or Connect
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › LD MK VI Tube Rolling!!!
New Posts  All Forums:Forum Nav:

LD MK VI Tube Rolling!!! - Page 7

post #91 of 130
Quote:
Originally Posted by El_Doug View Post
too bad I just told my tung-sol's, i woulda offered them to you as a fellow head-fi'er

in the end, I felt the driver tube upgrade to ecc35's made a world of difference. however, I couldnt justify the $150+ for the 5998's - the difference was really extremely small
Where do you get the ECC35s and how much are they? I've seen that the difference in driver tubes is more than power tubes in other threads so I might try those since I intend to get a 2nd pair so I have spares (either the current ones spare or the new ones) of those.

I couldn't find ECC35s on tubeworld and the ones on eBay seemed pricey to say the least. I'm assuming driver tubes should be matched whereas power tubes it is less important (as David told me).
post #92 of 130
The Mullard (or Azam ECC35's) go for about $225 and very hard to find.

Just got mine today with my 5998s, but haven't rolled them yet
post #93 of 130
Quote:
Originally Posted by Maxvla View Post
Where do you get the ECC35s and how much are they? I've seen that the difference in driver tubes is more than power tubes in other threads so I might try those since I intend to get a 2nd pair so I have spares (either the current ones spare or the new ones) of those.

I couldn't find ECC35s on tubeworld and the ones on eBay seemed pricey to say the least. I'm assuming driver tubes should be matched whereas power tubes it is less important (as David told me).
The ECC35s can be found on eBay. A pair of NOS ones may be around ~220-240$.
post #94 of 130
Ouch, I'll be fine with the stock ones
post #95 of 130
Quote:
Originally Posted by Maxvla View Post
Ouch, I'll be fine with the stock ones
You can go with a used pair which goes around 110-130$ I think
post #96 of 130
So, these seemingly cheapo Electronic Enterprises (West Germany) 6AS7G tubes I got are pretty nice. They are similar to the 6080s, but slightly crisper. I still like the 6080s, but these are nice too. I don't know if I'll ever replace this amplifier. It's just a great deal.
post #97 of 130
I finally have been rolling tubes in my MK6 and the Adzam EC335s are keepers, but I don't care too much for the Tungsol 5998s.

I actually like the Raytheon 6080wc's that came with the MK6 more. With the 5998s I lose a lot of bass and warmth to the music that the 6080s have.

Does anyone know what tubes sound better than the Raytheon 6080's while still keeping the same sound signature as the Raytheon's?
post #98 of 130
Hi, looking for some confirmation on tube choices.

My LD6 and LD DAC should be shipping to me this week. After reading this (and a few other) threads, I became convinced that I'd be moving on from the stock tubes, so I asked David to shave a bit off the price and send me the amp tubeless.

I'll be feeding the DAC with a Squeezebox with a Signal Silver Digital Refrence cable, running Signal Analag Two Balanced XLR's into the LD6, and using Senn 650's with a custom balanced cable that Signal is doing up for me.

The difference for me though is I'm also going to be using the LD6 as a preamp for a Krell KAV-2250, also via Signal XLR's. So I need tubes that can bring out everything the Krell has to offer, no easy task. The Krell will be powering a pair of old Polk SDA 1C's with crossovers that I rebuilt with Sonicaps and Mills.

Having read this thread, I seem to be leaning towards the Tungsol 5998's and the Brimar CV1985/6SL7GT's.

The Brimar CV1985/6SL7GT's are plentiful on tubemonger, I'm seeing mostly ones with a brown base that are manufactured in the 1950's.

The Tungsols seem harder to find. Any good sources where I could find a matched quad?

Wondering what people think of the choices here, especially matching up with the loudspeaker side?

Thanks...
post #99 of 130
Thread Starter 
Your signal path is too long. Don't use squeezebox before your DAC, better connect your DAC direct to the computer transport via coaxial.

For driver tube I like the brimar and valvo 6SL7GT.

For power tube 5998 sound a bit cold to my liking. For a warmer sound I like the underated 6H13C. It's got the best soundstage and the most accurate sound reproduction among the power tube I have try.
post #100 of 130
Quote:
Originally Posted by cafe zeenuts View Post
Your signal path is too long. Don't use squeezebox before your DAC, better connect your DAC direct to the computer transport via coaxial.
The digital signal will NOT degrade over WiFi. Nothing changes in terms of signal with a Squeezebox or Sonos. However, with the squeezebox, nspindel will have the advantage of the loud computer not being anywhere near the listening position, without spending ungodly amounts of money on ssd's and fanless cases/psu's.
post #101 of 130
Thanks for the advice on the power tubes, I'll check those out.

On the digital side, Squeezebox is the only way to go. Plug and play, remote control, no computer in the room, bit perfect digital with no complications. You couldn't pry the Squeezebox out of my rig with a crowbar. I've had it modded like crazy as well :-)

Btw I don't use it over wifi either, I have a wired network as well throughout the house.
post #102 of 130
cz, can you confirm that these are the 6H13C's that you recommend, and also can you recommend the "winged" over the regular:

Russian 6AS7G / 6H13C

Winged "C" 6H13C / 6AS7G


It doesn't surprise me at all that you've identified cheaper Russian alternatives that you enjoy more. In fact I'm surprised there are no recommendations for inexpensive Russian drivers over the CV1985/6SL7GT. When I had my MKIVSE, my favorite drivers by far were the Russian 6ZH1P-EV's. I prefered those to the Mullard M8100, Mullard M8161, and Raytheon 6AK5W.

I'm not looking to skimp on tubes (I'm feeding a Krell!), but I was amazed by the sound of those Russian M8100 equivalents. I'd be willing to experiment with Russian drivers before commiting to the $225/pair Brimars, if anyone can recommend some. Otherwise, I'd be looking to get a pair of these:

Brand New, Matched Pairs RARE MINT NOS NIB AUGUST-1956 Brimar CV1985 6SL7GTY Tubes. Square Getter and Brown Micanol Base. STC Footscray production. From British Military Stock. One of the most desirable 6SL7 type tubes.
post #103 of 130
Found the Valvo's here:

Audiophile

I saw earlier in the thread you recommend them over the Brimar. They're less than half the price. Am I comparing apples to apples?

Those Russian tubes are $20/tube, $30 for the winged. Not sure if the winged makes a difference, but even so, at $120 for the 4 plus $100 for the Valvo's, $220 for the killer tube combination makes this amp an even better buy than I thought!
post #104 of 130
Actually, that shop in the above link is selling the Brimar's for far cheaper than tubemonger.
post #105 of 130
Sorry for spamming this thread, just wondering if anyone has ever dealt with this natubes.com company out of Vietnam? Their prices seem awesome, but I'm a bit nervous dealing with them without a recommendation.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphone Amps (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › LD MK VI Tube Rolling!!!