2. amps-preamps
  3. 1260161476

Supertube Question

I recently took the plunge and bought 6H30P-DR "Supertubes" for my ARC LS26...I couldn't be happier. I'm not good with audiophile superlatives, but in Spinal Tap lingo, it now "goes to 11".

The improvements are so exciting that now I'm wondering what improvements might be gained from using Supertubes in my ARC VT 100iii...which has 2 6H30 tubes per channel, used as "drivers", whatever that is. I'd appreciate hearing from anyone who understands amp architecture and could explain whether tubes used as "drivers" would likely benefit from the upgrade as much as the preamp.

Thanks for all your observations, and Merry Christmas to all...
77jovian
plato
1,543 posts
 
Can you simply swap out 6922-variety tubes for the 6H30's or did you need to have the circuit modified to do that?
mofimadness's avatar
mofimadness
4,992 posts
 
6H30's can't be swapped in & out for 6DJ8 and equiv. And vice versa. Different voltages and pinouts.

The driver tube in an amplifier, IMHO, would not benefit from a "DR" upgrade. I really don't think you'd hear a difference, but I've never tried?

Theo, you're welcome for the advice to upgrade to the "DR" tube :-) Told you so...
mniquet's avatar
mniquet
10 posts
 
I've also replaced the original 6H30 Sovtech tubes in my LS26 with the 6H30-DR. Like every tuning move, the result depends on the other components and I'm not sure that move would please to everybody. If there is some "slack" in the bass of your system, the DR will help with its more compact overall sound, but if your amp is very tight already (my Classé IS tight), you could find it's like too much of a good thing.

The DR also features a stunning contrast between tones of instruments and a better focus. I feel the extreme high frequency area is affected: too tight once again.
More to discover