OK.. So, one of those lush and amazing things we get to experience in HiFi is happening to me right now. First time was with the PF's second time was with this amp (the only previous time this happened to me was invloving Wilson and Nagra!)
So, I place in the new tubes, Brimar 1T4''s for the gain stage, Mullard 3S4's for the power stage.
I let it warm up then play music through it for 10 minutes.. What happened next makes me want to state this for anyone contemplating buying this wonderful amp. Figure in an extra $30 on top of the price of the amp for getting these tubes is not an option, it is compulsory I feel.
Immediately what becomes obvious is that the ability of this amp to dig deep into the sonic and retrieve detail increases to a point I never dreamed of possible with portable audio. One not only hears the piano one also hears the strike of the hammer on the metal string and the metallic resonation of that string decay. Truly, I have only ever heard this before on that Wilson/Nagra set up.
Likewise, there is more weight to the bass but the bass remains tight but oh so much detail to a bass string. Again, the decay of the note one plucked is simply amazing. I really really hate to use hyperbole but these tubes in this amp won't allow me to do anything else but apply it!
Vocals on Anne Bissons music.. Oh boy, Anne has so much more feeling, the vocal is just.. Wow!
So, why I chose this set of tubes. Well, I know that the bottom end on Mullards is legendary as is the weight and warmth. The Brimars are known more for their detail extraction and speed so I thought a combination would bring all the things I love to the fore. This is, I am so happy to say, the case!
This truly is not subtle. It is wonderful. Di-Ma, going on my experience with this amp is truly a gifted amplifier maker. Add in top notch tubes and you have something very very special indeed and to think, the tubes have got to settle in still and there is still some burn in on the amp left!
But at the moment I am simply lost in the music, who would have thought this possible with a portable set up, it truly rivals some really really good home set up's I feel!
Oh yes, with these tubes, ZERO micro phonics, I can tap firmly on the case, nothing. Background noise is non existent as it was with the stock tubes but now that blackness feels darker and deeper!
Edited by ianmedium - 1/29/13 at 2:28pm