Little Dot MKIII Tube Rolling - Page 151

I'd love to order those but it'd cost me over 40€ MINIMUM to get a pair shipped to Finland. That seller needs to tweak his shipping prices a bit, I think 

$5 shipping is a bit expensive for a tube, but I guess it's because the price of the actually tube is so low.

It's more like $7-$8 per tube, which is still a great price I believe. I'll probably be getting a set soon enough.

I requested for a new total and I ended up with $15 for two tubes, shipping included.

The EV's should be arriving tomorrow, a pair of CV4010's a day after that and the Sylvanias next week (hopefully). Can't wait to get my hands on them.

Guys, give me please an exact answer on this question : Is there any difference between Russion 6J1P and 6J1P-EV  ? 

These tubes are similar with the EV a better version.

E: extended service life

V: increased reliability and mechanical ruggedness and less susceptibility to noise and microphonics.

Another version of this tube is called 6Zh1P-EV.

Another post on this thread mentions that all these EV tubes sound the same. Normally, a tube may last for 2,000 hours; the EV tubes are supposed to last 5,000 hours. (Mullard 10 M Master series, GE Five Star and GL series as well as Sylvania Gold tubes,  I believe are rated for a 10,000 hour service life - if I got it wrong please let me know.)

These tubes sound good and are very inexpensive as well. In my system they exhibit strong bass with a somewhat constrained sound stage and fairly detailed sound with excellent highs. A pleasant neutral tube to listen to with punchy bass.

I bought a few sets of the 6J1P-EV and wasn't particularly impressed with them.  Luckily I decided to try some 6Zh1P-EV and was blown away by how good they sounded.  They can be a very very good tube for the LD and I've tried alot of different tubes.  ( tube rolling can be very addictive )  Both of the Russian variants I tried had the three vertical grooves in the glass..nicknamed the Groove Tubes.  They had great dynamics and were a well balanced tube.

Yeah I've been using 6Sh1P-EV's for about a week now and they're completely stunning tubes. All instruments are separated very clearly, the soundstage is more than sufficient and there's a very pleasing kick on the lower end.

I'm now comparing them to the Sylvania 5654/6AK5's I received today and unless the Sylvanias really improve with burn-in, I think the groove tubes are going back in. Astonishing quality and only for a dollar each!

Quote:

Originally Posted by novak 

Yeah I've been using 6Sh1P-EV's for about a week now and they're completely stunning tubes. All instruments are separated very clearly, the soundstage is more than sufficient and there's a very pleasing kick on the lower end.

How do these tubes affect the highs/treble? I'm planning on using my LD MKIII with Beyerdynamics DT990s and the treble can be a bit aggressive. I would really like something that can smooth it out without diminishing the clarity of the sound. I heard the CV4010 were good for that but the ones you're describing now seem quite interesting.

Can you give a link to your source for the $1 Sh1P-EV tubes?

Quote:

Originally Posted by novak 

Yeah I've been using 6Sh1P-EV's for about a week now and they're completely stunning tubes. All instruments are separated very clearly, the soundstage is more than sufficient and there's a very pleasing kick on the lower end.

Sorry for the double post, but are these the famous Russian Groove Tubes I've been reading about all over this thread? Also are those the same as the 6Zh1P-EV (which I heard are the same as the 6J1P).

Quote:

Originally Posted by Yekrut 

Sorry for the double post, but are these the famous Russian Groove Tubes I've been reading about all over this thread? Also are those the same as the 6Zh1P-EV (which I heard are the same as the 6J1P).

Yup, they're the groove tubes.

They get their name from the two vertical grooves on the glass. Can't be certain if they're the same as the 6J1P, but judging from the schematics I managed to find they differ in their construction.

Quote:

Originally Posted by mordy 

Can you give a link to your source for the $1 Sh1P-EV tubes?

http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=130334726822

Quote:

Originally Posted by Yekrut 

How do these tubes affect the highs/treble? I'm planning on using my LD MKIII with Beyerdynamics DT990s and the treble can be a bit aggressive. I would really like something that can smooth it out without diminishing the clarity of the sound. I heard the CV4010 were good for that but the ones you're describing now seem quite interesting.

Just from the impressions I've managed to gather they're slightly more recessed at the top of the range than the stock tubes (or Sylvania 5654/6AK5's/Mullard CV4010's for that matter). They're not harsh at all and out of all the tubes I own for the LD3 I think the EV's are actually my favorites as far as sound clarity goes, especially in the mid range. The others can sound a little shrill at times with my HD 650's and the Sylvanias sound downright muddy on top of having annoyingly piercing highs.

Have you played around with the gain settings, by the way? It could be the cause of the problem youre having.

Sweet! Thanks for all the info novak. I think I might purchase those tubes in the near future, especially since they are such a good deal.

I don't actually have the amp yet! I'm just being a bit preemptive and looking to improve on the stock tubes. But yes I'll be messing around with the gain settings to get the best sound out of the stock tubes first.

Hi Yekrut. On previous page I had put the same question you did, but for the 250ohm beyers. Unfortunately got no answer, glad Novak finaly gave us both some really precious advice on the topic.

Today I'm gona buy a set of 8 Russion 6J1P-EV and in a couple of days I'll definettly write my impressions on them. Also I would like to mention thet the stock Little Dot MKIII combo does not sound warm and tuby at all, they more sound like a winder stage SS amplifier (compared to my Audinst Dac/Amp ), so , in our case tube rolling is vital necessary!

By the way, with the stock tubes I use gain Setting = 5 for my DT990. The 10-th setting is warmer but in also nerrower the soundstage, so I think 5 is the sweet spot. The smaller the gain, the brighter the sound and bigger the soundstage. But if gain < 5 , on DT990 the bass becomes simply overwhelming.

Next week I'll gonna order some Mullard CV4010 M8100  and a pear of Tung Sol too

Warm and tubey is exactly how I'd describe the EV's. The first couple of days with them I wasn't all that impressed but after that they really started to blow me away.

Let me know how the Tung Sol's work out for you. I've been interested in trying them out myself.

Quote:

 This is really a good thing to hear, 'cause right now, out of the box, with no burn in, this tubes sound nothing special, slightly better then the GE tubes, but almost unnoticeable..  Really hope burn in will help..  I was pretty lucky to find 6J1P-EV -s in my city in stock, with no shipment overpayment.. I've payed only 1$ for each.  Unfortunately Mullards M8100 will cast me 10 times more 

Right now the sound is too boomy. My DT990-s it turned intro a woofer that overwhelms the rest spectrum.. Hope another pair of 6J1P-EV would perform better.. (i've got 3 pairs)

But as for now, i agree that Russian groove tubes are a bargain for low-punchy headphones like the Sennheiser HD 5** series or the AKG-s.. As For Beyers, this is too much...