S-21A

Description

The LAX® S-21A single 18” compact sub-woofer enclosure with its high sensitivity OEM B&C transducer, is designed ground up to provide sub frequency extension to modern cinema applications.

 

s-21a

Features

• Single 21" (530 mm) Diameter OEM B&C Transducer
• 6” (153 mm) voice coil
• High sensitivity (99 dB @ 1m/1w)

Specifications

Model S-21A
Article No.

#20023

Class 21” Sub-woofer
Power Rating

2000 W Continuous
4000 W Program
8000 W Peak

Frequency Range 18Hz - 160Hz (-10dB, half space)
20Hz - 160Hz (-6dB, half space)
System Sensitivity 2V at 1 meter, half space 99dB, 40Hz - 100Hz
Maximum Rated SPL 132dB continuous, 138dB peak
Impedance
Transducer Sections
Low Frequency 21" (530 mm) Diameter B&C Transducer
Voice Coil 153 mm (6")
Voice Coil Material Copper
Former Material Glass Fiber
Magnet Material Neodymium
Chassis Type Cast Aluminum
Nominal Impedance

Crossover Mode Bi-amp
Recommended Processing

LF boost Freq. = 25 Hz
0.71 BW or 2.0Q
Gain = +6 dB

Enclosure
Cabinet Construction Rectangular cabinet, 18 mm, 11-ply plywood
Input Connectors Barrier Strip Screw terminals that accept upto #11 AWG or 4 sq.mm stranded wire
Surface Finish SoundFlex® environment friendly coating
Packing Foam with wooden crate carton packing
Dimensions (H x W x D) 765 mm x 1220 mm x 630 mm
Net Weight 68 kg (149.8 lbs)