ARC Audio XDi User Manual

ARC AUDIO WARRANTY
ARC AUDIO warranties all new XDi Amplifiers against defects in
material and workmanship for a period of ONE (1) YEAR from the original
date of purchase. This warranty is not transferable and applies only to the
original retail purchaser of the product from an authorized ARC AUDIO
retailer. Upon inspection by ARC AUDIO should services be necessary under
this warranty for any reason due to manufacture defects ARC AUDIO will, at
its sole discretion, repair or replace the defective product with new or similar
conditioned product at no charge.
THIS WARRANTY DOES NOT COVER INSTALLATION OR
DAMAGE RESULTING FROM ACCIDNT, MISUSE, ABUSE,
IMPROPER WIRING, OPERATION OUTSIDE OF THE
MANUFACTURES RECOMMENDATIONS OR SPECIFICATIONS,
OR AGAINST INSTRUCTIONS IN THE OWNERS MANUAL. IN
ADDITION ANY PRODUCT THAT HAS BEEN OPENED,
TEMPERED WITH OR MODIFIED, OR IF ANY SERIAL NUMBERS
HAVE BEEN REMOVED WILL NOT BE COVERED BY ANY PART
OF THE MANUFACTURES WARRANTY.
All warranty returns should be sent to ARC AUDIO freight prepaid
and must be accompanied by proof of purchase (a copy of the original sales
receipt). Direct returns from consumers or non-authorized retailers will be
refused unless specifically authorized by ARC AUDIO with a valid return
authorization number.
All warranty returns should be packed in original packaging and
must be accompanied by a copy of the original sales receipt. Product
damaged in shipment will not be covered under this warranty. The
customer or retailer may choose to have this damage repaired at the
normal “Out of Warranty” repair cost.
In no event will ARC AUDIO be liable for incidental, consequential,
or other damages resulting from the use of this product, this includes but is
not limited to, damage of hearing, property or person, damage based upon
inconvenience or on loss of use of the product, and to the extent permitted by
law, damages for personal injury. This warranty gives you specific legal
rights, and you may have other rights, which vary from state to state. This
warranty applies to products sold and used in the United States of America. In
all other countries please contact your distributor
HIGH PERFORMANCE AUDIO AMPLIFIER
®
®
Full Range
Hybrid Class D
REV 1.00

ARC Audio XDi Specifications

General

Series	XDi
Amplifier Class	Class D
Frequency Response	10Hz - 30kHz
Signal to Noise Ratio	>95dB
Input Sensitivity	0.2V - 6V

Summary

ARC AUDIO WARRANTY

Warranty Terms and Conditions

Details warranty coverage, exclusions, transferability, and manufacturer's responsibilities for defects.

Product Return Policy

Outlines the procedure for returning products for warranty service, including proof of purchase and authorization requirements.

Amplifier Introduction and Operation

Amplifier Features

Highlights the Full Range Class D architecture for improved efficiency and lower heat output.

Important Warnings

Alerts users to potential hearing damage from high volumes and local laws governing audio system loudness.

Installation Preparation

Advises on selecting suitable installation locations and consulting professionals for complex electrical work.

Powering the Amplifier

Explains the need for adequate vehicle electrical system performance and proper wiring for high-current audio amplifiers.

Grounding Best Practices

Emphasizes the critical importance of a secure, low-resistance chassis ground connection for optimal performance.

Cable Routing and Safety

Provides guidance on running power and signal cables safely, using grommets, and installing fuses.

Setting Amplifier Gains

Explains the input stage rating and the principle of setting gains relative to head unit output for optimal performance.

Amplifier Controls and Tuning

Input Gain Adjustment

Details how to adjust input sensitivity (gain) for optimal system balance and noise reduction.

Crossover Frequency Selection

Explains the function of crossovers in filtering frequencies for different speaker types.

Phase Shift Control

Describes how to adjust speaker timing for better bass response and sound staging.

Bass Boost Features

Covers the use and adjustment of Quasi Parametric Bass EQ for enhanced low-frequency response.

Subsonic Filter Usage

Explains the role of the subsonic filter in removing very low frequencies to protect woofers.

Speaker Output Connections

Guides on making secure speaker connections to the amplifier terminals and avoiding short circuits.

Installation Procedure

Step-by-Step Installation Guide

Provides a detailed, numbered sequence for installing the amplifier, from battery disconnection to final checks.

Amplifier Specifications

Power Output Ratings

Lists power output values for different models at various impedances and bridged configurations.

Performance Metrics

Details Total Harmonic Distortion, Signal-to-Noise Ratio, and Gain Range for amplifier performance.

Frequency and Bass Controls

Covers the crossover range, frequency range, and bass boost characteristics of the amplifiers.

XD1803 Wiring Diagrams

XD1803 4-Channel Stereo Wiring

Illustrates the wiring for a 4-channel stereo setup with a subwoofer on the XD1803 amplifier.

XD1803 2-Channel Stereo Wiring

Shows the wiring for a 2-channel stereo setup with a subwoofer on the XD1803 amplifier.

XDi408 Wiring Diagrams

XDi408 4-Channel Stereo Wiring

Details the wiring for a 4-channel stereo setup for the XDi408 amplifier.

XDi408 Mono Subwoofer Wiring

Illustrates the wiring for a high-pass stereo setup with a mono subwoofer for the XDi408 amplifier.

XDi805 Wiring Diagrams

XDi805 4-Channel Stereo Wiring

Shows the wiring diagram for a 4-channel stereo setup with a subwoofer for the XDi805 amplifier.

XDi805 2-Channel Stereo Wiring

Provides the wiring diagram for a 2-channel stereo setup with a subwoofer for the XDi805 amplifier.

Subwoofer Amplifier Operation and Wiring

Subwoofer Amplifier Controls

Explains the operation of controls like Subsonic Filter and Bass Boost on subwoofer amplifiers.

Subwoofer Amplifier Connections

Details typical power wiring connections and impedance configurations for subwoofer amplifiers.

General Amplifier Installation and Dimensions

Power Wiring Guidelines

Offers advice on wire gauge, fuse placement, and length for power connections to all models.

XDi Series Model Dimensions

Lists the physical dimensions for various XDi amplifier models for installation planning.