Radial Engineering PowerTube 500

500 Series single-channel tube microphone preamplifier with Jensen transformer
MFR# R700 0115
Radial Engineering PowerTube 500
Radial Engineering PowerTube 500 Radial Engineering PowerTube 500


No interest if paid in full within 12 months Learn more
Special Order
Note: This item may not be returnable or could require a restocking fee. Contact one of our Audio Consultants for more details. Due to the special nature of this item, we order each unit fresh from the factory, exclusively for you! Lead times may vary so please chat, call or email for up-to-date inventory status.

Please note: This item requires a 500 Series Rack for operation. Shop racks.

Rich-sounding tube preamp, 500 Series optimized

When you’re after a dose of warmth and character, the PowerTube preamplifier delivers. Packed into the smart, space-conscious 500 Series format, the fully discrete Radial Engineering PowerTube offers the classic sound of a 12AX7-fueled tube preamp complemented by a Jensen transformer. And with selectable 48V phantom power, the PowerTube puts old-school tube tone at the ready for your condensers and ribbons alike.

12AX7 and Jensen transformer for classic tube warmth
At the heart of the Radial Engineering PowerTube mic preamp is a specially designed 12AX7 tube, coupled with a Jensen transformer. This low-noise, rich-character combination pairs nicely with a wide range of microphones and represents an oustanding value for your 500 Series setup.

Fully variable gain control with metering and more
The PowerTube makes the most out of its compact format, giving you variable input trim and gain control as well as selectable low cut, presence, and 48V phantom power switches. Visual feedback comes in the form of a bright 10-segment LED gain meter as well as a notice light indicating when 48V phantom power is engaged.

Convenient 500 Series format
Canada-based Radial Engineering has embraced the 500 Series format, contributing a range of excellent-sounding (and exceptionally made) tonal tools and sonic options to the popular modular format. The PowerTube is another fine example of Radial at its best, ready to go in any 500 Series compatible rack.

Radial Engineering Power Tube features:

  • Single-channel tube microphone preamplifier
  • 500 Series modular format
  • 12AX7 tube
  • Jensen transformer
  • Fully variable gain control
  • 10-segment LED gain metering
  • Variable trim control
  • Low-cut and Presence switches
  • Selectable 48V phantom power
  • Fully discrete electronics

Additional Information

Condition New
Channels Single-Channel
Chassis Module
Module Type 500 Series
Module Slot Count 1 Slot
Digital I/O No
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