Darkvoice 336 + 336i Tuberolling [ tubes ] - Page 14

Just have to say this amp pairs phenomenally with the 701's.

I'm currently running with a JAN 6080WC Sylvania in the back and a Sylvania GTB with red print in the front. The detail is amazing with this combo. The only downside I've found is it's perhaps a bit to revealing with music that incorporates distortion as it reveals it in all it's distorted glory. I've tried a few combos in the back but so far the Sylvania just knocks the others out for detail and soundstage (RCA and GE).

I've got a few more tubes on the way so we'll see where I end up.

I never really appreciated what tuberolling could do until I bought this sucker.

If you feel a bit adventurous, you should try to do the Fitz hum mod, and get the 6SN7EH. They are really good modern tubes.

Does the Fitz hum mod change any of the other sonic characteristics of this amp?

There's a small increase in gain, but that's all.

New Stock, Russian made TUNG-SOL 6SN7 GTB

According to various tube sites who sell this tube, NY based New Sensor Corp. aquired the right to remanufacture these tubes. They do so in a Russian plant.

They are supposedly the "best 6SN7 currently manufactured" and selling for the bargain price of roughly $15+. This implies they are better than the Electro Harmonix but to me they look very similar, making it seem likely that they also share their tendency to hum in a Darkvoice HPA.

So I searched the relevant threads but could not find anything on this reissued one. Anyone had a chance to assess sound quality etc?

@gjkphd: do you use one of these or is yours NOS?

Hmmm strange. My Fitz hum mod makes everyone sound like Judy Garland, it's really wierd when you listen to Johnny Cash's "Ring Of Fire" with Judy's voice. I just figured that was Fitz' preference for music so he tuned it to sound that way.

Of coarse I jest...The Fitz hum mod has no decernable shortcomming to my ears whatsoever, but it's a fantastic mod to alleviate hum.

I bought some tubes on ebay tonight:

http://cgi.ebay.co.uk:80/ws/eBayISAP...B:EOIBSA:UK:31

This hobby drains the money out of my pocket. Now I have nearly 80 tubes for my Darkvoice.

mine is a NOS Tung-Sol, not the new reissued one

I just got my 336i today and even after just a few hours burn in the amp is extraordinary, I'm getting a full, utterly 'musical' sound with the most incerdible sense of pace and timing out of a totally black silent background. Frankly do i even need to *think* of tuberolling?

Oh and any suggestions for another pair of phones that suit the darkvoice as much as my AKG K340's? I'd like open backed cool and comfortable, I love my AKG's but they dont half make my ears hot...

Cheers all
Graham
UK

have you considered switching out the pads on your K340s? I just replaced mine with some velour pads and they are much cooler. Also, I had a pair of ATH-W1000s that were made to be cooler by simply pealing the pleather coating off... maybe this would work with the K340s?

I'm sure somewhere I saw some replacement pads covered in a knitted fabric which would be a lot cooler, but you think I can find the site again?

You would think the same search would come up with the same results wouldnt you, Where did you get yours?

Cheers
Graham
UK

tube's newbie question

Has anyone tried the tung sol 6sn7 gtb, are they good for general listing for 336i
what is the different between the gt and gtb models
best

From TubeWorld:

(6SN7GT and VT-231 have a 300VDC Max Plate Voltage rating, most are 1940's)

(6SN7GTA is improved, uprated to 7.5 watts plate dissipation, 450VDC Plate Voltage rating, electrically similiar to 6CG7)

(6SN7GTB is a controlled warm-up version of 6SN7GTA; 11 second heater warmup, 450VDC Plate Voltage rating. It also has 200VDC heater/cathode voltage rating)

thank u for the info

Ok, I switched back to the Svetlana 6H13C today after having used the Sylvania 6AS7G for a while. I have to admit, I like the sound of the Svetlana much better - the sound has much more weight and body behind it compared to the detailed but somewhat thin Sylvania. A much more enjoyable "tube-like" sound while still retaining tightness and refinement.