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Network Digital Amplifier
DPA-4300M
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DIGITAL AMPLIFIER
CLASS-D
Class D audio amplifier offer greater power efficiency over traditional amplifiers. Among their advantages is
their reduced physical size and lower heat dissipation. They offer less than 1% THD, total harmonic distortion
with an increased signal to noise ratio to 90db and a widened frequency response from 30Hz ~ 18 KHz.
SLEEP MODE
When in Sleep mode the amplifier is in low power mode. This mode save significant electrical consump-
tion compared to leaving a device fully on and idle. The amplifier instantly turns full on when input signal
is detect.
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Independent SMPS Module
SAFETY
Each amplifier channel is completely independent of each other. Even when the amplifier frame is loaded
with more than one amplifier module, models can safely be changed without affecting the other.
Hot Swappable
An amplifier module can easily be replaced with-out interrupting the power and operation of other modules.
This is Ideal for such applications as subway, train stations, airports where broadcasting cannot be inter-
rupted. This offers ease of replacement, maintenance and repair.
AC&DC dual power operation
Normal power operation via the AC 117v or 220v electrical
power input. Amplifier will switch automatically to DC 24V
battery backup supply input when AC power
is interrupted.
1"5 &/5
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Integrated System Management
Remote monitoring & control
TCP / IP Communication
Remote monitoring and control of the amplifier can be performed
via TCP/IP networking. Ideal for large facilities where multiple am-
plifies are installed and deployed. Existing building network in-
frastructure can easily be used eliminating the cost of installing a
separate network.
E
N
T
W
O
R
K
3AMP ERROR
3AMP ERROR
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European/U.S.A. Type
Priority
Program
Override
EN-54
Compatible
LCF
Each amplifier module has 2 audio inputs. The Primary program input, PGM and Priority
input, PRI. The primary regular broadcast program input, PGM is interrupted and over
ridden by the Priority input, PRI, when a contact closure is received on the PRI select ter-
minal. This is Ideal for Emergency message broadcasting applications.
The DPA-4300M amplifier conforms to EN-54 European Emergency messag-
ing standards. Contact closure status indicators for:
AC POWER
DC POWER
FAN FAULT
AMP FAULT, over current, over temp
A 3 position LOW CUT FILTER, at 20Hz, 200Hz, and 400Hz, helps to improve speech
intelligibility.
70/100V
Selectable
EUROBLOCK
CASCADE
The DPA-4300M can drive either 70V or 100V output lines.
Connection and cabling is made easy using removable
screw type Euroblock terminals for connection to input
and output terminals.
The input signal of adjacent amplifier channel
can be linked to each other.
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Rear Panel
Front Panel
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VOLUME
VOLUME UP SwitchVOLUME DOWNSwitchPRIORITYSwitch
VOLUME UP Switch : Increasing PGM, Releasing when PGM MUTE, LCD Display
VOLUME DOWN Switch
Decreasing PGM, Releasing when PGM MUTE, LCD Display
2
PRIORITY
PRIORITY Switch + VOLUME UP Switch :Increasing PRILCD Display
PRIORITY Switch + VOLUME DOWN Switch : Decreasing PRI
LCD Display
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POWER
Power Switch
4
LED
A. ST-BY LED
B. SLEEP LED
Detecting signal presence
Without a signal turns to SLEEP state, With a signal turns to NORMAL operating automatically
C. SIGNAL LED
(-30dB)
D. CLIP LED (+0.5~1dB)
E. PROT LED
Displays activation of protection curcuit when default found
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REMOTE CONTACT I/O TERMINAL
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INPUT TERMINAL
3
HPF SWITCH
4
BRIDGE/CASCADE SWITCH
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TCP/IP TERMINAL
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ID SELECTOR
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AC INLET
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AC FUSE
9
AC STBY FUSE
10
DC STBY FUSE
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DC TERMINAL
12
SPEAKER TERMINAL
2
4
3
1
1 4 2
3 12115 7 8 96 10
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Luxury hotel banquet room application
Transportation Application
A Hall
CS-80 CS-80 CS-80
PRI
PGM 4 Bus
B Hall
CS-30 CS-30 CS-30
CS-30 CS-30 CS-30
Emergency
Broadcast
Head office
Train station A Train station B Train station C
Control Room
Lobby
Platform
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Specifications
Detail View
DPA-4300M
Rated Output Power (at 1kHz, T.H.D 1% with AES17) 300W × 4CH (RMS)
Speaker Output / Impedance 100V / 33.31, 70V / 16.31
Input Senstivity / Impedance 1V (0dBV) / 10k1 Balanced
Frequency Response (±3dB) 100V (Speaker Output) 30Hz ~ 18kHz
70V (Speaker Output) 30Hz ~ 18kHz
T.H.D Rated Output (300W/CH, 1kHz with AES17) Less than 1%
1
/3 Rated Output (100W/CH, 1kHz with AES17) Less than 0.1%
Signal to Noise Ratio (20kHz LPF, A-WTD) More than 90dB
HPF Characteristics (-3dB ± 2dB) 200Hz -6dB/oct (SW LEFT)
400Hz -6dB/oct (SW RIGHT)
CMRR (Common Mode Rejection Ratio) More than 60dB
Power Source 24VDC or 220VAC/60Hz or 120VAC/60Hz
Dimenson (SET) 482(W) x 132(H) x 420(D)mm / 19(W) x 5.2(H) x 16.5(D)in
Inter-M Corp. (IMK)
653-5 Banghak-Dong, Dobong-Ku, Seoul, Korea
Overseas Sales Team
Tel_ +82-2-2289-8141~7 Fax_ +82-2-2289-8149 E-mail_ overseas@inter-m.com www.inter-m.com
Ⲽ Design and specification are subject to be changed without pre notice.
Ⲽ Design and specification are subject to be changed without pre notice.
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