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VHD2.0

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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.

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VHD1.21 Technical Data Sheet

VHD1.21Overview

VHD1.21
Product video
Overview
Specifications
Downloads
Accessories
Configurations

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

AP4 male

Speaker Output

AP4 female

Cabinet

Cabinet Material	Baltic birch
Handles	6
Color	"Orange peeled" Matt Black or any RAL

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

User Manuals (2)
Drawings (4)
Brochures (1)

PDF

Cable LF100
Cable LF15
Cable LF200
Cable LF40
VHD1.21 Cart
VHD1.21 Cover

Description

- Front mount aluminium VHD2.21 cart - with hardwood bumpers

Downloads

DWG

VHD1.21 Cart 3D DWG

SKP

VHD1.21 Cart SKP

VHD1.21 Cart SketchUp

VHD1.21 Cover

Gallery

Product code

KVV 987 107

Description

- used with cart

VHD-Double C
VHD-Single C
VHD-Single F

Choose

VHD-Double C

Description

Up to 10000 people Number of bass boxes - depend on music style Right side of stereo double system

Products

Count	Product	Type
2	VHD2.0	MID-HI
4	VHD2.16	SUB
4	VHD1.21	SUB
2	VHD2000	MID-HI AMP
2	VHD3200	SUB AMP

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