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  • Home / Products / Radial Engineering PowerTube 500 Series Tube Preamp module
    500 Series - Radial PowerTube 500 Series Tube Preamp Module
    500 Series - Radial PowerTube 500 Series Tube Preamp Module
    500 Series - Radial PowerTube 500 Series Tube Preamp Module
    500 Series - Radial PowerTube 500 Series Tube Preamp Module
    $1,149.00$1,399.00

    Radial Engineering

    RA-Powertube-500

    Radial Engineering PowerTube 500 Series Tube Preamp module

    2 In Stock

    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.


    Type: 500 Series

      • Radial PowerTube PRODUCT FEATURES:

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

      • Radial PowerTube TECHNICAL SPECIFICATIONS:

        Specifications  
         
        Specifications are subject to change without notice.
        *Refers to use with Radial Workhorse rack and mixer
        Microphone Input  
        Circuit type:  100% discrete class A with 12AX7 tube drive 
        Microphone Input: Transformer coupled, Jensen JT-115KE
        Current draw: 235mA
        Frequency response: 20Hz ~ 20KHz +0/-1dB
        Input Impedance: 900Ω
        Mic preamp gain: +60dB
        Maximum gain: +75dB when used with Workhorse*
        Maximum output: +22dBu
        Output impedance: 200Ω
        Output type: 100% discrete Class-A FET
        Common mode rejection (CMRR): >84dB
        Equivalent Input Noise (EIN): -128dBu @ maximum gain
        Dynamic range: >93dB
        Total Harmonic Distortion (THD+N): 0.05%
        Intermodulation distortion (IMD): 0.011%
        Instrument Input  
        Omniport input Impedance: 150kΩ, unbalanced*
        Instrument preamp gain: +55dB, unbalanced*
        Equivalent Input Noise (EIN): -95dBu, unbalanced*
        Total Harmonic Distortion (THD+N): 0.1%
        Control Panel  
        Meter: 10 segment peak indicator with hold
        Pad: Variable
        Polarity: 180°
        High-pass filter: 250Hz cut-off, -3dB at 150Hz
        Air Control: Presence boost @5kHz
        Phantom power: 48VDC - 10mA (as supplied by 500 frame)
        XLR configuration: AES spec: pin-1 ground, pin-2 (+), pin-3 (-)
        Ground lift (rear panel): Lifts ground on front panel XLR input only
        Mechanical  
        Weight: 1.5lbs (0.7Kg)
        Shipping size: 9 x 6.5 x 2 (inches)
        Compliance (API): Yes
        Compliance (WHOS-Doc): Yes
        Warranty: 3 years, transferable
        Conditions: For use in dry locations only between 5°C and 40°C

      • Radial PowerTube SYSTEM REQUIREMENTS:

        500 Series compatible rack that meets power requirements.
    Need more info on the Radial PowerTube? Click HERE for the manufacturer's website >>>