If you were my neighbour you could borrow mine (4003) so you could at least hear those beautiful loudspeakers go after all the work that has been done.
If you were my neighbour you could borrow mine (4003) so you could at least hear those beautiful loudspeakers go after all the work that has been done.
Originally Posted by Ian Mackenzie
thank you for good offer
we wait and see what the seller of drivers will do
are you using them in your system and what kind of speaker are you using them in?
I prefer not to publicise my lunicy too often ....LOLthank you for good offer
we wait and see what the seller of drivers will do
are you using them in your system and what kind of speaker are you using them in?
Edit : Diy version of this
(Image C/- Oswald Mill Audio)
No problem
I think at the best way for me is to send my TAD Td-4003 to this company http://www.hornstudio.de/tad.htm in Germany for repair
I will not sell my TAD 2404 monitors they are going to cost me to much so I will not sell them
How did I miss this thread !
TN-4 has nothing to do with DN-2404 network. TN-4 was for the range of TAD PA loudspeakers, crossing at 800Hz 36dB/oct for LF and 12dB/oct for HF with no EQ at all for the horn (we can then expect that the corresponding TH-4371 horn did not require any EQ). There are low variation in TAD crossover network design, TN-4 is almost a shifted to 800Hz version of TN-1. Furthermore TN-4 is ONLY for twin bass unit versions of TAD speakers and unlike the documentation cannot be used with a single woofer. I had the opportunity to play (and do some measurements of the components) with TN-4 and I know what I'm talking about.
It can be nice to have more information about the 2404 network, LF section being probably close to TN-2 LF network. TL-1601c can be seen as a modern version of TL-1601a. Is it possible to get values and schematic ?
In TSM2 (seems to be about the same volume), bass reflex port is tuned to 32Hz. 28Hz from formulas is a bit lower especially because the three inductances of the LF crossover (look to the shaped plastic of the network, on the right is the LFpart with three inductances and the long box is the place of capacitors such as in TN-4) will have a resistance value that will modify a bit Qts of 1601c and you'll have to adapt port length to get what you want in terms of tuning frequency. The best is to measure the impedance for adjusting.
I ordered TAD recone kits to Phase Akustik (Hornstudio.de), and the service was OK.
PS: We have plans one day to spend vacations in Iceland, this will probably place this higher in the trip priority list if there is a possibility to visit
These are speakers for life. I've no intention neither to sell my TAD 2402/TSM2 replicas.
Actually I need to choose between my S9900 project and the TADīs I canīt keep both
there is nearly impossible to sell the S9900 but my TAD 2404 with new Td-4003 dias easier to sell for good price
Keep the TADs, otherwise you'll regret.Actually I need to choose between my S9900 project and the TADīs I canīt keep both
there is nearly impossible to sell the S9900 but my TAD 2404 with new Td-4003 dias easier to sell for good price
Why is it impossible to sell the S9900 ? Should be easier, anyone knows (even my kids know JBL, isn't it the name of a small bluetooth cube playing the music from phones) the brand name JBL.
First of all, sorry for asking these things again, I hope I donīt misuse this thread!
So the formula didnīt take the three inductances into account, right? So the 28hz tuning is without the crossover and in reality tuning frequency will raise from 28hz to 32hz because of the resistance of the inductors?
If I run the woofer without the passive crossover, I would have to shorten the ports a bit to reach a 32hz tuning, right?
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Sorry if I might mix up on things, but the thread-starter used a volume of 171 liters in the formula rather than your 135 liters.
Thatīs why he gets 28hz tuning and you get 32hz tuning with the same port-length?
Or does the 2404 enclosure uses a different woofer-type?
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Iīve looked at this page for the specs on the TAD woofers:
http://www.technicalaudiodevices.com/lf-units
QTS is 0,34 for TL-1601a and TL-1603, but is 0,31 for TL-1601b. FS and VAS is very similar on all of them.
Thatīs why I was thinking 1603 is closer to 1601a than to 1601b...
Btw; can I simply copy the value of the End correction factor or how do I determine this figure for the formula for the 1603 ?
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Subtracting the panel thickness of 22mm from the outside dimension, I get 202,5 liters for the internal volume for the 2402 enclosure. Of course bracing, driver displacement and midrange-horn displacement has to be subtracted of that 202,5 liters, but my guess wouldīve been this could result in 20-30 liters. To result in a netvolume of ~130 liters the insides must occupy nearly 70 liters! Is the 2402 braced that heavily?
Donīt get me wrong, I do not want to argue with you or doubt knowledge as you have build a copy yourself, I just want to understand.
You are right, I forgot the resistance of the coils (around 0.6 ohm in TN-2 network). This is lowering the Fb value repectively to the port length. This is meaning port has to be shorter than the computed value.
There should be something wrong as TS of 1603 are the same as the ones for 1601b (same cone, and magnetic field), while 1601c as used in Exclusive 2404 has similar TS as the 1601a
TL-1601a/b/c takes about 6L of volume. TH-4001/TD-4001 takes about 30L, Bracing parts are huge with 44x60mm sections
Congratulations!
They look great... always even better when they sound good too!
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FinishedGood Enough .... the sound is just gorgeous . At any volume they are genuinely captivating
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