Outline SUB215 Ground-Stackable Subwoofer 2 x 15″

Engineered for venues that demand uncompromising low-frequency impact, the Outline SUB215 pairs dual 15″ transducers with the brand’s acclaimed Energy Retentive Porting to deliver smooth, visceral bass extension to 34 Hz. Whether installed in a dance club, concert hall or modern house of worship, this ground-stackable powerhouse supplies the headroom, durability and versatility audio professionals require.
Earth-Shaking Performance

With 4800 W AES peak power handling and a maximum output of 144 dB SPL, the SUB215 easily fills large spaces while maintaining musical accuracy. Its quasi-omnidirectional dispersion allows seamless integration with Outline line-array or point-source loudspeakers, ensuring coherent coverage across the audience area.
Built for Permanent Installations

The enclosure is crafted from premium Baltic birch plywood and sealed in a hard-wearing black polyurea coating that resists scratches, moisture and UV exposure. Sixteen M8 threaded points, an M20 pole mount and an optional trolley board simplify rigging, ground-stacking and transport, making the SUB215 equally at home in fixed or mobile applications.
Smart Connectivity & Easy Integration

Dual Neutrik NL4 connectors offer flexible wiring options, while the 2 × 8 Ω impedance configuration optimises amplifier utilisation. A recommended 150 Hz crossover point ensures tight coupling with mid-high systems for a powerful, full-range experience.

Dual 15″ woofers with ERP technology reach 34 Hz

4800 W peak / 144 dB SPL output

Rugged polyurea-coated Baltic birch enclosure

Comprehensive rigging & pole-mount options

Designed to complement all Outline loudspeaker systems