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Planar

Planar PL-1

$2,499

Precision in a Smaller Form
Planar PL-1 brings true REL performance to smaller and medium-sized rooms where traditional subwoofers often feel intrusive or impractical. Designed to work in close relationship with the wall behind it, PL-1 uses boundary effect coupling to deliver deep, articulate bass from an ultra-thin form that integrates naturally into the living space.

US orders ship the week of June 8th, 2026
UK orders ship the week of June 29th, 2026

300-Watt Pure Class D Amplifier
Dual 6.5” Long-Throw Drivers
10” Boundary-Coupled Passive Radiator
Ultra-Thin Cabinet for Near- or On-Wall Placement
Built-In Airship Direct Wireless
Optional Cart for Flexible Placement

Color:Black/Cloth Grille (included)

Black/Cloth Grille (included)
Black/Premium Wood Grille
White
White/Premium Wood Grille

Setup:One Subwoofer

Single Subwoofer
Stereo Pair

Add-On Accessory:None

None
Planar Cart

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Planar PL-1

Single Subwoofer
Black/Cloth Grille (included)
None

$2,499

Deep Bass, Minimal Space

Whether mounted directly on-wall or placed close to the wall using the optional cart, PL-1 adapts easily to a wide range of spaces and systems. In many ways, it has become the Swiss Army Knife of REL subwoofers. Equally effective in music systems, compact theaters, unconventional placements, and even specialized applications such as center-channel bass reinforcement where traditional subwoofers often prove difficult to integrate.

Flexible performance in an ultra-thin form. Traditional subwoofers often demand significant floor space and careful placement to perform at their best. Planar PL-1 takes a different approach. Designed to work in close relationship with the wall behind it, Planar uses boundary effect coupling to produce deep, articulate bass from an ultra-thin form that integrates naturally into smaller and medium-sized rooms.Whether mounted directly on-wall or placed close to the wall using the optional cart, PL-1 adapts easily to a wide range of spaces and systems. In many ways, it has become the Swiss Army Knife of REL subwoofers. Equally effective in music systems, compa...
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Design

Designed to Fit Naturally

PL-1 was designed for rooms where space matters as much as performance. Its ultra-thin cabinet, flowing edges, and deep lacquer finishes allow it to integrate naturally into smaller and medium-sized living spaces where traditional subwoofers can feel oversized or intrusive.

Available in black or white lacquer finishes, PL-1 transforms underused areas into opportunities for serious low-frequency performance while preserving the openness and flow of the room itself. Thoughtful details, including recessed controls, concealed cable management, and optional premium wood grille upgrades, reinforce a design philosophy where elegance and functionality exist together naturally.

To help manage the interaction between the cabinet and the wall, Planar 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 while preserving the speed and integrity of the bass. The result is cleaner, more controlled low-frequency performance.

Driver

Dual Drivers. Dynamic Performance

PL-1 uses twin long-throw 6.5" drivers specially developed from proven REL driver platforms to deliver fast, dynamic bass from an ultra-thin cabinet. Working together, the dual-driver configuration increases surface area and impact while preserving the speed, articulation, and control that define REL performance. The result is deep, engaging bass that brings music and theater systems to life without overwhelming smaller and medium-sized rooms.

Boundary-Coupled Bass

A specially tuned 10" passive radiator fires toward the wall behind Planar, using boundary effect coupling to reinforce and expand low-frequency output. With over 45mm of excursion, the passive radiator works in close relationship with the wall surface to produce surprisingly deep bass and remarkable scale from a cabinet only inches deep.

The result is immersive, room-filling performance from a form designed to integrate gracefully into real living spaces.

Amplifier

Compact Form. Serious Power

PL-1 is powered by a 300-watt Pure Class D amplifier engineered to deliver fast dynamics and exceptional control from an ultra-thin platform. Proven across thousands of REL subwoofers, this latest generation design combines high current delivery with long-term reliability, allowing PL-1 to produce deep, articulate bass with remarkable composure.

Conservatively rated at 300 watts, the amplifier delivers substantially greater real-world output under demanding conditions. The result is effortless performance for both music and theater systems while remaining efficient, cool-running, and dependable over years of use.

Filtered to Perfection

REL’s fully analog input filters play a critical role in Planar PL-1’s natural and cohesive sound. By avoiding unnecessary digital processing, PL-1 preserves timing, tonal balance, and the sense of musical flow that allows bass to integrate seamlessly into the system.

REL’s renowned High Level Connection allows Planar to receive the same signal fed to your main speakers, creating a unified presentation that feels connected and effortless. Combined with our all-analog PerfectFilter circuitry, PL-1 delivers deep, controlled bass with exceptional speed and clarity.

Wireless

Wireless Freedom Included

Unlike traditional subwoofers that require long visible cable runs, Planar PL-1 includes Airship Direct wireless technology as a fully integrated part of the design. By eliminating the need for signal cables, PL-1 preserves the openness and simplicity of modern living spaces while maintaining the speed, dynamics, and musicality expected from a REL.

