REL Acoustics Planar 8-Inch Powered On-Wall Subwoofer in Gloss Piano Black (Each) - PLANAR PL-2 BLACK

REL Acoustics PLANAR PL-2 BLACK Planar 8-Inch Powered On-Wall Subwoofer in Gloss Piano Black (Each)

The REL Acoustics PLANAR PL-2 BLACK powered subwoofer brings the Planar family's ultra-thin on-wall design together with a built-in 550-watt RMS Pure Class D amplifier and included Airship Direct wireless. Its 8 in FlatPiston active driver and 10 in rear passive radiator provide low-frequency extension specified at -6 dB at 24 Hz in-room. High-Level Neutrik SpeakOn, low-level RCA and LFE RCA inputs accommodate music and home theater connections. Finished in Gloss Piano Black with an included cloth grille, the shallow enclosure uses the rear wall to reinforce bass where a conventional cabinet would intrude on the living space.

Key Features

Designed for Modern Living

Radiused edges, black lacquer, recessed controls and concealed cable routing help the enclosure sit discreetly within a finished room. The supplied cloth grille completes the front, while a premium wood grille is available separately for a different appearance. The shallow profile offers an alternative when a traditional floor-standing subwoofer enclosure would be difficult to accommodate.

8 in FlatPiston Driver and 10 in Passive Radiator

The purpose-developed, long-throw FlatPiston driver combines the excursion and rigidity needed for bass output with a shallow structure. Behind it, the larger FibreAlloy passive radiator directs energy toward the rear wall. That boundary coupling reinforces low-frequency output, making wall interaction part of the acoustic design rather than simply a placement convenience.

550 Watts RMS of Pure Class D Power

A separate subwoofer amplifier is not required: the built-in Pure Class D amplifier is specified at 550 watts RMS.¹ Its design emphasizes current delivery, dynamic control and thermal efficiency for musical bass passages and cinematic effects.

PerfectFilter Analog Integration

Analog input filtering and PerfectFilter circuitry are designed to preserve timing and tonal character without adding digital processing. The focus is on integrating low-frequency reinforcement with the main speakers, not merely adding more bass to the room.

High-Level, RCA and LFE Connections

For stereo listening, the High Level Connection accepts the signal feeding your main speakers through Neutrik SpeakOn. Low-level RCA and dedicated LFE RCA provide additional input paths. High Level and .1/LFE can operate simultaneously, letting one subwoofer serve a system used for both music and movies.

Wireless Freedom Included

The Airship Direct receiver arrives installed in the rear compartment and factory-paired, keeping the wireless hardware out of sight. Setup does not require an app or software updates. Wireless replaces the long audio-signal cable run, but an electrical power connection is still necessary.

VIMAR On-Wall Mounting

VIMAR - Vibration Isolation Material and Resonance Control - is integrated into the mounting brackets to reduce unwanted energy transfer into the wall. A wall-mounting template, brackets, mounting hardware and right-angle power cord are included. For fit planning, the cabinet is 5.7 in deep, and on-wall mounting adds 1.5 in for the bracket. Near-wall placement is also supported with the optional Cart, which is not included.

Music, Home Theater and Open-Plan Spaces

Intended for medium and large rooms, including open-plan environments, the design supports two-channel listening, home theater and rear-wall applications. Distributed multi-subwoofer arrangements are also supported. This configuration supplies one subwoofer; a stereo pair requires two matching units.

Features

• Shallow Gloss Piano Black Design
  A lacquer finish and included cloth grille complement the cabinet's slim profile.
• 8 in FlatPiston Active Driver
  A long-throw design with a steel chassis develops bass from a shallow driver structure.
• 10 in Rear Passive Radiator
  The FibreAlloy cone uses wall-boundary reinforcement to increase low-frequency output.
• 24 Hz In-Room Extension at -6 dB
  Adds low-frequency reach for music and movie soundtracks.
• 550 Watts RMS Pure Class D Amplifier
  Built-in amplification powers the subwoofer without a separate subwoofer amp.
• PerfectFilter Analog Circuitry
  Keeps bass integration on an analog signal path.
• High-Level Neutrik SpeakOn, RCA and LFE Inputs
  Accommodates speaker-level and line-level connections for stereo and theater systems.
• Airship Direct Wireless Included
  A concealed, pre-installed receiver reduces visible signal cabling while retaining the required power connection.
• VIMAR Isolated Mounting Brackets
  Vibration isolation limits unwanted energy transfer through the wall-mounting interface.
• Wall-Mounting Package Included
  A template, brackets, hardware and right-angle power cord support on-wall installation.
• Optional Cart and Premium Wood Grille
  Separately available accessories offer near-wall placement and an alternative grille appearance.
• Electronic Protection Systems
  Includes Fully Electronic Set Safe, D.C. fault and output-short protection.

Footnotes:

¹ 550 watts RMS is the published technical rating. Separate amplifier descriptions cite 500 watts and a 600-watt test-bench result; 600 watts is not the RMS rating.

Performance figures reflect manufacturer testing under specific conditions and vary with the room, settings and use.