The S21 Ipal subwoofer is powered by a 4000 RMS (6000W Peak) built-in amplifier with proprietary noise reduction as well as an innovative DSP software code that ensures both longevity and sound accuracy.
The MDF enclosure is well braced with a double thickness woofer baffle. The enclosure is finished with a non-reflective matte covering. An acoustically transparent fabric grille covers the front-firing 21 inch subwoofer driver. The amplifier is mounted on the rear baffle.
The 21" IPAL woofer is world renown as the very best money can buy, period. With incredible thermal handing, motor strength, and inductance considerations you are assured of powerful and accurate bass reproduction.
Amplifier Power: 3800W RMS 6100W Peak
Amplifier Topology: Innovative post-filter feedback class-D topology, achieves ruler-flat frequency response, low distortion and very high damping across the whole audio band
Uses latest generation power MOSFET transistors and highly optimized output stage for up to 95% efficiency, allowing quiet fan-less operation up to unprecedented power levels
Full featured protection: DC, overload, low impedances, shorts, under/over-voltage, overheating, etc.
Includes gentle soft-start and long-term power limiter to reduce the chances of tripping breakers
120VAC (optional 120VAC-240VAC for an additional charge)
Unbalanced Inputs: Left and Right RCA
Balanced Input/Output: XLR input and XLR loop output.
On, Auto, Off selector
Time delay(phase) control
Room size control
Custom DSP(digital signal processing) enables superior engineering refinement
LED indicators for standby and power mode
Acoustically transparent grille
Durable, non-reflective black matte finish
Precision machined CNC panels
Rigid MDF baffles
Rear mounted amplifier
Dimensions (DxWxH): 24.5"x23.75"x23.75"
Weight: 157 lbs
21 inch B&C Ipal woofer design from Italy
6 inch split wound aluminum voice coil
5000 watt thermal capabilities
99 dB sensitivity
Motor force of 522(BL^2 / re)
Extensive inductance control to optimize sound quality