I've got several pairs of tubes I roll from time to time. Does anyone what the difference is between the 627s and the 637s?
Regards, Sam
Regards, Sam
Jolida JD9 Opamps
I've been following all the info about different opamps available for this unit and after awhile it all becomes a bit confusing. I've had my JD9 for a year now and I'm quite pleased with it but would also like to improve it if possible. I'm not handy with a soldering iron so changing the opamps would seem to be the route for me. I'm using a Denon DL-304 LOMC with very low output (.18mv) so I would like to keep the noise floor as low as possible. Could someone give me guidance as to which opamps would be best to use in my setup? Or should I just leave it be and enjoy it as is?
Regards, Sam
Regards, Sam
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- 7 posts total
Slovell, I tried the 627s and found the 637s to be slightly more extended at both ends of the frequency spectrum, which was to my taste. Tonally they were very similar in my system. Johnnyb53, There are six opamps total in mine, although I've heard other versions of the JD9 may have a different arrangement. David |
I got mine as samples directly from TI, but here's one place to buy them at retail: http://parts.digikey.com/1/parts/464939-ic-opamp-gp-80mhz-sgl-hs-8-dip-opa637bp.html There are many others; just Google "OPA637BP". David |
- 7 posts total