PRODUCT GUIDE
REL Acoustics No.31
Explore the REL Acoustics No.31, a reference powered subwoofer, and the practical questions that help determine its place in your music system.
Design and purpose
No.31 is a sealed, front-firing subwoofer with a 12-inch carbon-fiber driver and a 900-watt NextGen 7 Class D amplifier. Its dual parametric filtering and reference remote support in-room adjustment. High-level, line-level and LFE connections provide integration options, and the model supports REL line-array configurations.
Manufacturer specifications
The following details are published by the manufacturer. Final configurations and specifications should be confirmed for the unit under consideration.
| Power | 900 W RMS |
|---|---|
| Driver | 12-inch long-throw carbon fiber |
| Low frequency extension | 17 Hz at −6 dB |
| Cabinet | Closed box, front firing |
| Weight | 114.5 lb / 52 kg |
Plan its place in your system
Subwoofer integration begins with the main speakers, amplifier and room. Discuss placement options and the desired listening result before choosing connections and setup. A single unit, stereo pair and line array each involve different space and configuration decisions.
Discuss the next step
Explore more about REL Acoustics, or use our component-selection service to discuss the complete system. Contact Minneapolis HIFI for current configurations and demonstration availability. Visits are by appointment only.
Questions before you listen
What connections does No.31 offer?
High-level Neutrik Speakon, low-level RCA, and LFE RCA/XLR connections are listed by REL.
Is No.31 wireless?
Wireless operation requires the separately sold REL AirShip II.
Can you help assess No.31 for my room?
Share your room dimensions, speaker and amplifier models, and placement options. Minneapolis HIFI can discuss the system and current consultation arrangements.
Manufacturer resources
Hear what matters to you.
Private listening by appointment at 2400 N. 2nd Street, Unit 103, Minneapolis, MN 55411. Call or text 612-965-6635 to discuss your room, your system and your music.