RADIAL J48 Active DI ■ Direct Box ■ Active Type ■ Stereo-to-Mono Merge Switch ■ Phase Invert Switch ■ High-Pass (80Hz) Rumble Filter ■ Phantom Power Operation ~From the manufacturer's website~ ■ Accurate, dynamic, and a sound engineer's dream come true: the J48 MK2. The J48 MK2 is designed to operate on phantom power (48V). It is designed with the fact that all active direct boxes are a type of preamp in mind. A problem that occurs with many active DIs is that when the instrument's input voltage exceeds the internal operating voltage of the DI, square wave distortion occurs. Therefore, many active DIs cannot accurately reproduce the wide dynamics of active basses and acoustic guitars. To solve this problem, the RADIAL J48 incorporates a switching power supply internally, boosting the internal operating voltage to obtain a sound that is faithful to the original sound even for large signals. As a result, it can accurately reproduce a wide frequency range from 20Hz to 40kHz without harmonic distortion, phase distortion, or internal interference distortion. ■ The RADIAL J48 features the phase invert switch, 15dB pad switch, and ground lift switch necessary for a direct box, as well as a unique stereo-to-mono merge switch and a high-pass (80Hz) rumble filter. Therefore, you can also cut unnecessary low frequencies and improve the clarity of the mid and high frequencies. ※The 48V confirmation lamp flashes when connected to phantom power and the LOW CUT button is pressed.