Bose 281590 Manual

The Bose 281590 is a premium audio component designed for high-fidelity sound reproduction. This manual covers the key aspects of safety, features, installation, setup, operation, and troubleshooting for your Bose 281590 system. Please read all instructions carefully before use to ensure optimal performance and safety.

Features at a Glance

Key components: High-performance amplifier, Remote Control, Multiple audio input ports, Speaker outputs, Power connector.

Feature	Description
Audio Inputs	RCA, Optical, and Coaxial digital inputs for versatile source connection
Speaker Outputs	Binding posts for connecting to external speakers
Remote Control	Infrared remote for convenient operation
Power Connector	For AC power connection
Status Indicator	LED display for power and input status
Bass/Treble Controls	For fine-tuning audio output
POWER	Turns unit on/off
INPUT SELECT	Cycles through available audio sources
VOLUME	Adjusts audio output level
MUTE	Instantly mutes sound

Installation

Unpack and inspect all contents. Place the unit on a stable, level surface with adequate ventilation.

1. Connect Speakers: Attach speaker wires to the binding post outputs, observing correct polarity (+/-).
2. Connect Audio Source: Use appropriate cables (RCA, Optical, Coaxial) to connect your audio player to the desired input.
3. Connect to Power: Plug the provided power cord into the AC input connector and then into a wall outlet.

WARNING! Ensure the unit is disconnected from power during installation. Do not place near heat sources or in enclosed spaces without ventilation.

First-Time Setup

After installation, power on the unit and configure initial settings.

1. Power On: Press the POWER button on the front panel or remote.
2. Select Input: Use the INPUT SELECT button to choose the connected audio source.
3. Initial Audio Test: Play audio from your source and adjust volume to a moderate level.
4. Configure Settings: Access the setup menu via the remote to set preferences like default input and display brightness.

CAUTION! Avoid turning the volume to maximum immediately. Start at a low level and increase gradually.

Specifications

• Amplifier Power: 100 Watts per channel (into 8 ohms).
• Frequency Response: 10Hz - 50kHz.
• Total Harmonic Distortion: <0.05%.
• Inputs: 3 x RCA Analog, 1 x Optical, 1 x Coaxial.
• Outputs: Speaker binding posts.
• Remote Control: Infrared, requires 2 x AAA batteries (included).
• Power Requirements: 120V AC, 60Hz.
• Operating Temperature: 41°F to 95°F (5°C to 35°C).

Controls and Settings

Primary controls are located on the front panel and remote control.

Front Panel: POWER, INPUT SELECT, VOLUME knob, MUTE, Status LED.

Remote: POWER, INPUT SELECT, VOLUME Up/Down, MUTE, Numeric Presets (if applicable), MENU.

Settings Menu (accessed via remote MENU button): Input rename, Display brightness, Auto-standby timer, Bass/Treble adjustment, Factory Reset.

Connecting Devices

Connect various audio sources to enjoy your content.

1. CD/DVD/Blu-ray Player: Use RCA (analog) or Optical/Coaxial (digital) cables from player's output to corresponding input on Bose 281590.
2. TV: Connect TV's audio output (optical or RCA) to an input on the Bose unit.
3. Streaming Device: Connect the audio output of your media streamer.

Tip: For best digital audio quality, use optical or coaxial connections. Ensure all devices are powered off when making connections.

Operation

Daily use instructions for the Bose 281590.

1. Power On: Press POWER on unit or remote.
2. Select Source: Press INPUT SELECT until the desired source name appears.
3. Adjust Volume: Use VOLUME knob or remote buttons.
4. Mute: Press MUTE for instant silence; press again or adjust volume to unmute.
5. Bass/Treble Adjustment: Access the audio settings menu via the remote to tailor sound to your preference.
6. Standby Mode: Unit will enter low-power standby after a period of inactivity (if enabled in settings).

WARNING! Do not block ventilation slots. High volume levels over extended periods can cause hearing damage.

Accessibility Features

Remote Control: Large, clearly labeled buttons for ease of use. Audio Presets: Save custom bass/treble settings for different content types (Music, Movie, Voice).

Care & Cleaning

Always disconnect from power before cleaning. Use a soft, dry cloth to wipe the exterior. For stubborn marks, slightly dampen the cloth with water. Do not use abrasive cleaners or solvents.

CAUTION! Never allow liquid to enter any openings. Do not use aerosol sprays near the unit.

Regulatory Information

FCC Compliance: This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Copyright © Bose Corporation. All rights reserved. Bose and the Bose logo are trademarks of Bose Corporation. For support, visit www.bose.com/support or contact Bose Customer Service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power cord not connected	Ensure power cord is securely plugged into unit and wall outlet.
No sound	Incorrect input selected / Muted	Select correct input source. Check if MUTE is activated.
Remote not working	Batteries / Obstructions	Replace remote batteries. Ensure clear line of sight to unit's IR sensor.
Distorted sound	Source volume too high / Faulty cable	Reduce volume at the source device. Check and replace audio cables if necessary.
Unit overheats	Insufficient ventilation	Ensure unit has several inches of clear space on all sides, especially the top and rear.

Reset: Access MENU > Settings > System > Factory Reset to restore default settings.

Service: For service inquiries, contact Bose Customer Support or visit www.bose.com/support.