Darkvoice 336 + 336i Tuberolling [ tubes ] - Page 13

ic I will take that into consideration when I have more money, so many tubes to buy/try. I agree the darkvoice is awesome already, and the tube rolling just makes it that much better. I got started rolling tubes on the Little Dot 2++ when I had it and while the selection was limited I saw how fun/easy it was. The darkvoice has a much better selection and the difference is more pronounced, too much fun. (the little dot was more subtle when I swapped tubes)

I have had my 336i for a couple of days now and I am impressed! The K701's have finally come alive.

The original Chinese tubes produced a loud hum in the right channel. Apparently this is a problem others have had. The Sylvania 6SN7GT and the Svetlana 6H13C I had already ordered (thanks to this thread) were at hand, so I lost no time swapping them in:








Initially there was a hum with the volume knob past 12 o'clock but, a few hours later, it is completely gone. (I have never needed to set the volume past 10 o'clock with 0404 USB's line out, in any case.)

This is my first high fidelity setup in general but, for what it is worth, my impression of these tubes with the 336i is completely positive. The difference from the stock tubes is quite apparent.

seems like there are many many happy Darkvoice owners out there!

So I just received my used Ken Rad VT-231 and theres a slight hum. Now to figure out how to do the no-hum mod o_O

My 701's arrived this week and now I'm suffering the painfull waiting game for my DV and tubes. At least the DV shipped last night!

Sadly the Audigy 2 PEX, just can't drive these phones properly.

I wonder where I can buy an adapter so I can use 7n7 tubes on the Darkvoice 336i I have ordered? They must ship international since i am living in Norway. And which of the 7n7 should I look for?

Single Power Audio is the company that made the one that I used and they do ship world-wide. They have a new model of 7N7 adapter that is pretty slick. With the old model they used an old loctal socket which could be noisy with some tubes. The new adapters use a custom socket which make a much better connection. You can reach them at sales@singlepower.com .

Here is a pic of it in my 336FM:


Happy Listening!

Thank you very much for a fast reply! At ebay I find there is a big competition to get the 6sn7 tubes, so when I saw one mention that you can use 7n7 with an adapter i thought this could be a solution. I will contact Singlepower now.

No problem. You might have to be patient with Single Power Audio as they get a lot of email. Some people say the best way to get in touch with them is by phone so if you have Skype or some other way of making cheap long distance calls, that might be the best way. Their phone number is 303 523-0581. They do have a web site at www.singlepower.com but it is very out of date and doesn't list any of their tube adapters. The Single Power tube rolling threads in this forum have some information on them, however.

Happy Listening!

Thanks again!

I want to collect a lot of different tubes to my Darkvoice. I see that there is a lot of tubes at ebay. But I feel that it is more trustworthy to buy from people here on head-Fi. And tomorrow I have been registered here for a month so I guess i can put up an advertisement after tubes in that section then. These tubes are there a big difference in how long time they will last. Will they last for thousands of hours. everey night I fall asleep with my headphones on, and I will not be able to turn the amplifier off before the morning after.

I recently purchased a 6sn7GT 'bad boy' from brent jessie but it seems to be having some problems...I have a loud hum on the right channel, and extremely sensitive microphonics.

1) is this a bad tube, 2) do I need to leave it on for much longer (I've had it running for 5 hours), or 3) does this tube just not work?

can someone let me know if they've got an 6sn7gts from brent jessie's site? Any other models to recommend that had no hum?

I'd also like to add that I'm having an amazing experience with the Sylvania 6AS7G with the chinese 6SN7GT. http://www.hificollective.co.uk/valv...mp_valves.html. I must say i think with this amp changing the back tube gives your more distinctive results than the front..

regardless, if only that 'bad boy' would mend his ways...(sorry I couldn't help it)


thanks loads

ps: i have the hum mod already

Tube rolling with the 336i

I've done quite a bit of tube rolling over the past couple of months since I bought my 336i, using this thread as a guide. I've purchased both from established tube dealers and from E-bay. I have had good experiences with both although deals do crop up on E-bay. I had bought a Ken-Rad VT-231 from E-Bay and it emitted a hum. I thought maybe I had been stuck with a bad tube. I tried another Ken-Rad that I purchased from Parts Connexion with the same results. I know others have commented on this phenomenon so this might not be a good option unless the 'anti-hum' mod fixes it. (If it does, then I can sell the Ken Rad's to interested parties)

So far my favorite front tubes are== Sylvania GSN7GTA w chrome top and
Tung Sol GSN7GTB, chrome top as well.

For the rears my hands down favorite is a GE 6AS7GA that I picked up on E-Bay for $5. Either of these fronts with this rear tube presents an awesome soundstage with great punch, dynamics and deep bass.

Have fun rolling

RCA's all round for me ! RCA 6SN7GTB up front and RCA 6AS7G in the rear. My old late 1980's INXS CDs sound like they were re-recorded yesterday with this combo on the 336i

Hmmmm, I see from the above photos that abs@nilenet.com is the lucky person who acquired Fitz's DarkVoice 336 !