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RadialWorkhorse PowerTube 500 Mic Preamp - B-Stock

SKU: R700-0115-00-BSTOCK

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£597.00 (Ex VAT)

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.

Technical Specification

  • Audio circuit type100% discrete class A with 12AX7 tube drive
  • TransformerJensen JT-115KE
  • Frequency response20Hz ~ 20KHz +0/-1dB
  • Dynamic range>93dB
  • Gain+75dB when used with Workhorse
  • Total harmonic distortion0.05%
  • Intermodulation Distortion0.01%
  • Input Impedance900Ω
  • Output Impedance200Ω
  • Common Mode Rejection Ratio>84dB
  • Equivalent Input Noise-128dBu @ maximum gain
  • Maximum Output+22dBu
  • Data Compression235mA
  • Input/Output ConnectorsXLR
  • Weight1.5lbs (0.7Kg)

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