Originally Posted by d-cee
there's a couple of easy mods on here and the DIY forums
do a search, one thread was called "help me get to know my DAC-AH" and the other one was "DAC-AH circuit error: easy fix" or somthing along those lines
plenty of good info that transformed my DAC-AH from good to excellent =D
I'll into it does this second link already have those fixes?
http://pacificvalve.us/LTDACAHM.html
I don't think it does that one just says
"The DAC AH-M1 takes this architecture one step further by
upgrading with the OPA27AM Op Amp for greater detail and clarity. In addition, we
install an op amp socket for future upgrades."
while the most expensive one out of the list says:
http://www.pacificvalve.us/LTDACAHHA.html
"The first thing we did is phase correct
the DAC AH to get more solid
imaging. Then we applied voltage
stabilization to help extend the high
and low frequency extremes and
smooth out the timbre. The following
were also applied:
# 2 caps in critical areas changed to
black Gate non polar
# 2 caps in critical areas changed to
Mcap
# 4 caps changed to WIMA black
boxes
# 2 Caps changed to ELNA SILMIC
# 3 Caps changed to ELNA
STRAGE
# 2 Caps changed to ELNA for
Audio
# Dale resistances throughout in
critical areas
# OPAMP changed to high quality
Burr Brown OPA128JM"