Radial Powertube Tube Preamplifier

Radial PowerTube: Vintage Tube Character for 500-Series Racks

The Radial PowerTube is a 500-series tube microphone preamplifier designed to capture the essence of your voice or instrument while adding the rich harmonics, warmth, and character of a transformer-coupled tube circuit. With its high-voltage 12AX7 tube drive and 60dB of gain, the PowerTube delivers a vintage tube amplifier experience in a single-wide module that fits all 500-series rack formats.

Key Features:

High-Voltage 12AX7 Tube Drive: The PowerTube features a high-voltage 12AX7 tube circuit that provides the warmth and harmonics associated with vintage tube amplifiers. The non-radiating charge pump supplies 140 volts to the tube, delivering the excitement and character of a high-voltage tube amp.

Smooth-Sounding Jensen Transformer Input: The PowerTube is equipped with an ultra-low-noise Jensen input transformer known for its near-perfect frequency response and the warm Bessel curve it imparts to the signal.

Hand-Inserted 100% Discrete Class-A Electronics: The PowerTube utilizes 100% discrete class-A electronics for pristine audio quality and transparency, allowing you to capture the true essence of your source.

Single-Wide Module for 500-Series Racks: The PowerTube is designed to fit inside the Radial Workhorse and other 500-series racks, making it a versatile addition to your recording setup.

Variable Trim and Gain Controls: To optimize your signal-to-noise ratio, the PowerTube offers fully variable trim and gain controls. A 10-segment LED bar graph provides visual feedback, and you're encouraged to drive the PowerTube into the red for added grit, harmonic content, and distortion.

Air Function: Activating the Air function adds a slight edge to male vocals or sparkle to acoustic instruments, enhancing the sonic character of your recordings.

High-Pass Filter: The PowerTube includes a high-pass filter to tame low-frequency resonance and further shape your sound.

Additional Tonebone Distortion Tube: The PowerTube comes factory-loaded with a select 12AX7 tube and includes a second Tonebone distortion pedal tube for adding even more grit and character to your recordings.

The Radial PowerTube allows you to infuse your recordings with the character and warmth of a vintage tube preamp while maintaining exceptional audio quality. Whether you're tracking vocals, guitars, or other instruments, the PowerTube delivers true vintage tube character without the noise.