Well, everything is working with the exception of the rca outputs of the Benchmark DAC. It seems the power amps and the Clarinet were ok...the DAC rca outputs were not working . I think thats what blew in the first place. I used the xlr's from the DAC and the power amps worked. I hooked up my laptop to the Clarinet ...it work. I am very sorry for all the problems. I have been using the Clarinet on different amps and speakers...it sounds good , but it seems to bright. This may be the Vishays'...it sounded much different than the Cornet through my other preamp. Thank you very much. Allan