Vertex Effects Ultra Phonics Special Overdrive
Ultraphonix MKII
- Voiced alongside four Dumble™ ODS amps ranging from 1970's-1990's
- Quintessential D*style tone, note bloom, & harmonic overtones
- 100% Analog Circuitry
- Mechanical "True Bypass" Switching
- Assembled in California
- 9VDC center-negative power operation (adapter not included)