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HomepageCables & AccessoriesD.I. › Radial Engineering McBoost
Radial Engineering McBoost

The Radial McBoost is a high performance mic signal booster designed to elevate the output of a typical dynamic microphone for greater transient response and boost ribbon mics.

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.
  • 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
  • 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 , 2.7k , 30k
    Clip level - input: -17dBu / -14Bu / -9dBu
    Clip level - output: +10dBu
    Noise floor: -95dBu / -98dBu / -113dBu
    Output impedance: 2.2k
    Intermodulation distortion: 0.01%
    Phase Deviation: 0° @ 20Hz, <10° @ 20kHz

    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

    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: .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
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    Eligible for free shipping in Canada. Learn more
    Additional information
    For more information about the McBoost, please visit the website of Radial Engineering
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