Martin OM-42 Standard Speaker Harmonic – Frequency-based modulation with

Harmonic – Frequency-based modulation with two distinct variations

In a striking Noble Blue finish

Multiple Expression Pedal Inputs

The GPC-X1E Black also comes with satin tuners and Martin E-1 electronics

Martin OM-42 Standard Speaker Harmonic – Frequency-based modulation withMartin OM 42 Standard The Martin OM 42 is a trusted blend of tone and craftsmanship, designed for players who value exceptional sound and stunning visual details. Its Auditorium body size delivers balanced tone across all six strings, with deep bass, rich overtones, and clear trebles that suit any playing style. Handcrafted with a solid spruce top and solid East Indian rosewood back and sides, the OM 42 offers a resonant voice with enhanced projection