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Modwright SWL9.0 SE Tube Rolling

I'm using TungSol 5687 tubes as supplied by Modwright in my SWL9.0SE. They are very linear and extended with deep bass, however they have little midrange bloom.

Has anyone rolled other tubes in the SWL9.0SE? If so, would you please describe their tonal characteristics?
tvad
dennis_the_menace's avatar
dennis_the_menace
467 posts
 
my ideal tube would have both nice bloom but also very transparent. the tung sol feels balanced, but maybe a tad lean. think i'm goin to try some GEs and RCAs, yes?

do i hear a bit of a closed in or controlled sound from the tung sols?
1markr
525 posts
 
Dennis, I tried the RCA 5687 bronze plates, not on the preamp, but on a Modwright 999ES cdp. They sounded veiled and lifeless compared to the ones above. Maybe it was the tubes?
mihilli
33 posts
 
Can anyone recommend a source/s for the GE JAN 7044s? I had a bit of a troll around and didn't find any readily available.

Thanks
dennis_the_menace's avatar
dennis_the_menace
467 posts
 
thanks 1markr. So, is this the correct tube number for the Sylvania GB65687? just wanted to make sure that wasn't a typo. I'll keep my eye out for GE 7044. The GE's I'm hoping to try are the 5 star 5687.
tvad OP
9,467 posts
 
Can anyone recommend a source/s for the GE JAN 7044s? I had a bit of a troll around and didn't find any readily available.

JAN GE 7044

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