Hi,
has anybody the design of the crossover?
I know they use the TN-1 dividing network but i dont know how they do it.
Thanks for your help.
Josef
has anybody the design of the crossover?
I know they use the TN-1 dividing network but i dont know how they do it.
Thanks for your help.
Josef
Are you sure? What do you mean by "you don't know"?!
Do you really want to make one/pair?
http://www.diyaudio.com/forums/multi-way/80068-tad-th4001-clone-project.html
Do you really want to make one/pair?
http://www.diyaudio.com/forums/multi-way/80068-tad-th4001-clone-project.html
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Hello
i know it is an old post, but somebody has found the TN1 crossover schematic ?
And can share it ?
Cordially
Pascal
i know it is an old post, but somebody has found the TN1 crossover schematic ?
And can share it ?
Cordially
Pascal
Uhm, that's the crossover of the 2402 - which got just one woofer. Just replicating the crossover won't be enough, you have to change the inductances and capacitances for the woofer branch and you also need to find another 6dB for the tweeter because that's exactly the gain for double the cone surface and half of the impeance (=double the power).
The crossover Network in the 2401 is the TN-2.
EXCLUSIVE model2402
EXCLUSIVE model2401twin
better something than nothing 😉
they are very similar, so at least he has some starting point
check attached image
they are very similar, so at least he has some starting point
check attached image
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Last edited:
Yes, that's ofcourse true but I wanted to mention that since it wasn't obvious.
Anyway, if the original drivers and horns aren't used, a completely new crossover has to be developed.
Anyway, if the original drivers and horns aren't used, a completely new crossover has to be developed.
Thank you Neskor
But like say ICG these crossover TN1 and TN2 are not identical, the fact to use 2 drivers in // will change a lot of things in the crossover, impedance, correction,...
Strange that this schematic was never diffused since these speaker have their production stopped (an error from TAD to stop AMHA)
Friends it seems this TN1 schematic will stay the Holy Grail for a long time ;-)
Thank you in any case
Cordially
Pascal
But like say ICG these crossover TN1 and TN2 are not identical, the fact to use 2 drivers in // will change a lot of things in the crossover, impedance, correction,...
Strange that this schematic was never diffused since these speaker have their production stopped (an error from TAD to stop AMHA)
Friends it seems this TN1 schematic will stay the Holy Grail for a long time ;-)
Thank you in any case
Cordially
Pascal
That is great!
Thank you Marco.
I can see that HF part of TN-1 crossover is also different HF part of TN-2.
Thank you Marco.
I can see that HF part of TN-1 crossover is also different HF part of TN-2.
I have very little knowledge in reading xo-schematics. Are the two woofers run in parallell?
The whole speaker is different and you have to build a completely new crossover so it does not help to get the same L-Pad. That means you can choose what's available. Sound quality wise it's better to use resistors for a fixed voltage divider. If you want to use one anyway, you should use one that's for the impedance of your tweeter otherwise it will behave differently than expected, it will interact with the filter circuit. Measure the impedance of the tweeter in the box/horn/WG before, just a nominal impedance or DC resistance does not help because in a horn the impedance rises a lot with often even higher peaks.
8 Ohm L-pads are widely available, 16 Ohm only some and hardly any 4 Ohm.
Thank you for your reply.
So, I understand that if I modify 2 resistors it is better than an L PAD of course but I try to
makes a perfect clone.
I worked for a long time in the studio (studio lauzanette - france) and I have never heard better than the TSM1
So I start to do the speaker cabinets
I post the plans here if someone is interested (I specify that the plans are not mine) 🙂
So, I understand that if I modify 2 resistors it is better than an L PAD of course but I try to
makes a perfect clone.
I worked for a long time in the studio (studio lauzanette - france) and I have never heard better than the TSM1
So I start to do the speaker cabinets
I post the plans here if someone is interested (I specify that the plans are not mine) 🙂
Attachments
Late to this topic, but I can attest to how well the TN-1 seems to work. I did modify the HF section with charge-coupled caps but other than that they are true to the schematic.
Mirror image pair, noble L-pads, Soviet era PIO caps... Now I just need to get the cabinets built.
Mirror image pair, noble L-pads, Soviet era PIO caps... Now I just need to get the cabinets built.
Nice job, but please be mindful that those relatively small air-core coils in the LF section of the crossover will have significantly higher DCR than the original steel i-core coils that Pioneer used. So you'll get less Woofer damping (increased Qe), and the stock cabinet tuning won't work as intended.