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RA-JDV-MK5
Radial Engineering JDV MK5 Super Direct Box
The JDV MK5 from Radial is a class A design, extremely high-performance 2-input active direct box and pre-amplifier. The key feature of the JDV MK5's design, is the ability for it to accept any type of instrument input across the two, making instrument swapping worry free, and extremely practical.
Type: DI Boxes
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RADIAL JDV MK5 PRODUCT FEATURES:
The design begins with 100% discrete electronics and a unique class-A circuit with zero phase-cancelling negative feedback front-end. This is augmented with Drag™ control load correction that lets you optimize the impedance that is being applied to the pickup along with extra rail voltage for an abundance of headroom. The result is virtually zero harmonic, phase and cross-point distortion resulting in the most natural rendering without coloration or artifact of any type.
Central to the design is the JDV's ability to handle any type of instrument. Input-1 is equally well suited for magnetic pickups or active instruments and is equipped with a balanced mic input with 48V phantom to accept instrument-mounted condenser mics. Input-2 adds another dimension with a selectable 10 meg-ohm input to properly load piezo transducers. Both inputs may be active at one time and mixed together using the front panel controls. These can then be phase-aligned using the built-in Radial Phazer for what can only be deemed the most natural sounding reproduction of an acoustic instrument ever.
Extra features include fully variable high-pass filters on each channel to eliminate excessive low frequency resonance, easy-read LED level meters, Jensen Transformer isolated outputs to eliminate hum and buzz caused by ground loops and a +4dB line level output for direct recording. Switching between channels may be done using a front panel switch or via the optional JR-2 remote control.
The Radial JDV Mk5... the only DI you will never hear! -
RADIAL JDV MK5 TECHNICAL SPECIFICATIONS:
Instrument input circuit:
without negative feedback
Instrument clip level:
+18dBu
Microphone input circuit:
Low noise integrated circuit
Microphone clip level:
-11dBu
Frequency response
20Hz - 20KHz
Dynamic range:
107db
Equivalent input noise:
-90dbu
Common mode rejection:
-80dB
THD+N:
0.004%
Clip level - output:
+17dBu
Gain - instrument input:
+25db
Gain - line level boost:
+20dB
Gain - microphone input:
+25db
Input Impedance:
Drag on: Variable from 22K Ω ~ 500K Ω
Drag off: 10M Ω
Output impedance at XLR:
400 ΩPower:
External 100V - 240V AC with 48V phantom
Construction:
14-gauge steel chassis and outer shell
Finish:
Durable powder coat
Size:
Size: 5" x 6.25" x 2" (127 x 159 x 51mm)
Weight:
2.80lbs (1.28 kg)
Conditions:
For use in dry locations only between 5°C and 40°C