VHD4.18 - VHD Subwoofer Enclosure
The VHD4.18 is a quad 18" subwoofer system, comprising of four individual loudspeaker cabinets. The objective is to make the system easy to transport and setup. When assembled, the VHD4.18 system becomes a high efficiency neodymium subwoofer system with immense output. The system was designed with very high sensitivity in mind; it provides 110 dB at 1W/1m and a tremendous output of 149dB when running at full power Each cabinet incorporates a large port area that becomes an optimized horn aperture when all four cabinets are stacked together. The quad 18" subwoofer system delivers extreme output and controlled low frequency resolution.
System Acoustic Performance
| Max SPL Long-term |
146dB (4x VHD4.18) |
| Max SPL Peak |
149dB (4x VHD4.18) |
| -3dB Response |
36Hz to 100Hz |
| -10dB Response |
31Hz to 100Hz |
| Impedance |
8Ω |
| Crossover Point |
100Hz |
Low Frequency Section
| Acoustic Design |
Horn reflex loaded |
| Low Frequency Amplifier Requirement |
800W /1x VHD4.18 (VHD3200 amp.) |
| Woofer Size / Voice Coil Diameter / Design |
18" / 4" / Inside Outside |
| Magnet Type |
Neodymium |
| Diaphragm Material |
Epoxy Reinforced Cellulose |
Speaker Input
Speaker Output
| Speaker Output |
AP4 female |
Cabinet
| Cabinet Material |
Baltic birch |
| Handles |
6 |
| Color |
"Orange peeled" Matt Black or any RAL |
Physical Dimensions
| Height |
600 mm (23.62") |
| Width |
700 mm (27.55") |
| Depth |
750 mm (29.52") |
| Weight |
52 kg (114.4lbs) |
