adhoc 0 Report post Posted July 16, 2003 'A' stands for? Share this post Link to post Share on other sites
ablaze 0 Report post Posted July 16, 2003 from what I understand (bear in mind I may be wrong), chips come in 'A' and 'B' grades, with the B one being better and more expensive. don't think they 'stand' for anything in particular. guys, please correct me if I'm wrong Share this post Link to post Share on other sites
jasonhanjk 0 Report post Posted July 16, 2003 B is US$8 and A for US$3. That is Ad8610 price. Share this post Link to post Share on other sites
erickoh 0 Report post Posted July 17, 2003 cool work ablaze... Are you going to bypass the 3 elyt caps too? And upgrade the power supply caps? Share this post Link to post Share on other sites
Rameish 0 Report post Posted July 17, 2003 I want to learn something too guys, can we make a thread out of this? It sure beats doing a search. I just love you guys Vodka + Tomato Juice + Salt = Bloody Mary Good luck on the soldering. I'm scared for you too. Share this post Link to post Share on other sites
ablaze 0 Report post Posted July 17, 2003 eric, I bypassed the two caps circled in the diagram already. to me that makes a big difference. unveils the highs, which as always, is just what I like what kind of power supply caps should I change to? some advice, since you're now a Revo owner too Rameish, the SMD soldering's all done already. 3 lil SOIC-8 5532s replaced with 3 AD8620s. everything looks good so far. just hope no cold joints pop up in future Share this post Link to post Share on other sites
jasonhanjk 0 Report post Posted July 17, 2003 Try Panasonic FC version. Choose 1200uF on 50V rating, it has very low impedence. $2.50 each. 0.029 ohm I think... Share this post Link to post Share on other sites
ablaze 0 Report post Posted July 17, 2003 got better caps to replace or not? Share this post Link to post Share on other sites
Firefox 0 Report post Posted July 17, 2003 got better caps to replace or not? Considering that they are in the signal path, I suggest Elna Cerafines. Bypass them with your favourite film cap. Share this post Link to post Share on other sites
ablaze 0 Report post Posted July 17, 2003 firefox, hey man. I was talking about the power caps actually. I've actually bypassed the signal caps already. oh yeah, the DC offset is 3mV on left channel. is that ok? Share this post Link to post Share on other sites
jasonhanjk 0 Report post Posted July 17, 2003 (edited) According to Gilmore class A amp, slight increase in DC-offset is ok for high impedence headphone. Since you are getting the Gilmore lite, it will theoratically offset your DC-voltage to +-1mV. Edited July 17, 2003 by jasonhanjk Share this post Link to post Share on other sites
ablaze 0 Report post Posted July 17, 2003 so you're saying, that even if my source has DC offset of 3mV, the gilmore will 'correct' the offset to +-1mV? (theoretically) Share this post Link to post Share on other sites
jasonhanjk 0 Report post Posted July 17, 2003 Yup. Just as long you connect the ground output from the soundcard stereo jack to the Gilmore lite common / ground. Meaning 0V to 0V must be short. Share this post Link to post Share on other sites
ablaze 0 Report post Posted July 17, 2003 thanks jason. what better caps to use for the power supply caps? Share this post Link to post Share on other sites
erickoh 0 Report post Posted July 17, 2003 Hi ablaze, Actually I'm not that kind of tweaks... switching soundcard parts is really like hardcore porn... The most I'll go is maybe blue tack some coins on the sound card to absorb the vibration/resonance (no offence! hehe) But all the best with your hardcore modding... I'll follow your progress with great curiosity... If you burnt your card though, look for me.. I need another digital card.. Share this post Link to post Share on other sites
