directed d2400 goes to protection with subsonic Filter off - diyAudio
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Old 22nd March 2012, 05:40 PM   #1
ivkata is offline ivkata  United States
diyAudio Member
Join Date: Dec 2010
Arrow directed d2400 goes to protection with subsonic Filter off

I'm looking thru amps i have here and this one does strange thinks
-amp will go to protection if i turn the subsonic off
-when in master mode audio output is low and if i adjust the gain up or down i can hear poping in the speaker
-when i slave mode the audio is louder but there is popping in the woofers when bass is hitting

i have a good rail voltage and all op amps have both positive and negative voltage
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Old 22nd March 2012, 09:34 PM   #2
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
Look at the DC offset of all of the op-amps. One (or more) likely have excessive offset.
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