Product Features
■ 2x 18-inch high-power low-frequency drivers
■ 220mm diameter magnetic coil, 100mm heat-dissipating voice coil
■ Protected by proven durable Raindrop paint finish
■ CNC manufactured rectangular housing with tongue and groove joints
■ Waterproof and dustproof acoustically transparent fabric lining inside grille
Product Overview
The ST218 extended low-frequency subwoofer is designed and manufactured to deliver accurate and powerful bass frequencies. It is a direct-radiating subwoofer with a large balanced outlet that provides optimal cabinet tuning and uniform air pressure distribution of the driver cone, thereby reducing distortion and extending system life . The ST218 is used as a single subwoofer in a subwoofer/satellite system or as multiple subwoofers as part of an expandable large-scale sound reinforcement system with excellent efficiency and control. The subwoofer is stackable. This is the most powerful low-frequency supplement to the CAT KING full-range series speakers. The low-frequency driver is two 18-inch woofers with 4″ (99.6mm) heat-dissipating voice coils and 220mm magnets. Its design is the result of the latest improvements in compact subwoofers, which can reproduce the bass frequency range quickly and controlled.
Applications
Due to their rugged construction, they are ideal for bars, concert halls, nightclubs, road shows and AV rentals
It is recommended to use with XCA series audio processor to obtain the best product performance.
It is recommended to use the MT1400 power amplifier to achieve a more perfect sound field effect.
Technical specifications
Model Name | ST218 |
product design | Dual 18-inch subwoofers |
product type | 18-inch passive subwoofer |
Rated impedance | 4 ohms |
Power handling capability: | |
Rated power AES (W) | 1400 W |
Long-term maximum signal power MUSIC (W) | 2800 W |
Short-term peak power PEAK 10ms (W) | 5600 W |
Sensitivity | 95dB SPL 1W@1m |
Frequency response (+-3dB) | 45 Hz – 180 Hz |
Frequency response (+-10dB) | 42 Hz – 220 Hz |
Sound pressure level (1M) continuous/maximum dB | 126dB/132dB (calculated) |
Driver part | |
LF low frequency driver: | LF18220F-100S |
LF Size | 450 mm (18 inches) |
LF voice coil size | 99.6 mm (4 inches) |
LF magnet structure | 220mm Ferrite Coil |
LF Frame Material | Aluminum cone |
Shell and accessories | |
Input Connectors | 2 x XLR sockets (1+ / 1-) with junction box |
Rigging and Hardware | none |
handle | 2 on the side, 4 in total |
Box shape | Rectangular CNC-made wooden wedge structure assembly |
Housing Material | 18mm multi-layer birch plywood |
Shell coating and color | Durable black raindrop paint finish |
Grille Materials and Treatments | Black perforated mesh Moisture-resistant and waterproof acoustic mesh backing |
Move and protect | 4 rubber feet on the bottom |
Product Dimensions – Unpackaged: | |
Front height | 645 mm (25.39 in) |
Rear height | 645 mm (25.39 in) |
Front width | 1043 mm (41.06 in) |
Rear width | 1043 mm (41.06 in) |
depth | 770 mm (30.31 in) |
Product Dimensions – Packaging: | |
high | 1100 mm (43.31 in) |
Front width | 700 mm (27.56 in) |
Rear width | 700 mm (27.56 in) |
depth | 825 mm (32.48 in) |
weight: | |
net weight | 80 kg (176 lbs) |
gross weight | 85 kg (187 lbs) |