Acoustat Answer Man - just joined this board to ask you a question. I have a pair of Spectra 11's powered by a B&K AVR-307. Sound great, like a hot knife cutting through butter.
My issue is that one speaker is definitely louder than the other. I have tried swapping channels and amps, but the issue is the same. Feels like something is missing in the sound. Is what I am describing a familiar issue? I read this thread here and it sounded similar:
https://www.diyaudio.com/community/...rostat-damp-and-subwoofer-replacement.334555/
A local speaker repair guru says they can take a look, but are less familiar with electrostatics. Is there a place in the circuity you might recommend them looking? I have another pro-audio guy coming to take a look. Trying to get these fixed in Denver, CO.
My issue is that one speaker is definitely louder than the other. I have tried swapping channels and amps, but the issue is the same. Feels like something is missing in the sound. Is what I am describing a familiar issue? I read this thread here and it sounded similar:
https://www.diyaudio.com/community/...rostat-damp-and-subwoofer-replacement.334555/
A local speaker repair guru says they can take a look, but are less familiar with electrostatics. Is there a place in the circuity you might recommend them looking? I have another pro-audio guy coming to take a look. Trying to get these fixed in Denver, CO.
I suspect you have unequal bias voltage on the two speakers. The referenced thread, and its attached documents, would be a good starting point. Bias voltage must be equal for the two speakers to play equally. For a hybrid speaker like the Spectra 11, the bias voltage can also be adjusted to slightly modify the balance between ESL and woofer, as the bias voltage has no effect on the woofers' behavior.
Copy that. Sounds like this a matter of performing the ultrasonic bias bias supply modification to both speakers and then calibrating the the trimmer potentiometer?
I am trying have a basic understanding to share with a tech for reparing. I am based in Denver, CO. Any referrals are appreciated.
I am trying have a basic understanding to share with a tech for reparing. I am based in Denver, CO. Any referrals are appreciated.