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 Series, 4-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 |
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 Range | 30 Hz – 90 Hz (preset 90 Hz) |
Coverage | Quasi omnidirectional |
| Max SPL/Peak | 131 dB / 137 dB |
Sensitivity 1w/1m half space | 99 dB |
| Configuration | Bass-reflex direct radiation enclosure |
Impedance: | 8 Ω |
| Finish | Polyurea coating, high grade resistant paint |
Material | 15 mm / 18 mm premium birch plywood |
| Dimensions | 608 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
 | EnclosureThe CLS-121S cabinet is constructed from 11-ply and 13-ply premium birch plywood (15mm & 18mm thickness). The enclosure is finished with polyurea coating. |
 | Internal designThe 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 panelThe powder coated steel front panel contains connections to power and signal for cardioid operation. It is located in the grill. |
 | GrillThe CLS-121S has three heavy duty, powder coated front grille with a special acoustic rear fabric to protect the transducers against dust and dirt. |
 | HandlesThe 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. |
 | RiggingThe 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. |
 | TransportThe 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. |
 | 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-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 |
 | FD-CLSSUBNL Rain cover for CLS-118S / CLS-121S / CLS-218S |
 | FC-SVCLS10 Flight case to transport 2 SV-CLS10, cables and accessories |
 | BALL-PSR0820 Ball pin with thread for CLS-212 cabinet and CLS-121S |
Downloads
