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Rich

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Well, I’m taking my own advice and giving myself an early Christmas present. I decided to upgrade my CD transport. For years I’ve been blown away with the source combination of my PS Audio Perfect Wave Memory Transport paired with the PS Audio DirectStream DAC. Together they comprise one of the finest-sounding CD players I have ever heard, in any system. But the PWMT was older technology, and by all accounts has been completely upstaged by the new DirectStream Memory Transport. According to the designers, and confirmed by user reports, the DSMT takes redbook CD playback to a whole new level. What’s more, is that this Transport also plays SACD’s, sending the DSD layer directly to the DAC via encoded connection, which the PWMT didn’t do. So now I should get even better sound out of all my redbook CDs, as well as get the true fidelity of the DSD layer from all of my many SACDs.

I had put this upgrade off for several reasons. One, I was so happy with the sound I was getting that I had a hard time believing that the improvement would be worth the upgrade cost. Two, the new Transport is a good bit more expensive than the old one and I hadn’t owned the old one for that long. And Three, I have been ripping my collection and was intending to move away from spinning discs as much as possible. But then there was the issue with the SACDs, which require a little more effort and/or expense to rip. Then there were the user reports on the huge jump in quality of playback for standard redbook CDs. And then the last straw . . . a smokin’ hot Black Friday deal on the new player along with good trade-in value for the old player. So I gave in. I shipped my beloved PWT off today and am eagerly awaiting it’s replacement: a sweet new DSMT to pair with my DSDAC. Can’t wait to hear how it sounds!

Now I’ve just got to find a way to convince myself to spend the effort and money to send the Conrad Johnson Premier 140 tube amp back to CJ for the capacitor upgrade. I know I need to do it, and it will be worth it in the long run, but dang is it going to be expensive and a pain in the butt to ship. But that’s a post for another day, I suppose.
 
sweet Rich ! I came ever so close to doing that deal with Wally, but I feel pretty confident I'll be more than happy with my Cary SACD Pro......waiting on the UPS man as I type this !
 
Haha, you’re loss is my gain, Dave. Although I have no doubt you’ll be thrilled with the Cary. I listened to Gordon’s and it sounded superb in his system.
 
Why send the CJ back to CJ? Soldering new caps in a very easy, and if you wouldn't feel comfortable doing it, surely you can find someone who can solder? Just a thought, Rich. Don't forget to turn it off first though, LOL.

Anyway, I just watched all of [video]http://www.psaudio.com/directstream-memory-player/[/video], so I am all clued up. Enjoy the new toy:)
 
Hi Justin! I’ve been wondering what happened to you; haven’t seen you on here in a while. Hope all is well on your side of the pond.

Honestly, I wouldn’t feel comfortable working on the CJ equipment or trust anyone locally. For such an amazing amp, I’m only going to trust CJ to work on it. Wouldn’t even think of doing otherwise.

As for the upgrade, it is from old style electrolytic caps to Teflon caps. I’m not sure which manufacturer they work with, but they specify the design parameters. Here’s some more info from their marketing hype: http://conradjohnson.com/project/c1-capacitor-upgrades/
 
Interesting. Looked at the link. The caps are CJD proprietary, so they would no doubt not sell them to you, but require you to send the unit back.
 
Hi Justin! I’ve been wondering what happened to you; haven’t seen you on here in a while. Hope all is well on your side of the pond.

Honestly, I wouldn’t feel comfortable working on the CJ equipment or trust anyone locally. For such an amazing amp, I’m only going to trust CJ to work on it. Wouldn’t even think of doing otherwise.

As for the upgrade, it is from old style electrolytic caps to Teflon caps. I’m not sure which manufacturer they work with, but they specify the design parameters. Here’s some more info from their marketing hype: http://conradjohnson.com/project/c1-capacitor-upgrades/

I'd be straight in there with the soldering iron! My only experience of Teflon caps is in the output stage of a Lampizator level 4 DAC. I had V-Cap Cutf in one a while back.

I am a bit suspicious of them TBH. They are supposed to take 400-500 hours to break in but I never detected a change - was it too slow to detect I wonder? I am also not sure they are most natural sounding of caps. They seem to have a sort of very clean polished sound to them - literally like what you are listening to has been "cleaned up". It is hard to describe. I'd do some careful reading to see what other CJ users think of the "upgrade".

Other than that yeah all is well over here. Still running Apogees, the most recent change to those was a modified crossover circuit I developed over a few months using cheap parts and a crossover simulator, then finalised using a lot more expensive parts. It has provided a very worthwhile improvement in mid range quality.

