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DNA Stratus 2A3 amplifier - first impressions - Page 125

post #1861 of 1866

Am I the only one using a 5U4GB tube in the Stratus??? I think I have an RCA in there right now. I actually preferred it to some of my vintage 5U4G coke bottle style tubes.

post #1862 of 1866
I have a Tung Sol 5U4GB. Good musical tube with full bloom and nice intimate soundstage but kind of flat. It also sounded like the Westinghouse 5U4GB I used to have and the Sylvania 5U4GB I currently have. Hear one 5U4GB and you've heard them all.

I prefer the coke bottle version of the tube which offers more refinement and seems to produce a wider variety of sound, though 5U4G's from the 1950s and 60s do start sounding same-y. When you dig deep into the 1940s, you start uncovering gems and start noticing character traits of each brand, as you are closer the house sound of the OEM (before it became diluted in the 50s, 60s and onward). I'm getting the fullest, warmest midrange with the Raytheon and Sylvania VT244's as well as a great sense of space. The impressive depth of stage of the CKR and the stage width of the CNU/CRC's are a step up from their 1950s non military counterparts. It's almost a revelation.

I'm also expecting good things from an incoming Tung Sol VT-244, the supposed king of all 5U4s. I have a 50s Tung Sol 5U4G and strangely it sounded a lot like a 50s RCA and 50s Sylvania.

The coke bottle 5R4GY also produces a sound of their own and differences with each brand.

Oh the joys of tube rolling.
post #1863 of 1866
Quote:
Originally Posted by drheadphone View Post

I have a Tung Sol 5U4GB. Good musical tube with full bloom and nice intimate soundstage but kind of flat. It also sounded like the Westinghouse 5U4GB I used to have and the Sylvania 5U4GB I currently have. Hear one 5U4GB and you've heard them all.

I prefer the coke bottle version of the tube which offers more refinement and seems to produce a wider variety of sound, though 5U4G's from the 1950s and 60s do start sounding same-y. When you dig deep into the 1940s, you start uncovering gems and start noticing character traits of each brand, as you are closer the house sound of the OEM (before it became diluted in the 50s, 60s and onward). I'm getting the fullest, warmest midrange with the Raytheon and Sylvania VT244's as well as a great sense of space. The impressive depth of stage of the CKR and the stage width of the CNU/CRC's are a step up from their 1950s non military counterparts. It's almost a revelation.

I'm also expecting good things from an incoming Tung Sol VT-244, the supposed king of all 5U4s. I have a 50s Tung Sol 5U4G and strangely it sounded a lot like a 50s RCA and 50s Sylvania.

The coke bottle 5R4GY also produces a sound of their own and differences with each brand.

Oh the joys of tube rolling.

thanks for the input - if you were to use HD800 for jazz only which rectifier would you prefer? Are the rectifiers you mentioned in the last few posts up there with the U52 for jazz and acoustic or would you choose a different rectifier? 

post #1864 of 1866
Quote:
Originally Posted by magiccabbage View Post

thanks for the input - if you were to use HD800 for jazz only which rectifier would you prefer? Are the rectifiers you mentioned in the last few posts up there with the U52 for jazz and acoustic or would you choose a different rectifier? 
I like a super detailed tube for jazz. So the U52 and the HD800 are the perfect pairing. For other types of music, the Raytheon might fit better since it's a more forgiving tube.
post #1865 of 1866

I'm with you, the coke bottle tubes have great highs and midrange. Were they fall short in my opinion is in the bass. I like a tight, fast, bass sound and some of the older tubes sound too round and undefined for me. The GB I'm currently using helps with that, but probably gives up some of the mid magic and soundstage. I guess everything has it's trade off.....

post #1866 of 1866
The Ken Rad VT244 has tighter, more detailed bass than any 5U4GB and 5U4G I've heard. My incoming Tung Sol's could change things though.

The 5R4GY tubes by Philips and RCA have even tighter bass and provide more texture.
Edited by drheadphone - 7/26/14 at 3:15pm
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