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PAC-audio.com
Pacific Accessory Corporation
Page 4
Rev. 070717
Advanced Amplifier Interface
for Ford / Lincoln
AP4-FD11
AmpPRO App (cont.)
PLEASE NOTE: These settings can be adjusted with the module installed in the vehicle, or on the bench. However, it is
recommended to make the adjustments with the module installed, and the factory radio on, so that the changes can be
heard.
Minimum Volume Level -
This allows you to set the minimum volume level of the factory radio (factory radio volume level 1).
Chime Volume Level -
This allows you to set the volume of the AP4 chimes (ie: radio button beeps).
Chimes Enabled -
This allows you to enable / disable AP4 chimes (ie: radio button beeps). This is used when mixing factory
and aftermarket speakers.
EQ Enabled -
This allows you to enable / disable the 2 band factory EQ.
Bass / Treble Freq / Q Factor -
This allows you to set the center frequency that will be adjusted when setting the 3 band factory
EQ, as well as the Q Factor for each frequency. The Q Factor determines how many of the adjacent frequencies will be affected
when adjusting the selected frequency. The lower the Q Factor, the more frequencies will be affected.
60HZ
7.5KHZ
80HZ
10KHZ
100HZ
12.5KHZ
120HZ
15KHZ
0.50
1.00
1.50
2.00
Available Frequencies and Q Factors
Bass Frequency
Treble Frequency
Bass Q Factor
Treble Q Factor
0.75
1.25
Firmware Updates
The AmpPRO app will also allow you to update the interface with new firmware as it becomes available. Please visit
www.pac-audio.com or contact our tech support department to see if there is a firmware 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 file and select it. This will begin the updating process. Once finished, disconnect the interface from
the PC and resume normal operation.
