Bose System 321 Manual

The Bose System 321 is a premium home theater speaker system designed for immersive audio experiences, featuring a powered Acoustimass module, two Direct/Reflecting cube speakers, a universal media center, and a remote control. It supports various audio sources including DVD/CD players, TVs, and gaming consoles. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Using the Media Center 8. Audio Settings & Optimization 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Powered Acoustimass module, Two Direct/Reflecting cube speakers, Universal media center, Remote control, Connection cables.

Feature	Description
Acoustimass module	Powered bass unit for deep, clear low frequencies
Direct/Reflecting cube speakers	Provide spacious, room-filling sound
Universal media center	Central hub for audio source connections and control
Remote control	For system power, volume, source selection, and mute
Audio inputs	RCA, optical digital, and coaxial digital inputs
Speaker outputs	Connections for left and right cube speakers
POWER	Turns system on/off
VOLUME	Adjusts audio level
MUTE	Instantly silences audio
INPUT SELECT	Cycles between connected audio sources

Installation

Unpack and inspect all components. Choose optimal speaker placement.

Position Acoustimass module: Place near wall or corner for enhanced bass response.
Place cube speakers: Mount on walls or shelves at ear level when seated.
Connect speakers: Use provided cables to connect cubes to media center.
Connect media center: Link to power outlet and audio sources.
Plug into AC power.

WARNING! Ensure proper ventilation around components. Do not place objects on top of speakers.

First-Time Setup

Power on system; follow initial configuration steps.

Connect audio sources: Use RCA or digital cables to connect DVD player, TV, etc.
Power sequence: Turn on media center first, then connected devices.
Test audio: Play source material; adjust volume to comfortable level.
Configure settings: Use remote to set default input and audio preferences.

CAUTION! Ensure all connections are secure before powering on.

Specifications

System Type: 2.1 channel home theater speaker system.
Acoustimass Module: Powered, frequency response: 38Hz - 200Hz.
Cube Speakers: Full-range drivers, magnetic shielding.
Inputs: RCA analog, optical digital, coaxial digital.
Output Power: Total system power: 200 watts RMS.
Remote Control: Infrared, requires 2 AAA batteries.
Power Source: 120V AC, 60Hz.
Dimensions: Acoustimass module: 14.5" H x 10.5" W x 16" D.

Controls and Settings

Primary control via remote or media center front panel. Media Center: POWER, INPUT SELECT, STATUS LED. Remote: POWER, VOLUME UP/DOWN, MUTE, INPUT SELECT, TEST TONE.

Audio Settings: Bass level adjustment via remote. Input priority: Set default source. Auto-standby: Configurable power saving mode.

Connecting Devices

Supports multiple audio sources: DVD/CD players, TVs, gaming consoles, streaming devices.

Turn off all devices before connecting.
Use appropriate cables: RCA for analog, optical/coaxial for digital.
Connect to media center inputs: Label inputs for easy identification.
Select input: Use INPUT SELECT on remote or media center.

Tip: For best digital audio quality, use optical connection when available.

Using the Media Center

Central control unit for all system functions.

Power on: Press POWER on remote or media center.
Select source: Press INPUT SELECT until desired source is active.
Adjust volume: Use VOLUME buttons on remote.
Mute audio: Press MUTE for instant silence.
Standby mode: System enters low-power mode after period of inactivity.

WARNING! Do not block ventilation openings on media center.

Audio Settings & Optimization

Bass level adjustment: Press and hold BASS button on remote while adjusting volume. Room adaptation: Use test tone for optimal speaker placement. Input customization: Rename inputs for easy identification.

Care & Cleaning

Unplug system before cleaning. Use soft, dry cloth for exterior surfaces. For stubborn stains, dampen cloth slightly with water.

CAUTION! Never use abrasive cleaners or solvents. Do not allow moisture to enter any openings.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Bose Corporation. All rights reserved. For support, visit www.bose.com or contact 1-800-999-2673.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound from system	Power/connections	Ensure system is powered on; check all cable connections; verify source is playing.
Remote not working	Batteries/obstructions	Replace batteries; ensure clear path to media center IR sensor.
Low bass output	Placement/settings	Reposition Acoustimass module; adjust bass level via remote.
Distorted sound	Volume level/connections	Reduce volume; check for loose cables; ensure proper input selection.
System won't power on	Power source	Check power outlet; ensure power cord is securely connected.

Reset: Unplug system for 60 seconds, then reconnect power.

Service: 1-800-999-2673; www.bose.com