BOLANLE DII Professional Multi Functional 2 Channel Stereo Audio Passive DI BOX

A popular, highly regarded passive dual-channel stereo direct injection (DI) box and line isolator heavily utilized by musicians and live audio engineers. Serving as an affordable clone of high-end utility boxes like the Walrus Audio Canvas Stereo or Radial Engineering models. It is designed to balance signals from high-impedance instruments (guitars, basses) or low-impedance stereo gear (pedalboards, keyboards, amp modelers) to run cleanly to front-of-house (FOH) PA mixers.
\nKey Features & Core Capabilities
\nDI & Line Isolator Switching: A dedicated button per channel allows users to shift between traditional Direct Box mode (high-impedance instruments) and Line Isolator mode (low-impedance, line-level gear like DJ controllers or multi-FX modelers). 
\nGalvanic Isolation & Noise Elimination: Built around high-grade transformers (often advertising custom-wound or Jensen-style components), it completely isolates the ground path to instantly stop 60Hz ground-loop hum and buzzing on busy stages. 
\nInput Gain Attenuation (-15dB Pad): Independent attenuation pads handle exceptionally \"hot\" signals coming from active basses, synths, or line-level electronics to prevent distortion or clipping at the board. 
\n180° Phase Inversion: Includes physical switches to invert the phase of both signal paths, making it highly capable of correcting phase issues in complex live audio environments or abnormal room layouts. 
\nMono Summing & Thru Routing: Features internal summing choices to merge stereo inputs down into a mono signal. This is highly convenient when board channels are limited or when routing a stereo pedalboard straight to a mono FRFR stage monitor while outputting to FOH. 
\nTour-Ready Construction: Features a rigid steel I-beam shell that protects internal solder points and circuitry from structural stress, paired with a full-bottom foam pad to keep the unit firmly anchored to amplifiers or pedalboards