• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required as is 20 years of participation in forums (not all true). Come here to have fun, be ready to be teased and not take online life too seriously. We now measure and review equipment for free! Click here for details.

Stax SRM-Xh Review (Electrostatic Headphone Amp)

amadeuswus

Active Member
Forum Donor
Joined
Jul 8, 2019
Messages
185
Likes
173
Location
Massachusetts
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

Active Member
Forum Donor
Joined
Oct 18, 2020
Messages
159
Likes
194
Location
Australia

the_brunx

Active Member
Joined
Apr 7, 2020
Messages
190
Likes
426
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.
 
Last edited:
Top Bottom