Yamaha SW118V Subwoofer Passive - Carpet Covered

The Yamaha SW118V is an 18-inch passive (unpowered) subwoofer that was part of Yamaha's popular Club Series V line of loudspeakers. It was designed to provide robust, extended low-frequency support for live sound applications, mobile DJ setups, and installations.

While it has been discontinued by Yamaha, it remains a common sight in many older PA systems and the used market due to its reputation for durability and solid performance.

Here's a detailed look at its key features and specifications:

Core Design & Components:

• 18-inch Passive Subwoofer: This means it requires an external power amplifier to operate.

• Woofer: Features a custom-made 18-inch cast frame driver with a curvilinear cone and a Kapton voice coil former. The cast aluminum frame helps support the large magnet structure, reduces flex, and aids in heat dissipation.

• Bass-Reflex Design: The enclosure utilizes a front-ported bass-reflex design, which is efficient at reproducing low frequencies and contributes to its deep bass response.

• Rugged Enclosure: Constructed from high-quality particleboard chosen for its strength and elasticity. The cabinet is typically covered in durable black carpet (the "S" in "SW" often denoted carpeted finish, while "CW" denoted spray-on coating in the Club V series) with steel corner protectors and a heavy-duty arced steel grille to withstand the rigors of frequent transport and use.

• Power Handling:

  • Noise (RMS): 300 Watts

  • Program: 600 Watts

  • Peak: 1200 WattsIt's important to match these power ratings appropriately with a suitable external amplifier. For optimal performance and longevity, an amplifier that can deliver continuous power close to the "Program" rating (600W at 8 ohms) or slightly above is generally recommended.

• Nominal Impedance: 8 Ohms, making it compatible with a wide range of power amplifiers.

• Frequency Range (-10dB): 30Hz - 2kHz. This indicates its ability to reproduce very deep bass frequencies, down to 30 Hz, which is excellent for dance music and full-range sound.

• Sensitivity (1W, 1m): 96 dB SPL. This is a respectable sensitivity rating, meaning it can produce a good amount of volume with relatively little power.

• Maximum SPL: 127 dB SPL (Peak). This signifies its capability to deliver significant volume for its size.

Connectivity & Practicality:

• Dual Input Connectors: Equipped with both dual Neutrik Speakon NL4MP connectors and dual 1/4" phone jacks. This allows for flexible connectivity and easy "daisy-chaining" to connect multiple subwoofers or pass the signal to other speakers.

• Integral Pole Socket: Features a standard 1-3/8" (35mm) pole socket on the top of the cabinet. This allows you to mount a full-range main PA speaker (like a Yamaha S112V or S115V from the same series) directly on top of the subwoofer using a speaker pole, creating a compact and vertically aligned sound system.

• Recessed Steel Carrying Handles: Heavy-duty, recessed steel handles on the sides make it easier to lift and transport, despite its substantial weight.

• Weight: Approximately 32.2 kg (71 lbs). It's a solid, heavy speaker, typical for an 18-inch passive subwoofer designed for performance.

Applications:

• Live Bands: Provides essential low-end punch for drums, bass guitar, and kick drum.

• Mobile DJs: Delivers the deep, impactful bass crucial for dance music.

• Small to Medium-sized Venues: Can significantly enhance the overall sound experience when paired with suitable full-range speakers.

• Houses of Worship and Schools: For events and music reinforcement where a fuller sound is desired.

The Yamaha SW118V was a workhorse subwoofer known for its robust build, reliable performance, and ability to deliver solid low-end extension. While superseded by newer active designs and series from Yamaha, it remains a testament to the Club Series' reputation for being durable and effective solutions for live sound.