VHD4.21 Active Passive Bass Module
What is Power without Control. In developing one of the most powerful subwoofer solutions in the world today, our already successful VHD2.21 2x21" subwoofer has evolved to incorporate a revolutionary new Subwoofer Amplifier design, unique to KV2 and featuring Ultra High Current delivery, Immense Power, Exceptional Control, coupled with a class leading 'Green Efficiency' low consumption power supply. Housing two newly developed large format 21" Woofers the VHD4.21 Active can power an additional Passive VHD4.21 and deliver up to 14,000 Watts of peak power whilst being plugged in to a standard 16A wall socket. The VHD 4.21 is a truly Amazing product and demonstrates the Pinnacle of KV2's Pioneering Subwoofer technologies.
System Acoustic Performance
| Max SPL Long-term |
147dB |
| Max SPL Peak |
150dB |
| -3dB Response |
34Hz - 180Hz |
| -10dB Response |
28Hz - 240Hz |
| Crossover Point |
60Hz to 120Hz |
Low Frequency Section
| Acoustic Design |
Bandpass with low port losses |
| Woofer Size / Voice Coil Diameter / Design |
4x 21" / 5.3" |
| Diaphragm Material |
Epoxy Reinforced Cellulose with Carbon Fiber and Double Surround |
| Magnet Type |
Neodymium Advanced Ventilated |
Low Frequency Amplifier Specification
| Type |
Direct power switching amplifier |
| Rated Continuous Power |
3500W |
| Short Term Power |
14000W |
| Distortion |
<0.05% |
Signal Input
| Input Sensitivity |
1.55V RMS |
| Input Impedance |
20 kΩ |
Power Requirements
| Power Connector |
Neutrik PowerCon® 32A |
| Operating Voltage |
180V - 260V @ 50Hz | 60Hz |
| Recommended Amperage |
16A |
Cabinet
| Cabinet Material |
Baltic Birch |
| Handles |
12 |
| Color |
Black or any RAL |
Physical Dimensions
| Height |
700mm (27.55") |
| Width |
1080mm (42.52") |
| Depth |
1200mm (47.24") |
| Weight (Active) |
175kg (386lbs) |
| Weight (Passive) |
155kg (342lbs) |
