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PAC-Audio.com
Pacific Accessory Corporation
Page 4
Rev: V1
Date: 091120
Advanced Subwoofer Amplier Interface
for Select Ford Vehicles
APSUB-FD21
AmpPRO App (cont.)
Firmware Updates
The AmpPRO app will also allow you to update the interface with new rmware as it becomes available. Please visit
www.pac-audio.com or contact our tech support department to see if there is a rmware update for your interface.
Connect the interface to your PC and select "Firmware", then “Update Firmware”. Now select “Select File”. Finally, browse to the
place where you saved the le and select it. This will begin the updating process. Once nished, disconnect the interface from
the PC and resume normal operation.
60HZ
80HZ
100HZ
120HZ
0.50
1.00
1.50
2.00
Bass
Frequency
F1: 60Hz Center Frequency | 0.50 Q Factor
F2: 100Hz Center Frequency | 2.00 Q Factor
Bass
Q Factor
20 63 125 250 500
dB
+15
+12
+9
+6
+3
0
-3
-6
-9
-12
F1 F2
AVAILABLE FREQUENCIES AND Q FACTORS
Restoring Factory Settings
You can restore the interface to factory default settings by pressing and holding the programming button on the side of the module
for 10 seconds until the status LEDs start blinking red. Once the LEDs start blinking red, release the button.
This reset will restore the following settings to their factory defaults:
• Minimum Volume Level
• Enable / Disable Factory EQ
• Factory EQ Frequency
• Factory EQ Q Factor