REL Acoustics Planar Dual 6.5-Inch Powered Subwoofer in Gloss Piano Black (Each) - PLANAR PL-1 BLACK

REL Acoustics PLANAR PL-1 BLACK Planar Dual 6.5-Inch Powered Subwoofer in Gloss Piano Black (Each)

The REL Acoustics PLANAR PL-1 BLACK powered subwoofer combines a slim, wall-mountable cabinet with 300 W RMS Pure Class D amplification, twin 6.5 in active drivers and a 10 in rear passive radiator. Low-frequency extension is -6 dB at 31 Hz in-room, with the nearby wall forming part of the acoustic design. Included Airship Direct wireless handles the audio signal while AC power remains necessary. Finished in Gloss Piano Black with a cloth grille, it is designed for compact and medium-size listening spaces, bringing bass support to music systems, smaller home theaters and center-channel reinforcement.

Key Features

Twin FibreAlloy Drivers and Wall-Coupled Bass

Two front-firing 6.5 in FibreAlloy cones share bass duties, combining long-throw movement with steel chassis. Behind them, the 10 in passive radiator deliberately works with the adjacent wall to extend low-frequency reach and give bass a greater sense of scale. Rather than treating that boundary only as a placement restriction, the acoustic design puts it to work.

300 W RMS Pure Class D Amplification

The amplifier is built in, so a separate subwoofer amplifier is not needed. Its design emphasizes headroom for musical passages and cinematic dynamics, with power and control tailored to the shallow enclosure. The aim is to complement the main speakers and make the system sound more complete without drawing attention to the subwoofer itself.

Slim Wall-Mount or Optional Cart Placement

Supplied wall brackets, mounting hardware and a template support an installation that keeps the cabinet off the floor. A right-angle power cord accommodates on-wall use. For near-wall placement without wall mounting, the Planar Cart is available separately; allow for the mounting bracket's added depth when planning an on-wall installation and follow the complete installation instructions.

Included Airship Direct Wireless

The wireless receiver is already installed and concealed at the rear, and the supplied system arrives factory paired. That removes the need to route a long audio-signal cable from the system to the subwoofer, without app-based setup or ongoing software updates. Wireless applies to the audio connection, not the power supply: an AC connection is still needed.

Speaker-Level Inputs and PerfectFilter Integration

The HIGH-LEVEL Neutrik SpeakOn connection accepts the signal supplied to the main speakers, while LOW-LEVEL RCA and LFE RCA inputs offer additional ways to connect. Analog input filters and PerfectFilter circuitry are intended to preserve timing and tonal integration, keeping the focus on bass that complements the main speaker system without unnecessary digital processing.

VIMAR Wall-Mount Isolation

Vibration Isolation Material and Resonance Control is integrated into the mounting bracket to limit unwanted vibration transfer to the wall. This serves a different purpose from the rear radiator's wall coupling: the radiator uses the boundary acoustically, while VIMAR addresses vibration through the mounting interface.

Gloss Piano Black, Discreet Controls

A lacquered finish and softened cabinet edges help the subwoofer sit comfortably alongside furniture and displays. Recessed controls, a control-panel cover and concealed cable routing keep functional details from dominating the look. This configuration includes the cloth grille; a premium wood grille is an optional, separately sold upgrade.

Who It Is For

Designed for music and smaller home theaters, this approach suits compact and medium-size rooms with stand-mounted speakers or smaller floorstanding speakers. Center-channel bass reinforcement is another supported application. This configuration supplies one subwoofer; a stereo pair requires matching models.

Features

• Twin 6.5 in FibreAlloy Active Drivers
  Long-throw, front-firing cones add low-frequency support alongside the main speakers.
• 10 in Rear Passive Radiator
  Wall-coupled bass supports system extension rated at -6 dB at 31 Hz in-room.
• 300 W RMS Pure Class D Amplifier
  Built-in amplification supports musical passages and movie dynamics.
• Slim Wall-Mountable Cabinet
  Included brackets, hardware and a template provide the mounting components for on-wall placement.
• Included Airship Direct Wireless
  Send audio without a long signal-cable run using the supplied pre-paired system.
• HIGH-LEVEL SpeakOn, LOW-LEVEL RCA and LFE RCA
  Select the connection that matches your audio system.
• Analog Filters and PerfectFilter Circuitry
  The signal path is designed around timing and tonal balance.
• VIMAR Isolation
  Isolation at the bracket helps curb unwanted wall vibration transfer.
• Gloss Piano Black and Cloth Grille
  The lacquered black finish comes paired with the included cloth grille.
• Recessed Controls and Hidden Cable Routing
  Keep control access and cable paths visually discreet.
• Optional Planar Cart and Premium Wood Grille
  Alternative placement and grille styling are available through separately sold accessories.
• Electronic Protection Systems
  Fully Electronic Set Safe, DC-fault and output-short protection are built in.

Footnotes:

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

Installation safety: Ceiling installation is prohibited. Sheetrock installations require attachment to structural studs, not drywall alone; the supplied insert requires glue. Consult the supplied owner's manual, installation template and REL Acoustics support to confirm bracket screw placement before drilling. Professional assistance is recommended for plaster walls, and two people are recommended for easier installation. Installation videos supplement, but do not replace, the complete written instructions and manual.

For cart or other non-wall-mounted use, fitting the included anti-fall restraint according to the owner's manual is recommended to reduce tipping risk.