Passive Subwoofer

P/N. 10424850



High power ultra low frequency subwoofer system
Twin 21” Neodymium loudspeakers with 6” voice coils
Solid 21 mm Birch plywood construction
Impressive 60 mm peaktopeak excursion


House of worship
Theatres, auditoria and performing arts centers
Live music clubs
Corporate A/V
Live sound touring/Rental services

The UX-221 comprises two 21″ loudspeakers equipped with 6″ voice coils and offers a power handling capacity of 8000 Wpeak each loudspeaker. The impressive 60 mm peak-to-peak excursion, powerful neodymium magnet assembly and double silicone spider with optimized compliance provide for commanding low frequency response.

The enclosure is constructed using 21 mm Birch plywood and makes use of extensive bracing to eliminate resonances. The woodwork is finished with the robust DAS ISO-flex protective coating for durability. A dolly platform with locking casters denominated the PL-221S is offered to stack and move the systems. Protection during transport is provided by the optional covers available from DAS.
Frequency Range (-10 dB)28 Hz – 125 Hz
Nominal Impedance2 x 4 ohms
RMS Power Handling2 x 2000 W
Peak Power Handling2 x 8000 W
On-axis Sensitivity 1W/1 m104 dB SPL
Maximum Peak SPL at 1 m145 dB
Recommended AmplifierDX-100-230
Recommended ProcessorDSP-4080
Audio Input Connector2 x speakON NL4
Audio Output Connector2 x speakON NL4
Enclosure ConstructionBirch Plywood
Enclosure GeometryRectangular
RiggingM10 Rigging Points
FinishISO-flex Paint
Dimensions ( H x W x D )615 x 1.195 x 1.100 mm
24,2 x 47,0 x 43,3 in
Net Weight130,0 kg ( 286,0 lb )
LF Driver21UXN4
Carton Dimensions ( H x W x D )1.060 x 560 x 1.055 mm
41,7 x 22,0 x 41,5 in
Shipping Weight171,0 kg ( 377,0 lb )
Data Sheet
HT_UX221_01.pdfPDF393 Kb
User Manual
UM_UX2_01_EN.pdfPDF15.95 Mb
Modeling Data
MD_UX_EF3_GLL.zipZIP463 Kb
Line Drawing
LD_2D_UX221.dwgDWG552 Kb
LD_2D_UX221.svgSVG208 Kb
CAT_DAS_2019_FULL_LINE_01.pdfPDF26.9 Mb
ANL-2Set of 4 M10x40 forged steel eyebolts+4 carabiners, for flying
FUN-2-UX221Protective transport cover for 2 u. UX-221/UX-221A on PL-221S, black
PL-221SSteel transport dolly for UX-221/UX-221A (max 3 u.), black
SPK4-11m speaker cable, 4x(2.5mm2), 2x NL4
SPK4-1010m speaker cable, 4x(2.5mm2), 2x NL4
SPK4-2020m speaker cable, 4x(2.5mm2), 2x NL4
21UXN4Sub-low frequency 21″ speaker, 6″ VCD, neodymium magnet, 2000 W AES, 4 ohm
GM-21UXN4Recone kit for 21UXN4 speaker