sound quality of relay volume controls VS resistive stepped attenuators

jarthel · 10th October 2006, 01:59 PM

has anyone tried both solutions? or maybe know of a site that has tried both?

since I'm not familiar with relay attenuators, I was thinking that maybe the signal passes through all that semiconductors + relay.

thank you.

cliffforrest · 10th October 2006, 02:40 PM

Relay attenuators invariably use miniature reed relays. The contacts are normally gold/rhodium plated with a bulk resistance of less than 30mR.

Hard to beat that with any other switch, especially after 100,000,000 operations - and no semicinductors are involved at all.

Cliff
Big reed-relay fan.

10th October 2006, 01:59 PM	#1
jarthel diyAudio Member Join Date: Jan 2002 Location: somewhere in Australia	sound quality of relay volume controls VS resistive stepped attenuators has anyone tried both solutions? or maybe know of a site that has tried both? since I'm not familiar with relay attenuators, I was thinking that maybe the signal passes through all that semiconductors + relay. thank you.

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10th October 2006, 02:40 PM	#2
cliffforrest diyAudio Member Join Date: Sep 2004 Location: UK	Relay attenuators invariably use miniature reed relays. The contacts are normally gold/rhodium plated with a bulk resistance of less than 30mR. Hard to beat that with any other switch, especially after 100,000,000 operations - and no semicinductors are involved at all. Cliff Big reed-relay fan.

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