VH Sub121H aspects

VH Subwoofer Series VH Sub118R VH Sub218R VH Infra218R VH Sub218H VH Sub121H 
VH Sub121H is a special Sub-Bass unit expressly designed and engineered for lower frequencies response at the maximum SPL output.
The hybrid system configuration (Bass-reflex & Horn Loading techniques) houses a single 21in. transducer of a 4.5in. voice coil woofer, tuned in a Bass-reflex enclosure to extend the LF output to below the natural horn cut-off point.
This particular compound system combines the high efficiency and great impact of the horn loading technique with the low frequency extension of the Bass-reflex enclosure.
Two extra-large ports allow to further extend the system frequency response down to 35 Hz.
The benefits of this ideal combination ensure a superior sound impact along the most accurate lower reproduction.
Bass-punch is unrivaled and the incredible high SPL output makes the system extremely effective when providing sound to spacious outdoor environments. Longer distances are reached with ease!
Specially designed for large scale open air venues, smaller compared to VH Sub218H, 121H can also be used in indoor environments of large dimensions.
The use is strongly recommended whenever a great impact, accuracy and transients fast response become mandatory.
Significant construction criteria, combined with the latest technologies and the innovative materials, ensure a great reliability over time.
VH Sub121H cabinet is constructed from Birch-ply and has an impact and weather protected PCP (Polyurea Cabinet Protection) finish.
It can be as well matched with all the most challenging Loud Professional Full-Range and Line-Array systems, significantly boosting their LF extension.

Applications: Large Open Air Venues, Arenas, Stadiums, Theaters, Conference Halls, Concert Halls and Large Scale Discos.

Technical Specifications 
Frequency Range (+/-3 dB)    35 Hz - 150 Hz
Nominal Directivity (-6 dB)    Omnidirectional
Maximum Peak SPL LF    145 dB
 Components LF    1 x 21in. Ferrite cone driver
 Nominal Impedance LF    8 Ω
 Power Handling (AES / Peak) LF    2.000 / 8.000 W 
 Connection    2 x SpeakON™ NL4
Enclosure Construction    18 / 24 mm Ply Birch 
Finish    Black PCP (Polyurea Cabinet Protection) finish
Protection Grille    Powder coated 2mm Rigid Metal Grille
     Acoustically transparent Foam for discrete appearance
 Height Front (mm / in.)    1215 / 47.83
 Height Back (mm / in.)    1215 / 47.83
 Width Front (mm / in.)    685 / 26.96
 Width Back (mm / in.)    685 / 26.96
 Depth (mm / in.)    900 / 35.43
 Weight (kg / lbs)    118 / 260
Supported processing   Armonia Pro Audio Suite