Radial Engineering PowerTube 500 Series Tube Preamplifier

100% Discrete class-A with Jensen transformer.




The Radial PowerTube is an 'old school' 100%
discrete class-A vacuum tube microphone amplifier intended to capture
the essence of the voice or instrument while adding the rich harmonics,
warmth, and character of a transformer coupled tube circuit.

Designed
to fit inside the Radial Workhorse and other 500 series racks, the
'single-wide' PowerTube begins with an ultra low-noise Jensen input
transformer. This exhibits near perfect frequency response while
producing the warm Bessel curve Jensen is legendary for. The signal is
then amplified via a select 12AX7 tube using an innovative non-radiating
charge pump that supplies 140 volts to the tube to deliver the
excitement and character of a high-voltage vintage tube amplifier. This
feeds a class-A balanced output stage that together, can produce as much
as 60dB of gain. This makes the PowerTube ideal for use with all
microphones.

Features include an easy-access front panel XLR
input with a safely recessed 48V phantom power switch. To optimize
signal-to-noise the PowerTube is equipped with fully variable trim and
gain controls. A 10 segment LED bar graph provides visual feedback and
driving the PowerTube into the red is encouraged. This increases the
grit, harmonic content and distortion. For even more character,
activating the Air adds a slight edge to a male vocal or sparkle on an
acoustic guitar. Low frequency resonance is easily tamed using the
high-pass filter. For added pleasure, the PowerTube comes factory-loaded
with a select 12AX7 tube along with a second Tonebone distortion pedal
tube for more grit and madness.




Features

Single wide module fits all 500 series rack formats
High voltage 12AX7 tube drive with 60dB of gain
Smooth sounding Jensen Transformer input
Hand inserted 100% discrete class-A electronics




The true character of a vintage tube preamp without the noise. Add it to your 500 Series rack today!





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