Ok, long story but I sold my Odyssey monoblocks to a really nice guy down in Phoenix. He is blown away by their performance over his old 20yr old NAD amps they replaced.
However, there is one small issue, he is hearing what he describes has a hissing sound coming from both speakers. He says it is easily audible when seated, normally when he has the music cranked up a bit. He notices it during the background of vocals, in what should be quiet passages or in between notes?
Some testign I had him do as follows:
No hiss with only the amps on...
No hiss with the amps on and Marantz receiver on with volume cranked.
No hiss with Amps on, Marantz on w/volume cranked, Oppo powered on with CD in pause mode
However, when playing a CD is when he hears the hissing sound during soft passages and in between notes.
Could this be the recording? or just a power hiss he is hearing?
