Revoltage RVSW-118A Active Subwoofer

Revoltage RVSW-118A — 18" Active Subwoofer for Live Sound

The Revoltage RVSW-118A is a professional 18" active subwoofer engineered to deliver deep, punchy, and precise bass that fills any venue. Built for demanding live events, touring rigs, and fixed installations, this model combines high output, tight low-end control, and durable construction in a single integrated cabinet. At its core sits a custom 18" woofer with a 4.0" voice coil, paired with a 2000 W Class-D amplifier that drives clean, powerful performance without weighing down the rig. The RVSW-118A is the right choice for sound engineers and performers who need reliable low-frequency extension that holds up under continuous touring conditions.

What Sets This Subwoofer Apart

What makes this subwoofer stand out is the combination of a 4.0" voice coil inside the 18" driver and a Polyurea-coated plywood cabinet — a build spec normally reserved for higher-tier touring cabinets. The active cooling system keeps the Class-D amp stage thermally stable during long sets, while the iron mesh grille protects the cone from impact damage on the road. Three selectable crossover points (80 Hz, 100 Hz, 120 Hz) make it easy to dial the sub into any full-range top without external processing.

Driver Performance and Acoustic Output

The acoustic heart of the unit is its 18" woofer, sized to move serious air at the lowest octaves where most PA systems fall short. A 4.0" voice coil handles thermal load during sustained high-output passages, keeping distortion low even at peak SPL.

• Woofer Size: 18" — large-format driver for deep, room-filling low end
• Voice Coil: 4.0" — handles sustained high-power passages with low thermal compression
• Max SPL: 132 dB — enough headroom for medium-sized halls and outdoor stages

Amplification and Frequency Response

The built-in Class-D amplifier delivers 2000 W of clean power, removing the need for an external rack amp and simplifying signal flow. Frequency response spans 30 Hz to 140 Hz, covering the sub-bass and low-bass regions where kick drums, bass guitars, and electronic music live.

• Amplifier Type: Class-D, 2000 W — efficient power stage with low heat output
• Frequency Range: 30 Hz - 140 Hz — extends well below audible music fundamentals for true sub-bass impact
• Crossover Points: 80 Hz / 100 Hz / 120 Hz — selectable to match different full-range tops

Connectivity, Cabinet, and Build

Professional XLR inputs and outputs on the rear panel allow the unit to chain into a standard PA signal chain without adapters. The 35 mm pole-mount socket accepts standard distance rods for satellite-top configurations, while the plywood cabinet with Polyurea coating is built to survive repeated truck-loading.

• Inputs / Outputs: XLR in, XLR out — balanced professional connections for clean signal transfer
• Pole Mount: 35 mm socket — accepts standard distance rods for top-cabinet mounting
• Cabinet: Plywood with Polyurea coating and iron mesh grille — touring-grade durability at 39 kg