First class powered subwoofer

High output, self powered (Class D switch mode power supply) direct radiation subwoofer cabinet.
Consists of an 18″ (4″ DUO voice coil) neodymium magnet transducer withDCS (Double Conex Spider) technology.
DSP controlled with 1000W amplification, 136db SPL


The compact ADP-18S subwoofer cabinet is part of the ADP Self powered, DSP integrated Series. It has been designed to offer the utmost sound reinforcement reliability, incorporating the latest acoustical and electronical technology and delivering incredible, dynamic sound.

The ADP-18S is an extremelly high power subwoofer cabinet providing exceptional low frequency reinforcement for the ADP Full range cabinets. Each cabinet has a DSP integrated for system protection and optimization. Other features include temperature sensor, fan speed control, Ethernet options and many more.

The ADP-18S has an unbeatable power to size ratio, there is no need for external amplification racks, is very light weight and as such is the ideal solution for portable or fixed sound reinforcement enabling quick and easy set-ups. An integrated pole mount enables easy satellite configuration with the ADP full range cabinets.


Perfectly suited for:

→  Theatres & auditoriums
→  Houses of worship
→  Small / middle sized clubs
→  Smaller Live stages / events
→  Front fill / side fill reinforcement
→  Portable sound reinforcement


Technical Data


1 x 18″ Neodymium Woofer with Nomex cone
Frequency Range 30 Hz – 250 Hz (-10dB)
Frequency Response
35 Hz – 150 Hz (± 3dB)
Max SPL 133 dB/ 136 dB peak
Coverage Angle
Power Amplifier 1000 W Class D with switching power supply
Bass-reflex, Direct radiation
Processing 56 bit Lynx DSPB-22
Cabinet Adjustment
back panel LCD

Control Connections

XLR / Ethernet (OCS) optional, USB (DSP programming)

AC Power
90 – 264V 50/60 Hz with PFC

AC Connections

16A Neutrik powerCon with link output

Polyurea coating, black colour


18 mm premium birch plywood

707 x 525 x 717 mm (H x W x D)


51 kg (112 lbs)

More features

Hardware for ADP-18S



The ADP-18S cabinet is constructed from 13-ply premium birch plywood (18mm thickness) and finished with polyurea coating


Internal design

The internal structure of the ADP-18S is heavily braced for greater longevity and all parts are assembled on metal inserts with metric screws. The amplification modules & DSP are housed in a separate chamber to the drivers avoiding excessive heat & vibration, thus delivering greater efficiency and reliability.


Rear panel

The powder coated steel rear panel contains all connections and houses the ADP-18S amplification modules and DSP, is easily accessible and housed separately from the drivers for increased reliability and efficiency



The ADP-18S has a heavy duty, powder coated front grille with a special acoustic rear fabric to protect the transducers against dust and dirt.



An ergonomic, die cast handle with firm internal grip is located on each side of the ADP-18S enclosure to facilitate transport, positioning and loading of the cabinets


It uses one 18” (4” DUO voice coil) neodymium magnet transducer with nomex cone and suspension in direct radiation bass reflex configuration.

Transducer with neodymium magnet groups, nomex cones and suspension prolonging the life of the components.

Weather protected membrane for outdoor use & forced air convection circuit for low power compression. Laminated DUO voice coi l combining two advanced technology materials to enhance longevity.

Ventilated voice coil and magnet circuit for improved heat dissipation. Double Conex Spider technology (DCS) and Mechanical Mirror Suspension System

Accessories for ADP-18S
35mm connecting pole for satellite combination between ADP-18S and ADP full range cabinets
M20 pole support combination between ADP-18S and ADP-15/ ADP-12/ ADP-26. With safety lock
35mm speaker mounting top hat for satellite combination between ADP-18S and ADP full range cabinets
M20 connector plate for the ADP-18S
Rain cover for ADP-18S


Amplification & DSP

1000w Class D with switching power supply amplifier for the 18” transducer. The amplification far exceeds the transducer needs thus resulting in high output, high damping factor and extremely low levels of distortion.

Other products from this series

ADP-215 series2 x 15″ transducers with a 1.4″ diaphragm, 143 dB SPL 

ADP-15 series1 x 15” transducer with a 1.4” driver, 136 dB SPL

ADP-12 series1 x 12” transducer with a 1.4” driver, 136 dB SPL

ADP-26 series2 x 6” transducers with a 1” driver, 127 dB SPL

ADP-212M series2 x 12” transducers with a 1.4” driver, 139 dB SPL

ADP-12M series1 x 12” transducer with a 3” driver, 132 dB SPL

ADP-12S1 x 12” transducer, offering 134 dB SPL

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