JBL 5234A User Manual

AC or 200 to 240 V AC power mains.
The unmodified frequency response of the
dividing network shall be 20 Hz to 20 kHz,
±0.5 dB. Distortion shall be less than 0.01% THD
at +18 dBv* into 100 kohms or greater, or 0.03%
THD at +18 dBv into a 600 ohm load. Signal-to-
noise ratio shall be greater than 90 dB, measured
over a 20 Hz to 20 kHz equivalent bandwidth.
Isolation between channels shall be greater than
70 dB.
The electronic frequency dividing network shall
be a JBL Model 5234A.
PRODUCT SPECIFICATIONS
ELECTRICAL
Gain
0 dB in the pass band
Rated Output Level
6.2 V rms (+18 dBv*) measured with 20 Hz to 20 kHz
equivalent bandwidth filter
Distortion
0.01% THD, 20 Hz to 20 kHz @ +18 dBv into a load
greater than 10 kn
Frequency Response
±0.5 dB, 20 Hz to 20 kHz (high-pass functions
disengaged)
Input Impedance
Greater than 50 kn, transformerless differential
amplifiers for balanced or unbalanced line level sources
Output Source Impedance
50 ohms, unbalanced
Output Load Impedance
600 ohms or greater
Channel Isolation
Greater than 70 dB, 20 Hz to 20 kHz
Signal/Noise Ratio
Greater than 90 dB, 20 kHz equivalent bandwidth
Controls
CH1 & CH2 High Frequency Level (front)
Power On/Off (front)
CH1 & CH2 Subsonic Filter Characteristic (internal)
Line Voltage Selector (rear)
Crossover Frequency & Filter Slope
Selectable by plug-in modules, 12 dB or 18 dB/octave,
at factory determined frequencies (±10%), special
modules for certain JBL monitor speakers, or at
customer determined frequencies (via blank plug-in
modules)
NOTE: One module is required for each channel, the
unit comes from the factory with "jumper" modules
that pass the signal unfiltered so the unit functions a
1:2 line amplifier.
12 dB/octave
18 dB/octave
Model 52-
Freq.
Model 51- Freq.
5120 Blank
5130 Blank
5121 250 Hz
5132 500 Hz
5122 500 Hz
5133 800 Hz
5123 800 Hz
5145 (Special for
5124
1200 Hz
JBL 4345 & 4355)
5125 5000 Hz
5127 7000 Hz
5130 (Special for JBL 4430 & 4435)
5140 (Special for JB L 4343 & 4350)
*The 0 dBv reference is 0.775 V rms. Across a 600 ohm load, this
voltage represents a power level of 1 mW (0 dBm).
High Pass Filter (Subsonic Cutoff)
12 dB per octave rolloff, the cutoff frequency and
Q switch selectable
NOTE: These characteristics are switch selectable via
the internal DIP switches, one per channel.
Filter
Level at Filter
Frequency
Frequency
Filter Q
20 Hz
-3dB
0.707
20 Hz
+ 6dB 2.0
30 Hz
-5.5 dB
0.54
30 Hz
-1.5dB
0.84
30 Hz
+ 6dB 2.0
40 Hz
-3dB
0.707
40 Hz
+ 6dB 2.0
Power Requirements
6 watts, 100- 120 or 200 - 240 V AC, 50 or 60 Hz
Operating Temperature
5° C (41° F) to 55° C (132° F)
PHYSICAL
Mounting Dimensions
44 mm x 483 mm x 194 mm deep
(1-3/4 in x 19 in x 7-5/8 in deep)
Net Weight
1.8 kg (4 lb)
Shipping Weight
3.0 kg (6-1/2 lb)
Figure 1 — Total Harmonic Distortion
(Distortion components in dB below +18dBv output)
Figure 2 — 5234A Low Frequency Cutoff Characteristics
(Selectable each channel by means of internal switches)
JBL continually engages in research related to product
improvement. New material, production methods and
design refinements are introduced into existing products
without notice as a routine expression of that philosophy.
For this reason, any current JBL product may differ in
some respect from its published description, but will
always equal or exceed the original design specifications
unless otherwise stated.
3

JBL 5234A Specifications

General

Brand	JBL
Model	5234A
Category	Crossover
Language	English