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Radial Engineering JDI Passive
Direct Box Description
The Radial JDI is
considered by many to be the worlds finest direct box. It is a passive DI that
employs a Jensen isolation transformer for optimum audio performance offering
outstanding linearity at all frequencies, combined with extraordinary level
handling without introducing distortion. Being completely passive, the plug
& play JDI does not require any powering and has the unique advantage of
eliminating 60-cycle ground loops. This makes the JDI a definite favorite with
informed audio engineers. The JDI is great for guitars, bass, and keyboards and
is particularly adept with high-output, broadband instruments such as active
instruments and digital keyboards. The JDI may be rack-mounted using the J-Rak
and is also available in a stereo (2-channel) version called the JDI Duplex and
the 6-channel rack-mountable JD6.
Radial Engineering JDI Passive
Direct Box Features
- Jensen Transformer
equipped passive DI
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100% isolation eliminates ground loops
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Virtually zero phase & harmonic distortion
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Exceptional signal handling
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High common mode noise rejection
Radial Engineering JDI Passive
Direct Box Options
Radial JDI Duplex
A two channel version of the JDI for stereo keyboards, or bass rigs. All the
same features as the JDI in a single box. Extremely rugged construction, virtually
zero phase distortion, the Duplex is the perfect choice for live stages where
eliminating noise is essential
Radial JD6
Six channel DI
The Radial JD6 is a 6 channel direct box that has been optimized for stage use
- Six of the legendary Radial JDI channels are mounted into a single rack space
for maximum density. Channels 1 and 2 offer a Swiss Army extended feature set
for computer sound cards, keyboards, and studio interface while channels 3 to 6
are optimized for stage.
Radial J-Rack Direct Box rack-mount adaptor
The J-Rack is a unique direct box shelf and 19 rack adaptor that allows up to
8 JDI or J48 direct boxes to be rack-mounted in 2 rack spaces. This unique
adaptor allows improved inventory management for sound companies allowing DI inventory
to be used as stand-alone or rack mount depending on tour needs.
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Radial JDI Review /
See All ZenPro Audio Reviews Here: Review Page
The Radial JDI has been my favorite
passive DI to plug into a mic preamp for years now. One main reason is that it
functions flawlessly and has every feature I want on a DI, but the real reason
is the sound. The onboard Jensen transformer simply provides a highly musical
yet clean sound that sounds great with passive and active output devices. The
JDI features a split throughput to feed the amp while taking the direct
balanced transformer out signal from the XLR jack, ground lift (can be a life
saver!), -15dB pad, and a merge switch that sums a stereo feed to mono. It’s
built like a tank, seriously you could run over it with a car I’m sure with
absolutely no damage.
The sound is clean with a subtle
sheen to it that is classic Jensen. Detailed, super high headroom and no
noticeable distortion mean you get out of it what you feed it. I’ve never had a
situation where the JDI degraded a signal, if anything it delivers a clear but
slightly enhanced version of reality. Bass is deep, synths have all the bite
you want, and it’s a great DI to use when recording a DI track for reamplifying
later! Plugging the JDI into a variety of preamps means you can achieve “color”
elsewhere, another nice reason to own one.
Conclusion: A go to DI for me, super
rugged and never fails. I think it’s one of those “everybody should have one”
devices.
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