K-Array Mastiff KM312P – Bi-Amped 3x12" Passive Stage Monitor

Product Overview

The K-Array Mastiff KM312P stage monitor is a bi-amped, passive 3x12" floor wedge built for professional stage monitoring in live production, touring, and fixed venue installation. As the largest passive model in the Mastiff line, this high-power coaxial stage wedge handles up to 4,000 W and delivers 138 dB peak SPL from a low-profile birch enclosure. Its selectable 100° x 30° rotatable horn lets integrators and monitor engineers match coverage to performer position, making it a flexible bi-amped passive floor monitor for demanding vocalists and drum monitoring alike.

Product Description

The Mastiff KM312P combines two 12" neodymium magnet woofers with a coaxial 12" mid-frequency driver and a 2" voice coil compression driver in a single low-profile cabinet. The bi-amped design splits power handling across a 4-ohm low-frequency section and an 8-ohm passive-crossover mid-high section, wired through dual 4-pin SpeakON connectors for clean two-way amplifier integration. With a frequency range of 62 Hz to 19 kHz (-10 dB), the monitor covers the full vocal and instrument spectrum without requiring a dedicated subwoofer, which simplifies deployment where stage space is limited.

The adjustable horn rotates between spot (30° x 100°) and flood (100° x 30°) orientations, so a single SKU serves both tightly focused drum monitoring and wide vocal coverage across a front line. A stainless steel grille and birch plywood chassis stand up to nightly touring use, while Black, White, and Custom RAL finishes allow the cabinet to blend into broadcast sets and architectural installations. With the optional K-Dante accessory, the system integrates into Dante audio networks alongside other networked AV devices. Browse the full K-Array collection at Creation Networks to pair the KM312P with matching amplification.

Key Features

• Bi-Amped 3x12" Architecture — Two dedicated 12" neodymium woofers plus a coaxial 12" mid driver with 2" compression driver deliver full-bandwidth output from one wedge.
• 4,000 W Maximum Power Handling — High power capacity (2000 W + 800 W + 280 W rated) gives monitor engineers generous headroom before compression sets in.
• 138 dB Peak SPL — Output reaches 132 dB continuous and 138 dB peak, keeping stage mixes clearly audible over loud backline and drums.
• Selectable Spot/Flood Coverage — The rotatable horn switches between 30° x 100° and 100° x 30° dispersion so coverage can be tailored to each performer position.
• Full-Range Frequency Response — A 62 Hz to 19 kHz (-10 dB) range covers the audible spectrum without a subwoofer, reducing the footprint of monitor deployments.
• Dual SpeakON Bi-Amp Wiring — Two 4-pin SpeakON connectors carry the LF (2+/2-) and passive-crossover MF-HF (1+/1-) feeds for straightforward amplifier rack integration.
• Touring-Grade Construction — A birch plywood chassis with stainless steel grille withstands repeated load-ins while keeping weight at 33.5 kg (73.85 lb).
• Dante Network Compatible — The dedicated K-Dante accessory brings the system onto a Dante network for interoperability with networked AV infrastructure.
• Custom RAL Color Matching — Black, White, and Custom RAL finishes let integrators match the monitor to broadcast sets and venue interiors.

Typical Applications

• Auditorium stage monitoring for touring acts and resident productions
• House of worship platform monitoring for worship teams and praise bands
• Broadcast studio performance monitoring where low-profile wedges must stay out of camera sightlines
• Multi-purpose room stages hosting live music, theater, and presentation events

Technical Specifications

Frequently Asked Questions

What amplification does the Mastiff KM312P require?

The KM312P is a passive, bi-amped design, so it needs a two-channel (or two channels of a multichannel) amplifier with external DSP crossover: one channel for the 4-ohm low-frequency section and one for the 8-ohm mid-high section. K-Array publishes an amp-to-speaker matching table, and Creation Networks can specify a matched K-Array amplifier for your system.

Can the KM312P integrate with a Dante audio network?

Yes. When paired with K-Array electronics fitted with the K-Dante accessory, the monitor signal chain can ride on a Dante network alongside consoles, DSPs, and other networked AV equipment.

Is the coverage pattern adjustable after installation?

Yes. The horn can be rotated between spot (30° x 100°) and flood (100° x 30°) orientations, so coverage can be re-aimed if stage layouts or performer positions change.

Does the KM312P need a subwoofer?

For stage monitoring duty, no. Its 62 Hz to 19 kHz (-10 dB) range covers vocals, guitars, keys, and most drum monitoring needs without a separate subwoofer, which is valuable on space-constrained stages.

What finish options are available for installed applications?

The cabinet ships in Black or White, and K-Array offers Custom RAL color matching so the monitor can blend into broadcast sets, worship platforms, and architectural interiors.

What warranty and support come with this product?

K-Array products carry the manufacturer's 5-year warranty policy, and Creation Networks provides pre-sale system design assistance and post-sale support for commercial AV deployments.