Vertex Steel String MKII
with box
Features include
Incredible touch sensitivity, fatness, and top-end spank
Based on serial number #001 of the legendary 6L6 Dumble SSS
33% smaller than the Steel String MKI
Added Jazz/Rock toggle to voice the low-end EQ
Flexible gain control allows for use as a Clean Boost or Overdrive
9 to 18-volt operation (adapter not included, 18V provides more clean headroom)
True Bypass Switching (mechanical)
Designed in California