Radial Engineering PowerTube - Vacuum Tube Microphone Preamp
SKU: R700-0115-00
UPC: 676101040476
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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.
FEATURES:
• High voltage 12AX7 tube gain stage
• Jensen transformer coupled input
• 100% discrete with over +65dB gain
• 10 segment LED bar-graph indicator
APPLICATIONS:
• The most demanding studio recording
• Warming up tracks by using the tube
• Adding character & grit to the voice
• Direct instrument recording with Omniport
COOL FACTORS:
• Single space 500 series design
• Fits in all ‘Lunchbox’ type racks
• Sounds absolutely amazing
• Built in filters to optimize signal path
Technical Specification
- 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 0.01%
- Input Impedance 900Ω
- Output Impedance 200Ω
- Common Mode Rejection Ratio >84dB
- Equivalent Input Noise -128dBu @ maximum gain
- Maximum Output +22dBu
- Data Compression 235mA
- 180° polarity reverse, Ground lift, HPF, Level Control, Phantom Power, OmniPort
- Input Connectors XLR
- Output Connectors XLR
- 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
Related Products
Workhorse Powerpre 500 Mic Preamp (R700-0110-00)
£623.03
Out of Stock - Available to Order
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