I've only had my rackmount Monique for a week or so, and I am already planning to do some tube rolling (not because Monique is lacking in tone, but because I am a diseased tube roller from way back when, and I just can't help being addicted to NOS tubes, no matter what bass amp rig I'm using). Here is what I am planning to do:
V1 (gain): replace stock current issue Shuguang 6N9P (6SL7) with a 1951 brownbase NOS/NIB JAN Tung Sol 6SU7GTY (6SL7 equivalent), round black plates, black glass.
V2 (EQ): replace stock current issue Tung Sol 6SL7GT with brownbase NOS JAN CHS Sylvania 6SL7WGT, black plates.
V3 (buffer): replace stock chinese current issue 12AU7 with NOS RCA 12AU7WA/6189 blackplates.
V4 (rectifier): replace stock current issue Electro-Harmonix 6CA4EH (EZ81) with NOS/NIB RCA 6CA4 (EZ81).
At the time of this writing, I already have the first three NOS tubes in my possession, but not installed yet. The fourth (V4 rectifier) is being shipped to me right now. Once I receive that fourth tube, I will open up Monique and swap out all four tubes at the same time. I will then post up with my comments.![]()
Well, I finally got around to installing the NOS tubes into Monique today (as described in my Nov 25 post above), and I fired up the rig.
I would say that the tone sounds a bit more authoritative. Was there a huge difference between the stock tubes and the NOS tubes? I would say no, not a huge difference. That's a testament to Jule's excellent circuit design. But I will say that I do like the NOS tubes slightly better.
Monique rocks!

