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AP4-GM61
Setup and Configuration (cont.)
Setting the minimum volume using the factory dash panel controls
1. Start with the level control knob turned all the way down (counter-clockwise).
2. Set the amp gains to the desired level.
3. Set the volume on the factory radio to 1.
4. Press and hold the track up button on the radio dash panel controls for approximately ten seconds. PLEASE NOTE: The
radio will respond to the track up commands during this process, this is normal and has no effect on the AP4 operation.
5. LED 1 will turn amber, and the chimes will begin sounding every five seconds.
6. Turn the level control knob clockwise until the desired minimum volume level is reached.
7. You can now wait ten seconds to exit the settings.
AmpPRO PC App
Use of the AmpPRO PC App allows you to
do the following:
• Configure User Interface Options such as:
• Minimum Volume Level
• Center Channel Volume Percentage
• 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 PC app at :
http://aampglobal.com/appdownloads
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).
Center Channel Volume Level Percentage - This allows you to set the gain of the center channel output.
Chime Volume Level - This allows you to set the volume of the AP4 chimes (e.g.: park sensors).
Front / Rear Chimes Enabled - This allows you to enable / disable AP4 chimes (e.g.: 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.
Bass Frequency
Bass Q Factor
Pacific Accessory Corporation
Available Frequencies and Q Factors
60HZ
80HZ
Mid Frequency
100HZ
120HZ
0.50
1.00
Mid Q Factor
1.50
2.00
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Advanced Amplifier Interface for
500HZ
1KHZ
Treble Frequency
1.5KHZ
2.5KHZ
0.75
1.00
Treble Q Factor
1.25
1.50
General Motors
7.5KHZ
10KHZ
12.5KHZ
15KHZ
0.75
1.25
Rev: V3
Page 4
Date:072618
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