If you need reference quality sound in compact spaces such as a broadcast van or a small studio, the M52D 3" Active Control Monitor from Klein + Hummel is the obvious choice. This compact uses a 3" (75mm) high-performance neodymium broadband driver for precise, flat sound yet only takes up 1.8³ of space. The magnetically shielded enclosure can work safely in close proximity to displays with interior bracing eliminating coloration from resonance.
The M52D expands upon the M52 design with digital connectivity options such as digital 96KHz XLR and BNC connections that are compliant with the AES3 (AES/EBU), AES3id and S/P-DIF Formats. This compact monitor is versatile and flexible with a four-pole XLR input for use with external power supplies such as car batteries and is so light it can be mounted on a standard microphone stand with 3/8" threaded stud. Controlling your M52D's volume is simple with a front mounted volume knob, which can be easily removed for prevention of unauthorized operation.