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SA-500-27 14 Installation and Operating Instructions Page 3 of 12
CP5015A 09/09/08
GENERAL DESCRIPTION
The SA-500 Siren Amplifier with Mechanical Tone is a premium unit designed for single or dual
100W speaker use. A 4-position rotary selector switch controls the primary operating modes of
Yelp -> Phaser -> Wail, Mechanical, Standby and Radio. Two-Tone may optionally replace
Phaser. A Horn push-button switch provides Horn override in all modes except Radio. A Manual
push-button switch provides Manual control of the output tone or toggling between tones depend-
ing on the selector switch setting. An independent rocker switch controls power. A permanently
mounted Noise Canceling PA microphone overrides all modes except Radio. PA and Radio
volume controls are provided on the front panel. An Auxiliary input is provided for connection to a
positive or negative horn ring circuit or switch. A latching siren Cutout input is provided for con-
nection to a door switch, etc. to stop siren tones when exiting the vehicle. An internal 8-Position
DIP switch allows selection of various options. The front panel is backlit with LED's for night
visibility. This compact unit utilizes short circuit, high voltage, and reverse polarity protection
systems for maximum service life. Output indicator light on face for diagnostics.
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 700Hz - 1500Hz (Mechanical 700Hz - 1600Hz, Two-Tone = 435 & 585Hz)
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)
Operating Temp. -15° F to +140°F
Controls 4-position rotary mode switch (Y->P->W, Mechanical, Standby and Radio).
Momentary push-button Horn switch.
Momentary push-button Manual switch.
Front panel PA and Radio volume controls.
Auxiliary input connection programmable for positive or negative activation.
Cutout input connection programmable for positive or negative latching operation.
Internal 8-Position DIP switch option selector.
Connections (10-Pin Conn) (2) Positive, (2) Negative, (2) Speaker, (2) Radio, Cutout, Auxiliary
Size 6-1/8" Wide, 5-7/8" Deep, 2-1/8" High
Weight 4-1/2 LBS.
Tones/Cycle Rates Mech Wail Yelp Phaser Two-Tone
6 CPM 13 CPM 190 CPM 15 CPS 60 CPM