I’ve used the vintage ECC83’s in all my tube amps over the years and they are by far the best I’ve ever used. Fantastic detail and decay, great soundstage, etc.
They're my go-to when possible.
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telefunken small signal tubes (real ones from back in the day, not the modern branded tele’s) are excellent, though they are in the clear and precise school of sound with excellent air and imaging, not very overty tubey in their sonic nature to me they are not better than other top european tubes from that era, mazda’s adzam’s siemens cifte’s dutch amperex and even hungarian tungsrams somehow the tele’s became ’legendary’ and demand for them went off the charts... made them poor values to buy, even in the 80’s and 90’s |
If Brent has Telefunken 12AU7s trust his recommendation. I've used Sylvania, vintage RCA, and vintage Tungsol 12AU7s in a Rogue linestage over some 20 years, each with an improvement in clarity and quiet background, respectively. The Telefunken blue tip medical application tubes from Brent are the best for clarity, quiet background and dynamics. They are not warm but neither are they cold or bright. Their $850 price is offset by the fact they should last ten thousand hours. The system was upgraded from two way speakers and 40WPC amplification to Sasha II's and a VAC 202 stereo amplifier. The Telefunkens do a great job of providing a straight wire with gain performance. Of course this is subjective but I'd put faith in Brent's opinion.
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@inna Re the ECC83/12AX7: Add in great sound-staging, imaging, fine detail retrieval, superb dynamics, an absence of grain or harshness and most importantly, flat frequency response. Ribbed plates are a little brighter while the smooth plates have a slightly smoother top end.
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