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sey
11-01-2013, 17:33
Hello everyone,

The crossover was the Z-Audio creation. The crossover is simple - the horn driver had a capacitor filtering the low frequencies and an lpad. The woofer has a choke. The circuit is very similar to the
http://www.kogerer.ru/subj/fostex/pic/ft33rpdim.gif
but with different values. Crossover Frequency ~1.7 kHz.

The crossover assembled on Teflon Board with damping material and cork board.
https://lh6.googleusercontent.com/-BoI6fNguVLw/UMmXkFYAh4I/AAAAAAAAEU8/t2rM6bxkHy8/s1152/IMG_7626.JPG

Wiring:
1) Acrolink 6N-S1040 - from terminal panel to crossover, crossover to LF driver
http://www.acrolink.jp/products/images/scable/kouzou_s1040-2.gif
2) Сotton Covered Stranded Copper Litz - from crossover to horn driver
3) Vintage Western Electric Copper

Four pin speaker connector replaced with YAMAMOTO terminal strip.
http://www.partsconnexion.com/media/product/boards_strips/YAMAMOTO-70627.jpg
https://lh4.googleusercontent.com/-qRgGu3hyDqI/UMTkZgENscI/AAAAAAAAERU/cb_I6Sz3EXE/s1280/IMG_7553.JPG


https://lh5.googleusercontent.com/-cjilRSY-xnI/UMYXPhkA6CI/AAAAAAAAESw/QSAa-vc4-FQ/s1152/IMG_7601.JPG
https://lh4.googleusercontent.com/-QETSSBEqfjM/UMmXkJB6ebI/AAAAAAAAEU8/-evUw_JSLuI/s1152/IMG_7633.JPG
https://lh3.googleusercontent.com/-KhPSnKYWp1U/UMmXkP9xHdI/AAAAAAAAEU8/3uIj7oIzVWs/s1152/IMG_7635.JPG
https://lh3.googleusercontent.com/-SewDSjyJUG0/UMYXPl_eqyI/AAAAAAAAESw/f63fgXrZutk/s1152/IMG_7599.JPG
https://lh5.googleusercontent.com/-qxhJFKKbXxA/UMxr4R4nRMI/AAAAAAAAEXY/H42jd9HprLQ/s1280/IMG_7639.JPG
https://lh3.googleusercontent.com/-7wZY2hSbgA4/UMxwU0MviJI/AAAAAAAAEYI/PLgVMUU1Fl4/s1280/IMG_7646.JPG


The next step will be building new cabinets.

Audio Al
11-01-2013, 17:44
Love it :D

Always like some DIY

walpurgis
11-01-2013, 19:47
Not sure I agree with a 6db/oct slope serving a compression driver tweeter @ 1.7 kHz. The tweeter power handling will be compromised by upper bass signal getting through and the tweeter diaphragm resonance is likely to be excited, causing some nasty distortions. I'd say a minimum requirement would be a 2nd order (1/2 section) filter, giving a 12db/oct roll-in.

sey
11-01-2013, 19:56
Not sure I agree with a 6db/oct slope serving a compression driver tweeter @ 1.7 kHz. The tweeter power handling will be compromised by upper bass signal getting through and the tweeter diaphragm resonance is likely to be excited, causing some nasty distortions. I'd say a minimum requirement would be a 2nd order (1/2 section) filter.

Tannoy 12" Red sound amazing.

Crossover circuit
http://www.44bx.com/tannoy/images/MonitorRedSilver12xO1.gif
Crossover frequency 1.7 kHz.

Rare Bird
11-01-2013, 20:00
They are some nice quality Transformers on dat Toobe amp..

walpurgis
11-01-2013, 21:05
Tannoy 12" Red sound amazing.

Crossover frequency 1.7 kHz.

And that particular filter is a 2nd order 12db/oct jobbie! Not a single, series capacitor.

sey
11-01-2013, 21:17
And that particular filter is a 2nd order 12db/oct jobbie! Not a single, series capacitor.
The results are magnificent. I do not want to change anything :)


How about Tannoy DC6000?
http://i60.photobucket.com/albums/h18/Daypuma/Tannoy%20DC-6000/dc6000skjema.jpg?t=1170534399

Jonboy
11-01-2013, 22:18
They are some nice quality Transformers on dat Toobe amp..


