Both Kondo amps are going too sound clearly better than with the GE’s. Undoubtedly you are going to be very impressed!I finally found four Amperex 211s closely matched/tested. They will be arriving this week. I will be running the Amperex in my Kagura mono amps. Also have two RCAs on the way for the Ongaku. I've been running GE's in both the Ongaku and the Kaguras. Looking forward to the RCAs and Amperex.
I also just set up the TW/Red Sparrow on my VYGER Atlantis and it has rejuvenated me![]()
In my experience, Amperex are two steps up sonically from RCA’s. I would not call the AMPEREX warm. I feel like they’re pretty neutral just in another league sonically from GE or RCA in all aspects especially dynamics and resolution.So, I have gleaned from the internet that the RCA 211 is the warmest high performing 211 tube out there. Where will the 211 aficionados place the Amperex 211 on that scale of tonal warmth?
Maybe someone may have a different opinion? If possible?Actually, the United Electronics 211 is the warmest, most exotic, and most extraordinary-sounding 211 tube—certainly not the RCA. Amperex isn’t a regular 211 tube, and as far as I know, Kondo does not recommend using it in the Ongaku or Kagura, just like the GZ37 is not recommended as a substitute for the GZ34.
I compared UE directly against RCA and GE. The RCA isn’t even close to the UE, and I’ve heard multiple pairs of both. Exotic and warm isn’t my preferred sound, but if that’s what you’re after, the UE is the ultimate 211 tube. You’re lucky if you can find a pair.
Recently, the local Kondo dealer sold three or four pairs to a customer—pairs that came directly from the Kondo factory long time ago and tested at 125% emission. I know because I tested them myself on the Amplitrex.
I'm in search of a single tube. I'm not using them in an amplifier but rather in a rectifier replacement device so I get to mix and match. I'm looking to pair it with a recently acquired Telefunken RS237Actually, the United Electronics 211 is the warmest, most exotic, and most extraordinary-sounding 211 tube—certainly not the RCA. Amperex isn’t a regular 211 tube, and as far as I know, Kondo does not recommend using it in the Ongaku or Kagura, just like the GZ37 is not recommended as a substitute for the GZ34.
I compared UE directly against RCA and GE. The RCA isn’t even close to the UE, and I’ve heard multiple pairs of both. Exotic and warm isn’t my preferred sound, but if that’s what you’re after, the UE is the ultimate 211 tube. You’re lucky if you can find a pair.
Recently, the local Kondo dealer sold three or four pairs to a customer—pairs that came directly from the Kondo factory long time ago and tested at 125% emission. I know because I tested them myself on the Amplitrex.
The eBay crapshoot gamble, I suspectWhere are you guys getting quads, let alone pairs, of balanced RCAs?
Or is this a secret because of increasing unobtanium status of such tubes?
I've seen a vendor in Vietnam selling Telefunken RS-237 tubes who won't cover refunds on shipping damage.
Otoh, I can drive to the AN factory in Southern England and pick up pristine 211s (242s actually).
Fascinating that Kondo directly advise against the Amperex. From everything I can glean, Dejan the Nat designer voiced the SE2SE monos that I use around the GE 211, my dealer as close to directly saying he advised against swapping out GEs for any other tubes.Actually, the United Electronics 211 is the warmest, most exotic, and most extraordinary-sounding 211 tube—certainly not the RCA. Amperex isn’t a regular 211 tube, and as far as I know, Kondo does not recommend using it in the Ongaku or Kagura, just like the GZ37 is not recommended as a substitute for the GZ34.
I compared UE directly against RCA and GE. The RCA isn’t even close to the UE, and I’ve heard multiple pairs of both. Exotic and warm isn’t my preferred sound, but if that’s what you’re after, the UE is the ultimate 211 tube. You’re lucky if you can find a pair.
Recently, the local Kondo dealer sold three or four pairs to a customer—pairs that came directly from the Kondo factory long time ago and tested at 125% emission. I know because I tested them myself on the Amplitrex.
Thank you, someone finally comes out to bat for the "lowly" GE 211.I have Ongaku and tube i have GE and RCA
Not founded UE and Amperex
I like GE because is neutral and sound is good
Rca has magic mid and very natural but find too warm and little fuller mid bass
Actually, the United Electronics 211 is the warmest, most exotic, and most extraordinary-sounding 211 tube—certainly not the RCA. Amperex isn’t a regular 211 tube, and as far as I know, Kondo does not recommend using it in the Ongaku or Kagura, just like the GZ37 is not recommended as a substitute for the GZ34.
I compared UE directly against RCA and GE. The RCA isn’t even close to the UE, and I’ve heard multiple pairs of both. Exotic and warm isn’t my preferred sound, but if that’s what you’re after, the UE is the ultimate 211 tube. You’re lucky if you can find a pair.
Recently, the local Kondo dealer sold three or four pairs to a customer—pairs that came directly from the Kondo factory long time ago and tested at 125% emission. I know because I tested them myself on the Amplitrex.
Maybe someone may have a different opinion? If possible?
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