The compact receiver integrates directly into a concealed rear-panel compartment and arrives pre-paired from the factory for effortless setup. No apps. No software updates. No complicated configuration. Simply connect power, position Planar, and experience true REL performance with the freedom of uncompromised wireless operation.

Specifications

Technical Specifications

Type

(2) Front-firing active woofers, (1) Rear-firing passive radiator

Active Driver Size & Material

(2) 6.5in. (165mm) FibreAlloy cone, long-throw, steel chassis

Passive Radiator Size & Material

10in. (250mm) FibreAlloy cone, steel chassis

Low Frequency Extension

-6 dB at 31 Hz, in room

Input Connectors

HIGH-LEVEL Neutrik SpeakOn, LOW-LEVEL RCA, LFE RCA

Output Connectors

Power Output

300 watts (RMS)

Amplifier Type

Pure Class D

Wireless Capability

Built-in Wireless

Dual Parametric Filter

N/A

Finish

Gloss Piano Black or Gloss White Lacquer

Protection System

Fully Electronic Set Safe

Yes

D.C. Fault

Yes

Output Short

Yes

Mains Input Voltage

100-240 volts selectable

Fuses

2.5A for 230V operation, 5A for 120V operation

Supplied Accessories

Mains Lead

Yes, 90 degree to permit on wall mounting

Neutrik Speakon

Yes. 1.5m cable intended for use with AirShip Direct™ transmitter

Interconnect

Supplied Accessories: Power adapter, HIGH-LEVEL cable, X2 RCA cable

User Manual

Yes

In the interest of product development, REL Acoustics Limited reserve the right to vary these specifications without notice.

Dimensions

DIMS

W x H x D
20.6 x 19.4 x 5.7in.
(522 x 492 x 144mm) Add 1.5in.
(39mm) depth for on wall bracket

Net Weight

41.6lbs. (18.9 kg)

Faq

How does PL-1 improve my audio system?

PL-1 extends the lowest frequencies with greater depth, scale, and emotional connection while preserving the speed, timing, and musicality of your main speakers. Rather than simply adding bass, PL-1 helps complete the system restoring weight, realism, and immersion across both music and film. The result feels more natural, more dimensional, and more physically connected to the experience.

Does PL-1 need to be mounted on a wall?

No. PL-1 is designed for flexible placement and can be wall-mounted or positioned within the room on its custom Planar Cart. This versatility allows Planar to adapt naturally to different living environments, room layouts, and installation preferences while maintaining the performance REL is known for.

What is REL’s VIMAR system?

VIMAR (Vibration Isolation Material and Resonance Control) is a REL-developed system integrated into Planar’s mounting brackets to help manage the interaction between the cabinet and the wall surface. By helping reduce the transfer of unwanted energy into the wall, VIMAR preserves the speed, balance, and control of the bass while improving overall low-frequency performance.

What makes Planar different from traditional subwoofers?

Traditional subwoofers are often designed around placement limitations forcing systems and rooms to adapt around them. Planar approaches bass differently. By combining ultra-thin architectural form with wall-integrated acoustic performance, Planar is designed to work naturally within modern living spaces while still delivering the scale, depth, and emotional connection expected from REL.

Is PL-1 designed for music or home theater?

PL-1 works seamlessly across both two-channel music and home theater systems. In stereo systems, it restores the foundation and scale that make music feel complete. In home theater environments, it adds depth, dimensionality, and immersive low-frequency energy without overwhelming the system.

Is PL-1 well suited for center-channel bass reinforcement?

Yes. PL-1’s compact form, flexible placement options, and adaptable performance make it especially well suited for center-channel bass reinforcement within REL 3D and immersive theater systems. Its ultra-thin design allows it to integrate naturally near large displays and media furniture while extending low-frequency performance across the front soundstage without overwhelming the room.

Is the Planar PL-1 subwoofer compatible with wireless systems?

Yes. PL-1 includes integrated wireless technology for cleaner installation and more flexible placement options. The built-in Airship Direct wireless system simplifies setup while preserving the clean architectural appearance of the room.

What room size is Planar PL-1 ideal for?

PL-1 is ideal for smaller to medium-sized rooms, apartments, media rooms, and design-led living environments where flexibility and aesthetics matter alongside performance. Its ultra-thin form allows it to integrate naturally into spaces where traditional subwoofers may feel visually intrusive or difficult to place.

Can Planar PL-1 be integrated with other REL subwoofer series?

Yes. PL-1 can be integrated with other REL models. This comes in handy when building a REL 3D set up where you can mix and match different models and pair them with different sets of speakers in your theater set ups. For stereo pairs, two of the same model is required to achieve the stereo effect. Multiple PL-1 subwoofers can further improve room coverage, bass consistency, and overall immersion.

Does Planar include an anti-fall restraint system?

Yes. Planar includes an anti-fall restraint system designed to provide additional stability when the product is not mounted directly to the wall. When using Planar on the optional Cart or in free-standing applications, REL recommends installing the restraint system according to the owner’s manual to help reduce the risk of accidental tipping.