Sub 18

High-power sub-bass loudspeaker

Features
  • Compact size
  • Powerful sub-bass support down to 42Hz (± 3dB)
  • High power handling

Cafes

Bars/Restaurants

Wedding Venues

Hotels

Education Facilities

Houses of Worship

Fitness Studios

Sub 18 is a powerful, high-performance, passive, 18” subwoofer designed for applications that call for increased impact and low frequency performance across the Optimal Audio loudspeaker range.

The 18” (460mm) driver is loaded into a plywood bass-reflex cabinet that maximises performance, with a peak SPL of 136dB, while taking up minimal space. Sub 18 can be used on the ground or flown using integral M8 inserts.

An impact-resistant perforated steel grille protects the driver, and rubber feet on the base resist movement. The Sub 18 enclosure is constructed from plywood and finished in black textured paint.

When teamed with Zone and WebApp, system set up and end user control is simple and intuitive, and can be further supplemented by ZonePad wall controllers.

TYPESub-bass loudspeaker
FREQUENCY RESPONSE (with preset)

42Hz-150Hz +/- 3dB
-10dB @ 36Hz

DRIVERS

LF: 18” (460mm)

RATED POWER800W (AES) 3200W (peak)
NOMINAL IMPEDANCE
SENSITIVITY (1W/1m)101dB (Half Space)
MAXIMUM SPL130dB (cont) 136dB (peak) (Half Space)
ENCLOSUREPlywood
FINISHBlack Textured Paint
PROTECTIVE GRILLEPerforated steel
CONNECTORSEuroblock type
PIN CONNECTIONS (INPUT)4 pin Euroblock with link out
FITTINGS 12 x M8, Inset bolts
DIMENSIONS

(W) 756mm x (H) 530mm x (D) 544mm
(W) 29.76” x (H) 20.86” x (D) 21.42”

WEIGHT47.0kg (103.6 lbs)

Optimal Audio Sub 18 Subwoofer FAQs

What types of venues benefit from the Sub 18?

The Sub 18 is perfect for venues where powerful, high-performance impactful low frequencies are essential. This includes bars and restaurants wanting background music, fitness studios with high-energy audio, hotels and houses of worship hosting live performances or events.

Yes, the Sub 18 subwoofer is designed for both small and large venues. Thanks to its powerful bass output and compact design, whether you’re equipping a small café or outfitting a large performance space.

The Sub 18 is designed to seamlessly integrate with the Optimal Audio ecosystem of controllers, amplifiers and loudspeakers. This makes it easy to create a sound system tailored to the venue’s requirements.

Sub presets are available with EQ and limiters in SmartAmp amplifiers, and Zone controllers with WebApp one-click presets. This allows for quick and easy system setup for integrators that meet the venue’s specific needs.

The Sub 18 can be placed on the ground using rubber feet or suspended with M8 inserts for flown installations, offering flexible mounting options for different setups.

Sub 6

Ultra-compact sub-bass loudspeaker

Sub 10

Low-profile sub-bass loudspeaker

Sub 15

High-power sub-bass loudspeaker

Sub 18

High-power sub-bass loudspeaker