ALPHAX S18

Deep, controlled cinema bass in a low profile.

A passive low-profile cinema subwoofer with a single 18″ LF driver covering 30 Hz – 200 Hz, rated at 800 W continuous and 3200 W peak, reaching 122 dB max SPL.

  • 1 × 18″ LF driver for deep cinema low end
  • 30 Hz – 200 Hz frequency response
  • 800 W continuous / 3200 W peak at 8 Ω
  • 122 dB max SPL with 99 dB sensitivity
  • Low form factor design for flexible placement
  • Multi-layer plywood with 2 × Neutrik Speakon NL4

Applications

  • Cinemas
  • Private Cinemas
  • Home Theatres
  • Screening Rooms

Why it matters

Why ALPHAX S18

Tight, impactful low end that fits into tight installation spaces

  • 122 dBMAX SPL
  • 30 – 200 HzFREQUENCY RESPONSE
  • 800 WCONTINUOUS POWER
  • 99 dBSENSITIVITY
  • 47 kgNET WEIGHT
  • 01

    Low form factor

    A low-profile cabinet fits tight spaces behind and around the screen.

  • 02

    18″ LF driver

    A single high-output 18″ driver brings effects and music to life.

  • 03

    Down to 30 Hz

    30 Hz – 200 Hz response delivers tight, controlled cinema low end.

  • 04

    Serious headroom

    800 W continuous and 3200 W peak handling into 8 Ω.

  • 05

    High output

    Up to 122 dB max SPL with 99 dB sensitivity.

  • 06

    Built for install

    Black multi-layer plywood with 2 × Neutrik Speakon NL4 connectors.

Built for the cinema

A solid low-frequency foundation for cinemas, private cinemas, home theatres and screening rooms.

  • Cinema subwoofer

Cinema bass down to 30 Hz

A high-output 18″ LF driver covers 30 Hz – 200 Hz, giving tight, controlled low end that brings effects and music to life.

  • 1 × 18″ LF driver

Impact with headroom

Rated at 800 W continuous and 3200 W peak into 8 Ω, it reaches up to 122 dB max SPL with 99 dB sensitivity.

  • 800 W / 3200 W
  • 99 dB sensitivity

Fits tight installation spaces

A low form factor multi-layer plywood cabinet allows flexible placement where space is limited.

  • Multi-layer plywood
  • 2 × Speakon NL4

Technical data

Specifications

Datasheet (PDF)

Electroacoustic

Drivers
1 × 18″ LF
Frequency Response
30 Hz – 200 Hz
Continuous Power
800 W
Peak Power
3200 W
Impedance
8 Ω
Sensitivity
99 dB
Max SPL
122 dB
Connectors
2 × NL4 speakon

Design

Type
Low form factor Cinema Subwoofer
Cabinet Material
Multi-Layer Plywood
Finish
Black

Power & Physical

Dimensions
530 × 450 × 860 mm (W × D × H)
Net Weight
47 kg

Downloads

Low-profile subwoofer for cinema screens

ALPHAX S18 is a low-profile cinema subwoofer, designed for cinemas, private cinemas and home theatres. Our team can help with system design, product selection and a demonstration.

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