PAC APSUB-CH21 Manual

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Side 1/5

Rev: V1

Date: 091120 Page 1

PAC-Audio.com

Advanced Subwoofer Amplier Interface for

for Select Chrysler / Dodge / Jeep Vehicles

APSUB-CH21

The APSUB-CH21 provides a 2-channel non-fading pre-amp output for use with an aftermarket amplier and

subwoofer. Using the full range, xed level head unit output, in conjunction with CAN messages, the APSUB-CH21

delivers a low pass variable 5v RMS pre-amp output with bass equalization and level control capabilities. The signal

has a 350Hz / 24dB Linkwitz-Riley low pass lter applied. A data controlled remote amplier turn on wire is also

provided by the APSUB-CH21.

Introduction and Features

Important Notes

1. This interface is only compatible in vehicles equipped with a data-bus controlled amplied sound system. To verify

compatibility, look for an Alpine, Beats, Innity, or Harmon Kardon badge on the door speakers, center speaker, or factory

subwoofer grill. If none of these brands are shown; check for the presence of a center speaker or subwoofer.

2. The factory amplier must remain connected, and in the vehicle after the APSUB-CH21 has been installed.

3. The remote output is rated at 2A of current. If more current is needed; an external relay must be used.

4. The subwoofer outputs are non-fading. The output level of the subwoofer channel can be controlled using the supplied

level control knob. If the level control knob is not connected the output level will default to 100%.

5. The minimum volume level is set to a default. If you are happy with this level in your particular application then additional

adjustment is not required. Please refer to the Setup and Conguration section on page 2 for more details.

6. The level control knob must be connected in order to manually adjust the minimum volume setting.

7. No adjustments can be made manually using the programming button or the factory SWC when the module is connected

to a PC.

Wiring Connection Chart

To Aftermarket

Amplifier

Subwoofer Outputs

Remote Turn On Output

2A Max Output

AP4-CH21-HAR

To Radio To Vehicle

Harness

Non-Fading

Level Control

Knob

The aftermarket amplier must have a very solid ground and the amplier power/ground connections

should be made before connecting the RCA's or Remote Turn On to the APSUB-CH21

Rev: V1

Date: 091120 Page 2

PAC-Audio.com

Advanced Subwoofer Amplier Interface for

for Select Chrysler / Dodge / Jeep Vehicles

APSUB-CH21

Setup and Conguration

1. Turn the ignition on. LED 1 on the interface will turn on and the +12v remote output will turn on.

2. Set the amp gain(s) to the desired level. We recommend using an oscilloscope and test tones to set the amp gain(s).

Please refer to the MECP Advanced study guide (p. 360) if you are unfamiliar with this process.

3. Check volume, balance, fade and EQ settings.

4. If you would like to adjust the minimum volume, do so using one of the methods outlined below. If you are happy with the

default level, no adjustment is necessary.

Manually Setting the Minimum Volume

If the minimum volume of the radio (factory radio volume level 1) is too loud, you can manually set the level of the minimum

volume using either the programming button on the side of the interface or the factory SWC. If you would like to set the

minimum volume using the AmpPRO app, please proceed to the AmpPRO App section.

PLEASE NOTE: Level control knob must be connected to module for either of the following methods.

Installation

1. Remove factory radio.

2. Disconnect the gray 22-pin factory harness connector from radio.

3. Connect APSUB harness to vehicle harness.

4. Connect APSUB harness to factory radio.

5. Set any feature DIP switches that apply to your install.

- Set DIP switch 2 on (down) to lower the RCA output voltage to 4v. Leave DIP switch 2 o󰀨 (up) to keep the

RCA output voltage at 5v.

- DIP switches 1, 3, and 4 are not used.

6. Connect the APSUB harness to the module.

7. Connect the level control knob to the module and install in an accessible location.

8. After the aftermarket amplier power/ground connections are made, connect the signal cables and remote input from the

aftermarket amplier to the APSUB.

9. Reconnect any additional harnesses removed from the radio and reinstall the radio.

DIP

1234

No Function No Function No Function5v / 4v Preout

1 2 3 4

Set DIP switches to the ON position to activate the corresponding features.

Set DIP switches to the OFF position for any features that are not desired.

Module Layout

Interface Connector 1

Expansion Port

Programming Button

Feature Select

DIP switches

Non-Fading Level Control

Knob Connection

USB Connection

LED 1

Subwoofer Output

LED 2

Produkt Specifikationer

Mærke:	PAC
Kategori:	Ikke kategoriseret
Model:	APSUB-CH21

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