The #39 is no longer just the legendary, mysterious (seemingly perpetually elusive), 80's Tim Caswell Marshall mod found on what "very well might be one of the most influential, and mysterious, amps in rock 'n' roll history," it is now a motorized pot, MIDI programmable and controllable 50/100 watt amp head boasting a totally analog signal path. 128 presets, and user customizable functions include 6 classic amp circuits: 1959 bright, 1959 normal, MK2 master, MK2 master with Stage 1 #39, MK2 master #39GL, and MK2 master #36, making this rugged "smart-head" simply irresistible. Quick NUMBER 39 link.

Still want just the mod minus the magic memory motors and cool circuit configuring? No worries string theorizers. The LEGACY "S.I.R. STOCK M39" MARSHALL MOD is still an option for customer supplied heads. Nothing wrong with baby steps: we know we'll get to you sooner or later...