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Radial Engineering

RA-McBoost

Radial McBoost Microphone Signal Intensifier

The Radial McBoost Microphone Signal Intensifier has been designed to boost the gain when using ribbon and dynamic microphones. An outstanding option for older ribbon microphones in particular. The McBoost from Radial, has various impedance input settings to match your microphone of choice when recording. This class A design can offer as much as 25dB of gain.


    • Radial McBoost PRODUCT FEATURES:

      - 25dB signal booster for dynamic & ribbon mics
      - Extends dynamic range and microphone reach
      - Uses standard 48V phantom for power
      - 3-position load switch and high-pass filter

      The Radial McBoost™ is a high performance microphone signal booster designed to elevate the output of a typical dynamic microphone for greater transient response and boost the signal of a low-output ribbon mic to bring it up to a usable level for mixing consoles or preamps that may not provide sufficient gain.

      The 100% discrete class-A circuit design begins with a dual-transistor J-FET circuit to produce up to 25dB of gain without introducing noise, color or artifact. Each individual transistor is carefully measured and batch-sorted to comply with the design specification to certify performance. As with all Radial™ products, the circuit board is then loaded into a 14-gauge, I-beam, reinforced steel enclosure to prevent outside stress from torquing which otherwise could lead to premature part failure. A book-end cover creates protective zones at each end to safeguard the switches, potentiometer and connectors from the rigours of the road.

      Merely connect the McBoost in-line using standard 3-pin XLRs and activate 48V phantom to provide power. Select between three impedance settings to optimize the response and then reduce low-frequency clutter with the 3-position high-pass filter. The McBoost will elevate the output to produce added clarity, excitement and extra drive for long cables whether you are in a recording studio, on a live concert stage or in a broadcast center.
    • Radial McBoost TECHNICAL SPECIFICATIONS:

      Specifications: 
      Audio circuit type: Class-A Differential FET/Bipolar Hybrid
      Frequency response: 7Hz to 30kHz
      Total harmonic distortion: 0.005% @-30dB
      Dynamic range: 105dB
      Maximum input: -6dBu
      Maximum gain: +25dB
      Equivalent input noise: -120dBu
      Input impedance: 600 Ω / 2.7k Ω / 30k Ω
      Clip level - input: -17dBu / -14Bu / -9dBu
      Clip level - output: +10dBu
      Noise floor: -95dBu / -98dBu / -113dBu
      Output impedance: 2.2k Ω
      Intermodulation distortion: 0.01%
      Phase Deviation: 0° @ 20Hz, <10° @ 20kHz
      Features: 
      Gain control: Variable from +4dB to +25dB
      High-pass filter: 100Hz and 55Hz @-3dB
      Filter slope: 6dB / Octave
      XLR configuration: Pin 2 + / Pin 3 - / Pin 1 Ground
      General: 
      Construction: 14 gauge steel chassis & outer shell
      Finish: Durable powder coat
      Size: (L x W x H) 4.2" x 2.76" x 1.68" (106.7 x 70.1 x 42.7mm)
      Weight: 0.5 lbs (0.23kg)
      Shipping size: (L x W x H) 6.25" x 4.25" x 3" (158.7 x 108 x 76.2mm)
      Shipping weight: 1.4lbs (0.64kg)
      Power: 48V phantom
      Conditions: For use in dry locations only between 5°C and 40°C
      Warranty: Radial 3-year, transferable
      Specifications are subject to change without notice.
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