Description
QUEST HPI18BP Single 18" Subwoofer — 2000 W
Compact brute-force bass for medium–large venues. The Quest Engineering HPI18BP delivers extended-range, high-SPL low end from a rugged two-chamber bandpass design—perfect for live sound, EDM, and installs. Available from Concert AV Melbourne with fast Australia-wide shipping.
Key Features
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High output, extended bass for modern music and live reinforcement
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Compact enclosure for easier truck-pack and install flexibility
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Robust build, engineered for long-duration high SPL
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Advanced acoustic design: two-chamber bandpass for efficiency and control
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Designed & built in Australia
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Versatile deployment: 35–37 mm speaker pole cup for top boxes
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Suited to: live gigs, clubs, theatres, houses of worship, permanent installs
Technical Specifications
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Design / Model: Two-chamber bandpass
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Driver: Single high-stability 18″
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Frequency Response: 30 Hz – 150 Hz (±4.5 dB)
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Sensitivity: 103 dB @ 1 W/1 m
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Max Average (Calculated) SPL: 136 dB
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Power Handling: 2000 W (system headline rating)
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Fittings: 1 × speaker pole cup 35–37 mm
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Dimensions (mm): W 750 × D 825 × H 595
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Weight: 60 kg
Use Cases & Tips
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Pair with Quest HPI or similar 12″/15″ tops via the pole cup for clean, punchy full-range rigs
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For installs, cluster subs near stage center for more uniform LF coverage
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Use a 30–100 Hz low-pass starting point and adjust to taste; apply limiter protection for sustained EDM sets