Crowson Technology A300 - Manual (Page 6)

Specifications
Continuous RMS Power Output
2 Hz – 600Hz, Both Channels Driven
160 watts x 2, 6 ohm load (two actuators)
170 watts x 2, 3 ohm load (four actuators)
Frequency Response
2 Hz - 600Hz, +0/-3 dB, 1 watt
Input Impedance
33 Kohm
Max Input Sensitivity
100 mV in for 150W/ch out
Auto Turn On
Audio sense 15mV
5 minute turn off delay
AC Power Requirement
110 - 120 V / 220 -240 V, 50 - 60 Hz
500W
Low pass filter (LPF)
variable from 20Hz to 600Hz
12db/octave
Dimensions
16.5” Wide
15.5” Deep with connectors
3.75” High with feet, 3.5” panel only
2U rack-mountable (A300RM rack-mount adaptor required)
Net Weight
24 lbs
Low pass filter (LPF)
variable from 20Hz to 600Hz
12db/octave
A300 OWNER’S GUIDE
6
Troubleshooting and Specifications
Troubleshooting
No Motion
• Check that AC is live.
• Is the unit on? The front panel Power Button should be illuminated in blue. If it is not, check the setting of the rear
power switch. If it is set to the “Auto” position and the red Power Standby Indicator light is illuminated, make sure an
input signal is present. If the switch is set to “Manual” press the front Power Button.
• Check that input cables and speaker wires are secure at both ends.
• Check the fuse.
• Make sure the control preamp/receiver is on and the system speakers are producing low-frequency sound (bass).
• Check for short-circuited speaker wires.
• Check for excessive temperature and inadequate ventilation conditions.
• Check the LPF Knob. Increasing the setting will increase the quantity of motion.
• Check the Volume Knob. Increasing the setting will increase the quantity of motion.
Background Hum
• Move the Ground switch to “Lift”.
• Move audio cables and AC cords away from each other.
• Try different routes for the audio cables and AC cords.
• Make sure insulating shoulder washers are used if unit is rack-mounted.
Overheating
• Remove any external sources of heat.
• Increase ventilation around the A300.
• Change Impedance switch to 3Ω/ch.