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Stax SRM-Xh Review (Electrostatic Headphone Amp)

amadeuswus

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Yes, with XLR. It works great.

Your volume pot is logarithmic, won’t be surprised if you are outputting way less than 5 watts at 9’oclock setting

The bias voltage goes into the membrane the signal voltage goes into the plates. Higher bias voltage higher sensitivity.
I have a SRD-7 (original version, not the "Pro" model) and I sometimes use it to drive Lambda Pros since the connectors are compatible. It sounds fine to me that way, but am I sacrificing anything other than ultimate output level? Thanks for your thoughts.
 

brimble

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the_brunx

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I have a SRD-7 (original version, not the "Pro" model) and I sometimes use it to drive Lambda Pros since the connectors are compatible. It sounds fine to me that way, but am I sacrificing anything other than ultimate output level? Thanks for your thoughts.
I think I once heard a louder ground noise or hum level, cant remember on a normal bias transformer I am guessing since you have to amplify more to get the same loudness compared to pro bias. So I am guessing the SNR level and SINAD can also be different compared with pro bias depending on the characteristic curves of the amp being used and maybe also other factors. but I am interested to know the definitive answer myself.
 
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