Radial AC-Driver

Compact Acoustic Preamp


The Radial AC-Driver is an acoustic instrument preamp designed for use on stage, with helpful features to streamline your performance and ensure the best possible tone from your instrument.

  • Studio quality preamp and class-A buffer circuit
  • Balanced DI output to feed a PA or powered speaker
  • Mute footswitch for instrument changeovers
  • Notch filter and phase switch to reduce feedback

Great tone can be simple

The AC-Driver allows you to obtain great-sounding results in a short amount of time, with powerful easy-to-use controls that allow you to set your levels and reduce on-stage feedback. An adjustable low cut filter removes excessive low frequencies, while a 180° phase switch helps correct feedback build-up from hot spots on stage. A variable notch filter targets and removes specific problem frequencies, and a mute footswitch provides a way to silently tune on stage or change instruments without any popping or noise in the PA.

The AC-Driver is a compact high-performance preamp with a footswitch mute control and the ability to reduce feedback on stage. A proprietary response curve has been modeled after the popular PZ-Pre, which provides a warm yet detailed sonic signature that will flatter most acoustic instruments. Extremely low noise and distortion set the AC-Driver apart, with a 14-gauge steel housing and intuitive features that provide you with complete control over your live performance.

Audio circuit type: Class-A FET
Dynamic range: +107dBu
Input Impedance: 10 MΩ
Output Impedance: 4.4kΩ
Noise: -97dBu
Maximum Input: +10dBu
180° polarity reverse, Ground lift, Level Control
Input Connectors: 1/4″
Output Connectors: 1/4″, XLR
Construction: 14-gauge steel chassis
Size (L x W x D): 4.75″ x 3.75″ x 1.75″ (12.06 x 9.5 x 4.5cm)
Weight: 1.4lbs (0.63kg)
Shipping size (L x W x D): 6.25″ x 4.25″ x 3″ (15.8 x 10.8 x 7.6cm)
Shipping weight: 1.7lbs (0.77kg)
Power: 40mA, 9VDC (center pin negative)
Conditions: For use in dry locations only between 5°C and 40°C
Warranty: Radial 3-year, transferable


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