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The IS118 is the companion subwoofer to the IS7. The enclosure is loaded with a light weight, long excursion, 18” ND18-S Kevlar Neodymium driver utilizing Adamson’s Advanced Cone Architecture. It is mounted in an ultra-efficient front-loaded enclosure, designed to reproduce clean, musical low frequency information.


1 x 18” Kevlar Neodymium Driver
39 kg
35 Hz - 100 Hz
8 Ohms
Radiation Direct Bass-reflex
Omni 360°
Rigging Install
Config Cordio Possible


Compact Set
2 x 4 IS7
2 x 2 IS118
Performance Set
2 x 8 IS7
2 x 6 IS118
High Performance Set
2 x 12 IS7
2 x 10 IS118


IS7 & IS118 Support Frame
S-Series Extended Beam
S-Series Moving Point Extended Beam


IS118 Spec Sheet

Spec sheet for the IS118

IS118 User Manual

Comprehensive User Manual for the IS118

IS Line Array Rigging Manual

Comprehensive Manual for the rigging of all IS Series Line Array

IS-Series Brochure

Product brochure for Adamson’s IS-Series

3D CAD Drawings IS Series

3D CAD drawings of the IS-Series enclosures

Adamson Amplification Chart V5.3

Displays the maximum amount of Adamson loudspeakers that can be used with approved amplifiers

Adamson Load Library 5.4

Adamson’s updated preset library requires Lake Controller 7.0.0 or higher

BluePrint 1.3.3 (Windows)

Simulation Software for PC

BluePrint 1.3.3 (MAC)

Simulation Software for MAC