QSC PL-SUB18

The QSC PL-SUB18 is a passive installation subwoofer with an 18-inch low-frequency driver in a bass-reflex, weatherized (IP54) wooden enclosure, sized for applications from entertainment and small sporting venues to corporate auditoriums and lecture halls.

Omnidirectional or cardioid radiation is selectable in Q-SYS (cardioid requires at least two subwoofers deployed), and the enclosure is flyable alongside the PL-LA12 line array using the PL-LA12-AF array frame (sold separately) — up to 10 PL-SUB18 units alone, or 3 PL-SUB18 plus 10 PL-LA12 together. QSC recommends the CX-Q 8K4 amplifier, one subwoofer per channel.

Specifications

Technical Overview

LF Driver: 18 in (460mm), 4 in (101.6mm) voice coil
Enclosure Configuration: Passive, bass-reflex
Coverage: Omnidirectional or cardioid, switchable in Q-SYS (cardioid needs 2+ subs)
Bandwidth (-10dB, with EQ): 32 Hz – 101 Hz
Sensitivity: 97 dB SPL (1W @ 1m)
Max SPL (continuous / peak): 126 dB / 138 dB
Rated Power: 77 Vrms — 750 W continuous / 1500 W program at 8Ω
Impedance (nominal / minimum): 8 Ω / 6 Ω
Enclosure Material: Weather-treated plywood, black (RAL 9011)
Grille: 1.5mm (16Ga) stainless steel, hydrophobic fine mesh, UV/corrosion-treated
Connectors: 2x SpeakON NL4 (to 10 AWG), 1x 4-pole lockable Euroblock wired in parallel (to 8 AWG), IP65 connector cover
Weatherproofing: IP54; stainless screws; polyurethane paint; IP65 connector cover
Dimensions (net, H x W x D): 532 x 620 x 741 mm (20.9 x 24.4 x 29.2 in)
Weight (net / shipping): 46.3 kg (102.2 lb) / 52 kg (114.5 lb)
Flying Accessory (sold separately): PL-LA12-AF array frame
Deployment: Up to 10x PL-SUB18 alone, or 3x PL-SUB18 + 10x PL-LA12 with array frame
Recommended Amplifier: QSC CX-Q 8K4 (1 subwoofer per channel)

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