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 · Durham, NC
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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.