JBL SRX812 User Manual

S R X 8 12

12” Two-Way Bass Reflex Passive System

Key Features:

Premium JBL Transducers with extremely high

power handling

Rugged, versatile enclosures

Full Integration into Audio Architect

Maximum SPL Output: 135dB

System Type: Passive 12”, two-way, bass-reex

Frequency Range (-10dB): 41Hz - 20kHz

Frequency Response (- 3dB): 57Hz - 20kHz

Coverage Pattern: 90 x 50

JBL Professional Tunings available for Crown XTI 2,

Crown Itech HD, and dbx DriveRack 360

M10 Suspension Points

Dual Angle 36mm pole cup

Feet for monitor angle

Lightweight poplar plywood cabinets made

structurally sound with tongue and groove joints and
protected by JBL’s tour proven DuraFlex™ nish

Specications:

System:

Applications:

e SRX812 is a passive portable PA speaker in the SRX800

series from JBL Professional. It has been designed to deliver
class leading performance in a variety of applications
including use as a main PA, a stag e monitor, and rear and side
lls. When used in conjunction with the other SRX800 full
range systems and the SRX800 subs, SRX812 in an integral
part of a high performance, fully congurable loudspeaker
system.

e SRX812 features premium JBL Transducers. High

frequencies are handled by an annular polymer diaphragm
compression driver that features a best in class 3” voice
coil coupled to a 1.5” throat opening. Using a neodymium
magnet, the compression driver is lightweight, ecient, and
extremely powerful. is delivers very high power levels
with reduced distortion and increased phase coherence
resulting in smooth, crystal clear high frequencies. For Low
Frequencies, the SRX812 uses a 12-inch woofer with JBL’s
patented Dierential Drive Technolog y for reduced weight
while maximizing power amp eciency. 3” voice coils and
dual ferrite drivers deliver exceptionally low distortion and
extended low frequency response.

e SRX812 is supported with tunings for Crown XTI 2

ampliers, Crown Itech HD ampliers, and dbx DriveRack
360 signal processors, all of which can be controlled as part
of a comprehensive system with Harman Audio Architect.

System Type: Passive 12”, two-way, bass-reex

Maximum SPL Output: 135 dB

Frequency Range (-10 dB): 41Hz – 20kHz

Frequency Response (-3 dB): 57Hz – 20kHz

Power :

System Power Rating: 3200W Peak, 1600W Program, 800W Continuous

Nominal Impedance: 8 Ohm

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

Operational Modes: Passive/Bi-Amp

Speaker:

LF Driver: 2272H

HF Driver: 2432H

Coverage Pattern: 90 x 50

Crossover Frequency : 1.9kHz

Enclosure:

Materi al: 18mm plywood

Monitor Angle: 50°

Suspension/Mounting : Dual 36mm pole socket,

12 x M10 Suspension points

Handles: 3

Finish: Obsidian Duraex™ nish

Grille: Powder coated, Onsidian, 14-gauge perforated steel with acoustically

transparent black cloth backing

Dimensions (L x W x H): 16.87” x 16.31” x 25.11”

(429mm x 415mm x 638mm)

Weight: 55.0 lbs (29.3 kg)

With best in class 18mm wooden enclosures , 14 gauge steel

grilles, and JBL’s Patented DuraFlex nish, SRX800 speakers
are built to last and withstand a lifetime of hard tour use.

20 100 1000 10000 20000

Frequency (Hz)

60

70

80

90

100

110

SPL (dB)

SPL (dB)

SRX812 12” Two-Way Bass Reflex Passive System

-6 dB Beamwidth (degrees)

Directivity Index (DI), dB

Directivity Factor (Q)

Frequency Response (Main Tuning)

Frequency Response (Speech)

110

100

90

80

70

60

20 100 1000 10000 20000

Frequency (Hz)

Frequency Response (Beamwidth)

360

100

Horizontal

Vertical

10

20 100 1000 10000 20000

Frequency (Hz)

Frequency Response (Directivity)

20

100

10

0

20 100 1000 10000 20000

Frequency (Hz)

10

1

SRX812 12” Two-Way Bass Reflex Passive System

Block Diagrams

1+

NL4

IN / THRU

1-

2+
2-

+

HIGH

FREQ

-

BI-AMP

MODE

+

NL4

IN / THRU

1+
1-

2+
2-

-

LOW

FREQ

NL4

IN / THRU

FULL

MODE

NL4

IN / THRU

1+
1-

2+
2-

1+
1-

2+
2-

to XVER +

to XVER -

+

HIGH

FREQ

-

+

LOW

FREQ

-

SRX812 12” Two-Way Bass Reflex Passive System

Dimensions:

10.33

5.65

4.98

8.00

21.42

13.64

13.24

2.57

6.63

1.71

R.82

R90.02

1.73

8.81

14.64

75.00°

R1.02

8.15

.92

13.21

9.72

3.49

6.69

24.84 25.11

21.42

16.31

1.71 3.71 7.70

1.05

3.71

10.37

50.00°

14.80

16.86

12.89

JBL Professional
8500 Balboa Boulevard, P.O. Box 2200
Northridge, California 91329 U.S.A.

© Copyright 2015 JBL Professional

www.jblpro.com

SRX812

07/15

20.92

17.45 17.70