Radial EngineeringJS3 Passive Mic Splitter Direct Box


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Radial JS3

Features electrically isolated XLR I/O, a direct throughput with ground lift, and 2 transformer-isolated outputs. Has a 30dB pad, delivers 48V DC phantom power for microphones, has a ground lift, and has common mode noise rejection up to -100dB at 60Hz. Features a standalone housing with 14-gauge, I-beam steel frame with baked enamel finish and an innovative bookend cover. It also uses a Jensen JT-MBD mic bridging transformer. The JT-MBD features a 1:1:1 with dual secondary windings to allow dual isolated outputs. This allows the JS-3 to be equipped with a main direct-out for FOH and 2 isolated outs for monitor mix and broadcast feed.

JS3 Features

  • Passive splitter direct box
  • Electrically isolated XLR I/O
  • Direct throughput with ground lift
  • 2x transformer-isolated outputs
  • 30dB pad
  • 48V DC phantom power
  • Ground lift
  • Common mode noise rejection up to -100dB at 60Hz
  • 14-gauge, I-Beam steel frame
  • Baked enamel finish
  • Input impedance: 578Ohms (1kHz, -20dBu)
  • Insertion loss: 1.2dB
  • Voltage gain: -1.2dB (1kHz, -20dBu)
  • Deviation from linear phase: +2.8/-0° (20Hz to 20kHz, -20dBu)
  • Frequency Response: 10Hz to 80kHz
  • Distortion (THD): 0.001% (1kHz, -20dBu) 0.05% (20Hz, -20dBu)
  • Maximum input level: +2.0dBu (20Hz, 1%THD)
  • Common-mode rejection ratio (CMRR): 130dB (60Hz) 96dB (3kHz)
  • Output Impedance: 254 Ohms
  • Size (H x W x D): 2” x 3.25” x 5”
  • Weight: 1.95lbs / .9kg
  • Construction: 14-gauge steel chassis & shell, baked enamel finish
  • Warranty: 3 years on device, 20yrs on Jensen transformers
Radial Engineering JS3 Passive Mic Splitter Direct Box Reviews