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Old 13th April 2011, 03:33 PM   #31
Londik is offline Londik  Estonia
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Join Date: Jun 2010
Oh that's what this pot does. Yes, by turning the pot I got the offset nicely eliminated, but the noise remains.
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Old 17th April 2011, 12:28 PM   #32
fcruz is offline fcruz  Brazil
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Join Date: Apr 2011
Default bx1500d

for all, for mike49504
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File Type: pdf BX1500D-M.PDF (62.9 KB, 69 views)
File Type: pdf BX1500D-F.PDF (50.9 KB, 58 views)
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Old 17th April 2011, 05:02 PM   #33
ppia600 is offline ppia600  United States
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Location: Louis y ana
Originally Posted by Londik View Post
It is low level, about 800mV peak to peak, but louder than these amps usually are. There is also 1.2V DC offset.
Maybe something to do with the output filter(s)? Many class d amps have this output whine and like Perry said, you can't usually hear it through the woofers + being in the trunk usually eliminates that possibility.
Don't worry... you can always turn the gain down!
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Old 17th April 2011, 10:46 PM   #34
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Location: Louisiana
Do you see excessive noise on the B+ terminal of the amp?
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