Audiofocus advertising S21a, active subwoofer
Equipped with one powerful specific 21’’ B&C neodymium driver with 4,5’’ voice coil powered by a built in Powersoft amplifier with DSP on board. The amplifier is able to deliver about 270Vpeak/4ohms which represents a short term headroom of about 6dB spl higher than than any other compact shape sub on the market.
AUDIOFOCUS state-of-the-art T-ligned + reflex design subwoofer delivering exceptional sensitivity reaching 142dB max SPL at 35 Hz and 145dB SPL at 50Hz.
Its compact size and integrated rigging makes it extremely well suited for flown coupled configurations. For easy wiring, the S21 provides additional connectors on the front grill for cardioid and end fire setup.
Perfect companion for ARES12 line array and FR-X series
|Type||Vented T-ligned - Passive/Active|
|Nominal Impedance||Passive: 8Ω|
|Power handling RMS / Peak||Passive: 1500W RMS / 3000W Peak
Active: 3500W RMS / 11550W Peak*
|Frequency range @-3dBspl||Passive: 40 Hz - 500Hz
Active: 30 Hz - 100 Hz (extended preset)
|Sensitivity spl 2πsr||102 dB|
|SPL@ Peak power||Passive: 135,7 dB
Active: 142 dB / 145 dB
|Components||21" LF B&C Custom made, 4,5" Voice coil|
|Line Connectors||Active: Balanced 1 x IN, 1 x OUT Neutrik© XLR|
|Front connection for Cardio||Active: powerCON and XLR IN OUT
Passive: speakON 4 or speakON 8 IN OUT
|HP Connectors||Passive: 2x Neutrik© speakON linked|
|Construction||Birch marine Plywood 15 & 24 mm|
|Finish||High resistant Polyurea coating|
|Dimensions (h x w x d)||590 x 750 x 655 mm
23,22’’ x 29,52’’ x 25,78’’
|Weight||Passive: 58 kg / 128 lb
Active: 60 kg / 132 lb
|Mounting accessoiries||M20 screw & 35 mm compatible flange|
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