The Mastiff-KM312P is a large-format passive stage monitor designed to deliver extreme output, extended frequency response, and uncompromising reliability for the most demanding professional live sound environments. As the most powerful monitor in the Mastiff series, it is built for high-energy stages where impact, clarity, and headroom are essential.
Built around a three-way configuration with three 12” drivers, including two 12” neodymium woofers and a coaxial 12” woofer with a 2.4” compression driver, the Mastiff-KM312P delivers a 60 Hz – 19 kHz (-6 dB) frequency response and reaches an impressive 138 dB peak SPL. This wide bandwidth allows the monitor to cover the entire audible spectrum without the need for an external subwoofer, even in high-output monitoring applications such as drum fills.
The monitor features a selectable dispersion pattern (30° × 100° or 100° × 30°), enabling precise control of sound coverage depending on stage layout and performer positioning. This adaptability makes the KM312P suitable for both single-monitor use and complex, high-level monitoring setups.
The enclosure combines wood construction with a stainless steel grille, ensuring excellent acoustic performance while withstanding the physical demands of touring and live events. Measuring 820 × 351 × 530 mm and weighing 37.5 kg, the Mastiff-KM312P is a solid, road-ready solution engineered for long-term professional use.
Available finishes:
• Black • Custom RAL
Ideal for: Touring productions, large concerts, music festivals, drum monitoring, high-output stage monitoring, and professional live sound applications.
