I have been unable to locate a used quad of anything much less the KR 2A3 HP anywhere to replace my unlamented EML quads. I had hoped that somewhere somebody would have a storewide discount for BF but apparently that does not happen for tubes(thanks Woo). So I need a little advice and opinions.
My choices: 1) Bite the bullet and pay full price for the KR HP tubes. No one talks about the standard KRs so don't know if they are a viable option. I am feeling the shadow of diminishing returns as they are just godawful expensive. $2590
2) RCA 2A3 I know where I can get a quad of NOS Black Plate Amplitrex tested with matching 1951 dates for $900-1000. The seller has perfect feedback and offers 30 day returns.
3) Psvane ACME 2A3 $1100-$1200 People seem to like them but have concerns about reliability
4) Sophia Electric There has been some talk on here about the Sophia rectifiers but none about the power tubes. I really liked the Sophia Princess 300B I had in my WA5. Sophia offers a 2A3 Mesh for $900. Sophia also offers 3 different models of 300B 2.5v from $900-$1500.
Any thoughts or alternatives are welcome. Hope you all had a great Thanksgiving!
I can only speak to the KR HPs and Psvane ACME 2A3 as those are the ones I have.
The ACME 2A3 works really well with the LCD-4. I think the KRs with the LCD-4 are too much of a good thing, but that's just in my opinion. I haven't tried the LCD-5, but from what I've read, it's brighter than the LCD-4 - so unsure what to recommend - but you have, so you can make a better judgement. I haven't had any reliability issue with the PSVane but it depends on the sound your after - a bit more energy (ACME), or a bit more bloom (KR). Also, from what I've read the RCAs might provide a nice balance - but I have never heard them.