2. amps-preamps
  3. 1326387515

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
 
mikirob, the ge`s are definately not right. i put them in when i tried out the telefunkens. when i switched the amplifier on it sounded like distant thunder rumbling. i put on a cd and again i got that distant thunder sound so i took them out. they sounded really nice but that rumbling left me feeling a little uncomfortable. i had the same thing when i had the electro harmonix kt88`s in my amplifier too with the ge`s. i actually did think it was thunder in the distance!
mikirob
950 posts
 
Thanks for the info GrayF. If you decide to sell the Sylvania give me a shout out. Best!
grayf OP
61 posts
 
i just hope i have enough funds in the bank to get them! but yes i`ll certainly let you know if i decide to part with them if they`re not suited in my system. it`s going to be a thrilling time once the treasures have broken in. 242 hours to go!!! and counting! how sad am i!!!
mcpherson
174 posts
 
Grayf
Glad you liked them. Both of those cds are good beginning to end which is rare...at least for me!
reynolds853
367 posts
 
Grayf,

As you can obviously tell from all of my posts, I have found it very difficult to get past the Telefunkens too.

JBS
More to discover