Agent/Distributor:
www.phontech.net
Zenitel AS reserves the right to change the design and/or specifications
at any time without prior notice. Reservations are also taken towards any
general errors that may occur.
v.A
Power Amplifier 1670
PUBLIC ADDRESS & ALARM SYSTEM
The AMP 1670 is a high performance, high efficiency 400 watt power amplifier de-
signed to meet the needs of the most demanding PA/GA applications. The amplifier
is designed to operate from a 48VDC power supply. It is only 1U high, weighs only
6.5kg and power consumption is only 480W at rated power output. Quiescent po-
wer consumption is also very low, at less than 5W.
Inputs and Outputs
The AMP 1670 features two balanced line level inputs, normal and priority.
The AMP 1670 provides one 100 volt line output.
Controls and Metering
The front panel consists of a recessed power switch and recessed screwdriver adjus-
table controls for adjustment of the optional line surveillance board. The front panel
of the AMP 1670 includes a LED dB meter, Power status led, amplifier protection and
line surveillance status leds.
Protection
The AMP 1670 features a slow start function as well as overload and overdrive
protection. Should the amplifier be overdriven, a current limiter will protect the unit,
and in a worst case scenario the amplifier will shut down until the problem is re-
solved. Once the problem is fixed (shorted speaker line, or overdriven input), the
amplifier will automatically reset and continue operation. The AMP 1670 features
internal heatzink with fan cooling. The fan will start to turn if the operating tempe-
rature exceeds 40°C, and turn at full speed at 50°C. The amplifier will protect itself
at 90°C and resume operation when the temperature has dropped to 70°C. The fan
exhaust is in the rear of the amplifier, and the air inlet is in the front.
SPECIFICATION
Power Output: 400 Watts RMS into 100 Volt line
Maximum Load: 25 Ohms @ 100V
Frequency Resp.: 200Hz - 15kHz (± 3dB) into 100V
THD: Less than 0.5% @ 1kHz
Distortion at Max Power: Less than 1%
Signal To Noise Ratio: -90dB
Input Sensitivity: 0.775Vrms (0dBu)
Input Impedance: 22K Ohms
Output: 100 Volts line
Metering/Indicators Amp Status: LED output meter
Power supply LED
Protection LED
Power Source: 48VDC nominal (40-64V)
Power Consumption: 480 Watts (max)
Power Consumption quiescent: 5W
Dimensions: 44mm H x 483mm W x 320mm D
Weight: 6,5 kg
Other Features:
• Zone selection: It is possible to disconnect the load
and mute the amplifier to provide zone selection.
• It is possible to install the optional PHONTECH Line
Surveillance board to monitor both amplifier opera-
tion and line condition.
• The amplier can be muted via a mute input.
• It is possible to choose which line input is to
operational.
• Hot pluggable for fast and easy eld replacement.
• Protection Internal Cooling Fan with temperature
sensor
• Current Limiter with auto protect and auto reset
Controls: Front Panel Power Switch, Recessed front
panel
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