Radial J48 1-Channel Active 48V Direct Box - Phantom-Powered Purity
The Radial J48 is a compact, high-performance active direct box designed for live touring and studio recording, delivering the natural tone of instruments without distortion. Powered solely by 48V phantom power—no batteries needed—it handles up to 9V input signals, offering exceptional headroom and signal integrity for guitars, basses, and keyboards. With a -15 dB pad and 80 Hz high-pass filter, the J48 eliminates feedback and mud, ensuring clean, balanced sound over long cable runs. Its rugged steel construction and merge function make it a go-to for professionals seeking reliability and transparency.
Pristine Signal Handling
The J48's unique switching power supply boosts internal rails to 9V, preventing overload from hot pickups while maintaining natural tone. The 20 Hz–20 kHz frequency response and -15 dB pad provide flexibility for acoustic instruments, while polarity reverse aids phase alignment, making it ideal for reamping and live rigs.
Key Features of the Radial J48
- Active DI powered by 48V phantom—no batteries required
- Handles up to 9V input with exceptional headroom
- -15 dB pad for high-output sources
- 80 Hz high-pass filter to reduce feedback and mud
- Merge function for summing stereo instruments
- Polarity reverse for phase correction
- Rugged steel chassis with rubber feet
- Low noise floor and transparent sound
- Ground lift to eliminate hum
Technical Specifications
- Type: Active direct box
- Input: 1/4" TS instrument
- Output: XLR balanced
- Frequency Response: 20 Hz–20 kHz
- Max Input Level: +9 V (pre-pad), -6 dBu (post-pad)
- Pad: -15 dB
- High-Pass Filter: 80 Hz
- Power: 48V phantom power
- Dimensions: 5 x 1.85 x 3.3 in (127 x 47 x 84 mm)
- Weight: 1.55 lbs (0.7 kg)
- Warranty: 3-year transferable
