I just received my 2nd set of BJC's analog IC's. My first pair was used to replace the monster cable m950i's that I was using between my preamp and amp. This made a noticeable improvement in the high frequency's with more forward treble and increased resolution and detail. Overall it improved the sound.

I just placed the 2nd pair between my DAC and preamp replacing my monster m1000i's and the results were not so good. After about 2hours of listening the music appears more grainy and busy for lack of a better term. The m1000's gave a more liquid, warmer sound with better bass.

I'll give the BJC's another 20hrs of break in and see if the sound improves and post my impressions then. But I have a feeling that I will end up using the combo of the m1000's and BJC instead of 2 sets of the BJC's.