SA-400-11 Installation and Operating Instructions
Page 3 of 12
CP4931B
12/14/09
GENERAL DESCRIPTION
The SA-400 Siren Amplifier is a premium unit designed for single or dual 100W speaker use. A 6-
position rotary selector switch controls the primary operating modes for Horn and Radio. A Siren
push-button switch provides immediate Horn tone override in all modes except Radio. An inde-
pendent rocker switch controls power. A permanently mounted noise canceling PA microphone
with front panel volume control overrides all modes except Radio. An internal control is used to
adjust Radio volume. An auxiliary input is provided for connection to a positive or negative horn
ring circuit or switch, performing the same function as the Siren push-button. Internal DIP
switches allow Auxiliary Input Polarity selection and Horn disable. The front panel is backlighted
with LED's for night visibility. This durable unit utilizes short circuit, high voltage, and reverse
polarity protection systems for maximum service life over a wide temperature range.
SPECIFICATIONS
Input Voltage
9 - 16 VDC (negative ground)
Input Current
8 AMPS (@14 VDC - single 100W speaker)
16 AMPS (@14 VDC - dual 100W speakers)
Standby Current
Less than 150 mA
Audio Frequency
200Hz - 10 kHz + 3db
Audio Distortion
Less than 3% (@1 kHz - single 100W speaker)
Audio Output
40 watts (@14 VDC - single 100W speaker)
Audio Input
0.75V RMS MIN. 400 ohms + 10%
Output Power
105 WATTS RMS MAX. (15 VDC - single 100W speaker)
180 WATTS RMS MAX. (15 VDC - dual 100W speakers)
Siren Frequency
Horn = 435 & 585 Hz
Tones / Cycle Rates
Horn
109
CPS
High Voltage Protection
16 - 18 VDC will cause siren output to cease, resume at normal
Short Circuit Current
50 AMPS (supply circuit must be capable of supplying this for 1 second)
Operating Temperature
-15° F to +140°F
Controls
6-position rotary mode switch (Radio, Manual Horn, Manual Horn, Horn Cycle 1,
Horn Cycle 2, and Horn Cycle 3)
Momentary push-button Siren switch.
Front panel mounted PA volume control, internal Radio adjust
Auxiliary input for positive or negative connection.
Internal DIP switch option selector.
Connections (9-Pin Conn)
(2) Positive, (2) Negative, (2) Speaker, (2) Radio, Auxiliary
Size
6-1/8" Wide, 5-3/8" Deep, 2-1/2" High
Weight
5-1/2 LBS.
