2. amps-preamps
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12ax7 vs 5751

hi all,
i need some advice. i`m very new to tube amplifiers and i`ve been doing some tube rolling.

i currently have a pair of grant fidelity matched psvane 12ax7t`s in my amp which sound fantastic.

what i`d like to know is which are the better tubes, 12ax7`s or 5751 tubes. i`ve been looking at forums and there are folk out there that say 5751 tubes are better than 12ax7 tubes.

can i have your thoughts on this please and also which are the good 5751`s to go for.

i really like the psvanes but if they can be bettered i`d go for it as my next line up of replacement tubes.

my amp is a yaqin mc100b. the tubes i have installed at the moment are.....
2 x psvane 12ax7t`s
2 x brimar 6sn7gty/cv1988`s
2 x sylvania 6sn7gtb`s
4 x electro harmonix kt88eh`s

many thanks in advance guys.
grayf
grayf OP
61 posts
 
i must start by offering my apologies! i did say the psvane tubes are staying in for the duration of the burn in process. but somethings been niggling away at me. well the treasure tubes sound has really calmed down a lot to the point of being smooth, soooo, i thought i`d put the telefunkens back in! a very good move! as it is now, they offer a truck load of detail, but they don`t sound sharp, they sound very smooth. like the psvanes they have a beautiful warmth but these telefunkens add class. it`s very hard to describle. it`s like the sound has more life to it. they seem to have more texture and more realism. more true to life sound. pity the neighbours are in now! this is crying out for more volume!
mcpherson
174 posts
 
Grayf
Sell some tubes and move!!!!haha
I know this is a bit off topic but they had a Dave Gilmour concert on last night on HD Net. I wouldnt have known who it was except for this thread.
I am trying to pull some strings myself right now to get some tubes...without my wife having a heart attack.
I dont know how you feel about Christian music but there are two female vocal cds I recently got that are very good
-Francesca Battistelli "my paper heart"
-Kari Jobe "kari jobe"
You may checkem out if you get bored
grayf OP
61 posts
 
good idea!!!
i don`t mind any kind of music though i`m not religeous, but i`ll certainly check them both out. have a listen to this dave gilmour track......you`ll see why i love it so much. amazing guitar tones! http://www.youtube.com/watch?v=86py0X_o2gs&feature=related
grayf OP
61 posts
 
i like francesca battistelli`s voice and fantastic song. very up beat! i like! i`ll check out kari jobe too in a while
mikirob
955 posts
 
GrayF, yeah, sell me the Slyvania 5751 and GE pair, that way you replenish some of your investment. That is one of the great pleasures of tube rolling, you can usually recoup some of your money if a certain tube doesn't work out.
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