Yorkville SA218S - 12000W 2 x 18-inch Powered Bass Reflex Subwoofer with 4.5-inch Voice Coils in Black Finish

The Yorkville SA218S is a 12000W dual 18-inch powered bass reflex subwoofer designed to provide high-impact bass for professional sound reinforcement. Part of the Synergy series, the SA218S is ideal for clubs, theater installations, and touring productions, offering powerful, deep bass with exceptional output. The dual 18-inch woofers with 4.5-inch voice coils deliver the low-end performance needed for demanding environments, while the bass reflex design ensures maximum efficiency and clarity. Whether used with an SA102 or SA153 as an independent system or as part of a larger 5-way system with the SA153 and SA315S, the SA218S brings world-class bass reinforcement to any setup.

Built without compromise, the SA218S features top-of-the-line 18-inch woofers, driver-specific amplification, and optimized DSP settings for superior bass performance. With a frequency response range of 30 Hz to 100 Hz, this subwoofer delivers exceptionally deep and controlled bass that enhances the overall sound experience. The high-power Class D amplifiers are designed to drive the woofers efficiently, while the convection cooling system keeps the unit running quietly and reliably during extended use. The SA218S is perfect for venues that require high-output bass in a compact and durable form factor, making it a great choice for professional sound providers.

The SA218S is also equipped with convenient features such as interlocking rubber feet for stable stacking, multiple bar handles for easy transport, and a removable locking powerCON TRUE1 input and loop-thru output. The subwoofer's rugged multi-ply 15 mm birch plywood enclosure, finished in durable paint, ensures that it stands up to the rigors of touring and live performances. LED indicators for power, excursion limit, thermal limit, input clip, and activity help users monitor performance and manage the system effectively, while the thermal limiter advance provides power consumption management for mobile and touring applications.

Features

• 12000W peak power (6000W program) for high-output bass performance
• Frequency response: 30 Hz to 100 Hz ±3 dB for deep, accurate low-end reproduction
• 142 dB peak SPL (C-weighted) for powerful, hard-hitting bass
• 2x 18" neodymium woofers with 4.5" voice coils for efficient low-frequency handling
• Bass reflex design for optimized performance and increased efficiency
• Class D amplifiers for both LF and HF power with convection cooling
• 1x XLR input, 2x XLR full-range outputs, and 1x XLR high-pass output for flexible connectivity
• Excursion, thermal (RMS), and clipping limiters for driver protection
• LED indicators for power, excursion limit, thermal limit, input clip, and activity
• Convenient powerCON TRUE1 locking input and loop-thru output
• Dimensions: 28.9 x 44 x 22 inches
• Weight: 248 lbs

Specifications

Speaker

• System Type: Powered Subwoofer
• Power Rating: 12000 W Peak (6000 W Program)
• Measured Max SPL (C-Weighted CM Max Hold): 142 dB Peak (130 dB Continuous)
• Frequency Response (Hz +/- 3dB): 30 Hz - 100 Hz
• Crossover Frequency: 100 Hz

Transducers

• Driver Configuration: 2x 18" Neodymium with 4.5" Voice Coil
• LF Protection: Excursion, Voice Coil Thermal (RMS)

Amplifier

• HF Amplifier Type: Class D
• LF Amplifier Type: Class D
• Cooling Scheme: Convection

Power

• Power Cable: Removable Locking powerCON TRUE1 Input and Loop Thru Output

Inputs

• In / Out Connections: 1x XLR Input, 2x XLR Full-Range Outputs, 1x XLR High-Pass
• Input Sensitivity (Vrms Sine): Line In 1.4 at Centre, 0.56 at Max

Controls

• Controls: Thermal Limiter Advance for Power Consumption Management
• Level Controls: -∞ to +8 dB
• Limiter: Excursion, Thermal (RMS), Clipping
• LED Indicators: Power, Excursion Limit, Thermal (RMS) Limit, Input Clip, Activity

Physical

• Wheels: Yes
• Bar Handles: 8 (2x Bottom, 2x Top, 2x Each Side)
• Pole Mount Adapter (1 3/8): 2 (1x Top, 1x Side)
• Enclosure Materials: Multi-ply 15 mm Birch Plywood
• Stacking Feature: Interlocking Rubber Feet (Sides)
• Covering / Finish: Paint
• Dimensions (DWH): 28.9 x 44 x 22 inches
• Weight: 248 lbs