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Old 28th September 2010, 11:43 AM   #91
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Thanks. So I will contact Zhou Fang.
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Old 28th September 2010, 12:38 PM   #92
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If that's unsuccessful, you can try "utsource" - they have them, at U$1 each.
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Old 29th September 2010, 03:39 AM   #93
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Thanks for that information. I have mailed utsource.
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Old 29th September 2010, 10:49 AM   #94
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Juma

you have lowered power lowering rails to 20 V
Is 400 mA @ 20 V the sweet pot
can power be increased If we add more pairs and use original F5 24 V rails
have you think to do balanced amp
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Old 29th September 2010, 11:37 AM   #95
juma is offline juma  Serbia
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Quote:
Originally Posted by samoloko View Post
Juma

you have lowered power lowering rails to 20 V
Is 400 mA @ 20 V the sweet pot
can power be increased If we add more pairs and use original F5 24 V rails
have you think to do balanced amp
It's 400mA per MOSFET = 1.2A per channel. Raising the rail voltage, adding more pairs, bridging, going balanced, SuSy - they are all viable options, but I already found what I like the best.
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Old 29th September 2010, 12:33 PM   #96
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thx for your reply

can I change original F5 1 pair with 3 pairs 2sk2013/2sj313
power supply Is unregulated 23 V total bias 1.6 A
will I get better sound running with more than 1.2 A

regards
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Old 29th September 2010, 01:02 PM   #97
Zen Mod is offline Zen Mod  Serbia
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go back one page and read ;

it's already asked and already answered

think about dissipation per mosfet
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Old 24th October 2010, 05:16 PM   #98
NYCOne is offline NYCOne  United States
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I have to say, I find this idea very interesting. Are there any other reports listening reviews from people that have replaced the native outputs of the F5 with 3 2sk2013/2sj313?
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Old 24th October 2010, 05:24 PM   #99
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Juma's opinion is enough valid for me
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Old 24th October 2010, 06:37 PM   #100
generg is offline generg  Germany
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I put the pieces in Aleph P 1.7 and Pumpkin and had a very good impression, much more detailed.....
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