[ARCXENOS]

I would love to try the sylvanias 22de4 someday, but alas the online market appears to be empty

 

[jonathan c]

I would love to try the sylvanias 22de4 someday, but alas the online market appears to be empty a vacuum.

FTFY…[Reg. TM; © bcowen: 2021.]

 

[ThanatosVI]

Did someone say 22dE4. . . Here's a few of mine that I am rolling.



I just started a rollathon yesterday with my collection of 22dE4's, and they all sound good now that I have the M1 fuse in the amp.

You can most definitely lower or raise the noise floor with rolling the rectifiers. I am currently running a quad of Sicte and they are the quietest of the bunch. Also, I have found that rolling rectifiers influences bass response and staging the most.

G.E. are the most forward and dynamic, and RCA are the most relaxed with the biggest stage, and the rest are somewhere in between. Next roll is going to be a quad of Sylvania’s.

That explains why they are nowhere to find, you have the remaining World stock for yourself

 

[TomKorn]

I have mine (L700) connected to the Stax amp via HA-300B MKII 3.5mm output to XLR input (of the Stax amp) and it works great. And more silent too I could also use XLR output to XLR input but reserve the XLR output for the ZMF VC. Really loving how I can switch between the Stax and ZMF based on the mood

How? Sorry for asking but what's the point of 2 amps?

 

[EagleKent]

How? Sorry for asking but what's the point of 2 amps?

Stax headphones need an electrostatic amp to drive hence can't connect to HA-300B directly.

 

[paradoxper]

How? Sorry for asking but what's the point of 2 amps?

Electrostats require very high voltage and work differently from conventional dynamics so you need an amplifier that provides the bias voltage.

 

[jamato8]

Has anyone used the 5692 tube? I have some but they have never been my favorite. The 5691, the 6SL7 variant is very good but always found the 5692, the long life and slightly lower rated 6SN7 to be overly warm and not as dynamic as the 5691.

 

[Wes S]

Rolled in one of my quads of 60's Sylvania 22DE4's yesterday and I am loving what I am hearing. The Sylvania's are very well balanced top to bottom, with incredible bass slam, that is tighter than the G.E.'s and goes even deeper too. In fact, the bass with the Sylvania's is the strongest, tightest, most impactful bass I have heard with the amp so far, and has speed, impact and texture for days. Using my VC's the bass sounds extremely planar like (you can literally feel the vibrations and texture), and even more so than it did with the 60's G.E. 22DE4. The mids are very even and detailed and the highs are airy and extended with sparkle, but stay fatigue free at the same time. The Sylvania walk a fine line between speed with detail/transparency and easy going smoothness and stay fatigue free no matter how much I crank the volume. The vocals aren't as forward as the G.E.'s and are more in line with the rest of the instruments and the images are tight, huge and fulley fleshed out. The staging is also massive and the most holographic I have heard yet, with height and depth for days. Long story short, I am loving what I am hearing and this quad of Sylvania 22DE4's are staying in the amp for the foreseeable future. . . or at least until I get the itch to try a quad of Raytheons.

Back to musical bliss. . .

 

[Wes S]

The Sylvania 22DE4's don't just have killer sonics, they also have a nice glow to them.

I have to say of all the different tube types I have had over the years, the 22DE4 has the coolest looking glow of them all, however the Elrog ER300B's are close second.

 

[jamato8]

The Sylvania 22DE4's don't just have killer sonics, they also have a nice glow to them.



I have to say of all the different tube types I have had over the years, the 22DE4 has the coolest looking glow of them all, however the Elrog ER300B's are close second.

What 6SN7s are you using?

 

[Wes S]

What 6SN7s are you using?

RFT Welded Plates with Ceramic Spacers and Dual Foil Cup Getters from 54', and they are the bees knees.

 

[jamato8]

How long is the umbilical from the PS to the amp?


Also got some interesting 22DE4 tubes. Getter flash on top, clear mica supports and on the top mica, a glass support for the grid an and bottom mica there is a glass piece. This would make everything very solid. .

No brand on them but test as NOS and very strong, better than GE I have. I have a few thousand tubes and haven't seen a glass piece used like this for the grid.

 

[Roybenz]

Anyone Would like to help with what dac that goes well with the ha300b mk2 ? Looking to blind buy the cayin and would need a good dac to go with it anyone tried it with moon 680D? Is it a good match?

 

[bdjul]

Anyone Would like to help with what dac that goes well with the ha300b mk2 ? Looking to blind buy the cayin and would need a good dac to go with it anyone tried it with moon 680D? Is it a good match?

I recommend holo spring 3 or may. Should be good.

 

[msq123]

Anyone Would like to help with what dac that goes well with the ha300b mk2 ? Looking to blind buy the cayin and would need a good dac to go with it anyone tried it with moon 680D? Is it a good match?

I love TT2 which offers additional flexibility of a solid state amp when needed