my advice on pretubes and did anyone try Groove Tubes?

[flownomis]

so i tried a lot of different preamp tubes in my einstein yesterday.
always v1,v2,v3
i used an esp with emg´s and a marshall 1960 , keep that in mind.

1.i tried all of them highgrade tad 7025
2.mixed with 12xa7c tad, only 12ax7c
3.and all ruby hg+ and hg , meaning the original set up

1.the 7025 were way too full and warm, without outstanding highs and dynamics, you can forget the cleans ! way to bassy and fat
2.the 12ax7-c were way to harsh,fizzy and skinny.
the combination of 12ax7-c with 7025 was..OK but nothing great

all the time i was missing the great diezel roar und cutting tone
i played the 7025 for a half year and had just forgotten about the rubys

3.when i throwed them in i was blown again. i was so thankfull cause i had my diezel sound back, awesome clean, great attack , not to compressed. a pitty that i didnt realized this earlier.


TO SUM IT UP: peter is a genius and knows best of all what sounds the best.

if you like and love THE diezel sound, DO NOT CHANGE YOUR TUBES or you get really sad




so my question for all you guys: did someone try the very very expensive GT6550-R and the GT 12ax7c? im thinking about retubing my marshall but that would be a fucking 400 €.

 

[PaulyPanacea]

i never liked Groove Tubes for anything except for putting them in something i was selling to keep the good tubes. always sounded like crap & had tons of failures. Maybe just my luck.

If you are going for 6550s could i recommend the SED Winged Cs. Super reliaable!!

 

[Hard&Heavy]

Nope! not a G.T. fan here.

 

[Anonymous]

I have changed out my preamp tubes after playing for two years on my Einstein with the stock tubes that it came with.
While I like the tubes that Peter chooses to put into the amps, after playing them for a good long while, I desire a change. I am not a fan at all of Groove Tube anything as a replacement tube.

I have gone to NOS tubes from European companies whose tube sounds I prefer and have great luck in making my Einstein sound great for what I wanted from it.

I am using different pickups from what the OP is stating he uses, and I am probably trying for a different tone from my Einstein then the OP is desiring.

Hey, it's all good.