Aric Audio Super 2A3 owners - favorite tubes?


Hello all,

I've been enjoying my new set of Aric Audio amps (the Super 6SN7 linestage + Super 2A3 amp) and have been playing around with different tubes. I am curious what tubes anyone who owns either of these prefers.

I swapped from the stock 5U4GB to some NOS RCA 5U4Gs, but not sure if there's anything better out there that owners may prefer rectifier-wise. Asking Aric, he said GB or G works fine, but beyond that didn't offer any other alternatives as far as compatible tube options.

For my 2A3 tubes, I have a set of NOS Svetlana SV-2A3 (2C4C) and EML 2a3-S Meshplates and prefer the EMLs. The Svetlanas sound nice - they are a little more 'warm' sounding to me - but they lack the detail and wide holographic soundstage that the EMLs produce.

For the 6SN7 tubes on both the pre-amp and the amplifier (3 total), I've tried Sylvania JAN 6SN7GT VT-231 2 Hole Bad Boy, Black Plates an d NOS RCA JAN 5692 6SN7 (red base) tubes and prefer the Sylvania's by a mile. Swapping from the Sylvanias to the RCAs, bass thinned out quite a bit. Detail was great, and mid/highs were nice, but the Sylvanias are overall much nicer.

What have you tried and liked / tried and kept?

128x128mmcgill829

The EML 300B/2.5's sell for <$900/pair.

Not familiar with them, just an FYI on the listed selling price.

 

DeKay

300b won't work at it best in 2a3 amplifier. 

Different,

1. Load resistance 2.5k , need 3.5k

2. Different self bias resistance value.

3. Different plate voltage. 

4. Need more voltage swing for driver tubes.

Alex:

The EML 300B discussed specs 2.5 filament voltage.

Not certain why it's named 300B/2.5 unless it's because of the larger (glass envelope) size.

There was also a 300B/2.5 made in China, but I forget the manufacturer (same larger glass envelope).

 

DeKay

 

Hi @dekay 

You are right. I read about this tube on the EML site. Yes it is designed to work in 2a3 amplifiers. It is more like 2a3, just more powerful.

@alexberger I have actually looked into the Linlai e-6SN7. From reviews, they seem to be superb tubes. A bit spendy for new production, but if they have the performance to back it up, then it is worth it. In the Aric, the pre-amp tubes make an enormous difference in the overall sound. There's also plenty of space to accommodate those larger tubes from Linlai. I'll have to see if Grant Fidelity will do a trio for a deal versus buying a pair + overpriced single.