Best horns from 2-3 kHz for TAD TD-4001 - diyAudio
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Old 31st March 2011, 09:07 AM   #1
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Default Best horns from 2-3 kHz for TAD TD-4001

Looking for the best solution for a pair of TAD4001's - operating from 2-3 Khz somwhere, and upwards. ET-703 on top of that.

Any suggestions? Salad bowls? Le Cleach? Full roll-back? Wood? Bill Woods?

Looking for the ultimate in sound rather than efficiency, as it is high enough already
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Old 31st March 2011, 09:11 AM   #2
3GGG is offline 3GGG  Australia
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Look into the Le Cleach thread. Plenty of reading there.
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Old 31st March 2011, 09:53 AM   #3
pos is offline pos  Europe
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what will you be using under that horn?
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Old 31st March 2011, 12:12 PM   #4
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TAD TM-1201
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Old 31st March 2011, 12:50 PM   #5
limono is offline limono  United States
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OK without trying to offend Hornresp militia, you will be wasting TD4001 at 2-3khz cross and small horn IMHO. Bigger the horn -better it sounds, also I like it better with resistive Lpad (an old EV Lpad with quite a bit inductance to kill TADs peaky HF a little). It sounds bad in Salad Bowls (I have Edgar 350Hz) and Dr. Edgar has a theory that TAD 4001 was developed with it's own TH 4001 horn in mind and highly resistive padding to ameliorate it's defficiencies. I would not use it in any Tractrix except 180-250Hz with crossing no more than 7khz. Myself I much preffer JABO KH55a round exponential to Edgar horn.
Look at Cessaro Acoustic , their 4001 horn although tractrix like is at least 250Hz in size. Anyway over 3k you may use it without any horn with open back as a dome midrange....
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Old 31st March 2011, 12:53 PM   #6
pos is offline pos  Europe
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If used as a direct radiator, the 1201 will be quite beamy: ~70° at 2khz, and ~50° at 3khz (with lobs...), so you are looking for a horn with a narrow dispertion (and the ET703 will be a mismatch).
Also using the 4001 only down to 2/3khz is a bit of a waste, as it will certainly be better than the 1201 in the 1khz-3khz range (lower limit also depending on the horn, of course)

If you choose a 90° horn the 1.5khz would be the maximum crossover point to use.

Why not look for a TH4001 clone and use it down to ~1khz?
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Old 31st March 2011, 01:03 PM   #7
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Order a pair of LeCleach 200T(Fc=200Hz) from Auto-Tech in Poland. Sensationally low price. Would suit the 4001 extremely good. If going from2-3kHz go for a TD2001 instead.
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Old 31st March 2011, 01:23 PM   #8
limono is offline limono  United States
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The only problem would be how to integrate 200Hz LeCleach with tweeter and other channels...
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Old 31st March 2011, 01:47 PM   #9
jzagaja is offline jzagaja  Poland
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Possible solution when baffled:

SEOS waveguide

available in 18, 15, 12 and 10 inches.
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Old 31st March 2011, 01:48 PM   #10
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Quote:
Originally Posted by pos View Post
If used as a direct radiator, the 1201 will be quite beamy: ~70° at 2khz, and ~50° at 3khz (with lobs...), so you are looking for a horn with a narrow dispertion (and the ET703 will be a mismatch).
Also using the 4001 only down to 2/3khz is a bit of a waste, as it will certainly be better than the 1201 in the 1khz-3khz range (lower limit also depending on the horn, of course)

If you choose a 90° horn the 1.5khz would be the maximum crossover point to use.

Why not look for a TH4001 clone and use it down to ~1khz?
Are you shure the TD-4001 sounds better than the TM-1201 below 2-2.500 Hz? I have both here, with TH-4001 also.
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