REL - Planar PL-2 - Ultra-Thin Subwoofer

REL's flagship wall-mounting subwoofer, the Planar PL-2, for larger rooms and open living spaces. 8" FlatPiston driver, 10" boundary-coupled passive radiator with FibreAlloy cone, 550W RMS Pure Class D amplifier, built-in Airship Direct wireless, VIMAR vibration isolation and ultra-thin on-wall cabinet. Bass extension to -6dB at 24Hz. Available in Black and White with optional premium wood grille and cart.

Maximum Performance. Minimal Space.

The REL Planar PL-2 is REL's definitive solution for spaces where traditional subwoofers simply do not fit. Designed to work in close relationship with the wall behind it, the PL-2 uses boundary effect coupling to make the wall itself part of the acoustic system — projecting bass into the room with a scale, depth and authority that feels far larger than the product itself.

Whether mounted directly on-wall or placed close to the wall using the optional cart, the PL-2 delivers powerful, immersive performance for modern rooms and open living spaces where traditional subwoofers struggle to integrate gracefully. This is REL performance without floor space compromise.

8" FlatPiston Driver — Purpose-Built for Planar

At the heart of the PL-2's driver system is REL's 8" FlatPiston driver — a purpose-engineered active driver designed specifically for the Planar platform and its unique boundary-coupled architecture. The FlatPiston design delivers the fast, detailed bass transients that define REL's musical character, with the rigidity and low-colouration performance needed to match the demands of the PL-2's powerful amplifier stage.

Boundary-Coupled Bass — 10" FibreAlloy Passive Radiator

A specially tuned 10" passive radiator — built with a FibreAlloy cone on a steel chassis — fires toward the wall behind the PL-2, using boundary effect coupling to reinforce and dramatically expand low-frequency output. The wall becomes an active participant in the acoustic system, multiplying the effective output and extending bass to -6dB at 24Hz in-room — a remarkable achievement for a cabinet only 144mm deep.

The result is deep, room-filling bass with genuine scale and authority — performance that competes with far larger, floor-standing subwoofer designs.

550W RMS Pure Class D Amplifier

A 550W RMS Pure Class D amplifier powers the PL-2 with the headroom and authority to fully exploit the boundary-coupled driver system in larger rooms and open living spaces. Class D efficiency ensures minimal heat generation within the ultra-compact chassis, while the high power reserves deliver dynamic headroom that keeps bass controlled and articulate even during demanding musical and cinematic passages.

Built-In Airship Direct Wireless

Airship Direct wireless technology is built into the PL-2 as standard — the receiver unit comes pre-installed on the subwoofer. This eliminates the practical challenge of routing a cable from your amplifier or AV receiver to a wall-mounted or near-wall subwoofer, and allows the PL-2 to be positioned wherever it performs best without compromise.

VIMAR Vibration Isolation

To manage the interaction between the cabinet and the wall, the PL-2 incorporates REL's VIMAR (Vibration Isolation Material and Resonance Control) system, integrated into the mounting brackets. VIMAR reduces the transfer of unwanted energy into the wall surface while preserving the speed and integrity of the bass — delivering cleaner, more controlled low-frequency performance regardless of wall construction or mounting conditions.

Designed for Modern Living

The PL-2's slim proportions, flowing radiused edges and deep lacquer finishes allow it to occupy wall space that traditional subwoofers could never use. Available in black or white lacquer, it combines elegant industrial design with purposeful acoustic engineering — a subwoofer designed not only to sound extraordinary, but to live beautifully within the room itself.

Thoughtful details — recessed controls, concealed cable management, and optional premium hardwood grille upgrades — reinforce a design philosophy where elegance and acoustic function exist together naturally.

In the Box

Optional accessories: Planar Cart (for freestanding near-wall placement), Premium Wood Grille

Available Options