1. Introduction
Thank you for choosing the Audiopipe EQ-5-V15 5-Band Graphic Equalizer. This device is designed to provide precise control over your audio system's frequency response, allowing you to fine-tune your sound for optimal listening pleasure. This manual provides essential information for the proper installation, operation, and maintenance of your equalizer.
2. Safety Information
- Always disconnect the vehicle's battery negative terminal before beginning any installation.
- Ensure all wiring is securely connected to prevent short circuits and damage to the unit or vehicle.
- Do not expose the unit to moisture or extreme temperatures.
- Mount the unit in a location where it will not interfere with vehicle operation or safety features.
- Refer to a professional installer if you are unsure about any part of the installation process.
3. Package Contents
Please check the contents of your package. It should include:
- Audiopipe EQ-5-V15 5-Band Graphic Equalizer
- Mounting hardware (screws, brackets)
- Power harness
- User Manual (this document)
4. Product Overview
The Audiopipe EQ-5-V15 features a 5-band graphic equalizer with a 15V audio signal line driver, designed for enhanced audio control in your vehicle. Below are diagrams illustrating the front panel controls and rear panel connections.
Figure 1: Top view of the Audiopipe EQ-5-V15 5-Band Graphic Equalizer, showing the main controls and switches.
4.1 Front Panel Controls
Figure 2: Close-up view of the front panel controls, including fader, master volume, subwoofer level, and equalization bands.
- FADER: Adjusts the balance between front and rear speakers.
- MASTER: Controls the overall output volume of the equalizer.
- SUB: Adjusts the output level of the subwoofer channel.
- SUB BASS: Equalization control for sub-bass frequencies.
- MID BASS: Equalization control for mid-bass frequencies.
- MID: Equalization control for mid-range frequencies.
- HIGH-MID: Equalization control for high-mid frequencies.
- TREBLE: Equalization control for high frequencies.
- INPUT LEVEL (1/2): Selects between Input 1 and Input 2 sources.
- SUBWOOFER (OFF/50Hz/80Hz/120Hz): Selects the low-pass crossover frequency for the subwoofer output.
- COLOR (BLUE/RED): Changes the illumination color of the controls.
- FRONT/REAR (OFF/80Hz/120Hz/200Hz): Selects the high-pass crossover frequency for the front/rear outputs.
4.2 Rear Panel Connections
Figure 3: Rear view of the Audiopipe EQ-5-V15, showing RCA input/output jacks and power connections.
- INPUT 1 (L/R RCA): Primary audio input from your head unit or source.
- INPUT 2 (L/R RCA): Secondary audio input for an additional source.
- SUB OUT (L/R RCA): Output for connecting to a subwoofer amplifier.
- REAR OUT (L/R RCA): Output for connecting to a rear speaker amplifier.
- FRONT OUT (L/R RCA): Output for connecting to a front speaker amplifier.
- +12V: Positive power connection (constant 12V).
- REM: Remote turn-on connection from your head unit.
- GND: Ground connection (to vehicle chassis).
5. Installation and Setup
Proper installation is crucial for optimal performance. Follow these steps carefully:
5.1 Mounting
- Choose a dry, secure location away from direct heat or moisture.
- Ensure adequate ventilation around the unit.
- Use the provided mounting hardware to secure the equalizer firmly.
5.2 Wiring Connections
- Power Connection (+12V): Connect the +12V wire from the equalizer to a constant 12V power source in your vehicle (e.g., directly to the battery with an inline fuse, or a fused accessory wire).
- Ground Connection (GND): Connect the GND wire to a clean, unpainted metal surface of the vehicle chassis. Ensure a good electrical connection.
- Remote Turn-On (REM): Connect the REM wire to the remote output wire from your head unit. This will turn the equalizer on and off with your head unit.
- Audio Inputs (INPUT 1 / INPUT 2): Connect the RCA output cables from your head unit to either INPUT 1 or INPUT 2 on the equalizer. If using two sources, connect them accordingly.
- Audio Outputs (FRONT OUT / REAR OUT / SUB OUT): Connect the RCA output cables from the equalizer to the corresponding input jacks on your amplifiers (front, rear, and subwoofer amplifiers).
6. Operating Instructions
Once installed, follow these steps to operate your Audiopipe EQ-5-V15:
- Power On: Turn on your head unit. The equalizer should power on automatically via the remote turn-on connection.
- Input Selection: Use the INPUT LEVEL switch to select between Input 1 or Input 2, depending on which source you are using.
- Master Volume: Start with the MASTER volume control at a low setting. Gradually increase it to a comfortable listening level.
- Fader Adjustment: Adjust the FADER control to balance the sound between your front and rear speakers.
- Subwoofer Level: Use the SUB control to set the desired output level for your subwoofer.
- Crossover Settings:
- Set the SUBWOOFER switch to the desired low-pass frequency (50Hz, 80Hz, or 120Hz). This filters out frequencies above the selected point for the subwoofer.
- Set the FRONT/REAR switch to the desired high-pass frequency (80Hz, 120Hz, or 200Hz). This filters out frequencies below the selected point for your full-range speakers.
- Equalization: Adjust the SUB BASS, MID BASS, MID, HIGH-MID, and TREBLE controls to fine-tune the sound to your preference. Each control allows you to boost or cut frequencies within its specific band.
- Color Selection: Use the COLOR switch to choose between blue or red illumination for the controls.
7. Maintenance
The Audiopipe EQ-5-V15 requires minimal maintenance. Keep the unit clean and dry.
- Wipe the exterior with a soft, dry cloth.
- Do not use harsh chemicals or abrasive cleaners.
- Ensure all connections remain secure over time.
8. Troubleshooting
If you experience issues with your equalizer, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to the unit | Blown fuse; Loose power/ground/remote wire; Head unit not on | Check inline fuse; Verify all power connections; Ensure head unit is powered on and remote wire is connected. |
| No sound output | Incorrect input/output connections; Master volume too low; Input selected incorrectly | Check all RCA connections; Increase master volume; Verify correct input (Input 1/2) is selected. |
| Distorted sound | Input signal too high; Amplifier gain set too high; Equalizer settings too extreme | Reduce head unit volume; Adjust amplifier gain settings; Reset equalizer bands to flat and adjust gradually. |
| Humming or noise | Poor ground connection; RCA cables too close to power wires; Ground loop | Ensure a solid ground connection; Reroute RCA cables away from power wires; Consider a ground loop isolator. |
9. Specifications
- Model Number: EQ-5-V15
- Item Weight: 1.75 pounds
- Product Dimensions: 9 x 8 x 2 inches
- Body Material: Metal
- Connector Type: RCA
- Equalizer Bands: 5-Band Graphic
- Line Driver Voltage: 15V
10. Warranty and Support
Audiopipe products are designed for reliability and performance. For warranty information or technical support, please refer to the warranty card included with your product or visit the official Audiopipe website. Keep your purchase receipt as proof of purchase.