JBL SRX818S Spec Sheet 9 2 15

User Manual: JBL JBL SRX818S | 18 Passive Subwoofer System

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SRX818S
18” Passive Subwoofer System

Key Features:
Premium JBL Transducer with extremely high power
handling
Rugged, versatile enclosures
Full Integration into Audio Architect
Maximum SPL Output: 135dB
System Type: Passive 18”, subwoofer
Frequency Range (-10dB): 28Hz - 150Hz
Frequency Response (- 3dB): 45Hz -150Hz
JBL Professional Tunings available for Crown XTI 2,
Crown Itech HD, and dbx DriveRack 360
Accepts JBL WK-45 Caster Kit
M20 Threaded Pole Cup
Indexing feet for stacking and cardioid deployment
Lightweight poplar plywood cabinets made
structurally sound with tongue and groove joints and
protected by JBL’s tour proven DuraFlex™ finish

Specifications:
System:

Applications:
The SRX818S is a passive portable subwoofer in the SRX800
series from JBL Professional. It has been designed to deliver
class leading performance in a variety of applications
including small and medium sized installations and tours.
When used in conjunction with the SRX800 full range
systems and other SRX800 subs, SRX818S in an integral
part of a high performance, fully configurable loudspeaker
system.
With and M20 pole cup and indexed feet, the SRX818S can
be configured for a variety of applications, including being
stacked in a cardioid configuration for large shows on stage.
For incredible extended low frequency response, the
SRX818S uses an 18-inch woofer with JBL’s patented
Differential Drive Technology for reduced weight while
maximizing power amp efficiency. 3” voice coils and dual
ferrite drivers deliver exceptionally low distortion and
extended low frequency response.
The SRX818S is supported with tunings for Crown XTI 2
amplifiers, Crown Itech HD amplifiers, and dbx DriveRack
360 signal processors, all of which can be controlled as part
of a comprehensive system with Harman Audio Architect.
With best in class 18mm wooden enclosures , 14 gauge steel
grilles, and JBL’s Patented DuraFlex finish, SRX800 speakers
are built to last and withstand a lifetime of hard tour use.

System Type:
Maximum SPL Output:

Passive 18”, subwoofer system
135 dB

Frequency Range (-10 dB):

28Hz – 150Hz

Frequency Response (-3 dB):

45Hz – 150Hz

Power:
System Power Rating:

2400W Peak, 1200W Program, 600W Continuous

Nominal Impedance:

8 Ohm

Connectors:
Operational Modes:

NL4 Input, NL4 Loop-thru (+/-1 or +/-2 Selectable)
Passive

Speaker:
LF Driver:
Crossover Frequency:

2279H
80hz

Enclosure:
Material:
Suspension/Mounting:
Handles:

18mm plywood
M20 Threaded Pole Mount
4

Finish:

Obsidian Duraflex™ finish

Grille:

Powder coated, Onsidian, 14-gauge perforated steel with acoustically
transparent black cloth backing

Dimensions (L x W x H):
Weight:

26.89" x 26.92" x 22.62"
(683mm x 684mm x 575mm)
78.0 lbs (35.4 kg)

SRX818S 18” Passive Subwoofer System

Frequency Response (Main Tuning)
115

SPL (dB)

105

95

85

75
20

100

1000

10000

20000

1000

10000

20000

Frequency (Hz)

SRX818S 120Hz
SRX818S 100Hz

SRX818S 80Hz & SRX Top
SRX818S 60Hz

Frequency Response (80Hz)
10

SPL (dB)

0

-10

-20

-30

20

100

SRX818S Cardioid 80 front, all 3 subs
SRX818S Cardioid 80 rear, all 3 subs

Frequency (Hz)

SRX818S 18” Passive Subwoofer System

4.75

R1.07

11.35

24.20

Dimensions:
R.87

23.28

26.92
26.89

25.04°

22.40 22.62
11.18 11.00
15.00

14.30
6.96
9.70
15.43
TYP 3.00

TYP 3.58

2.46

3.14
4.98

JBL Professional
8500 Balboa Boulevard, P.O. Box 2200
Northridge, California 91329 U.S.A.
© Copyright 2015 JBL Professional
www.jblpro.com

8.00

SRX818S
07/15



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