Yorkville SA221S Synergy Array Series 2 x 21" 6000 watt Powered Subwoofer

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  • Yorkville SA221S Synergy Array Series Powered Subwoofer front view
  • Yorkville SA221S Synergy Array Series Powered Subwoofer side view
  • Yorkville SA221S Synergy Array Series Powered Subwoofer back panel
  • Yorkville Synergy Array with 2 SA221S Powered Subwoofers and 2 SA153 Powered Full Range Speakers

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SA221S Powered Array Subwoofer at EMI Audio

This powerful dual 21-inch subwoofer is the perfect low-end companion to the Synergy Array series, Yorkville Sound's largest and most powerful point-source system to date. The SA221S can be combined directly with an SA153 as an independent system or in combination with the SA153 and SA315S setup as a 5-way system.



  • Bass Reflex powered subwoofer: 6000 Watts (program), 17,000 Watts (peak)
  • 2 x 21-inch Neodymium woofers with 4.5-inch voice coil
  • Exceptionally high output and deep bass
  • Measured MAX SPL (C-Weighted, Max Hold): 130.6dB continuous, 142.6dB peak
  • Frequency response (Hz +/- 3db): 28Hz-100Hz
  • Crossover frequency (Hz): 50 and 100 Hz low-pass
  • Made in Canada


Active or Passive Active
Power Rating (Watts) 6000 Watts Program (17000 Watts Peak)
Measured Max SPL (C-Weighted, Max Hold) 130.6 dB Cont. 142.6 dB Peak
Frequency Response (Hz +/- 3dB) 28 - 100Hz
Crossover Frequency (Hz) 50/100 lowpass
Cabinet Configuration Bass Reflex
Driver Configuration 2x21" LF woofer
LF Driver(s) 21" Neo with 4.5" Tetra Coil
LF Power Rating(Watts) 6000 Watts Program (17000 Watts Peak)
LF Impedance (Ohms) 2 ohm Load (2 x 4 ohm)
LF Protection Excursion, Voice Coil Thermal (RMS)
LF Power Amplifier (Watts) 6000 Watts Program (17000 Watts Peak)
LF Amplifier Type Class D
Cooling Scheme Convection
Power Cable Removable Locking Powercon True Input and Loop Thru Output
Power Switch Yes
Power Consumption (typ/max) 1440 VA / 1920 VA
Inputs 1 XLR with 2x XLR Parallel out, Impedance 35k ohms
Input Sensitivity (Vrms Sine) Line in 1.4 at center, 0.56 at max
Level Controls Volume, -∞,0dB,8dB (Min, Top, Max)
EQ Controls Thermal Limiter Advance for power consumption management
Limiter Excursion, Thermal (RMS), Clipping
LED Indicators Power, Excursion Limit, Thermal (RMS) Limit, Input Clip, Activity
Enclosure Materials Multiply 15mm Birch Plywood
Stacking Feature Rubber Feet and Cups (Side and Bottom)
Covering / Finish Paint
Other Details 4 x Locking Swivel Casters On Rear Of Cabinet, 2 Stand Adapters (1 Top, 1 Side)
Dimensions (DWH xbackW, inches) 32.75 (37.75 including casters) x 29.75 x 47.5
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