ARC Audio IDX, XEQ User Manual

7-BAND EQUALIZER WITH DIRECT SUB INPUT

3-WAY CROSSOVER WITH SUB SONIC FILTER

MANUAL AND USER GUIDE

XEQ

Front panel Sub output level control
Variable Sub woofer Crossover
Variable Sub woofer Crossover
4-Layer PC Board with SMT Devices
Direct "Sub Input"
8 Volt RMS Output
Input Clip Indicator for Easy Gain Setting

IDX

Fully Variable Band Pass Crossover
Sub Sonic Filter
Variable Sub Phase Shift
4-Layer PC Board with SMT Devices
Independent Front and Rear Inputs
8 Volt RMS Output
Output Clip Indicator for Easy Gain Setting

XEQ
Table of Contents

XEQ

XEQ IDX

Introduction
Features
Advanced Features
Installation Information
Connections and Controls
Detailed Review of Controls

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System Examples

2-Way with Direct Sub Input

2-Way with Fading Front and Rear

Specifications

IDX Manual

Introduction

Welcome to the Arc Audio family of performance signal processors. A blend of Arc Audio's
lengthy experience in performance car audio design combined with our highly skilled
engineering staff. You are now the proud owner of the IDX or XEQ. A unique combination
of the highest quality analog components and precision engineering. Whether you are a
competitor or simply enjoy faithfully reproduced music, you will definitely appreciate how
these products make your system sound. These components aren't the easiest to
understand and use. They require a good understanding of audio and the terms and
language used to describe it. You don't have to be a genius but a bit of experience and
common sense will go a long way. This manual is written in 2 parts IDX and XEQ. Each of
these units can be used separately or together to become the Control Center. Before you
begin read this manual cover to cover (does anyone ever really read the manual?).
Carefully design your system and decide on your basic crossover points. This will give you
a good starting point and a reference to return to when you begin final tuning. If at any
point you begin to feel overwhelmed, return to your local Arc Audio dealer and let the
trained professionals install or tune it for you.

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Features:

1. 7 Band Equalizer

2. Variable Sub woofer Crossover

3. Front panel sub woofer output level control

4. 8 Volt RMS Output

5. Direct "Sub Input" for Head units with Sub woofer Output

6. Sub EQ Bypass

7. Input Clip Indicator for Easy Gain Setting

8. 4-Layer PC Board with SMT Technology

9. Front and Rear Fader

10. Quiet Mute for Noise Free Turn-on's

Advanced Features

Direct Sub Input

The XEQ is equipped with a "Direct Sub Input" That allows you to take
full advantage of modern head units with Special features like, Sub
Output, Time Alignment, Bass Restoration, And Sub Crossover. You paid
for these features. We feel you should be able to use them and still enjoy
the benefits of a high quality in-dash EQ. By connecting your head unit
Sub out to the "Direct Input" All these features still work. All the signal
from your Sub out is directed to the Master Volume then to the Sub Level
and Sub Crossover. With the XEQ you get the best or both worlds.
Advanced System Controls and the full benefit of a High quality 7 Band
EQ.

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XEQ

XEQ

2

Installation Information

The Connections and Controls

1. The XEQ needs to be installed in the signal path between your source
unit and your external amplifier(s).

2. Physically mount the XEQ near the drivers listening position. Make sure
the EQ is kept clean, cool, and dry. Don't mount it under a cup holder or in
a storage box were it will be covered with the stuff that always seems to
collect in our cars.

3. . Hook up +12 volt power, ground, and remote turn-on. Make sure the
ground is perfectly clean and tight. Remove all the paint and under coat
before you screw it down. Don't trust the stock ground. Make a new one.

4. Connect the front output of you head unit to the front input of the XEQ.

5. Connect the Sub out to the "Direct Sub Input". This is optional. Make
sure the switches on top are configured correctly.

6. Don't fix the EQ permanently into place until your gains have been set.

7. Adjust the "Input Level" control on your XEQ to match the source unit's
output. With the head unit volume at about 75% of max, move the gain
switch from 0dB to +6 dB. Look at the input clip light on the front of the
EQ. It should NOT be on. It may flash occasionally. If it doesn't flash, move
the gains to +12dB. Unless you have a very low output head unit the clip
light will surely be flashing now. If it is move back to +6dB or +0dB.

8. Now the fun begins. With the EQ still out, begin adjusting the sub
crossover. Try to find a good neutral. You can always change the level
later.

1. Front Output

2. Rear Output

3. Input

4. Sub "Direct Input"

5. Sub Output

6. Power Connector

7. Input Gain

8. Sub Input Gain

9. Sub Crossover Switch

10. Sub "Direct Input" Switch

11. Sub EQ Bypass

12. Sub Frequency Control

13. Master Volume

14. Clip Indicator

15. EQ Frequency Controls

16. Fader

17. Sub Volume

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XEQ IDX

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9. Start tweaking. It's amazing how much a tiny adjustment to your EQ
frequency can change your system.

10. Enjoy the results

XEQ

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XEQ

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XEQ

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