Martin Audio Blackline Q118 Passive Subwoofer

The Martin Audio Blackline Q118 is a passive portable subwoofer designed for high-output sound reinforcement. It features an 18-inch driver delivering 142 dB max peak SPL. Procure.ae supplies this professional audio equipment in the UAE for venues and live events.

The Martin Audio Blackline Q118 delivers deep low-frequency response from 38 Hz to 100 Hz ± 3 dB, reaching a -10 dB point at 31 Hz. It utilizes an 18-inch driver with a 4-inch voice coil and ferrite motor system to achieve 136 dB peak SPL and 101 dB sensitivity. The omnidirectional dispersion ensures consistent coverage for live music applications.

Constructed from durable plywood with black textured paint, the enclosure includes a perforated steel grille with scrim cloth for protection. Connectivity is provided via three NL4 connectors located on the bottom rear (input/link A) and top rear (link B). Dimensions are 530 mm W x 606 mm H x 690 mm D, weighing 45.5 kg.

Type

Passive portable subwoofer

Weight

45.5 kg (100.3 lbs)

Key features

High Output Driver

An 18-inch driver with a 4-inch voice coil provides 136 dB peak SPL and 142 dB max peak SPL for powerful bass reproduction.

Frequency Response Range

The subwoofer covers frequencies from 38 Hz to 100 Hz ± 3 dB, extending down to a -10 dB point at 31 Hz for deep impact.

Durable Enclosure Design

Built with durable plywood and finished in black textured paint, it features integral ergonomic bar handles for easy transport and installation.

Multiple Connectivity Options

Three NL4 connectors allow for flexible linking, with input on the bottom rear and link output on the top rear of the unit.

Specifications

General
Model	Blackline Q118
Type	Passive portable subwoofer

Audio
Frequency Response	38 Hz – 100 Hz ± 3 dB
Impedance	8 ohm
Max SPL	136 dB peak, 142 dB peak (crest factor 4)
Polar Pattern	Omnidirectional
Sensitivity	101 dB
Speaker Size	18 inch (460 mm)

Connectivity
Connector Type	3 x NL4 connectors

Physical
Dimensions	530 mm W x 606 mm H x 690 mm D (20.9 in x 23.9 in x 27.2 in)
Finish	Black textured paint
Material	Durable plywood enclosure
Weight	45.5 kg (100.3 lbs)

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This sheet is compiled from the product data held on procure.ae. For fully accurate and up-to-date figures, always refer to the manufacturer’s own specification sheet or datasheet for this model.

Specifications are provided by the manufacturer and may change without notice.

Pricing is quote-based. Contact Procure for current pricing and availability.

Delivery across the UAE and beyond, installation on request and manufacturer-backed warranty.