JBL Comprehensive Guide to the VRX 900 Subwoofer Specifications and Features

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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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Contents E r ’ s G u i d e Contents Dimensional Drawings for VRX932LA Introduction to the VRX932LAVRX932LA 12, Two-Way, Line-array Loudspeaker System SpecificationsFunctional Block Diagram Dimensional Drawings for VRX928LA Introduction to the VRX928LAVRX928LA 8, Two-way, Llne-array Speaker Dimensional Drawings for VRX918S Introduction to the VRX918SVRX918S 18 Subwoofer Dimensional Drawings for VRX915S Introduction to the VRX915SVRX915S 15, Bass-reflex Subwoofer Dimensional Drawing for VRX915M Introduction to the VRX915MVRX900 VRX915M 15 Two-Way Stage MonitorWorking Load Limit Dimensional Drawings for VRX-AFIntroduction to the VRX-AF Dimensional Drawings for VRX-SMAF Introduction to the VRX-SMAFArray Configuration Selector ACS Amplitude ShadingAmplitude Shading Frequency ResponseBi-Amplified System Deploying the System Single VRX932LA/VRX928LADual VRX932LA/VRX928LA Locking 2 VRX932LA/VRX928LA Loudspeakers TogetherSuspension Safety Warnings Inspection & MaintenanceAre You New to Rigging? Attachment to StructuresInstalling the Array Frame Maximum Array SizeGround-Stacked, Upward Firing Arrays Suspension in Permanent InstallationsEyebolt Suspension System Processor Tunings JBL Warranty and Contacts JBL Professional