mcintosh c42 vs c46 experience?

That sounded funny. What do other people prefer, harsh sound?

I have a C42 and think it's a wonderful preamp, but it is not the last word in transparency and detail. At its worst it masks subtle differences in recordings. For some that's a big problem. For others the rich tonality, flexible input/outputs, 8 band tone controls and multiple tape loops compensate for the slight sonic deficiencies.

someone have heard the c42 and c46? if yes can you give me the difference