JBL SRX812 Spec Sheet 10 26 15

JBL_SRX812_SpecSheet_10 26 15 JBL SRX812 | 12 Two-Way Bass Reflex Passive System

User Manual: JBL JBL SRX812 | 12 Two-Way Bass Reflex Passive System

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SRX812

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-reflex
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™ finish

Specifications:
System:
System Type:

Applications:
The 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 stage monitor, and rear and side
fills. 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 configurable loudspeaker
system.
The 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, efficient, and
extremely powerful. This 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 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 SRX812 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.

Maximum SPL Output:

Passive 12”, two-way, bass-reflex
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:
Operational Modes:

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

Speaker:
LF Driver:

2272H

HF Driver:

2432H

Coverage Pattern:

90 x 50

Crossover Frequency:

1.9kHz

Enclosure:
Material:
Monitor Angle:
Suspension/Mounting:
Handles:

18mm plywood
50°
Dual 36mm pole socket,
12 x M10 Suspension points
3

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:

16.87” x 16.31” x 25.11”
(429mm x 415mm x 638mm)
55.0 lbs (29.3 kg)

SRX812 12” Two-Way Bass Reflex Passive System

Frequency Response (Main Tuning)
110

SPL (dB)

100
90
80
70
60
20

100

1000

Frequency (Hz)

10000

20000

10000

20000

10000

20000

Frequency Response (Speech)
110

SPL (dB)

100
90
80
70
60
20

100

1000

Frequency (Hz)

Frequency Response (Beamwidth)
-6 dB Beamwidth (degrees)

360

100

Horizontal
Vertical
10
20

100

1000

Frequency (Hz)

20

100

10

10

0
20

100

1000

Frequency (Hz)

10000

1
20000

Directivity Factor (Q)

Directivity Index (DI), dB

Frequency Response (Directivity)

SRX812 12” Two-Way Bass Reflex Passive System

Block Diagrams
1+
1-

NL4
IN / THRU 2+
2-

BI-AMP
MODE
1+
1-

NL4
IN / THRU 2+
2-

+
+
-

FULL
MODE

-

NL4
IN / THRU 2+
2-

HIGH
FREQ

to XVER +
to XVER -

1+
1-

LOW
FREQ

+

1+
1-

NL4
IN / THRU 2+
2-

HIGH
FREQ

+
-

LOW
FREQ

SRX812 12” Two-Way Bass Reflex Passive System

13.64

8.00

Dimensions:

2.57

4.98
1.71

21.42

6.63
14.64

R1.02

75.00°

8.81

5.65

1.73

R.82

13.24

10.33

R90.02
.92

8.15

12.89

16.31

13.21

3.49

9.72

14.80

21.42

10.37

1.71

3.71

50.00°

1.05

24.84 25.11

6.69

16.86

3.71
7.70

JBL Professional
8500 Balboa Boulevard, P.O. Box 2200
Northridge, California 91329 U.S.A.
© Copyright 2015 JBL Professional
www.jblpro.com
17.45 17.70

20.92

SRX812
07/15



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