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Old 11th September 2012, 09:00 PM   #1061
Salas is offline Salas  Greece
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Intended speakers have a lowest 4 Ohm valley at power range 200hz-800Hz, but 95dB/1W, has the mojo for those?
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Old 11th September 2012, 09:05 PM   #1062
sonnya is offline sonnya  Denmark
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Salas...

Install ALF16N16 and ALF16P16 and reduce RF and RG to 499R and 49.9R

C12 and C13 should be 220pF.

To for the lower gain as your speakers are very sensitive....
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Old 11th September 2012, 09:06 PM   #1063
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My speakers are sensitive but my preamp ain't, its a buffer...
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Old 11th September 2012, 09:13 PM   #1064
sonnya is offline sonnya  Denmark
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But if your source can drive it to 2Vrms it should be ok. Else use 1K and 49.9R
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Old 11th September 2012, 09:15 PM   #1065
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Ask Joachim about powersupply as he has sensetive speakers too...
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Old 11th September 2012, 09:17 PM   #1066
Salas is offline Salas  Greece
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Phonographic source, low mc cart, not helping. I will use it as 26dB and see how it goes first. SSA 26dB Sziklai p2p A/B 175mA bias source follower proto was boom rocking them.
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Old 11th September 2012, 09:19 PM   #1067
Salas is offline Salas  Greece
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TSSA may do that too, lets let it speak first.
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Old 11th September 2012, 09:19 PM   #1068
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A cap multiplier was madatory on my build. Otherwise there was a small hum. I think that behavior is typical for class A amps with low open loop gain. See the JLH 10W.
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Old 11th September 2012, 09:21 PM   #1069
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Sounds like horn system!?

Boom rocking ? Negatively???
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Old 11th September 2012, 09:24 PM   #1070
Salas is offline Salas  Greece
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Quote:
Originally Posted by Joachim Gerhard View Post
A cap multiplier was madatory on my build. Otherwise there was a small hum. I think that behavior is typical for class A amps with low open loop gain. See the JLH 10W.
If it will do that I will multiply the snap-in F&T with a cheap slug then, TIP3055 maybe. So it will not oscillate or something. Yes?
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