CLS-121SP

Subwoofer unit in direct radiation configuration

Compact & extremely powerful subwoofer unit in direct radiation configuration. 21” (4” voice coil) neodymium transducer.

Description

The CLS-121SP is a high-output, extremely powerful sub-bass element designed to be used in unison with the coaxial CLS-212P line array module.

It uses one low distortion 21” (4” QUATTRO in/out copper voice coil) custom speaker with double silicon spider with optimized compliance, exclusive Malt Cross Technology cooling system for reduced power compression and aluminium demodulating ring for very low distortion.

Designed to be used either as a standard sub bass unit or easily configurable in cardioid configuration thanks to integrated front & rear power connectors enable a discreet installation without any cables visible at the front of the cluster. The extra strong, especially designed internal wooden reinforcements reduce unwanted vibrations eliminating any noise, lowering distortion and delivering a clear sound. At the same time, the bass port is designed with a flare to eliminate any turbulence caused by sharp edges in the sound waves path.

Depending on the configuration, the system is amplified with the GTX Series4-channel, extremely high power level amplifiers with outstanding, high efficiency. They come equipped with a quality FIR-DSP with high performance 96kHz DSP processing and a large IPS display with a touch panel user interface.

Advanced Audio Power Control Management has been implemented in the design of the GTX series. This enables the user to configure the division of power between the channels via the DSP enabling them to obtain maximum power through just one single channel if desired. Optional Networking AES67 and AES3 Digital inputs are also available.

The enclosure is made from premium grade birch plywood and finished with a polyurea coating for longer durability & weather protection. It also has a number of dedicated accessories available.

Key features

Extraordinary high power output

Front & rear audio and power connectors for cardioid applications

Ergonomic design in premium birch plywood & finished in polyurea

Stackable and flyable standard and/or cardioid configuration

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Perfectly suited for:

→  Touring and fixed installations
→  Sports stadiums
→  Houses of worship
→  Club installations
→  Concert halls and auditoriums
→  Low frequency complement for CLS-212P

Technical Data

 

Components
LF:  21” Neodymiun magnet transducer. 4” quattro in/out copper voice coil, Waterproof cone treated on both sides. Malt Cross Technology cooling system. Aluminium demodulating ring for very low distortion. 1600 W (AES)
Frequency Range30 Hz – 90 Hz (preset 90 Hz)
Coverage
Quasi omnidirectional
Max SPL/Peak131 dB / 137 dB
Sensitivity 1w/1m half space
99 dB
ConfigurationBass-reflex direct radiation enclosure
Impedance:
Ω
FinishPolyurea coating, high grade resistant paint
Material
15 mm / 18 mm premium birch plywood
Dimensions608 x 800 x 778 mm (H x W x D) / with pins 814.5 mm (W)
Weight
64 Kg (141 lbs)

Calculated maximum SPL based on rated peak power and measured sensitivity.

More features

Hardware for CLS-121SP
Enclousure-v12
Enclosure

The CLS-121S cabinet is constructed from 11-ply and 13-ply premium birch plywood (15mm & 18mm thickness). The enclosure is finished with polyurea coating.

Enclousure-f6
Internal design

The internal structure of the CLS-121S is heavily braced for greater longevity and all parts are assembled on metal inserts with metric screws. The amplification modules & DSP are housed in a separate chamber to the drivers avoiding excessive heat & vibration, thus delivering greater efficiency and reliability.

Rear panel

The powder coated steel front panel contains connections to power and signal for cardioid operation. It is located in the grill.

Grill

The CLS-121S has three heavy duty, powder coated front grille with a special acoustic rear fabric to protect the transducers against dust and dirt.

Handles

The CLS-121S has four ergonomic handles with firm internal grip, two on each side of the enclosure, to facilitate transport, positioning and loading of the cabinets.

Rigging

The 4 point rigging system with 4 retractile levers which enable 10 CLS-121S cabinets to be flown in a single array or together with the CLS-212. Fixed 0º angle.

Can be directly linked together with 6 CLS-212 through the connection system SC-CLS212/121S or more cabinets (up to 1000 kg) with the SV-CLS20 flying frame.

Transport

The CLS-121S has two transport options: a front squid cover with wheels (100mm) and a wood transport dolly.

Accessories for CLS-121SP

SV-CLS20

Flying frame for 16 CLS-212 or CLS-121S.
Max. 1000 Kg

SC-CLS212/121S
Connection system for CLS-28 together with CLS-118S

ST-SVCLS/M20

Kit to connect SV-CLS10 or SV-CLS20 flying frame and M20 plate

ST-CLSKIT
4 x ground stack stabilisers for SV-CLS10

CA-CLS121S

Removable front transport dolly

 

CA-CLS121S/2

Dolly for 2 CLS-121S

FD-4LXV8

FD-CLS121S

Nylon protection cover for CLS-121S with a CA-CLS121S

FD-2CLS121S

Nylon protection cover for 2 CLS-121S with a CA-CLS121S/2

Rain-CoverFD-CLSSUBNL
Rain cover for CLS-118S / CLS-121S / CLS-218S
FC-GXR15X2FC-SVCLS10
Flight case to transport 2 SV-CLS10, cables and accessories
BALL-PSRBALL-PSR0820
Ball pin with thread for CLS-212 cabinet and CLS-121S

Other products from this series

2 x 8″, 1 x 8″ dual diaphragm coaxial planar wave driver

2 x 12″, 2 x 6.5″ dual diaphragm coaxial planar wave driver

1 x 18″,  subwoofer in direct radiation configuration 

2 x 18″,  subwoofer in direct radiation configuration