Radial JDI Duplex Passive Direct Box
The Radial JDI direct box is the world’s finest passive DI. The JDI has been
optimized to handle extreme transients without introducing distortion or coloration
to the sound.
Because of the transformer, the JDI provides 100% isolation between the instrument
input side and the balanced output, eliminating hum and buzz caused by ground
loops. Ground loops are most prevalent when interfacing equipment with AC power
such as keyboards and guitar amplifiers. Most passive DIs sound terrible because
they use inexpensive iron or steel core transformers. This causes phase shift
at various frequencies known as group delay, which has the effect of making
bass sound indistinct and lack punch and causes mid-range to smear. This makes
mixing more difficult.
The Radial JDI employs a Jensen transformer with a nickel-laminated core. Nickel
does not retain a memory or polarity. This has the net effect of reducing phase
distortion, improving linearity and lowering harmonic distortion. Fix the problems;
you get great sound.
The Radial JDI does not require 48V phantom-power or a battery. You just plug
in and play. The JDI is also available in stereo (Radial JDI Duplex) and in
6 channels (Radial JD6) or may be rackmounted using the Radial J-Rak for up
to 8 units in 2 RUs.
Features:
• Best-sounding passive DI in the world • Authentic Jensen transformer
• Linear from 10Hz ~ 40kHz • Extraordinary level handling without distortion
• Built to survive the road • Ideal for acoustic guitars and basses • Keyboards,
modules and electronic drums • Great with high-output, electronic instruments
• Eliminates hum & buzz in sound systems • ‘Plug-&-play’ easy-to-use! • No battery
or phantom-power required • Impossible to overload! • Up to 8 may be rack-mounted
with the J-Rak • 3 year transferable warranty
| $ 899.00
$ 789.00
(shipping $12.00)
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Buy Now!
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Specifications - Type: Passive Jensen Transformer equipped
- Input impedance: Unbalanced 140k-Ohms typical
- Output impedance: Balanced 150 Ohms typical
- Frequency response: 10Hz to 40kHz
- Linear performance: < -0.22 dBr deviation @20kHz
- Total harmonic distortion: 0.05% @ 20Hz, 0.005% @ 1kHz
- Phase distortion: < 4º at 20Hz, 0.3º at 1kHz
- CMR: 100dB @ 60Hz
- Maximum input level: +22dBu
- Size: 3.5" wide, 2" high, 5.5" deep
- Weight: 1kg / 2.2lbs
- Construction: Welded 14-gauge steel
- Finish: Baked enamel finish
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