Probably nothing. The RK09 is probably better than other pots for the price, but still I would not put anything like that into an amp... and I don't think I would like to find the RK09 in a commercial unit - even if I had only pad a couple of hundred dollers for it.
I used one in a small portable headphone amp project. Next time I'll compromise size and use a digital pot from Maxim.. the tracking differences between the two channels very simply outrageous!
And then again - it is a cheap pot!
I used one in a small portable headphone amp project. Next time I'll compromise size and use a digital pot from Maxim.. the tracking differences between the two channels very simply outrageous!
And then again - it is a cheap pot!
"Sound better"... I objected to the use of RK09 only due to tracking imperfertions... and tracking imperfections - I guess - is a great deal of the reason why people bother buy RK27 or RK40 (maybe even RK50).
Regarding sound quality.. you can always use a series resistor and a cheap pot for shunting a part of the signal to ground. I suppose we agree that it would be the optimal pot configuration, since no questionable pot is present directly in the signal path, thus you can easily use a cheap pot if configured correctly. But the tracking issue is still present...
Regarding sound quality.. you can always use a series resistor and a cheap pot for shunting a part of the signal to ground. I suppose we agree that it would be the optimal pot configuration, since no questionable pot is present directly in the signal path, thus you can easily use a cheap pot if configured correctly. But the tracking issue is still present...
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