Celto Acoustique SU221 Touring Dual 21" Subwoofer

Description

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

TECHNICAL SPECIFICATIONS

Speaker typeVented Subwoofer
Power Handling (AES standard)3600 W RMS / 14400 W peak
Nominal impedance4 Ω
Average sensitivity102 dB / 1 W / 1 m
Maximum SPL (calculated)137 dB RMS / 143 dB Peak
Frequency response (-6 dB no preset)28~1500 Hz
Nominal directivity (-6 dB)Omni in usable range
CabinetMarine grade Baltic Birch Plywood
Heavily braced with Tongue & Groove
Cabinet finishTouring Grade Rubberized PolyUrea Black coating
Acoustic PU foam behind Front grill
Flying hardwareNo
Mounting hardware2pcs M20 thread socket
LF2x 21" CELTO 21SW2000-8
Woofer ChassisDie Cast Aluminium
Woofer Voice coil4.5" / 115 mm long throw
CrossoverNo, active mode only
ConnectivityGenuine NEUTRIK 
2pcs Speakon NL4MP
Speaker size (HxWxD)588 x 1226 x 805 mm
Speaker Weight104 kg