The Radial JD6 is a 6-channel rackmount direct box designed for keyboards in studio and live touring where optimal signal transfer is required without noise.
The Radial JD6 is a high performance 6-channel rackmount direct box designed for the most demanding studio and live touring applications. Stemming from the industry standard Radial JDI, the JD6 incorporates six high performance audio transformers with extra RF filtering to ensure optimal signal transfer without noise, distortion or artefact of any kind. These are able to withstand extreme signal levels without choking. This makes the JD6 particularly effective when managing high output active devices such as digital pianos that will often overload most direct boxes or preamps.
The passive design further advantages signal transfer by providing galvanic isolation from the input to the output, thus eliminating the hum and buzz that is often encountered due to ground loops and DC current offsets. This makes the JD6 particularly effective for use with keyboards, drum machines, electronic drums and audio sources such as CD players or computers.
Each JD6 channel is equipped with a rear-mounted ¼" instrument input and thru-put for the artist's amp plus a lo-Z balanced XLR output to feed the mixing desk. The front panel presents an ergonomically efficient array of switches and connectors including ground lift, 180º polarity reverse, stereo-to-mono merge plus a low-pass filter to reduce unwanted high frequency noise that is common with older vintage keyboards. Channels 1 and 2 are supplemented with front panel 'priority' connectors that switch the input as soon as a cable is inserted for improved efficiency in the studio.
These features combine to present a true 'Swiss army knife' of options making the Radial JD6 the finest rack DI made today.
Passive direct box for concert touring and studio
Ultra linear nickel-laminated transformers
Handles extreme signal levels without distortion
Front and rear panel connectivity for added routing options
Audio circuit type : Passive, transformer based
Number of channels : Six channels
Frequency response : 20Hz ~ 20KHz (± 0.2dB)
Dynamic range : 135dB
Maximum input : +21dB @ 20Hz
Total harmonic distortion : 0.05% from 20Hz ~ 20kHz @-10dB
Phase deviation : 0.3° @ 100Hz; 3° @ 20Hz
Input impedance : 140k Ohms, unbalanced
Output impedance : 150 Ohms, balanced
Transformer : Eclipse ET-DB1, 12:1 ratio
Shield : MuMETAL® can with internal Faraday shield
Input pad : -15dB
Merge : Sums left & right sources to mono (ch. 1 & 2 only)
180° polarity reverse : Inverts absolute phase
Ground lift : Disconnects pin-1 at XLR output
XLR configuration : AES standard (pin-2 hot)
Connectors (ch. 1 & 2) : RCA L/R in, 1/4" in & thru, XLR-M out
Connectors (ch. 3 ~ 6) : 1/4" in & thru, XLR-M out
Construction : 14 gauge steel chassis & outer shell
Finish : Durable powder coat
Size : (W x H x D) 483 x 44.5 x 159mm ("19" x 1.75" x 6.25")
Weight : Looking for this spec
Shipping size: W x H x D : 260 x 114 x 568mm (10.25" x 4.50" x 22.37")
Shipping weight : 3.7 kg (8.15 lbs)
Power : Passive, no power required
Conditions : For use in dry locations only between 5°C and 40°C