Hi all
I'm building a gainclone (as some already know ) and I was wondering about it's input impedance
I've read several times that a 47k input impedance is the standard.
the gainclone's inpedance is 10k (R1)
with an input pot, it will be paralleled to the input pot
so when the pot is 100% up, impedance is 9.5k
and at 0%: 50k
is this a problem?
is there a way to have a volume pot AND a fixed input impedance?
I'm building a gainclone (as some already know ) and I was wondering about it's input impedance
I've read several times that a 47k input impedance is the standard.
the gainclone's inpedance is 10k (R1)
with an input pot, it will be paralleled to the input pot
so when the pot is 100% up, impedance is 9.5k
and at 0%: 50k
is this a problem?
is there a way to have a volume pot AND a fixed input impedance?
Hi Bricolo,
As long as the source impedance is in the order if 1K (most CD players), I don't see a big problem with the volume control.
Cheers,
Fairly standard..Bricolo said:
I've read several times that a 47k input impedance is the standard.
Depends on the source impedance. The lower it is, the less the problemBricolo said:
the gainclone's inpedance is 10k (R1)
with an input pot, it will be paralleled to the input pot
so when the pot is 100% up, impedance is 9.5kand at 0%: 50k
is this a problem?
Not with a volume pot. You would need a constant impedance (switched) attenuator.Bricolo said:
is there a way to have a volume pot AND a fixed input impedance?
As long as the source impedance is in the order if 1K (most CD players), I don't see a big problem with the volume control.
Cheers,
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