Radial Engineering

RA-PowerPre-500

Radial PowerPre 500 Series Mic Preamp Module

The Radial PowerPre™ is a high performance microphone preamplifier designed to be used with the Radial Workhorse and other 500 series modular racks. It features 100% discrete components for optimal signal transfer and employs a 'vintage' Hammond broadcast output transformer for warmth and exceptionally smooth tone.


    • Radial PowerPre 500 PRODUCT FEATURES:

      • Hand selected 100% discrete electronics
      • Hammond broadcast transformer output
      • AccuState™ low-noise input circuit
      • 3-position Vox control for added air or punch
    • Radial PowerPre 500 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, transformer coupled output

      Microphone Input:

      Accustate input fully variable gain control

      Current draw:

      130mA (maximum draw)

      Frequency response:

      20Hz ~ 20KHz +0/-1dB

      Input Impedance:

      2.2kΩ (1.5kΩ with pad)

      Mic preamp gain:

      +55dB

      Maximum gain:

      +70dB when used with Workhorse*

      Maximum output:

      +22dBu

      Output impedance:

      75O @ 1kHz

      Output type:

      Transformer isolated

      Common mode rejection (CMRR):

      >75dB

      Equivalent Input Noise (EIN):

      -122dBu @ maximum gain

      Dynamic range:

      >97dB

      Total Harmonic Distortion (THD+N):

      0.03% @ mid gain with +10dBu output

      Intermodulation distortion (IMD):

      0.012% @ 50dB gain with +10dBu output

      Instrument Input

       

      Omniport input Impedance:

      150kΩ, unbalanced*

      Instrument preamp gain:

      +55dB, unbalanced*

      Equivalent Input Noise (EIN):

      -95dBu, unbalanced*

      Total Harmonic Distortion (THD+N):

      0.05% @ mid gain with +10dB output

      Control Panel

       

      Meter:

      10 segment peak indicator with hold

      Pad:

      -15dB

      Polarity:

      Inverts pins 2 and 3 at XLR input*

      High-pass filter:

      150Hz cut off, -3dB @ 100Hz

      Vox Control:

      3 position preset EQ

      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

      Conditions:

      For use in dry locations only between 5°C and 40°C

      Warranty:

      3 years, transferable

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