question about changing tone of cha47
Apr 21, 2002 at 12:43 PM Thread Starter Post #1 of 3

Ken

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i have a cha47 amp. is there a way to change the sound , iwould like to reduce top end brightness a little
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Apr 25, 2002 at 5:27 AM Post #2 of 3

BoyElroy

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Hi Ken,

I had a similar issue with my cha47 and I just replaced my 10k pot with a 100k pot. It definitely softened the sound, but I'm not sure how much I'm losing off the top end. Who knows, maybe I'm rolling off at something like 10kHz-15kHz...I wonder if anyone here knows how to calculate someting like that?
 
Apr 26, 2002 at 1:15 AM Post #3 of 3

rickcr42

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so what op-amps are you presently using ?
Caps ?
Resistors ?
The active stage has the most influence on the sound , followed by passive parts.You can "voice" an amp according to what you choose .Same circuit , different sound
 

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