Dear Brain,
Sorry for the late response, But today I bought the camera and
was able to take pictures.
Meanwhile I found the cause
Transformer fault was not of good quality.
I changed and now works perfectly.
I put coupling capacitors 33mkFx16v BG.
First Watt F5 balanced not work without.
The sound is incredible!!!!
Thank you all for your help
Best regards,
Vitali
Attachments
tweaking BAL /SE stage
My buffalo II + Legato 3 is working great with BAL/SE and Buffer. Thanks for making such great products.
The gain is a little low for my amp in such that I have little headroom. Russ mentioned that it is better to adjust the gain in BAL/SE stage rather than in I/V stage. So here go some questions.
1. what do I change to increase gain in BAL/SE stage?
2. How much would be the max V RMS, can I achieve in SE output without taxing sound quality? Idealy I would like something near 2.4V RMS.
3. I would like to upgrade parts in BAL/SE stage to gain even more improved sound quality. Besides OP amps and buffer chip itslef, what would be the most critical parts in BAL/SE buffer stage for the sound quality? ( plan to use decrete op amp variety and leave buffer itself alone..)
4. Also is the gain of SE stage matched with BAL in stock? Are they both 1.6V rms?
5. For the case of the dual mono buffalo II + SINGLE legato 3, what would be the best configuration for SE output. I know Russ mentioned in a DIY audio forum that parallering the 2 buffalo outputs is the best for balanced o case, but I wonder what it would be for SE case. If I understand correctly, the parallering still doubles the current input to legato, w.r.t. stereo case, so should I use lower IV resistors from 150 ohm and correspondingly the CCS resistors, AND change parts in BAL/SE to get the gain I want?
Thanks!
-John
My buffalo II + Legato 3 is working great with BAL/SE and Buffer. Thanks for making such great products.
The gain is a little low for my amp in such that I have little headroom. Russ mentioned that it is better to adjust the gain in BAL/SE stage rather than in I/V stage. So here go some questions.
1. what do I change to increase gain in BAL/SE stage?
2. How much would be the max V RMS, can I achieve in SE output without taxing sound quality? Idealy I would like something near 2.4V RMS.
3. I would like to upgrade parts in BAL/SE stage to gain even more improved sound quality. Besides OP amps and buffer chip itslef, what would be the most critical parts in BAL/SE buffer stage for the sound quality? ( plan to use decrete op amp variety and leave buffer itself alone..)
4. Also is the gain of SE stage matched with BAL in stock? Are they both 1.6V rms?
5. For the case of the dual mono buffalo II + SINGLE legato 3, what would be the best configuration for SE output. I know Russ mentioned in a DIY audio forum that parallering the 2 buffalo outputs is the best for balanced o case, but I wonder what it would be for SE case. If I understand correctly, the parallering still doubles the current input to legato, w.r.t. stereo case, so should I use lower IV resistors from 150 ohm and correspondingly the CCS resistors, AND change parts in BAL/SE to get the gain I want?
Thanks!
-John
Hello Russ,
Is it possible to use silver mica or styroflex capacitors, like this:
25 Styroflex Kondensator Capacitor 2210pF 63V TGL33965 | eBay
Thanks,
Angel
Is it possible to use silver mica or styroflex capacitors, like this:
25 Styroflex Kondensator Capacitor 2210pF 63V TGL33965 | eBay
Thanks,
Angel
First Watt compatibility
Has anyone tried the Legato 3.1's balanced output in to a Nelson Pass First Watt F1 or F1-J current output amplifier? Can they handle the DC or would I still need coupling caps?
I am intrigued by the idea of a class A lightly damped power amp for my Lowther open baffle speakers. I haven't even received my B3 yet and I'm starting to think about the 'next' project....
Has anyone tried the Legato 3.1's balanced output in to a Nelson Pass First Watt F1 or F1-J current output amplifier? Can they handle the DC or would I still need coupling caps?
I am intrigued by the idea of a class A lightly damped power amp for my Lowther open baffle speakers. I haven't even received my B3 yet and I'm starting to think about the 'next' project....
I tried F5X( Euvl), but does not work without capacitors
Did you try it with the ground connected?
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