Best Tubes for VAC


Hi All,

I've got a VAC Signature iia SE linestage (upgraded from iia) and a pair of Phi 200 amps.  I'd like to optimize tubes for transparency and detail (of course I also want tonal accuracy, soundstage and imaging). I'm wondering if there are any folks out there who have optimized tubes in their similar VAC units?  The tube compliments are:

PREAMP:
2x 12AU7
2x 8416, 7308, 6922, E88CC, ECC88, 6DJ8, (or 12DJ8 twin triodes)

AMPS (each)
4x KT88
4x 6SN7 (in the best 2 positions, I've got a pair of NOS Sylvania 6SN7GT's)

What have people found to work best in these VAC units?  Thanks in advance, Peter
peter_s

Showing 2 responses by johnss

Hi Peter S,
you are welcome.;
glad to hear you were able to get them. there are some shortages on these tubes now...due to China plants coming back on line after covid.

Agree with your comments, have 3 quad sets of GL 88s; they are nice, but they are really no competition for the WE KT88 Red base tubes.
if you opt for the red base WE 6SN7s, they wont be as big a change as the output valves, but still quite noticeable.

Right now, the Shuguang WE KT88 plus  red base are the most organic natural, open and relaxed sounding K88 I have heard, bare none, and I have tried every current and past production KT88.

The PSVANE gray glass KTa88s are good, but the red base WE KT88s are better.

prior to the WE KZZT88 plus  I was using the Shugang Nature sound KT88s in my 200. they are nice but a step down from the red base WE KT88s.

As a side note, I also have a VAC Auricle and use the WE 6CA7 plus fat bottles in it. Best sounding EL34/6CA7 I have tried. head and shoulders above anything else.
The boys at Shuguang have really done their homework on these.
best
 





I can't comment on the preamp, but for the power amp, shuguang WE-KT88 plus and their WE6SN7 red base fat bottles.

most open, organic sounding KT88 I have tried.