wfowenmd

Responses from wfowenmd

Sophia Electric tube quality
Despite your recommendation of not to tap the tube, well constructed tubes do not ring when tapped.  
Shakti Hallograph Sound Field Optimizer
I've now tried them in a sound treated room and did not hear a difference. My uneducated assessment is that they function as a front wall diffusor, so of limited impact in a treated room. Consider using the $ for a few sound panels, e.g., GIK bass... 
Sophia Electric 91-01 and 91-5 300B
As described by djdonis, Sophia has earned its challenged reputation for quality and customer service. 
Shakti Hallograph Sound Field Optimizer
I have a pair that I used in a sound treated room of atypical configuration with Avantgarde Trios. They made an audible improvement. I relocated them to a second home with a medium sized traditional rectangular shape and highly modified Klipsch Be... 
Sophia Electric 91-01 and 91-5 300B
I have had several Sophia's with a range of speakers -- most recently Avantgarde Trios. They sound good, solid middle of the pack on their best day. The parts are cheap; the units are not well-constructed; their tubes are low quality but sound gre... 
Anyone have issues dealing with Sophia Electric ?
My experience matches your. My first pair of Royal Princess 300B tubes had a tube failure in less than 3 months of light use. The replacement pair were extremely microphonic. They rang like bells when tapped lightly with my fingernail. I was told ...