Owner's Manual
Table Of Contents

© 2019 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Pacific Accessory Corporation
Page 4
Rev. V12
Date:092019
Advanced Amplier Interface for
Chrysler / Dodge / Jeep / RAM
AP4-CH41 (R.2)
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: park sensors).
• Front / Rear Chimes Enabled - This allows you to enable / disable AP4 chimes (ie: park sensors). This is used when
mixing factory and aftermarket speakers.
• 3 Band EQ Enabled - This allows you to enable / disable the 3 band factory EQ.
• Bass / Mid / 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. See below for available frequencies and Q Factors.
60HZ 500HZ 7.5KHZ
80HZ 1KHZ 10KHZ
100HZ 1.5KHZ 12.5KHZ
120HZ 2.5KHZ 15KHZ
0.50 0.75
1.00 1.00
1.50 1.25
2.00 1.50
Bass Frequency Mid Frequency Treble Frequency
Available Frequencies and Q Factors
Bass Q Factor Mid Q Factor Treble Q Factor
0.75
1.25
AmpPRO PC App
Use of the AmpPRO PC App allows
you to do the following:
• Congure User Interface Options such as:
• Minimum Volume Level
• Chime Volume Level
• Enable / Disable AP4 Chimes
• Enable / Disable factory EQ
• Set Bass / Mid / Treble center
frequencies and Q factor
• Update Product Firmware
• Read Firmware / Hardware Versions
• You can download the AmpPRO app at :
http://aampglobal.com/appdownloads