The S118 Subwoofer is the companion subwoofer to the S7. The enclosure is loaded with a light weight, long excursion, 18” ND18-S Kevlar Neodymium driver utilizing Adamson’s Advanced Cone Architecture and a 4” voice coil for exceptional power handling. 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 Speakon™ NL4 connectors. The integrated rigging system matches the rigging for the S7 and can be flown or stacked in the same array without the need for an adapter frame.
Frequency Range (+/-3 dB) | 35 Hz - 100 Hz |
Maximum Peak SPL** | 133 dB |
Components LF | ND18-S 18" Kevlar® Neodymium Driver |
Nominal Impedance LF | 8 Ω |
Power Handling (AES / Peak) LF | 500 / 2000 W |
Rigging | Slidelock Rigging System Built-in M20 Thread |
Connection | 5x Speakon™ NL4: 2x Front (Pins 2 +/-), 2x Rear (Pins 1 +/-), 1x Rear Output (Pin 2 to 1) |
Height Front (mm / in) | 508 / 20 |
Width (mm / in) | 527 / 20.75 |
Depth (mm / in) | 495 / 19.5 |
Weight (kg / lbs) | 31 / 68.4 |
Supported Processing | Lake |
**12 dB crest factor pink noise at 1m, half space, using specified processing and amplification
![]() | Ultra-Compact Support Frame (930-0025) | Support frame for S7, CS7, S118 & CS118 enclosures |
![]() | Extended Beam (930-0021) | Accommodates greater array articulation |
![]() | Moving Point Extended Beam (930-0033) | Extension beam with continuously adjustable pick point |
![]() | Line Array H-Clamp (932-0047) | Horizontal articulator clamp to be used with S-Series/CS-Series/IS-Series line array rigging frames (max load: 200 kg) |
![]() | Extended Lifting Plates (932-0043) | Lifting plates with fine resolution pick points for single point hangs (2 per set) |
![]() | Ultra-Compact Subwoofer Dolly (938-0023) | Transports up to 2x S118/CS118 |
![]() | Ultra-Compact Subwoofer Cover (907-0033) | Accessory: cover for 2x S118/CS118 stacked on an Ultra-Compact Dolly (938-0023) |
S118 Spec Sheet | One page spec sheet for the S118 | n/a |
S118 User Manual | Comprehensive User Manual for the S118 | n/a |
S-Series Configuration Brochure | A document outlining the factory recommended configurations for the S-Series | n/a |
3D CAD Drawings | 3D CAD drawings of all S-Series enclosures | n/a |
Adamson Amplification Chart V5.3 | Displays the maximum amount of Adamson loudspeakers that can be used with approved amplifiers. | n/a |
Adamson Load Library V5.4 | Adamson's updated preset library - Requires Lake Controller 7.0.0 or higher | n/a |
![]() |
![]() |
![]() |