A silly question, but I'm going to ask anyway :-/ - diyAudio
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Old 22nd August 2008, 05:15 AM   #1
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Default A silly question, but I'm going to ask anyway :-/

Alright, I know this is a can of worms but I'm having trouble working through decisions on my own. So, the question is:

What's the BEST 7" woofer available for use in a 2-way monitor, period?

Obviously there are a lot of considerations to that question. To help narrow it down, the tweeter it'll be paired with is a RAAL 70-20XR crossed at 1800hz.

My thought process, can a 2-way monitor with an Accuton 7" produce decent bass? Can a Seas W18EX be implemented without any harshness at a 1800hz xover, and will it have the bass drive for a 2-way monitor? Does the 18W Revelator's bass drive off-set it's slight bit of coloration through the vocals enough to give it the title of 'best'.

There are 3 drivers on the horizon that really interest me, the Scan Illuminators, the new Eton Symphony, and the Morel Elite with the new sandwich cone and copper sleve motor ... but alas, none of them are available at this time.

So please excuse the question itself, and enlighten me on what your thought process would be on choosing a woofer to pair with the RAAL for a full range stand mount design.
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Old 22nd August 2008, 05:23 AM   #2
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I say try the Accuton. And post the response on big baffle f you do. The factory response always looks so freakishly good on those ceramic cones it makes me curious.
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Old 22nd August 2008, 05:35 AM   #3
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Quote:
Originally posted by augerpro
I say try the Accuton. And post the response on big baffle f you do. The factory response always looks so freakishly good on those ceramic cones it makes me curious.
Ha, sounds like you just want me to get it so I can post test results

Seriously, I probably would go with the Accuton if I KNEW it could give solid bass. But I've heard a lot of Accuton based stuff, and none that I've heard have had any bass weight at all. Last year at the RMAF, Audio Federation was right down the hall from me with their $150K Marten Coltrane Supreme, and even it didn't have any balls.

Is it too much to ask for balls AND accuracy?
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Old 22nd August 2008, 05:39 AM   #4
CLS is offline CLS  Taiwan
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Quote:
Originally posted by TurboFC3S

....
Is it too much to ask for balls AND accuracy?
For a 7"er, yes.
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Old 22nd August 2008, 05:48 AM   #5
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Quote:
Originally posted by CLS


For a 7"er, yes.
From my experience I think the Scan 18W Rev might be the closest, it's just a touch colored in upper midrange.

My biggest put-off to the Accutons is Linkwitz' tests of the C92-6 ... it performed rather poorly in his testing.
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Old 22nd August 2008, 11:40 AM   #6
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Hi,

what about C-queenze?
Imho aren't 1800Hz a bit too low for the Raal?

cheers,
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Old 22nd August 2008, 12:36 PM   #7
sreten is offline sreten  United Kingdom
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Hi,

The Raal allegedly does 4th order L/R at 1.8kHz with one capacitor.

http://www.zaphaudio.com/6.5test/

/sreten.
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Old 22nd August 2008, 01:38 PM   #8
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Hi,,
You are right, but I am a bit skeptical about this manufacture's claime.
Curious to see some distortions graph.

cheers,
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Old 22nd August 2008, 02:20 PM   #9
sreten is offline sreten  United Kingdom
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Quote:
Originally posted by inertial
Hi,,
You are right, but I am a bit skeptical about this manufacture's claime.
Curious to see some distortions graph.

cheers,
Hi,

Oh yes, frequency response is one thing, distortion quite another.

Quite how they get an intrinsic 18dB/octave roll-off would
also be interesting, presumably its 12db/octave mechanical
plus some first order roll-off from the transformer, or does
it have a built in capacitor somewhere ?

/sreten.
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Old 22nd August 2008, 02:31 PM   #10
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HI,

Interesting question. Probabily you are right again about transformer but I have not solid know how - info about this tweeter.
Anyway I think TurboFC3S have an interesting challenge with this
extreme project.

cheers,
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