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69.136.121.232
I've had this CDP for almost 25 years and it's a great sounding player, however I'm thinking of changing out the tubes which I think are 6922s?
I've never changed tubes before so this would be the first time.
What I'd like are recommendations, other than the stock ones,that might have a warmer sound as I'm using a blue circle 1022 solid-state amp.
Perhaps part of the problem is my hearing degradation in the higher frequencies as I am just around the corner from turning 73!
I'm assuming there's also some tube leakage for tubes this old.
Thanks
Follow Ups:
I have a AH! Tjoeb CD player as well, but it's the 4000 model ( looks the same ). Have you tried the Russian 6n1p, with or without the rocket logo? They are basically a 6922/6dJ8 but a very clean sounding with a nice tone, IMO. They're also much cheaper than NOS tubes! 1 thing i'm not too fond of is the AH! Tjoeb's high output & would like to have the output level lowered. It's an easy mod, but i don't want to do it myself.
Really good suggestions posted.
Have you ever removed and cleaned the existing tube pins and sockets? Sometimes that will help restore back the sound you remember.
Jonesy
"I know just enough to get into trouble. But not enough to get out of it."
FWIW - I've found that the Genalex 6922 gold pin tubes are significantly warmer than most of the other current production tubes. I'm by no means the only one who has expressed that opinion.
The output buffer stage in a CD player has a minimal effect on the overall tone but i suspect the Genalex 6922 might be worth a shot. They'll likely be less expensive that NOS 6922s as well.
Finally, I'm 73 myself - and I can vouch for the loss of highs in my hearing!
Jim, so glad to see your post!! Hope all is well.
Thanks for your kind words! I've been here all along and I still am - just not here as many hours as I used to be.
I try to help whenever I can, so I hope my post is helpful to the gentleman who started this thread.
Also, one thing I neglected to mention - the gold plating on tube pins will often help the pins fit more snugly and make better contact in the socket(s) on gear that has been in use for a while like his.
I can unreservedly recommend the JJ E88CC (6922).
You can spend big bucks on NOS 6922s, but there's no need. The JJ sounds so good it replaced all the Telefunkens and Amperex in my system. They're inexpensive as well. Figure on @ $60 - $70 per pair.
The tubes in the AH! are merely a buffer and as such they do NO amplification. So big money spent on top-shelf testing tubes is probably a waste of money.
And yes, that was a great player. I had one for over ten years. I gave it to a friend after I bought a Primaluna. That friend is still using and enjoying it.
Sondek,
Thank you for your reply.
Having never bought tubes before, what/who is a good source to purchase from?
Regards,
Bob
I have been very pleased with the service I've received at The Tube Depot. There are certainly other vendors, but have been dealing with TD for several years and never disappointed.FWIW, I got significant improvements from my AH! with a few simple tweaks. Most of that from damping the 'rings like a damned bell' sheet metal cover. Some Dynamat, or better yet, some of those viscoelastic damping sheets they used to sell at Music Direct. Some Blu Tack on the bottom (under side) of the CD tray to further damp internal vibrations - just a couple of little bits will do the trick. That plastic CD tray vibrates and rattles like crazy and the BluTack kills all those resonances. Just be careful not to put any where it might interfere with open/close of the drawer. Also, trash that POS captive power cord. Some better wire and a decent AC connector will do wonders. Finally, an upgrade to the internal fuse helps a bunch. I used a run of the mill HiFi Tuning fuse on mine - I've found those fancy fuses are more effective with digital gear than analog. Any one of these tweaks will advance the performance, but when they're all implemented together it lifts that humble player into another realm.
That's alls I got. Hope you find something in this you can use.
https://www.musicdirect.com/equipment/accessories/audio-additives-3m-damping-sheet-ea/
Edits: 12/06/24 12/06/24
Thanks again! When I have some free time,I'll open it up and work on the tweaks and also check the link you sent.
Regards,
Bob
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