With the Siemens CCa's(pre 1969 ONLY- the later CCa was extremely strident), you will hear the music, not the system. Transparent, extended in both directions(without bloat of glare), liquid midrange, excellent imaging and soundstage. They were a tube specially built, tested and selected for silence and durability(10kHr) for the German Telephone service. Telefunken E188CC/7308 tubes are also very transparent(no added warmth or microphonic colorations). Of course- Some enjoy the "tubey", "warm", "sugary" colorations of British(Mullard, Brimar, etc.) tubes. The Amperex Company made some nice tubes that fill the middle ground. Be certain that whomever you purchase tubes from tests and certifies them as "low noise/preamp grade" tubes. I've got six CCa's in my BAT VK-D5, but- everyone must satisfy their own tastes. Happy listening!
6922 Recommendation for my BAT VK-3iX Preamp
Can someone recommend a set of good 6922s for my BAT VK-3iX? Currently, I have NOS Tesla goldpin ECC88s. They sound good especially for piano music. However, violin music still has room to improve. I am wondering if getting a set of different 6922s will improve the violin, without degrading piano of course. :-)
Thanks.
Thanks.