Hi Wayne, a matched pair of EH 2A3 tubes is $89.95. I received them yesterday and they sound very articulate in my Moondog amps. They don't sound bass heavy as the Sovteks can, but they have plenty of bass and sound good through out the frequencies, a very even and smooth sound. They just sound like real music according to my friend who plays in the Austin Symphony - he thinks they are way better than the Sovteks. The EH 6SN7's, are 11.95 each, $5.00 each for tube matcing, and may have something to do with the the bass - not sure.These are new tubes for EH and I'm quite pleased. I do intend to get a new pair of the Sovteks and see how they compare....old tubes vs. new tubes isn't a good comparison. Comparing tubes is a bit easier with mono amps.
I did listen to the Valve Art tubes and just didn't like them. I'm still amazed at the articulation of the EH tubes. Hopefully they will sound even better after they get about 500 hours on them.
If you get the EH 2A3's, let me know how they sound in your system.