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Old 14th December 2011, 03:48 PM   #11
Stealth is offline Stealth  Slovakia
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Dukja, when you don't need a balanced in/output,
aleph L would be ok
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Old 14th December 2011, 05:24 PM   #12
generg is offline generg  Germany
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Quote:
Originally Posted by KatieandDad View Post
I've never bought from KK-PCB but ZenMod had some very derogatory comments about the quality of their boards.
I can say the traces are fairly small, even on places most people would make them broader....
most important point..... holes are small ,only small wires have place... I could not place some components, better caps etc.

but they work.
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Old 14th December 2011, 05:40 PM   #13
generg is offline generg  Germany
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pumpkin is very good pre!

If you cannot get the shunties working....take another PSU for instance this...
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Old 14th December 2011, 05:55 PM   #14
dodo is offline dodo  Poland
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-> Dukja

In case you will have a chance to get mached pairs 2sk170/2sj74BL strongly recomend
JFET-DISPRE II , designed by Pavel Macura ( PMA);
much better then Aleph P ,
I haven't found any competitor in range 1000-1500 USD comercial preamps
( Cambridge Audio 840E , Quad, Vincent ,Xindac)
But you have to take care about transistor matching and use very good pot ( Noble from Percy - as minium )
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Old 14th December 2011, 06:03 PM   #15
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Originally Posted by generg View Post
I can say the traces are fairly small, even on places most people would make them broader....
most important point..... holes are small ,only small wires have place... I could not place some components, better caps etc.

but they work.
all holes on kk-pcb boards are smal. that is so you can drill them to your wanted sice. i think it says so in his documents too.
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Old 14th December 2011, 06:18 PM   #16
Zen Mod is offline Zen Mod  Serbia
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trace design is compromised - made that parts are pretty-to-eye laid on top of pcb , not for optimized electrical layout .
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Old 14th December 2011, 06:55 PM   #17
generg is offline generg  Germany
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Originally Posted by AudioSan View Post
all holes on kk-pcb boards are smal. that is so you can drill them to your wanted sice. i think it says so in his documents too.
I thought about doing it but I decided not to drill larger holes in these small traces and "eyes" .....
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Old 14th December 2011, 07:00 PM   #18
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Originally Posted by dmsims View Post
Is the B1 any good for you ?
I went through a similar quest for a suitable preamp for my aleph3 as well as the F5. If you don't have efficient speakers B1->Aleph 3 will be found wanting. You need a few db of gain at least in your pre stage for speakers that are 89-90 db or lower in efficiency.

I finally settled on this tube preamp and I have found a great combination. DIY ECC802S (12AU7 / ECC82) Vacuum Tube SRPP Preamplifier

uv.
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Old 14th December 2011, 07:07 PM   #19
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Originally Posted by generg View Post
I thought about doing it but I decided not to drill larger holes in these small traces and "eyes" .....
okei. i drilled up for power cables and speaker cable, and had no problem.
and for the NTC on aleph P PSU.
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Old 14th December 2011, 07:08 PM   #20
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My Pumpkins seem Ok but the Shuntkys are playing up. I'm just trying basic regulators at +/- 36V to see if I can improve matters.
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