I'm not an ML owner anymore so the site just naturally holds less interest I guess.

Bernard - could always use another manufacturer's Teflon caps. I doubt the CJ ones are much better or worse than V-Cap.
 
Justin, I have a lot of faith in CJ’s recommendations and proprietary parts. They have a reputation for absolute quality and it shows in their products. This amp, as well as their SS amp (Premier 350) are almost legendary for their quality of sound. I have Sanders Sound 800 wpc monoblocs sitting unused, and a Pass Labs X350.5 sitting in my secondary system. The CJ Premier 140 just may be the last amp I’ll ever use in my main system. Yeah, I like it that much. I’m not going to risk having anyone else mess with it.

As for user reviews of the Cap upgrade, every one I have read has been positive. Mainly they say that it just improves upon everything the amp already does so well. Also, lots of them mention the long burn-in time. Don’t know how much stock I put in claimed burn-in times of more than a few dozen hours for any component. But whatever. I plan to own this amp for the rest of my life, so what’s a few hundred hours?

Edit: Interesting anecdote — I purchased this amp (along with the Premier 17LS2 preamp, which already had the Teflon Cap upgrade) about 17 years ago. They sold for $7000 apiece, and I got dealer demo units for half price, $3500 each. Right now there is a Premier 140 on the ‘gon (with the Cap upgrade) selling for $5600! Last I heard, the Cap upgrade costs $2300. Which means I could likely get the upgrade and sell the amp for about what I paid for it seventeen years ago plus the cost of the upgrade. How many components could you say that about? Not that I would do that, but it is interesting and shows how these units hold their value (and also how much of a screaming deal I got on my units).
 
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The CJ gear does seem to have been a great buy.

I tend to flick between solid state and valve power amps for a change. However, my 211 monos tend to get used more than the vintage Accuphase M-60 monos (the first Accuphase monoblocks they ever made way back in 1975). I recently switched over to the Accuphase and a change really is as good as a rest. I really like them a lot, and that says quite a bit as I have tried a lot of SS amps on the Apogees including very expensive contemporary ones and these have survived the longest. From 1975 - go figure!:)

I also had some serious KT150 based monos in for over 3 months. Ayon Orthos XS. See pic.

You could really trick the CJs out with an octet of these: http://www.thetubestore.com/Tubes/KT88-Tube-Types/EAT-KT88-Diamond at $4000 with the cap upgrade too. $6000 LOL. The tubes will give you more than the caps IMHO as the EATs are extraordinarily good, assuming they have fixed the filament issue that used to plague the Tesla KT88. If they have, and the sonics remain the same as the Teslas I once owned, you will be amazed how fantastic these valves sound. They were so far ahead of any 6550 or KT88 I ever tried it was absurd.

That's a mega hype, but it is deserved.

Some pics, first off all three sets of monos in one shot.

y4me_hVDAK3D2nBtk7AaDu5Vvt9GHDFhmHWvp99POR-hW1MnWoohOF7fc0iZd5T09RmpYB8n8Ho4XdnarDyjT5Ac8OLN28OVWPrLGJ--CA9Jo5BPXtYCG5HC1FEhlFUBj7KHX-oZgFcMEALWNoxzLdSyPOseSaL_hE0UyDl9ORInY5s8R7R2woPahxlTD3ZRF_5fH3aoNM_NUlAFzb294gUkw


Ayon Orthos (400 Watts in pentode) and Austria Analogue with Amperex 211s (80 Watts nominal, 170 Watts peak).

y4mkPkpNG35C_IgXc_XU1dD8WnzqvZyfKg_38kZaP2d85uLHw0Jw4K_XCEMZXotkrLX0Jq_KBI5vedaBtL4iUxpqawlth_lvS-226FkB_Y6-3EVa3cefYledifIH-eXx4MN1NN5yHQm3mu6tfSwonqMBkl-VhJhgr2JXDtVuwP3DRL26MUXZGytF9wEELWIpEBDW8han3KQJ5uVLRMrKuofNg


Justin - never afraid of a system shot.;):ROFL:
 
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Nice pics, Justin. But I have to say it: that room needs more acoustic treatments! By the way, those accuphase monos have got to be classics. Have you fiddled with their innards any?

Edit: and holy crap, those tube amps are gorgeous! I’m running some Tung-Sol KT-120s in the CJ right now. They sound pretty darn nice, but I would love to hear those diamond 88s.
 
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Nice pics, Justin. But I have to say it: that room needs more acoustic treatments! By the way, those accuphase monos have got to be classics. Have you fiddled with their innards any?

