Contents & Introduction

Contents & Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4

Installation in Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Controls and Connections . . . . . . . . . . . . . . . . . . . . . . . 6

Accessing the Control Panel

Control Panel

Rear Connection Panel . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2-Channel Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Multi-Channel Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2-Channel/Multi-Channel Mode . . . . . . . . . . . . . . . . . . 11

2-Channel Mode Using Speaker Level Inputs . . . . . . . . 12

2-Channel Mode With 2-Channel Output . . . . . . . . . . 13

Why the Filters Are Not Equal

Sub Out—Using Multiple Subwoofers . . . . . . . . . . . . . 14

AC Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Replacing the Fuse

Break-In

Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Listening Position

Installing In A Cabinet

Ask Your Dealer

Enjoy Yourself

Room Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Your Room

Terminology

Solid Footing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Home Theater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

MartinLogan Exclusives . . . . . . . . . . . . . . . . . . . . . . . . . 20

BalancedForce™ For Cleaner Bass

TriLinear™ Configuration

Servo-Controlled Dynamic Drivers

Proprietary Switching Amplifier

25Hz & 50Hz Level Control

Frequently Asked Questions & Troubleshooting . . . . 21

Dimensioned Drawings. . . . . . . . . . . . . . . . . . . . . . . . . 22

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Specifications

Warranty and Registration

Serial Number

Service

Glossary of Audio Terms . . . . . . . . . . . . . . . . . . . . . . . . 24 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Congratulations! You have invested in one of the world's premier subwoofers.

The MartinLogan Descent i represents the culmination of an intensive, dedicated research program directed toward creating a world class reference subwoofer using advanced technologies and without compromising dura- bility, reliability, craftsmanship or aesthetics.

The Descent i subwoofer uses three custom 10-inch high-excursion drivers in a BalancedForce™, TriLinear™ configuration, which dramatically reduces cabinet vibrations, allowing deep, tight, well-defined bass. Servo- control woofer technology minimizes distortion. Three proprietary digital amplifiers drive the output stage with precision and extremely high efficiency. Low-pass filtering and phase control have been designed to make integrat- ing the Descent i subwoofer with both MartinLogan and non-MartinLogan products both seamless and simple.

The materials in your new Descent i subwoofer are of the highest quality and will provide years of enduring enjoyment and deepening respect. The cabinetry is constructed from the highest quality composite material for acoustical integrity.

This User's Manual will explain in detail the operation of your Descent i subwoofer and the philosophy applied to its design. A clear understanding will help you obtain max- imum performance and pleasure from this most exacting subwoofer system.

In accordance with the European Union WEEE (Waste Electrical and Electronic Equipment) directive effective August 13, 2005, we would like to notify you that this product may contain regulated materials which upon disposal, according to the WEEE directive, require spe- cial reuse and recycling processing.

For this reason MartinLogan has arranged with our distrib- utors in European Union member nations to collect and recycle this product at no cost to you. To find your local distributor please contact the dealer from whom you pur- chased this product, email info@martinlogan.com or visit the distributor locator at www.martinlogan.com.

Please note, only this product itself falls under the WEEE directive. When disposing of packaging and other related shipping materials we encourage you to recycle these items through the normal channels.

4Contents & Introduction