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SDS, Supra, MPX tuberolling, the new global, improved thread - Page 24

post #346 of 780
Quote:
Originally Posted by mateo05 View Post
Correct me if I'm wrong, but the main point of the SE is to use different, more powerful tubes than the 6SN7 for output. So, you begin limited to rolling the gain spot for the most significant changes.

Also, 7N7s and 12SN7s provide cheaper alternatives to 6SN7s. Although I've been finding more and more of my 12SN7 stash to be noisy ...
Clean those 12sn7's tube pins by scrubbing them with a soft wire brush. If that doesnt work give the a shot of a high temperature lubricant like de-oxit. Most of the 12sn7gt's are over 50 years old. Give them a good cleaning and they will likely be fine.
post #347 of 780
Quote:
Originally Posted by augustwest View Post
Last night I tried a new tube combination that I had never tried before. It consisted of a 5965 tube in the driver position, using the ECC adapter. In the outputs I had the 6bl7’s run at the 300-325 volt output setting. This turned out to be a rewarding tube set. With my Senn hd600’s it created a very dynamic, punchy sound that was a pleasure to listen to. In contrast with the 12au7 as a drive tube, it had somewhat more body while retaining a dynamic detailed sound, the high end wasn’t as extended, and it had less of an airy quality. The bass end was respectable and satisfying.

With these qualities I though that it might be a good tube set for the Grados, and I was right. What seemed to work so well with the 5965 tube and Grados is the less extended highs. For me this is where many of the 9 pin miniature tube and the Grados fail as a combination. The Grados with their unrestrained high end and the 9 pin miniature tubes with their crystalline detail and clarity sometimes just seems to be too much.

The 5965 tube was quite reasonably priced too. At only $2.50, shipped it is a real winner, especially when paired with the 6bl7’s.

Happy listening!

- augustwest
I finally got around to using the 5965's tonight. I used a RCA blackplate version in my SLAM PPX3. Once again, we have another winner. I think this tube works especially well in the SLAM PPX3. The tube didnt seem to have as much gain as I expected and I barely needed to use the texture control to reduce the gain. This RCA was very refined .... almost to refined for senn 600's. I switched to my senn 595's and .... great match. The Sylvania 5965 is going in Wednesday.
post #348 of 780
I've now ordered:-

2 x 2c51 adaptors
2 x Bendix tubes for above
2 x Syl Gold Brand for above
2 x Tungsol for above

The only question is can I afford all these amps,adaptors and tubes
post #349 of 780
Quote:
Originally Posted by Rob N View Post
I've now ordered:-

2 x 2c51 adaptors
2 x Bendix tubes for above
2 x Syl Gold Brand for above
2 x Tungsol for above

The only question is can I afford all these amps,adaptors and tubes
The Bendix and Syl Golds must have cost you a pretty penny.
post #350 of 780
At $60-$200 a shot for a single high-quality 6SN7, it would be foolish to get a pair of really expensive ones if $20 6SN7s tubes sound just as good in the output stage as the $200 ones.


Don't be afraid to try out the less expensive vintage 6sn7 tubes. Like the GTA/GTB's. They can often be very rewarding and cost a fraction of the more well known tubes. Also don't shy away from some of the "off brands", like Rogers, Channel Master, Baldwin, etc. They are mainly "house" brands made for these companies by the major manufactures and can provide outstanding sound in the right combinations. Just because tube sellers hang a fancy price on a particular tube that they have been talking up, doesn't mean it will be the best in your system. In fact some of the the more lowly tubes in the right combination may be just the thing for the sound you are seeking. . . . . . So my point is, experimenting is what makes this hobby fun, so don't hesitate to try some "low cost" tubes that are un-charted territory and don't think just because a tube has a $60 - $200 price on it, that it is going to be the best solution.

Just some free advice, happy listening!

- augustwest
post #351 of 780

12B4As as outputs for MPX3 SLAM SE

Do I dare use 12B4As (as output tubes) ? I have heard/seen no reference to them on Singlepower, but this tube is the backbone of some pretty nice sounding cathode follower preamps. I was thinking of possibly using them with a 5751 as an input?
post #352 of 780
Quote:
Originally Posted by Frihed89 View Post
Do I dare use 12B4As (as output tubes) ? I have heard/seen no reference to them on Singlepower, but this tube is the backbone of some pretty nice sounding cathode follower preamps. I was thinking of possibly using them with a 5751 as an input?
In the Singlepower ? A 12b4 is a single triode and has a completely different pinout vs any SP amp. So .... the tube will not work period.
post #353 of 780
Hi I just got a package from Mikhail.

3 addapters Ecc/Ecc2/2c51

8Tubes:....