Edit: and holy crap, those tube amps are gorgeous! I’m running some Tung-Sol KT-120s in the CJ right now. They sound pretty darn nice, but I would love to hear those diamond 88s.

The Ayons were decked out with KT150s. There's no scope for rolling there, especially considering the valve count!
That is the trouble with high power KT based amps, really. But the KT150s did sound good, as did the Ayons as a whole.

I'd say the KT120s are likely to be a pretty decent option based on the KT150s. All 20 of them LOL.

The EAT pricing is a shame - a crime against the audiophile for what was once an £80 valve.

Room sounds excellent so no more traps. People get genuinely astonished.

BTW the Accuphase are untouched. If ever an amp needs a cap upgrade in theory this does. Only it doesn't because it sounds absolutely fine. Has huge ELNA reservoir caps in it. They obviously last.
 
Yeah, those Ayons will eat you alive on tube replacement cost. I get that the Accuphase amps sound great (and that’s impressive given their age) but what happens when one of those Caps blows? Will it take out a circuit board with it? That’s one of the reasons I’m hyped to upgrade the CJ. I’ve read that if you wait until one of the electrolytics blow, the repair costs get much, much worse.
 
I'm betting they won't. There's zero sign there is an issue.

Despite that they are still worth more than you'd expect given their age so I might do something about it. Having had a peak around inside everything literally looks like it was made yesterday. They were well made too no question about it.

Getting them out and replaced doesn't look easy access wise. That is why I haven't done it.
 
Mainly they say that it just improves upon everything the amp already does so well. Also, lots of them mention the long burn-in time. Don’t know how much stock I put in claimed burn-in times of more than a few dozen hours for any component. But whatever. I plan to own this amp for the rest of my life, so what’s a few hundred hours?

Hi Rich,

I have read that some CJ owners do not hear the change in sound with CJ's top versus their standard "stock" caps. I find that hard to believe based on my experience with the ET5 pre. To my ear, the difference after 400 - 500 hours of play time was night and day. When I first installed and listened to the new pre with the CJ stock 6922 tube, I was very disappointed in the performance (my Premier 18LS sounded so much better in every way) and would have sold it if I had a buyer. After burn in and some tube rolling, I'm very glad I did not.

But as they say, YMMV.

Enjoy your new transport my friend.

Gordon
 
Hi Rich,

I have read that some CJ owners do not hear the change in sound with CJ's top versus their standard "stock" caps. I find that hard to believe based on my experience with the ET5 pre. To my ear, the difference after 400 - 500 hours of play time was night and day. When I first installed and listened to the new pre with the CJ stock 6922 tube, I was very disappointed in the performance (my Premier 18LS sounded so much better in every way) and would have sold it if I had a buyer. After burn in and some tube rolling, I'm very glad I did not.

But as they say, YMMV.

Enjoy your new transport my friend.

Gordon

I have to admit, Gordon, I didn’t really notice any obvious changes with my Premier 17 LS2 pre (which came with the Teflon caps). But then, I bought it as a dealer demo and have no idea how many hours it had on it when I placed it in my system. Plus, that was at the beginning of my hifi journey and my setup wasn’t the best for critical listening, nor were my ears attuned to the nuances that are so obvious to me now. So the jury is still out on that one, from my personal perspective.

If I do decide to send the Premier 140 off for the Cap upgrade sometime soon, I guess I’ll have to pull the Sanders monoblocs back out to listen to the new disc player for a couple of months. That’s probably a good thing, as I need to get some pictures of them and get them boxed up to sell. Along with the AR Ref 3 and more than a few speakers.
 
400-500 hours with sub-standard sounding caps is possibly going to be a real ****er and require a huge amount of faith.

I hope they sound OK from the word go and just get better and better. Which they might.

Good luck Rich.

If you like the amps as they are you could always use the same caps. But I think the ones you have will prolly last much longer

I remember putting some new caps, 16 of them in an amp, and they sounded dreadful. Wrecked the amp. So in went another 16. ELNA. I like ELNA Silmic caps they were as good as the Rubycons that were their predecessors in that amp. Very reasonably priced, too.
 
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Hi Rich, congrats on the new transport, sure sounds like the ultimate spinning disc player.
 
The Ayons are long gone now. I had the opportunity to get them at a great price, but I still didn't think it worth paying.

I don't really miss them, but I do remember them in a good light. Crazy design really. Absolutely barking. And here's an interesting fact - the 20 KT150s generated a lot less heat than the four 211s in the AA amps!

Looking back at that thread it is a shame Todd left. Used to really enjoy that dude's posts.
 

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