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Radial EngineeringJDV-Pre Mic Instrument Pre

Item#
N12-1424
$749.99

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Radial JDV-Pre

The Radial JDV-Pre is one of the eight modules designed to be comprise the Radial Workhorse Rack and Mixer System that combines the popular 500 series platform with an incredibly flexible patching system to let you create the ultimate studio environment.

The Radial JDV-Pre is a unique preamplifier designed specifically to capture the natural tone and distinct character of the instrument. This may sound like another 'marketing line', but unlike mic preamplifiers that are centered on 'the microphone', the JDV-Pre is completely focused on the various types of pickups used while transferring the signal without introducing distortion or artifact of any type.

The design begins with a 100% discreet class-A amplifier for optimal signal transfer. But unlike all other amplifier designs, the JDV-Pre's front end is completely void of the negative feedback loops normally used to stabilize the circuit. This revolutionary design eliminates the use of phase-cancellation which inevitably degrades the signal. This is augmented with Drag Control load correction that allows the engineer to optimize the load on the instrument pickup for the most natural rendering.

The quest for perfection does not stop there. When the impedance is set for piezo pickups, the JDV-Pre remains unbelievably quiet. Accustate gain control not only allows complete freedom over the signal path, but retains the signal-to-noise ratio at all levels. Acoustic instruments are further advantaged with a fully variable high-pass filter that gently rolls of the low end to eliminate troublesome body resonance while allowing each instrument to sit more comfortably in the mix. To address instrument microphones, the JDV-Pre features a transformer coupled balanced mic input with available 48V phantom power for condenser microphones. Connection is made via standard 500 series rack XLR input.

JDV-Pre Features

  • 100% discrete class-A instrument and mic preamp
  • Feed forward front-end, void of negative feedback
  • AccuState gain control for low noise at all levels
  • Variable low frequency cut for acoustic instruments
  • Circuit type: 100% discrete, class-A input
  • Frequency response: 20Hz ~ 20KHz +0/-4dB
  • Dynamic range: >93dB
  • Equivalent input noise: -90dBu
  • Maximum gain: +46dB
  • Intermodulation distortion: <1% @ +4dB
  • THD + Noise: <0.05% @ +4dB
  • Input impedance (1/4" input): 3.9 megΩ (Drag off)
  • Input impedance (1/4" input) with Drag™: 22k ~ 500kΩ
  • Input impedance (XLR Input): 7kΩ
  • Input impedance (XLR Input) with Drag™: 450 ~ 2.7kΩ
  • High pass filter: Variable from 5Hz to 2kHz
  • Omniport: Low Z balanced output, unity gain
  • Power requirement: 80mA
  • Phantom power: 48V, 10mA
  • Weight: 1.5lbs (0.7Kg)
  • Size: 9 x 6.5 x 2 (inches)
  • Warranty: 3 Years, transferable
Radial Engineering JDV-Pre Mic Instrument Pre Reviews