admit is on our playlists. I reckon what harm could come of this, so I start playing music that should not benefit from a subwoofer, only to discover that these tracks actually have low-octave content. Hot damn, there are bass lines to be plumbed in and at depth. Not what I expected and I am being forced, in a very good way, to re-listen to a number of recordings all over again.
The Dayton Audio subwoofer is indeed serviceable, with its 120 watts of amplification and downward flared ported design it comes in at the princely sum of $148.00. Is this model the last word in subwoofers? No, it is not. Is this model a great entry point for the novice? Indeed it is, and more. For someone as cynical and skeptical as myself it is not in me to jump in with both feet. So here I am, already searching out the upgrade path. I’ve got SVS squarely in my sites. Gary Yacoubian, SVS President, was so helpful in pointing me in the direction of Ed over there, so it is down to two models of theirs, both sealed box variants: the new SB-4000 or the SB16-Ultra. Either one would take me to a whole new level and, now that I am more at ease with the subwoofer as more than a concept, I am prepared to take that next step. I went with the SB-16 Ultra because size does indeed matter, and if I was going to risk physical injury with a component that size, I reckon I’d go all-in.”
As I’ve mentioned elsewhere on this site in the past, I normally run no less than two subwoofers in my main media room, not for increased output, but rather to fill in some unavoidable dips at around 45Hz (with a sub on one side of my system) and 80Hz (with a sub on the other) caused by the geometry of my listening space. Given that I knew I would only be receiving one Defiance X15 for review, I disabled one of my reference subs beforehand and spent some time listening with only one sub, so as not to create an unfair comparison. In the end, I positioned the X15 on the left side of my system, if only due to the fact that it’s too wide to fit in the subwoofer spot on the right side. It is, after all, nearly three inches wider than my reference SVS PB-4000, which is itself snug as a bug on that side of the room.”
The best placement for a single sub in my room gives me a relatively flat response for an un-EQ’d single subwoofer, with a window of +/- 4 dB from 25 Hz to 100 Hz with no broad dips in important ranges. This location trades low-end room gain for a relatively flat response, a worthwhile trade for my tastes. The receiver used was a Pioneer Elite SC-55 and the crossover was used mostly at 80 Hz. I set the Defiance subwoofers up in a manner where I could easily switch back and forth between them, and also in placements right next to each other to minimize the difference of the acoustic effects of the room between them.
As always, I will note here that since room acoustics have a huge effect on low frequencies, the way these subwoofers sound in my room at my listening position is not necessarily going to be the way they sound anywhere else for anyone else, so readers would do well to keep that in mind, and not just for this subwoofer in this review, but for any subwoofer in any review.”