Yes. I recently installed matched and balanced (section-matched) pairs of both types (Genalex re-issue ECC82's and ECC83's) in my Chinese-made Paxthon VTA-160 amplifier, in which I also have a matched octet of SED "Winged C" EL34's. I have been very pleased with the results.
Previously the small signal tubes were a pair of used 1960's vintage Telefunken 12AX7's (which measured and performed well until one of them developed a problem, which prompted my purchase of the Gold Lion's), and a pair of NOS 1950's RCA 5963's (which had never been used, and measured well, but with a possibly significant mismatch between the two triode sections in each tube).
In comparison, the most major differences were that the Gold Lion's eliminated some congestion I had been sensing on high volume peaks, and provided lower noise levels.
I purchased them from TheTubeStore.com, which optionally offers BOTH matching of tubes and matching of triode sections within each tube ("balancing"). The purchase worked out very conveniently, even though they are in Canada and I am in the USA.
I have no idea how they compare with the EH's.
Good luck!
-- Al
Previously the small signal tubes were a pair of used 1960's vintage Telefunken 12AX7's (which measured and performed well until one of them developed a problem, which prompted my purchase of the Gold Lion's), and a pair of NOS 1950's RCA 5963's (which had never been used, and measured well, but with a possibly significant mismatch between the two triode sections in each tube).
In comparison, the most major differences were that the Gold Lion's eliminated some congestion I had been sensing on high volume peaks, and provided lower noise levels.
I purchased them from TheTubeStore.com, which optionally offers BOTH matching of tubes and matching of triode sections within each tube ("balancing"). The purchase worked out very conveniently, even though they are in Canada and I am in the USA.
I have no idea how they compare with the EH's.
Good luck!
-- Al