The Studiomaster Vortex 18SA is a compact yet powerful 18″ active subwoofer designed to deliver exceptional low-frequency performance in live sound and portable PA systems. Built from durable 15mm plywood and finished with a rugged paint coating, this sub features a 2400W peak amplifier and an 18″ driver with a 75mm voice coil. Its easy-access DSP allows quick setup and control of low cut, delay, and volume. With large carry handles and a 35mm top hat mount, the Vortex 18SA is ideal for professional mobile setups requiring efficient bass reinforcement.
Features
2400W peak power handling
High-output 18" subwoofer with 75mm voice coil
Durable 15mm plywood cabinet with full-face steel grille
Integrated DSP with low cut, delay, and volume settings
Dual balanced XLR inputs and outputs
Large carry handles for easy transport
35mm top hat mount for pole-mounted setups
Specifications
MAX SPL: 134dB
AMP PEAK: 2400W
AMP PGM: 1200W
AMP RMS: 600W
Cabinet type: 18" active subwoofer
Frequency response: 45Hz – 100kHz
Input sensitivity: 0dBu
LF Driver: 18" / 75mm voice coil
Crossover frequency: 120Hz
DSP: 24-bit (low cut / delay / volume)
Connections: 2 x balanced XLR input, 2 x balanced XLR output
Dimensions (W × H × D): 530 × 682 × 610mm
Net Weight: 35kg
