Bose Redline Cube Speakers Manual

The Bose Redline Cube Speakers are premium compact audio speakers designed for high-fidelity sound reproduction. Featuring advanced acoustic technology, they deliver clear, powerful audio suitable for home theater systems, music listening, and multimedia applications. Below are key sections covering safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Connections 6. Connecting to Audio Sources 7. Operation and Sound Modes 8. Care & Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Compact cube-shaped speaker enclosures, high-excursion drivers, magnetic shielding, and premium connection terminals.

Feature	Description
Driver Technology	High-excursion woofers and tweeters for full-range sound
Enclosure Design	Acoustically tuned cube-shaped cabinet
Magnetic Shielding	Prevents interference with nearby video displays
Input Terminals	Gold-plated binding posts for secure wire connection
Impedance	8 ohms nominal for compatibility with most amplifiers
Frequency Response	Extended range for accurate audio reproduction
Power Handling	Handles moderate to high power from amplifiers
Finish Options	Available in black, white, and silver finishes
Grille Design	Removable acoustic cloth grille
Mounting Options	Optional wall brackets and stands available

Installation

Unpack and inspect contents. Choose optimal placement for sound quality.

Position speakers: Place on stable surfaces at ear level when seated.
Connect speaker wires: Strip insulation, connect to amplifier/receiver terminals.
Secure connections: Ensure positive/negative terminals match amplifier polarity.
Mounting: Use optional brackets for wall mounting if desired.

WARNING! Ensure amplifier is turned off during connection to prevent damage. Keep speakers away from heat sources and moisture.

First-Time Setup

Connect to audio system and configure for optimal performance.

Connect to amplifier: Use quality speaker wire (16-gauge or thicker recommended).
Set amplifier volume: Start at low volume and gradually increase.
Position adjustment: Experiment with placement for best stereo imaging.
Break-in period: Allow 24 hours of moderate use for optimal sound quality.

CAUTION! Do not exceed maximum power rating of speakers. Ensure proper ventilation around amplifier.

Specifications

Driver Size: Custom-designed woofers and tweeters.
Frequency Response: 80Hz - 20kHz (±3dB).
Nominal Impedance: 8 ohms.
Recommended Amplifier Power: 10-100 watts per channel.
Sensitivity: 88dB (2.83V/1m).
Crossover Frequency: 2.8kHz.
Dimensions: 6.5" H x 6.5" W x 6.5" D (each speaker).
Weight: 4.5 lbs (each speaker).
Finish: High-gloss polymer cabinet.
Warranty: 5-year limited warranty.

Controls and Connections

Speakers feature binding post terminals for secure wire connection. No onboard controls - all adjustments made through connected amplifier/receiver.

Terminal Connections: Gold-plated binding posts accept bare wire, spade lugs, or banana plugs (where permitted).

Polarity: Ensure positive (+) terminal connects to amplifier's positive output. Negative (-) to negative output for proper phase alignment.

Wire Gauge: Use 16-12 AWG speaker wire for runs up to 50 feet. Thicker wire recommended for longer distances.

Connecting to Audio Sources

Connect to various audio systems: Stereo receivers, home theater processors, or multi-room audio systems.

Stereo System: Connect left/right channels to corresponding amplifier outputs.
Home Theater: Use as front, center, or surround channels in 5.1/7.1 systems.
Multi-room: Connect to impedance-matching volume controls or switchers.
Bi-wiring: Optional bi-wire capability for enhanced performance.

Tip: Keep speaker wires away from power cables to prevent interference.

Operation and Sound Modes

Optimize performance through proper placement and amplifier settings.

Placement: Position speakers at equal distance from listening position.
Toe-in: Angle speakers slightly inward toward listening area.
Distance from walls: Place 1-2 feet from rear wall for optimal bass response.
Amplifier settings: Use flat EQ initially; adjust tone controls to preference.
Volume levels: Operate within amplifier's clean power range.
Room acoustics: Add acoustic treatments for challenging room environments.
Break-in: Sound quality improves with initial hours of use.

WARNING! Do not drive speakers into distortion. Reduce volume if sound becomes harsh or distorted.

Care & Maintenance

Regular care ensures long-term performance and appearance.

Cleaning: Use soft, dry cloth for cabinet. Mild detergent solution for stubborn marks.
Grille care: Remove grille carefully; vacuum with brush attachment if needed.
Terminal maintenance: Keep connections clean and tight.
Storage: Keep in original packaging if not in use for extended periods.

CAUTION! Do not use abrasive cleaners or solvents. Avoid liquid contact with drivers.

Regulatory Information

FCC Compliance: Class B digital device compliant with Part 15 regulations. CE marked for European compliance. RoHS compliant. Copyright © Bose Corporation. All rights reserved. Bose and Redline are registered trademarks of Bose Corporation. For support, visit www.bose.com or contact 1-800-999-2673.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound from speaker	Loose connections or amplifier issue	Check all wire connections; verify amplifier is on and set to correct input.
Distorted sound	Overdriven amplifier or damaged speaker	Reduce volume; check for damaged driver components.
Intermittent sound	Faulty wire or connection	Inspect and replace speaker wire; ensure terminals are tight.
Uneven sound between speakers	Balance control or placement issue	Check amplifier balance control; ensure equal placement and connections.
Hum or buzz	Ground loop or interference	Check grounding of all components; separate audio and power cables.

Service: For persistent issues, contact Bose customer service at 1-800-999-2673 or visit www.bose.com/support.