Radial Engineering J48 1-channel Active DI for Passive Guitars & Basses (J-48 / J 48)

Over the past quarter centurysound systems have evolved as have the instruments that are now used. The listener has also evolved. CD quality sound is no longer a luxurybut expected. Only now are we beginning to hear and appreciate the advantages of a good direct box. A good DI must provide a wide distortion-free frequency response and the dynamic range to handle today powerful instruments.

FEATURES

• Welded I-beam construction makes it impossible to torque the PC board. This virtually eliminates cold solder joints - the No.1 cause of system failure in the field.
• An innovative lide-in-placeXLR trace makes it possible to use I-Beam girder construction.
• A digital switching power supply steps-up the internal rail voltage to 9-Volts. The J48 will not choke like other DI when hit with large transients.
• A military-grade PC board is employed for maximum wear and tear in abusive environments. Welded steel standoffs ensure the PC board will not shift.
• A -15dB pad allows super hot inputs such as that from a CD player to be connected and balanced for long runs.
• Momentary 48V Check LED will flash once when the 80Hz filter is depressed to tell you phantom power is present.
• The Merge function turns the input & thru into eft & rightinputs to mono mix at the XLR output. This handy function saves valuable inputs on the mixer!
• The input is connected to the instrument.
• The thru-put is connected to the instrument amplifier. The J48 has a high input impedance to reduce loading.
• Our book-end design creates a protective zone around the switches & connectors for best protection!
• A heavy-duty baked enamel finish for excellent durability and great looks for years! 100% 14-gauge steel construction.
• The 600 Ohm balanced XLR out is mic level to properly match concert splitters - will drive 1000 feet without appreciable noise.
• A polarity reverse switch flips the polarity from the AES standard Pin-2 to Pin-3 on the XLR and is used when combining sounds that may be out of phase.
• An 80Hz low-cut (highpass) filter gently reduces excessive bass for more headroom and clarity. Eliminates run-away resonant feedback from acoustics!
• The ground-lift disconnects the ground path to the transformer at the XLR output. This is used when a ground path is made at the input side such as with a keyboard.
• A no-slip full bottom pad reduces mechanical vibrationimproves electrical isolation and keeps the J48 from moving around on busy stages!

SPECIFICATIONS