SU221

TOURING VENTED 2x 21" EXTREME HIGH SPL SUBWOOFER

Multi-purpose touring vented subwoofer
Down to 28Hz and still 102dB/1W/1m Efficiency
Real 3600W RMS power capacity
Premium 2 x 21” LF drivers with massive ±15mm linear Xmax
Patented DCS cooling system for low power compression
Heavy braced cabinet for vibration free dynamic response
Touring grade Rubberized black PolyUrea finish

Power handling (AES)	3600W RMS / 14400W Peak
Nominal impedance	4 ohms
Frequency response (-6dB half space, no EQ)	28~1000Hz
Average Sensitivity in useable band (40~100Hz)	102dB/W/m
Calculated Maximum SPL / 1m	137dB RMS / 143dB Peak
Nominal Directivity (-6dB)	Omni in useable band
Low Frequency driver	21" CELTO Acoustique Ferrite magnet, 4.5” ultra long stroke In / Out Voice coil
Crossover	No, active mode only (CLM48 DSP)
Flying hardware	No, stack ground use only
Connectors	2x NEUTRIK Speakon® NL4MP (1+/1- Input) (2 at the Back)
Pole mount	Yes, 2pcs M20 threaded pole
Cabinet	CNC made with tongue and grove assembly 18mm Baltic birch plywood, exterior grade
Finish	Touring grade rubberized black PolyUrea coating
Speaker size (HxWxD)	588x1226x805 mm
Speaker Weight	104kg
Shipping information	117kg 710x1380x915 mm

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SU221 subwoofer is suitable for heavy bass reinforcement for main PA systems, touring or permanent installations for small to large stages, indoor or outdoor live performances.
Suitable in spaces like: