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Quest for maximum impact in a large HT - Danley versus Genelec versus stacked Klipsch

3133 Views 46 Replies 26 Participants Last post by  jimsfield
Well, another "monster sub" thread you might think. And before you ask - I`ve read all the threads about the Genelec and the Danley I could find.


What I'm looking for is something special. Here is my situation: Very large (upcoming) HT room with about 7800 cf. Sealed. Highly efficient JBL Synthesis K2 9800SE and SK2-1000 fronts, 4x KL-650 Klipsch THX Ultra 2 surrounds. In my old HT I used a german 20' Magnat 530 ( http://www.magnat.de/content/homeent...2401&pl=3&s=99 ).


With the Magnat I had plenty of SPL and punch, but it was neither very detailed/"fast" nor was there much usable extension below 25Hz (very steep rolloff).


What do I want - I want to really pressurize my large room. I want maximum impact/punch/SPL BUT combined with extraordinary low frequency extension.


I'm looking at three different options right now -


Genelec HTS6/7073A

Danley DTS-20

A couple of Klipsch THX Ultra2 KW-120 or SVS Ultra/2 stacked or side by side.


I know I can match the max. SPL capabilities of the Genelec and Danley by stacking 2-4 of the Klipsch/SVS. But once max. acoustic output is the same what would be the differences regarding low frequency extension and detailed/"fast" output?


Tuning the SVS to 15Hz will give me something like 12Hz-13Hz of inroom response. Can I match this extension with the Genelec/Danley - probably by trading off some of their max. SPL for extension (by EQ with something like the Velodyne SM1)?


Can anyone in the know describe the general sound characteristic of the Danley DTS-20 - exspecially comparing it to the Genelec. That tapped horn design must have a certain sonic signature compared to front/downfiring and vented/sealed subs. There are no professional reviews available for the Danley and I have no opportunity to listen to such an unit - so I depend on first hand experiences from you guys.


Thank you very much in advance!
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on a side note - Klipsch takes its max. SPL measurements at 1W/1M 1/8 space. How does that translate to 1W/1M 1/4 and half space measurements??? How do you convert 1/8 space to 1/2 space figures (- 12db??)?
Is a multi-driver (15" or 18") IB a possibility? If not, forget the Klipsch and go with either multiple SVS (if you tune low you lose port area, so you want to make it up by getting more boxes) subs or two DTS-20's. I don't think that you can go wrong with either and they will certainly be less $ than the Genelec.

JP
Neither the Danley nor the Genelec are good choices for response below 20 Hz. I'm not familiar with those new Klipsch subs, but older models...sucked for extension and response linearity.


To hit below 20 Hz at high levels in a room like that is going to take some serious subwoofing...four high output/low extension subs (SVS, Hsu, DIY, etc).
Quote:
What do I want - I want to really pressurize my large room. I want maximum impact/punch/SPL BUT combined with extraordinary low frequency extension.
Do you have $100,000 dollars?
In a dedicated, solidly constructed room, multiples of 15" sealed subs will yield a response to the single digits with room gain and something like a LT circuit. Maybe Mark Seaton or Ed Mullen will chime in. They can explain it much better than I can. But, that's where I'd be looking for reference bass.
what a lovely problem to have to deal with !!

Love that k2 up front, that has to be just awesome

Is there nothing else that JBL offers that would be worth including in your list of possible candidates? Seems to me you ought to give JBL tech support a call and see what they recommend to match up with the k2's.

good luck
Man you can't go wrong with a Genelec (or maybe a pair of Danleys for the same cost).


Now you're talking some big bass!
IB installation, plenty of 18" drivers, plenty of power, problem solved.
Quote:
Originally Posted by crackyflipside
IB installation, plenty of 18" drivers, plenty of power, problem solved.
I am sure we all want to go through that pain in the ass with no idea how it will sound (or disturb the rest of the house and /or neighbors)....:rolleyes:


I am sure most would be happy with a Genelec or Danley (or two). I know I would!
Quote:
Originally Posted by rynberg
Neither the Danley nor the Genelec are good choices for response below 20 Hz. I'm not familiar with those new Klipsch subs, but older models...sucked for extension and response linearity.


To hit below 20 Hz at high levels in a room like that is going to take some serious subwoofing...four high output/low extension subs (SVS, Hsu, DIY, etc).
My SVS subs go flat to 15 Hz with earth shattering SPL at the 20Hz tune.My understanding is you may want to hang on just a few more weeks for Seaton's twin 15" driver sealed sub. You might need four of them but flat to 10Hz with enough SPL for your needs.


Art
Quote:
Originally Posted by Art Sonneborn
My SVS subs go flat to 15 Hz with earth shattering SPL at the 20Hz tune.My understanding is you may want to hang on just a few more weeks for Seaton's twin 15" driver sealed sub. You might need four of them but flat to 10Hz with enough SPL for your needs.


Art
How large is your HT (cubits wise) and did you start out with fewer than 4 subs and just kept adding?
Isn't a cubit a an ancient linear measurement ?( the Arc was measured in cubits)


My room is about 5500 cu ft.


Art
A cubit is the distance from the thumb to the elbow of an average man. I used it to save a few key strokes, but you got my meaning. I assume you know the Arc was measured in cubits because you used to have Bill Cosby albums.
Quote:
Originally Posted by ransac
I assume you know the Arc was measured in cubits because you used to have Bill Cosby albums.
You are good ! :D


Art
I would definitely wait for more information on Mark Seaton's upcoming subs before making any decisions. What he has shared so far sounds impressive.
Quote:
Originally Posted by Art Sonneborn
My SVS subs go flat to 15 Hz with earth shattering SPL at the 20Hz tune.My understanding is you may want to hang on just a few more weeks for Seaton's twin 15" driver sealed sub. You might need four of them but flat to 10Hz with enough SPL for your needs.


Art
I've heard Mark's sub in a small room, and I found it impressive (and I had just come from a Contra demo). I can't imagine what 4 of them would sound like! Insane!


It will be very interesting to hear what people like you and Jeff think of it. I'm looking forward to AV123's/Seaton BMF sub.. I just can't wrap my heard around that sub's design.



Anyway, OP, yeah the market is about to get all shook up over the next few months, so you may want to wait until the fall if you're going to be dropping that kind of cash.
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Quote:
Originally Posted by Art Sonneborn
My SVS subs go flat to 15 Hz with earth shattering SPL at the 20Hz tune.My understanding is you may want to hang on just a few more weeks for Seaton's twin 15" driver sealed sub. You might need four of them but flat to 10Hz with enough SPL for your needs.


Art
Where can I find all the available information about this new twin 15" sub? Any target specs yet? Where are they going to be sold? Thanks guys.
Quote:
Originally Posted by rynberg
Neither the Danley nor the Genelec are good choices for response below 20 Hz. I'm not familiar with those new Klipsch subs, but older models...sucked for extension and response linearity.
He wasn't asking about the "new" Klipsch subs, nor the "old" Klipsch subs. He was asking about the Klipsch THX Ultra2 subs...
Quote:
A couple of Klipsch THX Ultra2 KW-120 or SVS Ultra/2 stacked or side by side.
The Klipsch THX Ultra2 are completely different "beasts" than any other Klipsch sub. I haven't heard either the Danley or Genelec subs. I have heard a pair of the Klipsch THX Ultra2 subs and that system is tremendous.


Craig
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