Yes, that's what he said, it was meant to have that roll off with the radial horn to sound right else it was too forward and aggressive. This did not apply to his earlier TAD drivers
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What are the pros & cons of high-efficiency horns?
- Thread starter manisandher
- Start date
Yes, that's what he said, it was meant to have that roll off with the radial horn to sound right else it was too forward and aggressive. This did not apply to his earlier TAD drivers
Have you ever compares 4001 vs 4003? If so what is your impression?don´t agree
just need to adress the slight peak
me and a friend tested compression drivers and horn combos for 3 years and the 4003 correctly implemented sounds best in all horns we tested compared to all other drivers we tested
spectacularly low distortion too, wich is already easily hearable during the distortion measurement itself...
in 2404 the 4003 is meant to go all the way up in a CD like horn which gives it a sort of forgiving character due to the hf roloff, which in itself is ok
I use it from 600-6K in JMLC 270 with TAD TD-2002 in JMLC2500 on top
best
Leif
2001 vs 2002 also.
Ciao,
Tang
you´ve come to the right man 
I replaced 4001 and 2001 with 4003 and 2002
the new drivers have much less distortion and are much cleaner and pleasant to listen too
4001 tend to have a little "brittle" signature on certain frequencies
difference to 4003 might be different diaphragm suspension
the 4003 performs further down in same horn with more "growl"
both have better body and harmonics
2002 is more extended and supertweeterlike in extension, but still with the twack and body of a 1" compression driver
this is why I prefer it to ET-703...could possibly add over 15-20K but don´t see the point
4003 is also a better candidate to cover whole range from hipass in a constant directivity horn, due to more even response upwards above 10K
no other drivers we tested were even close
JBL 2450SL with Truextent on a good second
best
Leif
I replaced 4001 and 2001 with 4003 and 2002
the new drivers have much less distortion and are much cleaner and pleasant to listen too
4001 tend to have a little "brittle" signature on certain frequencies
difference to 4003 might be different diaphragm suspension
the 4003 performs further down in same horn with more "growl"
both have better body and harmonics
2002 is more extended and supertweeterlike in extension, but still with the twack and body of a 1" compression driver
this is why I prefer it to ET-703...could possibly add over 15-20K but don´t see the point
4003 is also a better candidate to cover whole range from hipass in a constant directivity horn, due to more even response upwards above 10K
no other drivers we tested were even close
JBL 2450SL with Truextent on a good second
best
Leif
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The TAD 4003 has smaller throat though so better performance on highs would be expected. When I tried the 4001, I actually preferred the Radian 850 for my intended bandwidth...
2001 is a very good driver though, I have not heard 2002 but if it betters 2001 than it must be great. I should find one and try!
2001 is a very good driver though, I have not heard 2002 but if it betters 2001 than it must be great. I should find one and try!
personally I think 4003 and 2002 stand out as exceptional both in use and build quality
the 4003 was better down too...
850 was one of many drivers we tested in different horns
actually we had to buy a lot of drivers, because nobody had them lying around for loan...among them a set of BMS4592ND from down under...
the 4003 was better down too...
850 was one of many drivers we tested in different horns
actually we had to buy a lot of drivers, because nobody had them lying around for loan...among them a set of BMS4592ND from down under...
personally I think 4003 and 2002 stand out as exceptional both in use and build quality
the 4003 was better down too...
850 was one of many drivers we tested in different horns
actually we had to buy a lot of drivers, because nobody had them lying around for loan...among them a set of BMS4592ND from down under...
I had Tad 4001, BMS 4592nd-mid, Radian 850 for 2" and my favorite for what I do turned out to be the Radian. I kept the bms 4592nd-mid in my modified klipschorn playing up to roughly 6.5khz.
Radian 850 had the resolution of TAD but was also more relaxed sounding and as dynamic. The crossover and horn that couples to the c.d. has to be taken into account and that makes all the difference, at least that is what I found.
Hi Leif,you´ve come to the right man
I replaced 4001 and 2001 with 4003 and 2002
the new drivers have much less distortion and are much cleaner and pleasant to listen too
4001 tend to have a little "brittle" signature on certain frequencies
difference to 4003 might be different diaphragm suspension
the 4003 performs further down in same horn with more "growl"
both have better body and harmonics
2002 is more extended and supertweeterlike in extension, but still with the twack and body of a 1" compression driver
this is why I prefer it to ET-703...could possibly add over 15-20K but don´t see the point
4003 is also a better candidate to cover whole range from hipass in a constant directivity horn, due to more even response upwards above 10K
no other drivers we tested were even close
JBL 2450SL with Truextent on a good second
best
Leif
What other drivers have you compared the TADs to? I have found that my Beyma CP350Ti, which has quite low measured distortion and no obvious breakup peaks, sounds exceptionally clean in the highs and allows for very nice tonal differntiation in high precussion instruments. I also have the CP755Ti, which is a Ti dome with mylar suspension. It doesn't measure quite as low in distortion and so far to my ears is a bit less realistic sounding but still sounds very clear and clean through the whole range I use it (1Khz-20Khz). For information, the CP350Ti is in a wooden Tractrix or Spherical horn (it is a commercial design so I don't have the exact horn type knowledge) and the CP755Ti is in an Elliptical horn from 18 sound. On some forums people were saying that the Beymas were truly a poor man's TAD and highly competitive in SQ.
