Try 12AT7. The 6922 (to my ears) makes the midrange too forward. The Telfunkins and Mullards (NOS) are the best sounding.
Tube replacement for Audible Illusions
Hello, I have had my Aud. Ill.L-1 preamp for about 5 years now, I've replaced the tubes three times with what it came with,Sovtec premium grade 6922's[so they say] Has anybody had any luck with other tubes that might be better than these? If so, how do they compare? Thanks for any info.