JBL Comprehensive Guide to the VRX 900 Subwoofer Specifications and Features

	SPECIFICATIONS
VRX918S - 18" Subwoofer
System Type:	18" bass-reflex subwoofer
Frequency Range (-10 dB)1:	31 Hz - 220 Hz
Frequency Response (±3 dB)1:	34 Hz - 220 Hz
Input Connection Modes:	Switchable, +1/-1 or +2/-2
Recommended Crossover:	High-pass: Butterworth 18 dB/oct, 31 Hz
Power Rating	Low-pass: Linkwitz-Riley 48 dB/oct, 80 Hz
	800 W / 1600 W / 3200 W
(Continuous2 / Program / Peak):	130 dB SPL peak
Maximum SPL3:	95 dB SPL
Sensitivity (1w @ 1m):	1 x JBL 2268H 457 mm (18 in) Differential Drive woofer
LF Driver:	8 ohms
Nominal Impedance:	Use SRX718S tunings
Active Tunings:	Top mounted M20 threaded socket for optional SS4-BK pole
Mounting4:	Optional VRX-AF line array frame kit or 10mm eyebolt (Part #229-00009-01)
Suspension / Mounting:	Rectangular, 18 mm, 13-ply birch plywood
Enclosure:	Black DuraFlex finish
Finish5:	Powder coated, 16-gauge perforated steel with acoustical transparent charcoal foam backing.
Grille6:	Neutrik® Speakon® NL-4 (x2)
Input Connectors:	508 mm x 597 mm x 749 mm; (20.0 in x 23.5 in x 29.5 in)
Dimensions (H x W x D):	37 kg (81 lb)
Net Weight:	SRX718S-CVR: Pull-over padded cover
Optional Accessories:	SS4-BK: Adjustable, heavy-duty pole,
	M20 thread to 35 mm pole mount

WK-4: Caster kit

VRX-AF Array Frame

Eyebolt Kit (Part #229-00009-01)

1.“Frequency Range” and “Frequency Response” are based on half-space conditions.

2.IEC filtered noise with 6 dB crest factor, 2 hours.

3.Calculated based on power rating and sensitivity.

4.White version does not include pole mount feature.

5.White version uses JBL Pro White Duraflex Finish.

6.White version grille is powdercoated white with acoustically transparent white cloth backing.

Functional Block Diagram

VRX918S

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