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.

The cabinet construction uses marine grade birch plywood as well as aircraft grade steel and aluminum, and is equipped with two front and back Speakon™ NL4 connectors as well as optional screw terminals. A dual grill solution is used so that when arranged in cardioid mode, the appearance does not change. The integrated rigging system matches the rigging for the IS7 and can be flown in the same array with a simple adapter frame.


Frequency Range (+/-3 dB) 35 Hz - 80 Hz
Maximum Peak SPL** 137 dB
Components LF ND18-S 18” Kevlar Neodymium Driver
Nominal Impedance LF 8 Ω
Power Handling (AES / Peak) LF 800 / 3200 W

Integrated Rigging System

Connection 4x Speakon™ NL4 (2x Front 1+/1-, 2x Rear (2+/2-), Screw Terminals (On Demand)
Height Front (mm / in) 528 / 20.8
Width (mm / in) 527 / 20.75
Depth (mm / in) 630 / 24.8
Weight (kg / lbs) 39 / 85
Supported Processing Lake

**12 dB crest factor pink noise at 1m, half space, using specified processing and amplification


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