The Radial J48 is a great sounding active direct box that has been optimized to produce maximum headroom while working within the limited current available from standard 48V phantom power. By employing a unique switching power supply, the J48 is capable of peak transients to 9 volts without choking. The result is lower harmonic distortion, half the inter–modulation distortion and significantly improved dynamics over other DIs. Features include a –15dB pad, 180° polarity reverse, a unique merge function to mix two signals to mono, an 80Hz high–pass rumble filter, and ground lift. Like all Radial products, the J48 is built to handle the abuse on the road and features a unique welded I–beam construction for years of trouble free performance.

The Radial J48 is a great sounding active direct box that is specifically designed to work with today’s powerful active instruments. It is unique in that it provides a real–world solution to the limited headroom caused by inadequate current from 48V phantom powering. The expanded headroom has the direct advantage of increased dynamic range and the bi–product of reduced harmonic, phase and inter–modulation distortions. Plug and play easy to use, the Radial J48 is ideally suited for studio, broadcast and stage use where high quality sound is required.

• RADJ48MK2.pdf