Radial PowerTube Tube Microphone Preamp
Description
Description
Radial PowerTube Tube Microphone Preamp
The PowerTube is a class-A vacuum tube microphone preamplifier that captures the essence of the original sound source while imparting the rich harmonics, warmth, and character of a transformer-coupled tube circuit. The PowerTube leverages the warmth and tone of a 12AX7 vacuum 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, making the PowerTube ideal for use with all microphones. For even more character, activating the Air switch adds a slight edge to a vocal track or sparkle on acoustic guitar, while low frequency resonance is easily tamed using the high-pass filter.
Key Features
- High voltage 12AX7 tube drive with 60dB of gain
- Smooth sounding Jensen transformer input
- Hand selected 100% discrete class-A electronics
- Tube circuitry provides vintage warmth and character
Technical Specifications
Audio circuit type
100% discrete class A with 12AX7 tube drive
Transformer
Jensen JT-115KE
Frequency response
20Hz ~ 20KHz +0/-1dB
Dynamic range
>93dB
Gain
+75dB when used with Workhorse*
Total harmonic distortion
0.05%
Intermodulation Distortion
0.011%
Input Impedance
900
Output Impedance
200
Common Mode Rejection Ratio
>84dB
Equivalent Input Noise
-128dBu @ maximum gain
Maximum Output
+22dBu
Data Compression
235mA
Input Connectors
XLR
Output Connectors
XLR
General
Weight
1.5lbs (0.7Kg)
Shipping size (L x W x D)
9 x 6.5 x 2 (inches)
Conditions
For use in dry locations only between 5°C and 40°C
Warranty
Radial 3-year, transferable
Payment & Security
Payment methods
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