Well, it wasn't an SP 17, it was an LS17SE. If there is anything, and I mean anything the LS2B MKII has taught me over the years, and it's almost 25, is that it's sound and musical involvement is directly related to the vacuum tube in it. Chinese or AR 6DJ8, yawn, Bugle Boy, Valvo... I could go on but I have had them ALL in here at one time or another in the last 15 years. It used to be simple, a Siemens and Halske grey plate 6922 from late 1950 to very early 1960 was King, until a pinched waist 1959 Valvo took over. The real problem with these vintage tubes ... and there are no good Siemens and Halske 6922 Cca's left, is that they don;t last but a few hundred hours at best. Too old, vacuum about compromised and heat cycles kill them and they get weak in the highs and bass. Seems a 1975 Reflector silver wire is a fine replacement for that, maybe even a better replacement since I have one now painting a beautiful stage in the middle of my room with great detail and a bottom end to die for.
Anything that can't be shot out in my room can't come here.
