REL Acoustics Planar PL-2 Subwoofer

Maximum Performance. Minimal Space.

The REL PL-2 is the definitive solution for spaces where traditional, bulky subwoofers simply cannot fit. By utilizing boundary effect coupling, Planar transforms the wall behind it into an active part of the acoustic system. The result? Deep, room-filling bass and astonishing scale from an ultra-thin form factor that reclaims your floor space.

REL Performance in an Ultra-Thin Form

Traditional subwoofers demand significant floor space to produce true depth. The PL-2 takes a revolutionary approach. Engineered to mount directly on-wall or rest flush against it via the optional Cart, the PL-2 delivers immersive, hard-hitting low frequencies that seamlessly integrate into modern, open-concept living spaces. It projects bass with a level of authority and scale that completely defies its slim proportions.

Designed for Modern Architecture

The Planar PL-2 combines elegant industrial design with purposeful audio engineering. Featuring a slim profile, flowing edges, and deep lacquer finishes (available in high-gloss black or white), it complements luxury interiors rather than intruding upon them.

Every detail has been meticulously considered:

• Concealed Aesthetics: Recessed controls and hidden cable management keep lines clean.
• Bespoke Upgrades: Optional hardwood grilles elevate its architectural presence.
• VIMAR Technology: To manage cabinet-to-wall interaction, REL’s Vibration Isolation Material and Resonance Control (VIMAR) system is built directly into the mounting brackets. This drastically reduces energy transfer into the wall while preserving bass speed and clarity.

Flat Piston. Massive Scale.

Creating deep bass from a cabinet barely 80mm deep required an entirely new approach to driver architecture. The PL-2’s exclusive 8” Flat Piston driver delivers incredible excursion and rigidity, reaching down to 27Hz—well over an octave below the fundamental range of most acoustic instruments.

Aiding this is a 10" long-stroke passive radiator, featuring a lightweight paper cone reinforced with a rigid aluminum center cap. By firing directly toward the wall, it expands the low-frequency output, making the bass feel effortless, expansive, and far larger than the physical cabinet suggests.

Pure Analog Power - Effortless Control

At the heart of the PL-2 is a heavily optimized 550-watt Pure Class D amplifier. Proven across thousands of REL subwoofers, this high-current powerhouse easily delivers a clean 600 watts on the test bench under demanding conditions, ensuring cinema-grade impact and musical composure.

Filtered to Perfection

By avoiding unnecessary digital processing (DSP), REL’s fully analog input filters preserve the speed, timing, and organic character of your source audio.

• High-Level Connection: Connects directly to your main amplifier's speaker terminals so the PL-2 receives the exact same signal as your main speakers, ensuring perfect sonic integration.
• PerfectFilter™ Circuitry: Balances speed and extension for breathtaking clarity.
• Simultaneous Dual-Input: Dedicated High-Level and .1/LFE inputs operate at the same time, allowing you to transition seamlessly from high-fidelity music to explosive home theater dynamics.

Zero Wires. Zero Compromises.

Airship Direct Wireless Included: Unlike traditional subwoofers that require long, unsightly cable runs, the Planar PL-2 features Airship Direct wireless technology fully integrated out of the box.

The compact wireless receiver slides discreetly into a concealed rear-panel compartment and arrives pre-paired from the factory.

We endeavour to despatch same day for orders placed up to 1pm on available stock items (items with stock message "Usually dispatched within 24 hours"). Please remember to check with us first for a physical stock check if next day delivery is important to you. Any items with stock message "Usually dispatched within 72 hours" are items that we do not hold in stock but order in from the importer or manufacturer as soon as a customer order is received. Occasionally these may be delayed beyond 72 hours due to importer/manufacturer stock levels but we will inform you as soon as we can if this is the case.

UK Orders

We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Non Mainland locations - Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland may take a day or so longer and are not Free of Charge. Smaller items are delivered using Royal Mail 24 or special delivery. Larger items are delivered using a courier service such as DPD or UPS.

International Orders:

Due to the nature of our products and brand restrictions we are only able to send certain items internationally. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Hifisound or by the courier with a request for any further information required. Customs duties can apply for shipments to any countries outside of the UK depending on where the product you have bought is made. Customers are responsible for all taxes and duties incurred when the items enter their country.

Collect in Store or Home Install

At the request of the manufacturer some items cannot be supplied by mail order but you can click and buy them and then elect to collect them from our store or arrange a home install (if applicable). Applicable items clearly state that they are Collect in store or home install. Once ordered you will receive a message prompting you to contact us by phone or email to arrange for us to deliver and install or to reserve and collect from our store at your convenience, you will also be advised of the delivery time / stock availability as not all Home install / collect in store items are held in stock.