Rameish 0 Report post Posted October 2, 2003 Glued the box! Now that's taking a leaf from Gtado Labs. JT is correct on the one. If there's anything rather unique about the 4556 it's the higher current. Share this post Link to post Share on other sites
N@Z 0 Report post Posted October 2, 2003 Huangyong is sworn to secrecy by Grado Labs! Share this post Link to post Share on other sites
Mackie 0 Report post Posted October 2, 2003 (edited) I hope something removable like silicone glue was used to seal the case. I can imagine the mess if super glue and the likes were used. Edited October 2, 2003 by Mackie Share this post Link to post Share on other sites
Rameish 0 Report post Posted October 2, 2003 He already said the wiring is messy and the joints may need to be resoldered so I'm really curious as to gluing it shut. Now he has to undo it - hopefully without damaging the vinyl covered compressed paper box. Becareful huangyoung, that silver wood grain vinyl cover is not very tough and can rip. It's not as tough as real wood veneer. Share this post Link to post Share on other sites
julery 0 Report post Posted October 2, 2003 Okie guys, at last this DIY Grado amp is completed and in my hands now after much scouting and pestering someone to make me a headamp. Oh yeah, Huangyong is da man. Sound good with Philips 890, oh yeah I listen to mostly smooth Jazz & vocals, and is loving it . I can't describe as an audiophile do, but what I can say is well balance with mixed music & vocal and maybe a bit brighter while listening to jazz instrumentals. Share this post Link to post Share on other sites
julery 0 Report post Posted October 2, 2003 (edited) Okie here a pic Edited October 3, 2003 by julery Share this post Link to post Share on other sites
mychew 0 Report post Posted October 3, 2003 i cant see a pic julery...can u pls take some porn of inside?as i'm did not have the chance to look at it and ppl here would also like to know the opamp number used in that Grado amp. Share this post Link to post Share on other sites
huangyong 0 Report post Posted October 3, 2003 This amp is very source dependant, i connected it to NAD C541 and the sound changes a lot as compare to pcdp. Julery, if you use it with your computer, try to use some equalizer to tame it.Normal soundcard might sound bright. Share this post Link to post Share on other sites
fishball79 0 Report post Posted October 3, 2003 Huangyong, Do you mean this grado amp of yours more source dependant than other amps u tried? Share this post Link to post Share on other sites
julery 0 Report post Posted October 3, 2003 i cant see a pic julery...can u pls take some porn of inside?as i'm did not have the chance to look at it and ppl here would also like to know the opamp number used in that Grado amp. Can't take pron inside, it's sealed-up. The server which I posted the pic is slow, maybe you could copy the link and open a new page from the pic. Share this post Link to post Share on other sites
julery 0 Report post Posted October 3, 2003 This amp is very source dependant, i connected it to NAD C541 and the sound changes a lot as compare to pcdp. Julery, if you use it with your computer, try to use some equalizer to tame it.Normal soundcard might sound bright. Yes, I could feel abit different between your Nad C541 & my com source ( Philips Acoustic Edge Soundcard ). Maybe abit bright, or maybe just my music which are bright in nature. Share this post Link to post Share on other sites
Rameish 0 Report post Posted October 6, 2003 (edited) I don't think you can consider this amp a Grado Clone since the op-amp and the caps are different. I've edited the topic to reflect that. Edited October 6, 2003 by Rameish Share this post Link to post Share on other sites
jtfoo 0 Report post Posted October 6, 2003 I don't think you can consider this amp a Grado Clone since the op-amp and the caps are different. I've edited the topic to reflect that. Agree with Rameish. If you're not using the 4556, then it's too far from being a Grado Ra-1. Share this post Link to post Share on other sites
huangyong 0 Report post Posted October 7, 2003 i am using jr455.just to clarify. Share this post Link to post Share on other sites
Rameish 0 Report post Posted October 7, 2003 Hmm...jr455? What op-amp is that? Who makes them and do you know what the sepcs are? Share this post Link to post Share on other sites