REL Acoustics has introduced the Planar series, a new category of subwoofers built for modern listening environments. The Planar PL-1 and Planar PL-2 deliver deep, controlled bass from an ultra-slim profile that prioritizes flexibility without compromising performance.

Slim Design Meets Serious Output
At just 5.7 inches deep, both models mount easily on the wall using the included bracket, or stand freestanding on the floor. This thin form factor solves common placement issues in living rooms, media spaces, or minimalist setups where traditional box subs dominate floor space. Wall mounting leverages boundary reinforcement for tighter, more efficient bass response.
- Planar PL-2: Features a single 8-inch FlatPiston active long-throw driver paired with a 10-inch FibreAlloy passive radiator on the rear. It reaches down to 24 Hz (-6 dB in-room), providing authoritative low-end extension suitable for larger systems or demanding home theater tracks.
- Planar PL-1: Uses dual 6.5-inch FibreAlloy active drivers with the same 10-inch passive radiator. It extends to 31 Hz (-6 dB in-room), offering strong performance in compact two-channel or smaller surround setups.
Both models stay under 50 pounds, making installation straightforward while maintaining REL's focus on speed, control, and musical accuracy.

Wireless Integration and Versatility
Each Planar sub includes a built-in AirShip wireless module for clean, cable-free connection. This allows optimal positioning for bass performance without routing long runs or sacrificing aesthetics. The design supports both music and movie applications, delivering fast transient response and seamless blend with main speakers.

Analytical Perspective
The Planar series addresses a core challenge in subwoofer deployment: finding the right spot without visual intrusion. By shifting to a planar form and combining active drivers with passive radiators, REL achieves meaningful output from minimal depth. Wall placement enhances efficiency through boundary gain, while the driver configurations balance extension, speed, and output for different room scales. Early feedback highlights strong integration and room-filling presence that defies the slim cabinets.
At All Elite Audio, we see the Planar PL-1 and PL-2 as practical solutions for clients seeking high-performance bass in space-conscious environments. They expand options for REL systems without forcing trade-offs in placement or fidelity.
If you're evaluating subwoofers for a current setup, the Planar models offer a fresh approach worth auditioning. Contact us to discuss how they fit your system.