"BEST" Woofer 50Hz - 300Hz & Hi eff, maybe 15" ?? - diyAudio
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Old 7th January 2010, 08:00 PM   #1
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Default "BEST" Woofer 50Hz - 300Hz & Hi eff, maybe 15" ??

Opinions please:

Regardless of box size, flatness of response counts, tonal quality counts, high sensitivity counts.

The goal is to be VERY FLAT and 99db/1w/1m - but I'll take tone, fidelity and flat response with a lower sensitivity and use a more powerful amp, assuming the driver takes power...

Looking to fill between a sub system that actually covers from 65Hz down up to a horn that actually covers from 250Hz up - so the required passband is ~65Hz to ~300Hz. Don't worry about the xovers needed or the cabinet size or type! I'll handle that part. Mention it though.

I'm interested in absolutely wonderful upper bass reproduction.
Obviously a 15" is a likely candidate, although the old TAD 1201 was not a 15" it has some extraordinary characteristics (not sure if it covered low enough...).

There are a ton of Eminence drivers, but who's got the ability to audition them all , or even find response curves??

Oh yeah, out of band peaks are a sure no go... no notch filters thanks.

I guess the idea is "fidelity" in that range - naturalness and not much stuff that going to be bothersome.

Keep in mind that the horns that they are mated with are pretty darn fantastic in all regards and extremely good. So, getting the upper bass right is critical.

I'm kinda interested in "the best thing I ever heard" - not just the usual suspects. Something that is so good that you wanted to own one, or go out and build one and you've heard a lot of really great systems, but this was just better.

I'll even consider an array of smaller drivers... equal opportunity driver user!

Opinions and input appreciated.
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Old 7th January 2010, 08:10 PM   #2
lvw is offline lvw  Canada
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AE Speakers --- Superb Quality, Unforgettable Performance, Definitely.

The best 15" I've heard is the Lambda TD15M. No, I've not really heard many 15" drivers, but it's very good, distinctly better than the older Eminence 15" drivers I've also heard. Certainly worth your consideration... (The version I own is the original, made by Nick at Lambda. Don't know how well the linked versions match those, but they certainly look credible, and worth investigation...)

Larry Van Wormer
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Old 7th January 2010, 08:24 PM   #3
ra7 is offline ra7  United States
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Eminence alpha and beta are both supposed to be good, although they have different Qs.

NP and MJK here have used these drivers and like'em. They should fit the bill perfectly.
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Old 7th January 2010, 08:27 PM   #4
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JBL2226?
Here is the datasheet
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Old 7th January 2010, 08:53 PM   #5
ScottG is offline ScottG  United States
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400 EXC SUPRAVOX

Low mass, compliant suspension, adjustable motor strength for the particular enclosure, good eff., low fs., nothing that needs a notch filter.

Not cheap, and non-linear distortion won't be good (though fs is still quite away from your lower cut-off, and your higher freq. cut-off is well away from inductance issues).

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Last edited by ScottG; 7th January 2010 at 08:57 PM.
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Old 7th January 2010, 08:56 PM   #6
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Based purely on guess based on what people have said, the 15" AE (Llambda) Apollo ... don't know if that is the one mentioned above. The Supervox is also considered very good, but because of the price less has been said of it.

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Old 7th January 2010, 08:59 PM   #7
Xoc1 is offline Xoc1  United Kingdom
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The Fane 15" XB is reputed to have a smooth and musical tone when compared to other drivers with a more robust cones and higher BL numbers (that are more suited to horn loading.)
Build quality is good, Efficiency is 99db/W, They easily handle their 600w RMS -800w AES rating.
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Old 7th January 2010, 11:23 PM   #8
DaveCan is offline DaveCan  Canada
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Maybe a good candidate, not sure on price?

http://www.greatplainsaudio.com/downloads/416_8C.pdf
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Old 8th January 2010, 12:09 AM   #9
tinitus is offline tinitus  Europe
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This 18" looks strong in the midbass
FaitalPRO - Neodymium Professional Drivers
And this new B&C 10" looks interestings, but you would need two
B&C SPEAKERS
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Old 8th January 2010, 12:18 AM   #10
JoshK is offline JoshK  Canada
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I'd think for the range you are after, the Lambda (AE) TD15X would be better than the TD15M. The prior is a midbass, the later a midrange. TD15X doesn't have surround resonance until 500hz and it can do 50hz more readily than the TD15M without having to go to lengths with reflex loading and keeping the port velocity down. But it doesn't have 99db sensitivity, its more like 95db/w. The TD15M is ~98db/w iirc, but it has less xmax. I'd think its range is more suited for 80-1khz. Lower would work, but with less power and having to go ported.

Brandon (don't remember his moniker on here) has a driver vault website that measures quite a number of top hi-eff drivers, including the aforementioned. The Lambdas hold their own.
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