© 2024 Stinger Solutions
Pacific Accessory Corporation
Page 4
Rev: 1
Date:09242024
Advanced Amplier Interface
for Select Toyota Applications
AP4-TY14
Use of the AmpPRO App allows
you to do the following:
• Congure User Interface Options such
as:
• Minimum Volume Level
• Chime (Radio Beeps) Volume Level
• Enable / Disable AP4 Chimes (Radio
Beeps)
• Enable / Disable factory EQ
• Bass / Mid / Treble boost frequencies
and Q factor
• Update Product Firmware
• Read Firmware / Hardware Versions
• You can download the AmpPRO app at :
PAC-Audio.com
AmpPRO App
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 radio beeps that are heard through the AP4.
Chimes Enabled - This allows you to enable / disable AP4 radio beeps (ie: tone that is heard when pressing radio buttons).
This is used when mixing factory and aftermarket speakers. It is also possible to turn the beeps off altogether using the radio's
factory settings menu.
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.
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
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