The Radial JDI is considered by many to be the world’s 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.
You expect only the best from your stage equipment, and your direct box is no different. Go with the industry standard JDI today and keep on making music for years to come.
Jensen transformer-equipped passive DI
Eliminates hum and buzz from ground loops
Virtually zero phase and harmonic distortion
Exceptional signal handling and noise rejection
Pad for active instruments and high-output keyboards
Merge switch allows for summing stereo signals into mono
Audio Circuit Type: Passive, transformer based
# of Channels: Single channel (mono)
Frequency Response: 20 Hz to 20 kHz (±0.2 dB)
Dynamic Range: 135 dB
Total Harmonic Distortion: 0.05% from 20 Hz to 20 kHz @ -10 dB
Phase Deviation: 0.3° @ 100 Hz; 3° @ 20 Hz
Input Impedance: 140 kΩ, unbalanced
Output Impedance: 150 Ω, balanced
Max. Input Level: +21 dB @ 20 Hz to 20 kHz
Features: Input pad, mono sum, 180° polarity reverse, ground lift, speaker filter
Construction: 14-gauge steel chassis and outer shell
Finish: Durable powder coat
Conditions: For use in dry locations only, 5-40°
Dimensions (H x W x D): 1.8" x 3.3" x 5"
Weight: 1.55 lbs (703 g)