As sent to Mojo in a direct e mail and his suggestion of posting this....
Mojo,
I received my package of newly made custom cables today. I had been using
my Y connector balanced XLR interconnects which were splitting the output
L+R from the AVM60 prepro to the Parasound A51 5 channel amp for the bi-amp
set up I was doing, only I left one leg un-plugged.
I had Blue Jeans Cable make me up some new Belden 6 foot single line
balanced XLR cable in red so that they are easy to find vs. all of the black
lines. As you know, the Y connector split cable will reduce the signal by
3db, which seems easy enough to make up for by adjusting the output
calibration of the preamp by 3db boost. Well let me just say that I am
blown away! The difference in signal, which only being 3db, is truly huge.
I think that it's not a simple increase in signal by 3db, but it's really
the relationship to the noise floor. But, what I am hearing is an immense
increase in the Lows and Mids, so much so I had to recalibrate the output of
the preamp by 3 db to equal what I had with the split Y cable, which cut
down how hot the signal was, but it is still amazing at how much more
low/mid signal I have. I never expected this. I think that with the
reduced level via calibration, I still retain a better s/n ratio and better
transfer of frequency range.
Then after listening and recalibrating, I installed the new speaker cables
made from Canare 4S11 quad 14 gage twisted pairs. Holy moly again. The
vocals and high end just popped! As we talked about the other day, the
twisted pair 14 gage lines tied together equals 11 gage which is marginally
larger than the 12 gage I was using, but more so, as you pointed out the
voltage delivery will increase and this along with the twisted pairs is
definitely doing something. I have never been a believer of hearing
differences in speaker cables, but this combination of twisted pairs,
slightly heavier effective gage and the dual lines increasing voltage have
certainly done something....
Slim
