Audibax DSP18S - 18" 600W RMS Active Subwoofer with DSP, Presets and XLR/Jack Inputs
The Audibax DSP18S is a professional 18" active subwoofer designed for bass reinforcement in events, rentals, and permanent installations . It features a 600W RMS Class D amplifier with internal DSP to adjust the system's response according to the application (Music, Live, DJ, Speech/Voice), as well as three-band equalization , 0°/180° phase selection, and a Full Range/HPF switch on the signal send. Its 18" transducer with an 80 oz magnet and 75 mm voice coil offers a wide operating frequency range of 26–800 Hz , with SPL levels of 126 dB (continuous) and 132 dB (peak) , perfect for pairing with full-range speakers in 2.1/2.2 systems.
The enclosure is constructed from 18mm MDF with a black acrylic lacquer finish , making it robust enough for everyday use. The rear panel features two balanced XLR/6.35mm combo inputs and two balanced XLR outputs for daisy-chaining equipment or powering satellite speakers. It operates on universal AC 110–240V 50/60Hz power and comes with a power cable. It boasts compact dimensions for its class ( 530 × 650 × 650 mm ) and weighs 42 kg .
Main features
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Transducer: 18" woofer (75 mm voice coil, 80 oz magnet).
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Amplification: Class D 600 W RMS with integrated DSP .
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Frequency range: 26–800 Hz .
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SPL level: 126 dB continuous / 132 dB peak.
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Inputs: 2 × balanced XLR/Jack 6.35 mm combo.
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Outputs: 2 × balanced XLR (signal pass/link).
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Processing: Music, Club, Live and Voice presets; 3-band EQ ; 0°/180° phase ; Full Range / HPF switch.
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Construction: 18 mm MDF enclosure, finished in black acrylic lacquer (IP20).
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Power supply: AC 110–240 V, 50/60 Hz.
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Dimensions and weight: 530 × 650 × 650 mm; 42 kg .
Product benefits
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Powerful and controlled bass: the 18" driver and internal DSP maintain punch and clarity throughout the usable range.
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Quick setup for any event: dedicated presets and 3-band EQ to adapt the system in seconds.
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Simple integration: dual combo input and XLR outputs to link with active tops or send signal to stages/satellites.
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Efficiency and reliability: Class D stage with thermal protection and management, optimal for intensive use in rental.
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Professional construction: 18mm MDF and durable finish for daily moving and assembly.
Use cases
- Systems 2.1 / 2.2 in mobile DJ, corporate events and weddings .
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Rooms and pubs that require solid bass reinforcement without losing control.
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Theatre and live performances where extension down to ~26 Hz with good pressure is required.
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Fixed installation in gyms, small auditoriums and clubs.
Rear panel and functions
- Indicators: Power , Signal , and Limit .
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Master volume control .
- Inputs: Left and right balanced XLR/6.35 mm jack .
- Outputs: balanced XLR left and right .
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Full Range / HPF switchable.
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DSP Presets : Music, Club, Live, Voice; selectable phase 0°/180° .
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Power switch and voltage selector (AC 110–240 V).
Frequently Asked Questions
What's the difference between this and the DSP18S G2? The G2 version, as documented by some distributors, increases the RMS power to 800W and sets the peak level at around 131dB . This datasheet corresponds to the DSP18S (600W RMS) . Verify the version before combining it with other components.
Can I use it with active speakers? Yes. Use the XLR outputs to send the signal to your active tops and adjust the Full Range/HPF mode according to the routing.
Do I need an external crossover? It's not essential: the internal DSP includes filters and presets. In advanced systems, an external processor can provide fine-tuning.
Is it for indoor use? Yes, IP20 rated. For outdoor use, it protects the equipment from moisture and dust.
Project description
18" active subwoofer, 600W RMS Class D amplifier with DSP; frequency range 26–800 Hz; SPL: 126 dB (continuous) / 132 dB (peak); inputs 2 × balanced XLR/6.35 mm combo jack; outputs 2 × balanced XLR; DSP presets (Music, Club, Live, Voice), 3-band EQ, phase 0°/180°, Full Range/HPF switch; 18 mm MDF enclosure with black acrylic finish; AC power supply 110–240 V 50/60 Hz; dimensions 530 × 650 × 650 mm; weight 42 kg; for indoor use (IP20).
