Yorkville SA221S | Dual 21in - 142.6 dB

High-Powered Dual 21" Portable Subwoofer for Professional Sound Systems

The Yorkville Sound SA221S is a powerful, dual 21” powered subwoofer from the Synergy Array Series, designed for top-tier sound reinforcement applications. Whether used with the SA153 full-range speaker or integrated into a scalable system with the SA315S subwoofer, the SA221S delivers deep, punchy bass with remarkable power handling and efficiency. Ideal for concerts, festivals, touring bands, DJs, and rental companies, this subwoofer provides exceptional performance with seamless integration into any professional setup.

Yorkville Sound SA221S Competitive Differences

• Massive Power Output: 6000W program, 17,000W peak for industry-leading bass response.
• Dual 21" Neodymium Woofers: Equipped with 4.5" voice coils for high efficiency and deep low-end performance.
• Optimized DSP Processing: Includes IIR filters for crossover/equalization and built-in limiters for over-excursion (X-Max), voice coil overheating (VC thermal), and clipping protection.
• Customizable Power Management: Adjustable Average Power Limit (100%, 75%, 50%) to prevent overloading when power is limited.
• Advanced Connectivity: Single XLR input, two parallel XLR outputs, and up to 20 units can be daisy-chained with balanced cables.
• Precision Time Alignment: Built-in delay ensures perfect synchronization with the SA153 top speaker.
• Road-Ready Design: Rugged 15mm birch plywood cabinet, reinforced with a durable speaker paint coating and equipped with four locking swivel casters for mobility.
• Flexible Placement Options: Integrated stand adapters on both the top and side, plus rubber feet and cups for stable stacking.

Yorkville Sound SA221S Description

The SA221S is engineered for professionals seeking high-output, deep bass extension without compromising portability. Yorkville’s meticulous amplifier design and DSP optimization ensure powerful transients and sustained low-end reproduction without power sag. This makes it an exceptional choice for bass-heavy applications, delivering an immersive audio experience. A key feature of the SA221S is its advanced DSP platform, which intelligently manages limiter functions to prevent speaker damage while maintaining dynamic range. The system includes frequency-sensitive X-Max and VC thermal limiters, calibrated to protect the drivers without affecting sound quality. Additionally, the subwoofer features an adjustable Average Power Limit function, allowing users to manage power draw in venues with restricted electrical capacity. Connectivity is streamlined with a single XLR input and two parallel XLR outputs for easy signal distribution. The SA221S supports daisy-chaining of up to 20 units, ensuring no signal loss when building large-scale sound systems. The rear panel also includes a selectable high-pass filter at 50Hz or 100Hz for seamless integration with Yorkville’s Synergy Array Series. Designed for rugged performance, the SA221S is constructed from high-strength birch plywood and features a durable protective coating. Its ergonomic design includes multiple handles, integrated stand mounts, and heavy-duty casters for easy transportation. This subwoofer is built to withstand the demands of professional touring and live event applications.

SA221S Features

• High-powered bass-reflex subwoofer with 6000W program and 17,000W peak power.
• Dual 21” neodymium woofers with 4.5” voice coils for deep bass response.
• Advanced DSP with IIR filters for optimized crossover and EQ.
• X-Max limiting, VC thermal protection, and intelligent clipping management.
• Selectable high-pass filter (50Hz or 100Hz) for integration with different speaker setups.
• Adjustable Average Power Limit (100%, 75%, 50%) to manage power consumption.
• Single XLR input and two parallel XLR outputs for flexible signal routing.
• Up to 20 units can be daisy-chained without signal loss.
• Constructed with 15mm birch plywood and durable speaker paint coating.
• Integrated stand mounts and rubber feet for versatile positioning.
• Four locking swivel casters for easy mobility.

SA221S Specifications

• Configuration: Active Dual Subwoofer (Bass-Reflex)
• Total Power Capacity: 6000W (Program), 17,000W (Peak)
• Amplifier Class: Class-D
• LF Driver: 2x 21" / 53.34 cm Woofer
• LF Voice Coil: 4.5" / 114.3 mm
• Magnet Type: Neodymium
• Frequency Response: 28 Hz to 100 Hz (±3 dB)
• Maximum SPL: 130.6 dB (Continuous), 142.6 dB (Peak)
• Gain Range: -24 dB to +8 dB
• I/O Impedance: 35 kΩ (Balanced Input)
• Protections: Overload, Excursion, Output Limiter, Overvoltage, Power Supply, Thermal
• Audio I/O:
  • 1x XLR 3-Pin Female Balanced Line Input
  • 2x XLR 3-Pin Male Balanced Line Output
  • 1x XLR 3-Pin Male Balanced High-Pass Output
• Signal Processing: Fast Limiter, Peak Limiter
• Crossover Frequency: 50Hz / 100Hz
• AC Power Input: 100-240V, 50/60Hz
• AC Power I/O:
  • 1x powerCON Input (Locking)
  • 1x powerCON Output (Locking)
• Current Consumption:
  • 120V: 16A (Max), 12A (Typical)
  • 240V: 8A (Max), 6A (Typical)
• Construction Material: Birch Plywood
• Handles: 4x Top, 4x Bottom, 4x Each Side
• Cooling: Convection
• Dimensions (With Casters): 37.8 x 29.8 x 47.5 in (96 x 75.7 x 120.7 cm)
• Weight: 319 lb (144.7 kg)

What's in the Box

• Yorkville Sound SA221S Synergy Array Series Dual 21" Powered Portable Subwoofer
• Power Cable
• Limited 2-Year Warranty (10-Year Warranty on Wooden Enclosure Elements)

This professional-grade subwoofer delivers unmatched power and bass response, making it an essential choice for serious sound professionals.