DIY HiFi Forum

RE: Ultimate Volume Control

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In Reply to: RE: Ultimate Volume Control posted by aura on September 08, 2009 at 19:32:05

Hello

The UVC uses uses an analogue solid state potentiometer with 127 resistive elements in series so the number of resistive elements depends on the number of steps selected. We may be thinking of series connected resistors on a physical switch and all those solder joints. But this device is an IC and does not have such issues. The miniature size also negates capacitive effects. The device used is the DS1666 as used in some very high end premaplifiers such as Audio Research.

Shunt mode moves the resistive elements of the potentiometer out of the signal path so that only one user selected shunt resistor is in the signal path. This resistor dominates the with its signature sound, be it metal film, tantalum, Vishay nude, whatever sound is preferred.

The control switches are digital encoders without a stop, referenced to the LED display. Just like push buttons, keep pressing up to raise, down to lower.

regards
Brian

DIY - Done Right!

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RE: Ultimate Volume Control - aura 01:37:05 09/15/09 (0)

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