1 each GE5965,Unknown brand 5965

1:....ECC88

1:....2C51

1:....Raytheon 6414

1:....JAN 12AV7

1:...2 unknown seem to be extra no mention of them on the invoice?

I asume they are all for me to try as gain tubes because he only sent me one addapter each.

Which tubes go with what adaptor I can possably figure the 2C51 adapter goes with the 2C51 tube? but after that???

PS, $473.00 for tubes and addapters Ouch!
post #354 of 780
Quote:
Originally Posted by markmaxx View Post
......
Ecc type 1: 6414, 12av7, 5965
Ecc type 2: ecc88
2c51: 2c51
post #355 of 780
Quote:
Originally Posted by PFKMan23 View Post
Ecc type 1: 6414, 12av7, 5965
Ecc type 2: ecc88
2c51: 2c51
Thank You
post #356 of 780
Quote:
Originally Posted by Rob N View Post
Has anyone tried the 6922/ECC88/6DJ8 in an SP amp yet?
I just got a ECC88 today only listened for a song or two, The 2c51 is so amazing for such a small tube it a huge soundstage with K340s modded by headphile.
post #357 of 780
Quote:
Originally Posted by markmaxx View Post
I just got a ECC88 today only listened for a song or two, The 2c51 is so amazing for such a small tube it a huge soundstage with K340s modded by headphile.
Mikhail sent me a 2C51 adapter and tube to try in the gain postion, and I am also blown away. I don't recall reading much about this tube yet (maybe I missed it with all these tube designations floating around), but paired with the 5687's in the gain positon on my Supra, it sounds incredible. Could be a little bit of a premature judgment, as I have only listened to a few CD's, but so far it sounds really, really good. More bass than I have heard through the K701's thus far, really huge soundstage, and just makes your toes lap and your liver quiver on a whole lot of songs. Man, all this tube swapping and all these choices reminds me of being a kid in a candy store again.
post #358 of 780
Quote:
Originally Posted by PhilS View Post
Mikhail sent me a 2C51 adapter and tube to try in the gain postion, and I am also blown away. I don't recall reading much about this tube yet (maybe I missed it with all these tube designations floating around), but paired with the 5687's in the gain positon on my Supra, it sounds incredible. Could be a little bit of a premature judgment, as I have only listened to a few CD's, but so far it sounds really, really good. More bass than I have heard through the K701's thus far, really huge soundstage, and just makes your toes lap and your liver quiver on a whole lot of songs. Man, all this tube swapping and all these choices reminds me of being a kid in a candy store again.
Same here like a kid in the candy store. Mikhail sent me 3 addapters and 8 new gain tubes, with a new ballanced amp on the way this is getting to the point I need to take notes.(too many combos)

Have you tried the 12av7 yet? I think with limited listening It is the most slam-in tube in my rig so far! (HD650/K340) It offers a great clean micro detailed sound, a ton of slam when the music asks for it and a great sence of every thing being in the right place:.. "Equilization wise".
I give it a must have in everyones tube collection with a MPX3.
post #359 of 780
Quote:
Originally Posted by markmaxx View Post

Have you tried the 12av7 yet? I think with limited listening It is the most slam-in tube in my rig so far! (HD650/K340) It offers a great clean micro detailed sound, a ton of slam when the music asks for it and a great sence of every thing being in the right place:.. "Equilization wise".
I give it a must have in everyones tube collection with a MPX3.
I did try an RCA 12av7 with the K701's and it sounded a little bit lacking in the bottom end to me, like it had no depth in the lower ranges. But I only had one, so it could be that particular tube. Also, the 12av7 might be just right with the HD650 (I haven't tried this yet, but it's on my list of the 500 various combinations I need to try).

Anyway, with the K701's, I like the sound of the Tung Sol 12au7, which has less gain, bettter than the 12av7. But again, I'm not sure how much of this judgment is brand-dependent -- or headphones dependent.
post #360 of 780
Quote:
Originally Posted by PhilS View Post
I did try an RCA 12av7 with the K701's and it sounded a little bit lacking in the bottom end to me, like it had no depth in the lower ranges. But I only had one, so it could be that particular tube. Also, the 12av7 might be just right with the HD650 (I haven't tried this yet, but it's on my list of the 500 various combinations I need to try).

Anyway, with the K701's, I like the sound of the Tung Sol 12au7, which has less gain, bettter than the 12av7. But again, I'm not sure how much of this judgment is brand-dependent -- or headphones dependent.
I really like the RCA 12AV7 with senn 595 or 600's. The RCA 5965 is very good with senns too. I always liked the 701 with a 14n7 tall bottle sylvania for gain and two tung sol 5687 D getter output tubes.
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