High Input Amp Wiring Diagram – An Ultimate Guide

High input amps are a popular choice among car audio enthusiasts who want to achieve a high-quality sound system in their vehicle. However, wiring these amps can be challenging, especially for those who are not familiar with car audio systems. In this article, we will provide you with a comprehensive guide on high input amp wiring diagram, from understanding the basics to the step-by-step process of wiring a high input amp.

Table of Contents

  1. Understanding Basics of High Input Amps
  2. Components of a High Input Amp Wiring Diagram
  3. Step-by-Step Process of Wiring a High Input Amp
  4. FAQ

Understanding Basics of High Input Amps

A high input amp, also known as a speaker-level input amp, is designed to accept an audio signal from a factory or aftermarket head unit that does not have a dedicated preamp output. This type of amp is ideal for those who want to upgrade their car audio system without having to replace the head unit.

High input amps are available in various configurations, including two-channel, four-channel, and monoblock amps. Two-channel amps are ideal for powering a pair of speakers, while four-channel amps can power four speakers or two speakers and a subwoofer. Monoblock amps are designed to power a single subwoofer.

High input amps typically have a built-in high-pass filter that can be used to eliminate low-frequency signals that can cause distortion and damage the speakers. Some high input amps also have a bass boost feature that can increase the bass output of the speakers.

Before wiring a high input amp, it is important to understand the basic components of a high input amp wiring diagram.

Components of a High Input Amp Wiring Diagram

A high input amp wiring diagram consists of the following components:

Head Unit

The head unit is the primary source of the audio signal. In a high input amp installation, the head unit’s speaker output wires are used to feed the audio signal to the amp.

High Input Amp

The high input amp is the device that amplifies the audio signal received from the head unit. It typically has speaker-level inputs that are used to accept the audio signal.

Speaker Wires

The speaker wires are used to connect the high input amp to the speakers. They carry the amplified audio signal from the amp to the speakers.

Power Wires

The power wires are used to connect the high input amp to the car’s battery. They provide the necessary power for the amp to function.

Step-by-Step Process of Wiring a High Input Amp

Wiring a high input amp may seem daunting, but it’s actually a straightforward process. Here are the steps to follow:

Step 1: Gather the Required Materials

Before starting the installation process, you will need to gather the required materials. Here’s what you’ll need:

  • High input amp
  • Speaker wires
  • Power wires
  • Fuse holder and fuse
  • Wire stripper
  • Crimp connectors
  • Ring terminals
  • Electrical tape or heat shrink tubing

Step 2: Disconnect the Battery

Before starting any electrical work, it is important to disconnect the car’s battery to prevent any accidental short circuits.

Step 3: Connect the Power Wires

The power wires are typically red and black. The red wire should be connected to the positive terminal of the car battery, while the black wire should be connected to the negative terminal. Use ring terminals and crimp connectors to make a secure connection. Be sure to fuse the power wire close to the battery using a fuse holder.

Step 4: Connect the Speaker Wires

The speaker wires are typically color-coded. Connect the wires from the high input amp to the speakers using crimp connectors. Be sure to connect the positive wire to the positive terminal and the negative wire to the negative terminal.

Step 5: Connect the High Input Amp to the Head Unit

Connect the speaker-level input wires from the high input amp to the head unit’s speaker output wires using crimp connectors. Be sure to connect the positive wire to the positive terminal and the negative wire to the negative terminal.

Step 6: Test the System

Once all the connections have been made, it’s time to test the system. Reconnect the car battery and turn on the head unit. If the system is working correctly, you should hear sound coming from the speakers.

FAQ

Q: What is the difference between a high input amp and a low input amp?

A: A low input amp, also known as a line-level input amp, is designed to accept an audio signal from a head unit’s preamp output. A high input amp, on the other hand, is designed to accept an audio signal from a head unit’s speaker output wires.

Q: Do I need to use a high-pass filter with a high input amp?

A: Yes, it is recommended to use a high-pass filter with a high input amp to eliminate low-frequency signals that can cause distortion and damage the speakers.

Q: Can I use a high input amp with a factory head unit?

A: Yes, a high input amp can be used with a factory head unit that does not have a dedicated preamp output.

Q: How many speakers can a high input amp power?

A: The number of speakers a high input amp can power depends on the amp’s configuration. Two-channel amps can power a pair of speakers, while four-channel amps can power four speakers or two speakers and a subwoofer. Monoblock amps are designed to power a single subwoofer.

Q: Can a high input amp be used with a subwoofer?

A: Yes, a high input amp can be used with a subwoofer. However, it is recommended to use a dedicated subwoofer amp for optimal performance.

Q: Can I install a high input amp myself?

A: Yes, installing a high input amp is a straightforward process that can be done by anyone with basic electrical knowledge. However, if you are unsure about any aspect of the installation process, it is recommended to seek professional help.

Conclusion

Wiring a high input amp may seem like a daunting task, but with the right guide, it’s a straightforward process that can be done by anyone. In this article, we have provided you with a comprehensive guide on high input amp wiring diagram, from understanding the basics to the step-by-step process of wiring a high input amp.

Whether you’re an experienced car audio enthusiast or a novice, this guide has everything you need to know to wire a high input amp and achieve the high-quality sound you’ve always wanted in your vehicle.