Natural tone. For every instrument. Whether youre on stage or in the studio the Radial J48 Phantom Powered Active DI Box offers pristine signal integrity in every situation. Just plug in play and experience outstanding headroom with zero distortion. Ready for anything. The J48 is equipped with all the tools you need to get the best sound possible. Eliminate unwanted noise with the ground lift switch. Sum your stereo instruments to mono with the merge button. Or reduce input sensitivity on the fly with a 15dB pad. Its all right there at your fingertips. Perfect for any setup. Thanks to its robust compact construction the J48 can be introduced into the tightest of stage or studio spaces. Never worry about knocks and drops getting in the way of your performance. With its metal chassis youre fully protected. Get the best from your instruments More headroom. And more dynamic range. The J48 is the perfect companion for your guitars basses and high output line level instruments. Unlike typical active DI boxes the J48 won’t overload when you play at maximum volume. Thanks to its unique switching power supply the internal rail voltage can be raised to handle up to 9 volts. That means improved signal handling for virtually noise free operation. You’ll get natural tone and character every single time. Features Pristine signal integrity for your instruments on stage and in the studio Exceptional dynamic range and headroom thanks to higher rail voltage Easily sum stereo instruments to mono with the built in merge switch Excellent signal handling and low noise from discrete and IC circuitry Quickly correct phase on old gear with the polarity reverse switch Clean up your bottom end with the 80Hz high pass filter Remove unwanted humming and buzzes with the ground lift switch No batteries required – Powered by 48V phantom power Easily check that 48V phantom power is present with the LED indicator Instantly reduce input sensitivity for high output instruments with the 15dB pad Connect a wide range of equipment via 1/4” jack input and thru Flawless connection via balanced 600-ohm mic level output Compact robust and lightweight steel construction Specifications Type: Active 48V with switching supply Input Impedance: Unbalanced 220K-Ohms Output Impedance: Balanced 600-Ohms Frequency Response: 10Hz to 80kHz Linear Performance: +/- 0.12dB from 20Hz to 20kHz Total Harmonic Distortion: 0.06% @ 20Hz 0.005% @ 1kHz Phase Distortion: 0.02º at 1kHz Maximum Input Voltage: 3.12 Volts RMS ( 9V peak ) Size: 3.5” (W) x 2” (H) x 5.5” (D) Weight: 1kg Construction: Welded 14-gauge steel Finish: Baked enamel coat