different JBLs incl K2
TAD 4002
both RADIANs with and without Te be dias
BMS
and then some more...don´t quite remember which
this was an ongoing project where my tech friend did all measurements and documentation
also making fab both analogue and digital x/o...
we also designed the dual FLH 15´s for midbass duty
TAD 4002
both RADIANs with and without Te be dias
BMS
and then some more...don´t quite remember which
this was an ongoing project where my tech friend did all measurements and documentation
also making fab both analogue and digital x/o...
we also designed the dual FLH 15´s for midbass duty
ditched the BMS 4592ND
sounds plastic imo
same as their fab measuring 4538...one of few tweeters with high sens up where you actually need it
sounds plastic imo
same as their fab measuring 4538...one of few tweeters with high sens up where you actually need it
Give the Beyma drivers a try...won't cost you a fortune to do so...they are not cheap but not premium priced either.
Not the drivers I was referring to. The drivers I was referring to do not have 2 inch exit throats (CP350Ti is a 1 inch exit throat and CP755Ti is a 1.4 inch exit throat) and have smaller diaphragms (1.75 inch and 3 inch, respectively). The CP750Ti would work as it has a 2 inch throat but still a 3 inch diaphragm that is hybrid (titanium with mylar surround) and ferrite magnet (not Nd like the 2450). It is basically identical to the CP755Ti except for the throat exit. Perhaps the 2450H is like the CP850Nd but I have never tried this driver.
I went from JBL 2440 to 2440 with 2450SL diaphragms to the K2 driver (435Be?) to TAD 4001 to Goto SG370 to TAD 4003. All on the same type of horn with in the case of the Goto a Goto approved and supplied adaptor. The 4003 was, to me ,such an improvement that I have for more than a decade now never considered any other driver.
A recent surprise discovery (not in this system but another-shown below) is the little Renkus Heinz 1800-8. A frequent visitor and fellow horn traveller declared the Renkus to be producer of the second best highs he ever heard That is after the TAD 4003 in my main system . Despite owning multiple horns and drivers he scoured the world,eventually tracking down and promptly buying a pair of Renkus 1800 in Poland. Yes they are indeed on a CD horn with an extremely simple eq fix.
IMG_0355 by jdza, on Flickr
A recent surprise discovery (not in this system but another-shown below) is the little Renkus Heinz 1800-8. A frequent visitor and fellow horn traveller declared the Renkus to be producer of the second best highs he ever heard That is after the TAD 4003 in my main system . Despite owning multiple horns and drivers he scoured the world,eventually tracking down and promptly buying a pair of Renkus 1800 in Poland. Yes they are indeed on a CD horn with an extremely simple eq fix.
IMG_0355 by jdza, on Flickr
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Smaller horn below. The system is multi amplified with drivers directly coupled to amplifiers ,so apart from volume compensation no change needed. The system was initially designed for all Goto drivers ,so other drivers essentially slotted into that architecture with low upper mid xo staying at 900Hz and upper-mid tweeter crossover varying from 6k (Goto) to 10k (JBLs) to essentially none for 4003s with the long serving Goto SG 16TT tweeters now only acting as off- axis fillers to compensate for beaming of the large format horn. Both upper mid and tweeters act as dipoles with rear firing JBL buttcheeks and baby butts doing rear firing duties at an extremely low level.
fullsizeoutput_716 by jdza, on Flickr
IMG_0014 by jdza, on FlickrIn a full multi amplified system the driver is coupled to the amplifier not to the crossover directly. Driver impedance therefore does not affect the nature of the crossover. Level is and is compensated for by the crossover level settings. This is laborious and take months or even years to achieve . Your scary blitzkrieg approach to component evaluation is sure to sink any attempt in reaching meaningful conclusion in driver comparison.
I am not trying to evaluate drivers that way. I don't think I can evaluate drivers in more than a 2 way without having multiple horns and amps and crossover. I evaluate over years. I will have systems whose changes I track so that I will hear them when they change horns, drivers, or amps.
Apart from that we both agree with Leif that TAD 4003 is fantastic
. I don't know how it compares to other Tads though I like 2001 and Tang's 4001+2001+703 highs. Imo only better driver is AER BD4 and 5, and that too those are very amp specific
I agree ... & sometimes it's a sisifus work/tuning ....
One perso note (musical); with a passif X-over it's a never ending tuning story ...
Karel
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