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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?
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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

mihilli
33 posts
 
Thanks Tvad
1markr
525 posts
 
Hi Dennis,

The first "6" shouldn't be there. It should read Sylvania Gold Brand GB-5687. I have the gold pin versions. I also have a pair of the 5-star GE 5687s, but have not had a chance to try them yet.
tvad OP
9,467 posts
 
Having just listened to the SWL9.0SE with Sylvania GB-5687 and JAN GE 7044 tubes, I can say the Sylvania's have a profoundly positive affect on the musicality of the Modwright preamp in my system. No glare or hardness like I was experiencing with the TungSol 5687, while still maintaining outstanding detail and extension.
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