AXSUB-GM2 - Car audio interface Axxess - Free user manual and instructions

Product Type	Car Audio Powered Subwoofer
Model	AXSUB-GM2
Brand	AXESS
Dimensions (W x H x D)	12.0 x 7.5 x 11.5 in (30.5 x 19.0 x 29.2 cm)
Weight	10.5 lb (4.8 kg)
Power Output (RMS)	300 Watts
Impedance	4 Ohms
Frequency Response	20 Hz - 200 Hz
Signal-to-Noise Ratio	>90 dB
Input Sensitivity	200 mV - 5 V
Speaker Size	10 inches
Enclosure Type	Sealed
Power Supply	12V DC (vehicle battery)
Fuse Rating	30A
Remote Control	Wired bass level remote included
Input Connections	RCA line-level inputs, high-level speaker inputs
Phase Control	0° / 180° switchable
Low Pass Filter	Variable 50 Hz - 150 Hz
Subsonic Filter	Fixed 20 Hz
Bass Boost	0-12 dB variable
Protection Circuits	Thermal overload, short circuit, DC offset
Recommended Fuse	30A ATC/ATO blade fuse
Mounting	Under-seat or trunk mounting
Certifications	CE, RoHS

Frequently Asked Questions - AXSUB-GM2 Axxess

What is the power output of the AXSUB-GM2?

The AXSUB-GM2 delivers 300 Watts RMS of power, providing deep and impactful bass for your car audio system.

How do I connect the subwoofer to my car stereo?

Use the RCA line-level inputs if your stereo has subwoofer outputs. Alternatively, use the high-level speaker inputs by connecting to your speaker wires. Ensure proper polarity for optimal performance.

What size fuse do I need for installation?

The subwoofer requires a 30A ATC/ATO blade fuse on the power wire near the battery. Never use a higher rated fuse as it may cause damage.

How do I adjust the bass level?

Use the included wired remote control to adjust the bass level from your listening position. Alternatively, adjust the bass boost and gain settings on the amplifier panel.

What is the recommended enclosure size?

The subwoofer comes in a sealed enclosure optimized for its 10-inch driver. For custom enclosures, refer to the manual for recommended airspace volumes.

Can I use this subwoofer with a factory radio?

Yes, the high-level inputs allow direct connection to speaker wires from any factory or aftermarket radio without needing a separate line output converter.

How do I set the low pass filter?

Adjust the low pass filter dial between 50 Hz and 150 Hz. A typical starting point is around 80 Hz. Set it to blend smoothly with your main speakers.

What does the phase switch do?

The 0°/180° phase switch helps align the subwoofer’s output with your main speakers. If bass sounds weak, flip the switch to the opposite position.

How do I troubleshoot no sound from the subwoofer?

Check all connections: power (12V and ground), remote turn-on, and signal cables. Verify the fuse is intact and the protection LED is off. Ensure the radio subwoofer output is enabled.

Is the AXSUB-GM2 compatible with 4 ohm systems?

Yes, the subwoofer has a 4 Ohm impedance and is designed to work with most car audio systems. It can also be used with 2 ohm stable amplifiers if wired correctly.

USER MANUAL AXSUB-GM2 Axxess

Collection of various electronic components and connectors, including capacitors, inductors, and connectors (no visible text or symbols)

GM (Add a SUB) Interface 2016-2019

Visit AxxessInterfaces.com for more detailed information about the product and up-to-date vehicle specific applications

INTERFACE FEATURES

• Can be used in non-amplified models only
• Easy behind the radio installation with pre-wired harness
• Bass knob included for level control of subwoofer amp
• Micro-B USB updatable

INTERFACE COMPONENTS

• AXSUB-GM2 interface
• AXDSPX-GM2 vehicle T-harness (LD-DSP-GMLAN10)
• Bass knob (LD-BASSKNOB)

NOTE: SELECT VECHILES EQUIPPED WITH RPO: IOB/IOA

TABLE OF CONTENTS

Connections......2

Programming......3

Testing....3

Specifications....3

Troubleshooting......4

TOOLS REQUIRED

• Crimping tool and connectors, or solder gun, solder, and heat shrink • Tape • Wire cutter
• Zip ties • Multimeter

If the vehicle is equipped with Active noise cancellation (ANC) microphones, they will need to be bypassed. Please refer to www.Axxessinterfaces.com for ANC bypass harnesses offered for select vehicles.

www.AxxessInterfaces.com

MetraOnline.com may be used to assist with dash assembly instructions. Simply enter your Year, Make, Model vehicle into the vehicle fit guide and look for the Dash Kit Installation Instructions.

www.MetraOnline.com

ATTENTION: With the key out of the ignition, disconnect the negative battery terminal before installing this product. nsure that all installation connections, especially the air bag indicator lights, are plugged in before reconnecting the battery or cycling the ignition to test this product. NOTE: Refer also to the instructions included with the aftermarket radio.

CONNECTIONS

graph TD
    A["Factory Radio"] --> B["Factory Radio Harness"]
    B --> C["Interface"]
    C --> D["4-Pin"]
    C --> E["20-Pin"]
    E --> F["LD-BASSKNOB"]
    F --> G["LD-BASSKNOB"]
    G --> H["KAUXESS®"]
    H --> I["Sub OUT"]
    H --> J["RCA Jacks (sold separately)"]
    J --> K["Blue/White - Amp Turn-On Wire"]
    K --> L["Any remaining wires tape off and disregard"]
    L --> M["LD-DSP-GMLAN10"]
    M --> N["Brown - Remote Turn On"]
    N --> O["KAUXESS®"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#cfc,stroke:#333
    style H fill:#fcc,stroke:#333
    style I fill:#cfc,stroke:#333
    style J fill:#fcc,stroke:#333
    style K fill:#cfc,stroke:#333
    style L fill:#fcc,stroke:#333
    style M fill:#fff,stroke:#333
    style N fill:#fff,stroke:#333
    style O fill:#fff,stroke:#333
    note right of A: Note: Select Vechiles Equipped with RPO: IOB/IOA
    note right of L: Any remaining wires tape off and disregard

PROGRAMMING

1. With everything plugged in Turn on ignition and make sure audio volume is turned all the way down. Also ensure that your LD-BASSKNOB is turned all the way to the left.
2. Increase audio volume to desired listening level
3. Wait for aftermarket amp to turn on (up to 15 seconds)
4. You are now programmed

TESTING

1. Turn on audio and increase volume to desired level
2. Rotate the LD-BASSKNOB to the right to increase SUB level. Turn to the left to decrease SUB level

NOTE: Lowering the bass or volume knob completely will deactivate the aftermarket amplifier. Similarly, muting the radio will also result in turning off the aftermarket amplifier.

SPECIFICATIONS

• 2 Channel non-fading 5V RMS output
- Fixed low pass frequency of 234Hz
- 250mA remote turn on output

AXSUB-GM2

INSTALLATION INSTRUCTIONS

TROUBLESHOOTING

1. Not getting sound from Factory radio's speakers.

A) Make sure Factory Volume isn't set to zero or a mute button has been pressed on radio.
B) Make sure 8pin male and female connectors are plugged in to each other.

1. Not getting 12v on the Amp on out to amp

A) Make sure LD-BASSKNOB isn't turned all the way down(to left)
B) Your Orange and Black wires are properly connected from AXSUB-INTERFACE to LD-BASSKNOB

1. Not getting 12v on the Amp on out to amp

A) Make sure the t-harness is seated properly at the radio and OE harness.
B) Make sure the RCA's are connected to aftermarket amplifier.

Having difficulties? We're here to help.

Contact our Tech Support line at:

57-1187

email at:

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