2. amps-preamps
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tube recommendation please

I am brand new to tubes and need some advice. I have a PrimaLuna Prologue three which use two 5AR4, two 12AX7, and two 12au7. I listen to female vocal mainly, hopefully I can get bigger sound stage, and smooth and warm vocal.

I start off with the 12ax7 and ordered a pair of Tungsram produced in 1967. I am also planning to get a pair of 1960's Amperex, but I am waiting for some more reasonably priced.

My question is .. what should I get next? Should I upgrade the 5AR4 or the 12AU7 next? and is there any suggestion on those tubes?
gte357s

Showing 2 responses by mofimadness

mofimadness's avatar
mofimadness
5,366 posts
 
I'm a Mullard man myself, so I would recommend the Mullard CV4003 (12AU7), (platnium grade) from Upscale Audio and a pair of Mullard GZ34 (5AR4). These are getting a little harder to find, but there were a few here on Audiogon.

The Mullards have a marvelous midrange which makes females vocals "to die for".

I have drawers full of NOS tubes and always go back to the Mullards...
mofimadness's avatar
mofimadness
5,366 posts
 
The CV4003's (12AU7) are cheaper, I would try those first. The 5AR4's are kinda pricey.

Since Kevin Deal (owner of Upscale Audio) is also the importer for PrimaLuna, I would call/e-mail and ask him. He has never steered me wrong over the past 12 years or so and I have bought alot of tubes from him. I'd use his knowledge.
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