av98m 0 Report post Posted July 13, 2004 (edited) Edited July 26, 2004 by av98m Share this post Link to post Share on other sites
av98m 0 Report post Posted July 13, 2004 (edited) Edited July 26, 2004 by av98m Share this post Link to post Share on other sites
jtfoo 0 Report post Posted July 14, 2004 Are you leaving the 2 huge Nichicon gold tune lying there, or have you secure it with glue? Share this post Link to post Share on other sites
av98m 0 Report post Posted July 15, 2004 (edited) Not glue. Bluetak. Edited July 26, 2004 by av98m Share this post Link to post Share on other sites
av98m 0 Report post Posted July 26, 2004 (edited) 3 different opamps were compared over the last 3 weeks, the stock opa2604s, opa2227ps, and finally opa2134s(incidently NAD uses the 2134 in their later model 542). The opa2227ps came out on top, by a significant margin, and they'll be staying out in the player until my opa627s arrive for the final showdown. replacement caps, opamp sockets and iec mod were all done by Mr Firefox. Edited July 26, 2004 by av98m Share this post Link to post Share on other sites
huangyong 0 Report post Posted July 26, 2004 may i know what are those white round little things on top of the cd pickup. looks like bluetag.. is it?? Share this post Link to post Share on other sites
lekguan 0 Report post Posted July 26, 2004 definitely blutack Share this post Link to post Share on other sites
bpribadi 0 Report post Posted July 27, 2004 Wow, what a mod Share this post Link to post Share on other sites
huangyong 0 Report post Posted July 27, 2004 and what's that for, pickup damping?? Share this post Link to post Share on other sites
huangyong 0 Report post Posted July 27, 2004 (edited) FInally found it. Is this the one?? Damping Edited July 27, 2004 by huangyong Share this post Link to post Share on other sites
av98m 0 Report post Posted July 27, 2004 (edited) The idea was just to dampen the transport by filling up the "waffle" pattern on the transport with bluetak in order to (maybe) reduce vibration, I had spare bluetak lying around. The screws on top of the transport were also tightened. The 2 mods that made the biggest difference were: 1. opamp change to opa2227p (really transformed the sound of the cdp, female vocals sound better than ever before, better decay and string instruments shine when using this opamp.) Give this opamp a try if you're trying to get a warmer more tube-like kinda sound. 2. increasing capacitance of the 2 power caps from 2x puny 1000uf 35v to 2 x 10000uf 56v (improved bass and weight in the sound) 10000uf caps are really way overkill though. It was my idea, I wanted 2 BIG caps. However, YMMV. Edited July 27, 2004 by av98m Share this post Link to post Share on other sites