6 channel pot

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Hi,
A disadvantage of ganged pots is imbalance at high attenuation.
Some manufacturers try to select or trim tracks on their pots to improve their tracking.
BUT with multi-channel pots this may be either expensive or impossible.
The effect is that signals to different channels will sound off centre or in the wrong location at lower volumes and may change position as you adjust volume.
 
Hi,

you could also use a 6-channel microcontroller based relay attenuator which is controlled by a simple mono pot attached to the internal A/D of the microcontroller if you want to have a pot to control it. Or you can use two pushbuttons (up/down) and then can use a remote control for setting the volume. Unfortunately this solution is more expensive :D

Jochen
 
Hi,
12 steps starting at 0db in 6db increments ends up at -66db, or you can make uneven steps starting at -30db or whatever, or gang two switches in series, 12db increments followed by 1db increments now we have -143db in 1db steps.
Just design it to suit your preferences.
 
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