Solton SUB 4018 A is an active, self-powered subwoofer with two 18-inch drivers, built for applications that need maximum low-end SPL while keeping tight control over where that energy goes on stage. A built-in Class D amplifier rated at 3200 W RMS paired with a DSP processor delivers strong headroom and precise driver control under full load, and peak power reaching 9600 W handles short transients without losing control.
Onboard Amplification and DSP Instead of an External Processor
The amplifier panel offers mono and stereo operation plus a polarity inversion function, letting engineers dial in phase alignment against the rest of the system without an outboard loudspeaker processor. Built-in crossover points at 80 Hz, 100 Hz, and 120 Hz give ready-made settings matched to different mid-high cabinet types, and a limiter with over-voltage protection safeguards the drivers without relying on external protection circuits.
Cardioid Mode for Bass Dispersion Control
A cardioid mode reduces bass radiation toward the stage and behind the cluster, which directly improves monitor mix clarity and cuts unwanted room excitation at high output levels. Four integrated handles make the 100 kg cabinet easier to move despite its size, and the reinforced enclosure supports safe stacking of multiple subwoofers in larger system configurations without shifting.
KEY FEATURES
- Two 18-inch low-frequency drivers with 5-inch voice coils
- Built-in Class D amplifier rated at 3200 W RMS
- Integrated DSP processor with 80/100/120 Hz crossover presets
- Mono or stereo operation selectable from the amplifier panel
- Polarity inversion function for system phase alignment
- Cardioid mode limiting rear bass dispersion
- Limiter and over-voltage protection
- Four integrated transport handles
TECHNICAL SPECIFICATIONS
- Type: self-powered, dual 18-inch subwoofer
- Frequency range (-10 dB): 30 Hz to 120 Hz
- Frequency response (+/-3 dB): 35 Hz to 120 Hz
- Coverage pattern: omnidirectional (with cardioid option)
- Power handling: 3200 W RMS, 6400 W continuous, 9600 W peak
- LF driver: 2x 18-inch, 5-inch voice coil
- Crossover points: 80 Hz, 100 Hz, 120 Hz, cardioid
- Protection: limiter, over-voltage protection
- Controls: volume, DSP, power switch
- Enclosure: birch plywood, polyurea coating
- Connectors: XLR in/out, power in
- Dimensions (WxHxD): 1200 x 570 x 700 mm
- Weight: 100 kg
