Active Subwoofer
Model: AS-1
Introduction
Thank you for choosing our company's high-end car audio series products. In order to use this product better, please read the manual carefully and keep it properly.
Function Introduction
- A. Power and Protection Indicator: LED indicator for power status and protection mode (e.g., ?).
- B. Phase transfer switch: Allows selection of 0° or 180° phase (e.g., ?️).
- C. REM (Remote) Terminal: When the high level input is used and REM is not connected, this acts as a power control switch (ON/OFF) to activate the subwoofer.
- D. Bass filter potentiometer: Adjusts the low-pass filter frequency (e.g., ?️).
- E. Bass potentiometer: Adjusts the bass level (e.g., ?️).
- F. Volume potentiometer: Adjusts the overall volume (e.g., ?️).
- G. Remote bass volume control port: Connects to an optional remote bass control knob (e.g., ?).
- H. High level input port: For connecting to head units without RCA pre-outs (e.g., ?).
- I. Low level input port: Standard RCA input for connecting to head units with pre-outs (e.g., ?).
- J. Fuse socket: Houses the main power fuse (e.g., ⚡).
- K. Power input terminal: Connects to the vehicle's power system (+12V, GND, REM) (e.g., ?).
? Note: The actual frequency of the low-pass filter may be higher or lower than the set value, with an error of -20% to +20%.
Connection
Low Level Input Connection
High Level Input Connection
? Note: Do not input high and low levels at the same time.
Power Input Connection
Way One
Way Two
? Note for Way One: The 'AUDIO POWER ON' switch is in the 'OFF' position.
? Note for Way Two: The 'AUDIO POWER ON' switch is in the 'ON' position.
Remote Level Control Connection
? Note: The remote control is installed in the right place (can not affect the safety of the driver).
Parts List
| High frequency input line | RCA audio cable | 12V Power cord + fuse | GND cable |
| REM cable | Bass volume controller | Mount screws |
Specifications
| Specification | Value |
|---|---|
| Product Model | AS-1 |
| THD Total Harmonic Distortion | 0.4% |
| SNR Signal to Noise Ratio | >90dB |
| Frequency Response | 20Hz-150Hz |
| High Frequency Input Sensitivity | 0.9V |
| LVR Low Input Sensitivity | 300mV |
| Bass Boost | 50Hz-150Hz |
| HPF High Pass Filter | 0 to 12dB |
| Load | 20Hz |
| Fuse Rating | 15A-25A |
| Inner Box Dimensions (L x W x H) | 395 x 320 x 125mm |
Troubleshooting
| Troubleshooting Item | Troubleshooting | Fault Cause |
|---|---|---|
| 1 | The amplifier cannot be started |
|
| 2 | The protection indicator light is on after the amplifier starts |
|
| 3 | No output |
|
| 4 | Low power output |
|
| 5 | There are whistlers | Check if the RCA ground wire is connected. |
| 6 | Distortion |
|
| 7 | Power amplifier is overheating |
|
| 8 | Engine sound | The main reason is that the quality of the RCA signal line is too poor. It is necessary to replace the signal line with good quality and keep it away from the power line. |
| 9 | Engine noise |
|
FCC Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Contact Information
If you encounter any issues while using our products, or should you need any assistance. Feel free to contact our After-Sales Service Team.
They can be reached at andeman@andeman.com
You are also warmly welcome to share any feedback or suggestions about our products, we value it greatly. Thank you for your support and understanding of our products.
