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Mark III preamp tubes.
http://forum.grailtone.com/viewtopic.php?f=16&t=58095
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Author:  blackthunder [ Tue Jan 24, 2012 8:46 pm ]
Post subject:  Mark III preamp tubes.

Alright all you metal players using Mark III's, what kind of preamp cocktails are you using?

Author:  SonicProvocateur [ Thu Jan 26, 2012 12:54 pm ]
Post subject:  Re: Mark III preamp tubes.

For heavy shred everything:

V1 - The nicest, sweetest tube you own.
Everything else - choice high gain chinese tubes. 12AX7B's, and silver specials from the 80's.

Author:  DJPattP [ Wed Oct 09, 2013 7:57 pm ]
Post subject:  Re: Mark III preamp tubes.

I am going to try a GT tube that I have identified as a JAN GE 12AX7WA in the number one, and the Chinese square getter dual post ones in everything else.

Will advise

Author:  DJPattP [ Wed Oct 23, 2013 8:48 pm ]
Post subject:  Re: Mark III preamp tubes.

SonicProvocateur wrote:
For heavy shred everything:

V1 - The nicest, sweetest tube you own.
Everything else - choice high gain chinese tubes. 12AX7B's, and silver specials from the 80's.


I got alot of old Chinese 12AX7's How can you ID it if it is a Silver Special?

Author:  R_ADKINS80 [ Sat Nov 09, 2013 8:22 pm ]
Post subject:  Re: Mark III preamp tubes.

DJPattP wrote:
SonicProvocateur wrote:
For heavy shred everything:

V1 - The nicest, sweetest tube you own.
Everything else - choice high gain chinese tubes. 12AX7B's, and silver specials from the 80's.


I got alot of old Chinese 12AX7's How can you ID it if it is a Silver Special?



On the silver specials, ALL of the visible internal components look like they are chrome plated.

Author:  mesaboogie6L6 [ Sun Nov 10, 2013 10:57 am ]
Post subject:  Re: Mark III preamp tubes.

I'm using RFT in V1 and JJ's in the other spots, in My Mark III Coliseum blue stripe.

Author:  droptrd [ Fri Dec 20, 2013 10:11 am ]
Post subject:  Re: Mark III preamp tubes.

I run a mallard in V1. Makes my purple stripe scream. LPS in the PI and Chinese in the rest. Ive owned 2 Mark IIIs in my days and both were extremely picky about preamp tubes. This cocktail worked best in both of them for my ears.

Author:  Mr.P [ Thu Feb 13, 2014 11:42 am ]
Post subject:  Re: Mark III preamp tubes.

What should I put in v1? is Tung-sol good? Or something like mesa's SPAX7?
I'm currently using JJ ECC83S.
If I put a "high gain" 12ax7 as phase inverter, how will it affect the sound?
Has anyone tried Sovtek LPS in v5?

EDIT:
Nevermind, I put tung-sols in v1 and v3 today. I hear improved sustain and overtones, brighter/more clarity, and more cut. But there is slight decrease in gain, and the bass isn't as punchy/tight.

Author:  jkkkjkhk [ Fri Jul 25, 2014 8:53 pm ]
Post subject:  Re: Mark III preamp tubes.

89 Green stripe simulclass w/GEQ, I play hard rock and metal.
Right now I have Winged C 6L6's
V1: TAD 12ax7
V2: 12ax7EH
V3: Tung Sol 12ax7
V4: Tung Sol 12ax7

Before that I had Tung Sol in V1 and V3 and EH in V2 and V4. First thing I noticed was the high end was rolled off slightly, took some of the hair off which I liked. The low end was also bigger, wasn't getting mushy at all, felt like it was pushing more air. I haven't experimented much but just from this little bit it was definitely a good upgrade.

Author:  parntz145 [ Sun Sep 21, 2014 1:24 pm ]
Post subject:  Re: Mark III preamp tubes.

Try an Ei in the V1 position and 8th generation Chinese in all other spots.

Author:  sotosprince [ Thu Jun 04, 2015 3:28 pm ]
Post subject:  Re: Mark III preamp tubes.

What's your opinion on SOVTEK 12AX7 LP ECC83 ?

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