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Old 11th November 2010, 06:37 PM   #1
mike49504 is offline mike49504  United States
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Join Date: Sep 2006
Default MA AUDIO HK2000D

This amp uses FQP19N20'S and FQP12P20's for outputs.

Is there a good sub for the FQP19N20'S ??
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Old 11th November 2010, 07:04 PM   #2
Perry Babin is offline Perry Babin  United States
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Join Date: Nov 2003
Location: Louisiana
Search result for: 6702203 - Future Electronics
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Old 22nd July 2018, 05:30 AM   #3
Formas is offline Formas  Jamaica
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Join Date: May 2008
Just sharing a bit of information on my recent findings;
Iíve recently completed a Performance Technique class x with the output stages a bit of similarity with this MA Audio class x, I really didnít checked in detail the of the drive stages of the output fets but the issue was FQP12P20 vs IRF9640 & (FQP19N20 vs IRF640).

Iíve noticed the IRF9640 was used with the FQP19N20 but both uses different value gate resistors unlike the other amp that uses the FQP12P20 with the FQP19N20 (Performance Technique) with same value gate resistors......
Long and short, could the 12P20ís be sub by the 9640ís? By just altering the gate resistors value or they are totally (major) different in specs?
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