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Multi-Way Conventional loudspeakers with crossovers

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Old 30th August 2007, 03:44 PM   #11
SunRa is offline SunRa  Romania
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This I find to be a great sistem, with room to improve maybe. I'd go with open bafle LF units too..
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Old 30th August 2007, 03:45 PM   #12
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Quote:
Originally posted by oceanic30
Ok, this would be my setup:

Tweeter: RAAL 70-10
Mid: Jordan JXR6HD
Woofer: 2 x ScanSpeak 21W/8555-01 sealed
Crossover: 300 Hz & 6-7 kHz

So, would you run both 21W/8555 crossed at 300Hz? or one at 300Hz and then one lower? Does comb filtering occur at these frequencies?
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Old 30th August 2007, 03:47 PM   #13
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Hi motion,

I think your choice is right. The C44-8 is very well regarded in the (quality) diy field and surely can handle 800hz 24db slope even with high power. IMHO you could retain a quality 8" in the lower frequencies, 800Hz generally is not a problem (about of-axis energy and distortions). I project to use the C220N-T6 with this small upper-mid driver (I have a sub to handle the lowest fr)
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Old 30th August 2007, 04:16 PM   #14
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Quote:
Originally posted by m0tion



So, would you run both 21W/8555 crossed at 300Hz? or one at 300Hz and then one lower? Does comb filtering occur at these frequencies?
The setup would be active. Yes, I'd run both 21W up to 300 Hz; they would be connected separately to two pairs of terminals and use with them a stereo amplifier with two pairs of outputs per channel or a regular one with a bi-wiring cable or a modular 4 channel amp with an amplification module for each driver.
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Old 30th August 2007, 06:07 PM   #15
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I'd say an ultimate 3way needs a lot more cone area for the bass. One 6.5" just doesn't do it.

I'd go for something like:
AudioTechnology 15 E xxx (15")
AudioTechnology 4 H xxx (4")
LCY or Raven ribbon

XO-points as high as possible.
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Old 30th August 2007, 06:20 PM   #16
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Audax, HD3P on the top, HM100Z0 doing midrange duty, and PR240Z0 on the bottom. Oh hang on, that's what I already have.
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Old 30th August 2007, 06:27 PM   #17
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Quote:
Originally posted by Landroval
I'd say an ultimate 3way needs a lot more cone area for the bass. One 6.5" just doesn't do it.

I'd go for something like:
AudioTechnology 15 E xxx (15")
AudioTechnology 4 H xxx (4")
LCY or Raven ribbon

XO-points as high as possible.
I don't know about those 15'' Audio Technology drivers... That poly cone might be to soft to offer a fast, tight bass, the bass might be too fat and woolly for my taste. And I don't know if it's good to pass directly from a 15'' woofer to a 4'' midrange. Thats why I selected 8'' woofers; the bass from them might not go very deep, but the one they will make it will be a quality one and if I need to go deeper there are subwoofers.

Maybe the title of the thread should have been about the ultimate 4way because a 3way may not be something that could be called ultimate .
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Old 30th August 2007, 06:46 PM   #18
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What I know will work, and very well.
JBL 2226H, ported 75L / 40Hz
JBL 2123H 300 -1K
BMS 4552 or Beyma CP380M on a great flare like a DDS ENG1-90 Pro.
95dB sensitivity and less distortion than smaller drivers working hard. Excellent motor and diaphram designs.

I'm researching newer options of similar drivers. Audiophile stuff are like toys compared to these.
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Old 30th August 2007, 06:57 PM   #19
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Quote:
originally posted by oceanic30

Ok, this would be my setup:
Tweeter: RAAL 70-10
Mid: Jordan JXR6HD
Woofer: 2 x ScanSpeak 21W/8555-01 sealed
Crossover: 300 Hz & 6-7 kHz
Excellent choice IMO!!
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Old 30th August 2007, 08:10 PM   #20
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Quote:
Originally posted by pinkmouse
Audax, HD3P on the top, HM100Z0 doing midrange duty, and PR240Z0 on the bottom. Oh hang on, that's what I already have.
I love the chequerplate. Very, very cool.
http://uk.diyaudio.com/festival07/im...9-07-07-01.jpg
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