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1st August 2011, 01:30 AM
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#1 |
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diyAudio Member
Join Date: Jul 2005
Location: milan
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Hybrid never see
this project is best my solution
and sounds very natural
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1st August 2011, 02:28 AM
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#2 |
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diyAudio Member
Join Date: Sep 2006
Location: Pleasant Hill, CA
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Are you sure that fried by DC speakers sound "the best"?
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1st August 2011, 10:12 AM
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#4 |
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diyAudio Member
Join Date: Jul 2005
Location: milan
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DC speaker
is less of 200mV with Suorce resistor 440 Ohm (220R+220R) @18V
also you have double NFB as DC servo 
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1st August 2011, 12:08 PM
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#6 |
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diyAudio Member
Join Date: Jul 2005
Location: milan
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yes need an input resistor
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1st August 2011, 03:55 PM
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#7 | |
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diyAudio Member
Join Date: Sep 2006
Location: Pleasant Hill, CA
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Quote:
As you stated in your first post, "sounds very natural" 
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1st August 2011, 06:03 PM
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#8 |
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diyAudio Member
Join Date: Jul 2005
Location: milan
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YES IT'S TRUE
this OS stage is so "light" and fast
that sounds like an OTL amplifier and also strange... with 1,135 Vbias never have hotting time 
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2nd August 2011, 11:54 AM
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#9 |
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diyAudio Member
Join Date: Jul 2005
Location: milan
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More power?
K170 X 3
MJ350 ZENER 2,7V 2SA1940
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2nd August 2011, 04:50 PM
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#10 |
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diyAudio Member
Join Date: Sep 2006
Location: Pleasant Hill, CA
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Now it looks better. But for efficiency I would recommend to power driver from higher voltages than output followers.
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