Sound Pure's Take

Condition: Used, Excellent

From Radial Engineering

Phantom Powered Active Direct Box

The J48 is a high performance active direct box for live concert touring and professional recording studio applications, with the ability to handle extreme transients without distortion while delivering the natural sound of your instrument.

Higher Rail Voltage, Higher Headroom

Most battery-powered guitars and basses will produce as much as 7 Volts when played at maximum volume, which can easily overload typical active direct boxes which have are only able to handle about 3 Volts. The J48 uses a unique switching power supply that raises the internal rail voltage so it can handle up to an incredible 9 Volts, resulting in improved signal handling and greater headroom. This additional headroom significantly reduces distortion of all types, allowing the natural tone and character of the instrument to shine through.

J48™ MK2 Specifications

Type
Active 48V with switching supply
Input impedance
Unbalanced 220K-Ohms
Output impedance
Balanced 600-Ohms
Frequency response
20Hz ~ 20kHz

Noise Floor -99dB

Total harmonic distortion
0.002% @ -5dBu
Phase distortion
1º @ 100Hz; 11º @ 20Hz
Maximum input
+10dBu
Size
3.3" x 5.0" x 2" (84 x 127 x 48mm)
Weight
1.55 lb (720 g)
Construction
Welded 14-gauge steel
Finish
Baked enamel coat

Warranty

This item is sold without the Sound Pure 3-year warranty (used / B-stock / dealer-exempt). Coverage terms for items in this category live in Terms & Conditions, Section 27.

Returns

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Sound Pure Studios Control Room A — Durham, NC

Sound Pure Studios · Durham, NC

Come hear it in our control rooms.

Sound Pure is a working studio in Durham, NC — a 1,000 sq ft live room and two pro control rooms. Book a session to audition gear in a world-class acoustic space before you buy.