Adamson S118 Ultra-Compact Subwoofer

Product Introduction

The S118 is an ultra-compact subwoofer enclosure designed for extended LF capabilities, featuring one ND18-S 18" LF driver.

It supports flying or stacking with the S7 without additional rigging hardware. The S118 can be flown in arrays of up to 16 units using the Ultra-Compact Support Frame.

Utilizing proprietary technologies like Advanced Cone Architecture, the S118 achieves a maximum SPL of 133 dB.

Key Specifications:

• Nominal Impedance: 8 Ω
• Operational Frequency Range: 35 Hz to 100 Hz, +/- 3 dB
• Recommended Crossover: 80 Hz (when paired with other S-Series products)
• Enclosure: Marine grade birch plywood with integrated aluminum and steel rigging system and a top pole mount.
• Weight: 31 kg / 68.4 lbs
• Designed for use with Lab.gruppen's PLM+ Series amplifiers.

Wiring

The S118 (992-0009) is equipped with five Neutrik Speakon™ NL4 connections.

Two rear 'Parallel' NL4 connections pass pin 1 +/- to the driver. Two front NL4 connections pass pin 2 +/- to the driver.

A single rear 'Output' connection is also present. The rear NL4 Parallel connection's pins 2 +/- are passed through to the NL4 Output connection's pins 1 +/-.

Connection Details:

• Front: 2x NL4 (Pin 2 +/- to driver)
• Rear Parallel Input: 2x NL4 (Pin 1 +/- to driver)
• Rear Output: 1x NL4 (Passes through rear parallel input pins 2 +/- to output pins 1 +/-)

Diagrams show rear and front views of the S118 jackplate with Neutrik NL4 connectors, illustrating pin assignments for input and output.

Amplification

The S118 is designed to be paired with Lab Gruppen PLM+ Series amplifiers. The following diagrams illustrate maximum quantities per amplifier model:

PLM 12k44 Configuration:

4x S118 per circuit; 12x S118 per amplifier.

Diagram shows 3x PLM 12k44 amplifiers, each powering 4x S118 units per circuit.

PLM 20k44 Configuration:

4x S118 per circuit; 16x S118 per amplifier.

Diagram shows 2x PLM 20k44 amplifiers, each powering 4x S118 units per circuit.

Refer to the Adamson Amplification Chart on the Adamson website for a comprehensive list.

Presets

The Adamson Load Library provides presets for various S118 applications. When flown or stacked with an S7 in the same array, S118 presets include necessary delay for phase alignment.

For separate flown or ground-stacked configurations, phase alignment should be performed using measurement software.

Conventional Crossover (CC) versions of S118 presets are available, with a 5 ms delay reduction.

Preset Configurations:

• S118 (Omni pattern): All S118 units facing forward.
• S118 FB (Cardioid pattern): Bottom S118 forward facing, top S118 reversed.
• S118 FBF (Cardioid pattern): Bottom and top S118 forward facing, middle S118 reversed.
• S118 EF40 (Cardioid pattern): End Fire configuration with 40" / 100 cm distance between front units.

Diagrams illustrate different subwoofer configurations: S118 (all forward), S118 FB (bottom forward, top reversed), S118 FBF (two forward, one reversed), and S118 EF40 (end-fire arrangement).

Refer to the Adamson PLM & Lake Handbook for a master list of presets.

Technical Specifications

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

Dimensions: Height: 508 mm (20 in), Width: 527 mm (20.75 in), Depth: 495 mm (19.5 in)

Diagrams show the physical dimensions of the S118 subwoofer.

Safety & Warnings

Important: Read and keep these instructions for reference. This manual can be downloaded from https://adamsonsystems.com/support/downloads-directory/s-series/s118.

Heed all warnings and follow all instructions.

A qualified technician must be present during the installation and use of this product. This product is capable of producing extremely high sound pressure levels and should be used according to specified local sound level regulations and good judgment. Adamson Systems Engineering is not liable for damages caused by misuse.

If the loudspeaker is damaged, or if it does not operate normally for undetermined reasons, servicing is required. Inspect products regularly for visual or functional irregularities.

Protect cabling from being walked on or pinched.

View the S-Series Rigging Tutorial video and/or read the S-Series Rigging Manual before suspending the product.

Pay attention to rigging instructions in both Blueprint and the S-Series Rigging Manual.

Use only with specified Adamson rigging frames/accessories.

Caution: This speaker enclosure generates a strong magnetic field. Exercise caution around data storage devices.

Adamson Systems Engineering reserves the right to change product specifications and document content without prior notice to continuously improve products.

Declarations

EU Declaration of Conformity

Adamson Systems Engineering declares that the products listed below conform to the fundamental health and safety criteria of the applicable EC Directive(s):

• Directive 2014/35/EU: Low Voltage Directive (992-0009 S118)
• Directive 2006/42/EC: Machinery Directive (referencing parts like 930-0021 Extended Beam, 930-0025 Ultra-Compact Support Frame, 930-0033 Moving Point Extended Beam, 932-0043 Extended Lifting Plates, 932-0047 Line Array H-Clamp)

Signed at Port Perry, ON. CA - August 15, 2022

Brock Adamson (President & CEO)

Adamson Systems Engineering, Inc.

1401 Scugog Line 6, Port Perry, Ontario, Canada L9L 0C3

Phone: +1 905 982 0520

Fax: +1 905 982 0609

Email: info@adamsonsystems.com

Website: www.adamsonsystems.com