The compact and light VMMDA-1 2-Channel HD/SD-SDI, AES, and Digital / Analog Audio Monitor from Wohler Technologies is a compact and lightweight unit offering full-range fidelity. Two front-firing midrange tweeter speakers and a compact high-performance woofer are arranged in its bi-amp design. The speaker systems are protected against blowout by limiters. The summed bass feature allows for audible detection of out-of-phase conditions.
Electronic rather than acoustic cancellation of bass frequencies provides positive audible detection of out-of-phase (reversed polarity) audio feeds. The unit features two 10-segment VU LED bar graph level meters. Fast and averaging phase LEDs give visual alert of out-of-phase conditions. A 3-way toggle switch selects between the analog or digital inputs.