Martin Guitars MA540 Acoustic Guitar Strings Bulk 25 Sets Light (12-54) blue-gradation The ADX12 operates on phantom

The ADX12 operates on phantom power of 18 - 52 Volts and is available in a non-reflective black matte finish

Adjustable headphone connections

Dual angle pole-mount provides optimal coverage and minimal reflections in most venues

The height adjustment is variable thanks to an integrated pneumatic spring

Standards Converter on Each Input

Martin Guitars MA540 Acoustic Guitar Strings Bulk 25 Sets Light (12-54) blue-gradation The ADX12 operates on phantomMartin Authentic Acoustic Superior Performance SP strings feature higher tensile strength and tin plated core wire on all six strings that enable a fuller and more balanced tone, quicker response and increased tuning stability. Our impeccable standards for acoustic guitar tone are embedded in our string design and precision manufacturing process. That's why we make our own. Bulk Boxes of 25 Sets