Gumby- I have had a couple of Audible Illusions M3A pre-amps (an early version made in 95 w/standard phono section and a '99 w/"Gold" board) and neither had the tubes soldered in. Maybe some of the older M3's (not "A" versions) or the older L1's had soldered tubes- I don't know about those.
Anyway, the "gold" phono section is a substantial improvement over the standard phono section, but is only for low-output cartridges while the standard phono section handles cartridges w/ outputs >.9 mV. Both type phono sections are tubed.
The great thing about either is that you get a world class pre-amp along with a great (gold) phono section or very good (standard) phono section. And it is equally at home with most SS or tube amps. Excellent value.
Regards
Jim
Anyway, the "gold" phono section is a substantial improvement over the standard phono section, but is only for low-output cartridges while the standard phono section handles cartridges w/ outputs >.9 mV. Both type phono sections are tubed.
The great thing about either is that you get a world class pre-amp along with a great (gold) phono section or very good (standard) phono section. And it is equally at home with most SS or tube amps. Excellent value.
Regards
Jim