EN
SPECIFICATIONS
• RMS Power Output (Watts x Channel) @ 4-ohm: 25W x 4
• RMS Power Output (Watts x Channel) @ 2-ohm: 35W x 4
• Amplifier Class: Class A/B
• Battery Voltage Range (Volts): 8V to 16V
• Selectable Turn-on Modes: 12V, Audio Signal Sense, DC
Offset, 12V remote output
• LED Indicator: red/green
• Frequency Response: 10Hz to 22kHz @ -3dB
• Signal-to-Noise Ratio: >80dB
• Signal-to-Noise Ratio (CEA-2006): 68dB
• THD+N @ 4-ohm: <10%
• Input Sensitivity, selectable: High-level or low-level
• Input Sensitivity - Low Level: 680mV to 6V
• Input Sensitivity - High Level: 1.6V to 15V
• Channel 5 & 6 pre-out voltage: 4V
• Variable Crossovers: All Channels: HPF, LPF, Band-pass w/
selectable 0 to 48dB slope
• Gain, variable: All Channels with PC
• Subwoofer level, variable: Channels 5 & 6 in PC software or
using accessory remote control from -30dB to +6dB
• Fuse Rating: 15A
• Minimum Recommended Power/Ground Wire Gauge: 8awg
• Speaker Level Inputs: Yes
• Remote Bass Control: Yes, Infinity RBC sold separately
• Length: 9-3/8" (237.5mm)
• Width: 5-11/16" (144mm)
• Height: 1-15/16" (49.5mm)
• Weight: Approx. 1000g
• Protection: DC, OVP, UVP, OCP, OTP
TROUBLESHOOTING
No audio and POWER INDICATOR is off.
• No voltage at BATT+ and/or REM terminals, or bad or no
ground connection. Check voltages at amplifier terminals with
VOM.
No audio and PROTECT INDICATOR flashes
• DC voltage on amplifier output. Amplifier may need service; see
enclosed warranty card for service information.
No audio and PROTECT and POWER INDICATORS
flash.
• Voltage less than 9V on BATT+ connection. Check vehicle
charging system.
No audio and PROTECT INDICATOR is on.
• Amplifier is overheated. Make sure amplifier cooling is not
blocked at mounting location. Verify that speaker-system
impedance is within specified limits. Or, there may be voltage
greater than 16V (or less than 8V) on BATT+ connection.
Check vehicle charging system.
Amplifier fuse keeps blowing.
• The wiring is connected incorrectly or there is a short circuit.
Review installation precautions and procedures. Check wiring
connections.
Distorted audio.
• Gain is not set properly. Check Individual Channel Volume and/
or Mater Volume settings. Check speaker wires for shorts or
grounds. Amplifier or source unit may be defective.
Distorted audio and PROTECT INDICATOR flashes.
• Short circuit in speaker or wire. Remove speaker leads one at
a time to locate shorted speaker or wire, and repair.
Music lacks dynamics or "punch."
• Speakers are not connected properly. Use 0°/180° phase
adjustment, and check speaker connections at amplifier and
speaker.
CA_Infinity_DSP Amplifier INFDSP4425_QSG_SOP_V5.indd 6
CA_Infinity_DSP Amplifier INFDSP4425_QSG_SOP_V5.indd 6
9/29/2020 1:47:48 PM
9/29/2020 1:47:48 PM