I have been told there the best you can get

Ali Tait
12-01-2013, 02:47
I have been told there the best you can get

Dunno about that, but yes, the hype seems to say so.

Not convinced myself.

Ali Tait
12-01-2013, 02:49
There was the persistant rumour that James trannies were made on the same production line as Tangoes, but hey, it was just a rumour.

sey
12-01-2013, 07:56
I have been told there the best you can get
Yes, Vintage Tango Hira is one of the best transformer. But you will have to work hard to make them sound good. The blend of vintage (Allen-Bradley resistors, Western Electric wire and tubes) and modern parts gives gear its signature voice.

https://lh4.googleusercontent.com/--hYU3f45G6M/UMyzqisVDtI/AAAAAAAAEZo/JT6kE5NQKpo/s1440/IMG_4938.JPG
https://lh5.googleusercontent.com/-7b5p6Z50fuI/UOQwshG63ZI/AAAAAAAAEgo/HvAfHQSez1I/s912/IMG_7641.JPG

sey
12-01-2013, 09:35
Tube DAC and Line Amp.
https://lh4.googleusercontent.com/-iMaW4iP22rc/UMyzqvwJ7pI/AAAAAAAAEZs/zjmikmvf2k8/s1600/IMG_7624.JPG
Design without compromise.

walpurgis
12-01-2013, 12:40
The results are magnificent. I do not want to change anything :)


How about Tannoy DC6000?
http://i60.photobucket.com/albums/h18/Daypuma/Tannoy%20DC-6000/dc6000skjema.jpg?t=1170534399

Wonder why the inductor values aren't quoted. Shoudn't be too hard to work them out though.

sey
12-01-2013, 13:51
The simple solutions are always the best.
https://lh4.googleusercontent.com/-RuqFS-zFLQk/UPFqFU4loQI/AAAAAAAAEms/zibOw94m4Xc/s1280/IMG_7547.JPG

sey
12-01-2013, 14:26
Could anyone tell me what the best cabinets for Tannoy 12" Golds?

Jonboy
12-01-2013, 17:18
Could anyone tell me what the best cabinets for Tannoy 12" Golds?


I have listened to GRF's fitted with both 15's and 12's, certainly very good or Lockwoods is the other choice as used by some members here which also sound very nice, there are plans around to make them if your handy with woodwork

GRF (http://44bx.com/tannoy/grf.html)


Lockwood (http://www.lockwoodaudio.co.uk/)

Ali Tait
12-01-2013, 17:21
What dac chip are you using?

sey
12-01-2013, 17:23
what dac chip are you using?
ym3623b + npc sm5840 + pcm63p-k

Jonboy
12-01-2013, 17:26
Dunno about that, but yes, the hype seems to say so.

Not convinced myself.


Only ever heard them in Wavac SE amp (http://www.wavac-audio.jp/ec300b_e.shtml) who i thought had or tried to have the monopoly on them, did sound good though especially for a 300b amp which is not my favorite valve much better and more controlled bass than the Audio Notes

walpurgis
12-01-2013, 22:13
Could anyone tell me what the best cabinets for Tannoy 12" Golds?

That would depend largely on how much room you have, how much you intend to spend and how good your cabinet making skills are if you're constructing your own cabinets.

Did you have any type of cabinet in mind?

The Black Adder
13-01-2013, 08:12
They may look complex aesthetically but I can assure you they aren't.

walpurgis
13-01-2013, 13:17
I'm not sure what is being suggested here. Surely the crossover will have little or no influence over the last half octave or so of bass, which is the only part of the lower frequency range affected by a cabinet change.

The older Tannoy cabinets can be significantly improved with some well thought out internal bracing and modern damping materials. There are articles on the net covering such mods. It saves an awful lot of carpentry and expense and the look of the older cabinets is rather appealing in my opinion.

Older components are not necessarily 'bad sounding', if they measure well, they may be perfectly fine. modern replacements are not garuanteed to improve things. 'Upgrades' so to speak, are something to be very careful with.

The Black Adder
13-01-2013, 14:58
.