KV2 Audio » Products » VHD » VHD1.21
VHD1.21 - Ultra Low Frequency Enclosure
Single 21", Low Q band-pass subwoofer system that adds extension and weight for applications where you want to feel, as well as hear, very high definition audio Working down to 23Hz with an efficiency for two boxes of 102dB, it shares the same footprint as the other VHD subwoofers in a compact lightweight easily transported package. Alongside the VHD2.16, it forms part of a remarkable five way active system.
Watch the product video
Applications
Specifically designed to add extreme low frequency extension to the VHD2.0 and VHD1.0 in conjunction with other VHD subwoofers
- Live performance
- Fixed installation
- Cinema
- Theatre
Product code
- KVV 987 080 - VHD1.21
Features
- Professional, Baltic birch construction with highly resistant polymer coating
- Very High Definition ultra low frequency reproduction
- 135dB sustained output / 137dB peak (using 2 units of VHD1.21)
- Large-chamber bass reflex low Q bandpass design
- Single 21" low frequency driver with 4" (100 mm) inside/outside, epoxy baked, high temperature voice coil assembly and carbon fibre reinforced cone assembly
- Proprietary side handles (6) for simplified handling and carrying
- High impact low friction feet, allowing lock- in to other VHD cabinets and easy cabinet movement
- Front locking aluminium VHD wheel boards with wraparound hardwood bumpers
- Weather proofing option and special paint finishes available on request
Applications
Specifically designed to add extreme low frequency extension to the VHD2.0 and VHD1.0 in conjunction with other VHD subwoofers
- Live performance
- Fixed installation
- Cinema
- Theatre
Product code
- KVV 987 080 - VHD1.21
System Acoustic Performance
| Max SPL Long-term | 135dB (2x VHD1.21) |
| Max SPL Peak | 138dB (2x VHD1.21) |
| -3dB Response | 29Hz to 60Hz |
| -10dB Response | 23Hz to 60Hz |
| Impedance | 8Ω |
| Crossover Point | 60Hz to 70Hz |
Low Frequency Section
| Acoustic Design | Large chamber low Q band pass |
| Low Frequency Amplifier Requirement | 800W /1x VHD1.21 (VHD 3200 amp.) |
| Woofer Size / Voice Coil Diameter / Design | 21" / 4" Inside Outside |
| Diaphragm Material | Epoxy Reinforced Cellulose |
| Magnet Type | Neodymium |
Speaker Input
| Speaker Input | AP4 male |
Speaker Output
| Speaker Output | AP4 female |
Cabinet
| Cabinet Material | Baltic birch |
| Handles | 6 |
| Color | Black (wear resistant polymer coating) |
Physical Dimensions
| Height | 700 mm (27.55") |
| Width | 700 mm (27.55") |
| Depth | 750 mm (29.52") |
| Weight | 60 kg (132.0lbs) |
Product code
- KVV 987 080 - VHD1.21
VHD Subwoofers User Guide
VHD Series Subwoofers User Guide - VHD2.16, VHD2.18J, VHD4.18, VHD1.21, VHD2.21, English
Cable LF100
Cable LF15
Cable LF200
Cable LF40
VHD1.21 Cart
VHD1.21 CoverCable LF100 for bass speaker
Gallery
Product code
KVV 987 123
Description
- 4 wire speaker cable - AP4 connectors - 10m (33ft) - for ES Bass Module hook-up
Cable LF15
Gallery
Product code
KVV 987 121
Description
- 4 wire speaker cable - AP4 connectors - 1,5m (5ft) - for ES Bass Module daisy-chaining
Cable LF200 for bass speaker
Gallery
Product code
KVV 987 124
Description
- 4 wire speaker cable - AP4 connectors - 20m (66ft) - for ES Bass Module hook-up
Cable LF40
Gallery
Product code
KVV 987 122
Description
- 4 wire speaker cable - AP4 connectors - 4m (13ft) - for ES Bass Module hook-up
VHD1.21 Cart
Gallery
Product code
KVV 987 109
Description
- Front mount aluminium VHD2.21 cart - with hardwood bumpers
Downloads
VHD1.21 Cover
Gallery
Product code
KVV 987 107
Description
- used with cart
VHD-Double C
VHD-Single C
VHD-Single FVHD-Double C
Description
Up to 10000 people Number of bass boxes - depend on music style Right side of stereo double system
Products
Accessories
| Count | Accessory | Title |
|---|---|---|
| 2 | Cable MH120 | Cable MH120 |
| 4 | Cable LF15 | Cable LF15 |
| 2 | Cable LF40 | Cable LF40 |
| 2 | Cable LF100 | Cable LF100 for bass speaker |
| 1 | VHD2.0 Top arm (pair) | VHD2.0 Top arm (pair) |
| 1 | VHD2.0 Top extension arm (pair) | VHD2.0 Top extension arm (pair) |
| 1 | VHD Bass arm (pair) | VHD Bass arm (pair) |
| 1 | VHD Bass extension arm (pair) | VHD Bass extension arm (pair) |
| 1 | VHD Systems fly bar | VHD Systems fly bar |
Images
Front view
WiringVHD-Single C
Description
Up to 5000 people Number of bass boxes - depend on music style Right side of stereo single system
Products
Accessories
| Count | Accessory | Title |
|---|---|---|
| 1 | Cable MH60 | Mid/Hi speaker cable HM60 |
| 2 | Cable LF15 | Cable LF15 |
| 2 | Cable LF40 | Cable LF40 |
Images
Front view
WiringVHD-Single F
Description
Up to 5000 people, double bass system Number of bass boxes - depend on music style Right side of stereo single system
Products
Accessories
| Count | Accessory | Title |
|---|---|---|
| 1 | Cable MH60 | Mid/Hi speaker cable HM60 |
| 4 | Cable LF15 | Cable LF15 |
| 4 | Cable LF40 | Cable LF40 |
Front view
Wiring
