The Bose Acoustimass Series II is a premium home theater speaker system featuring proprietary Acoustimass module technology for deep, powerful bass without distortion, Direct/Reflecting speaker arrays for spacious sound, and compatibility with most audio/video receivers. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.
Key components: Acoustimass bass module, Direct/Reflecting cube speaker arrays (typically 5 speakers), speaker cables, connection cables, and mounting hardware.
| Feature | Description |
|---|---|
| Acoustimass Module | Proprietary bass technology for deep, distortion-free low frequencies |
| Direct/Reflecting Cube Speakers | Small satellite speakers that deliver both direct and reflected sound for spacious audio |
| Wide Compatibility | Works with most stereo and surround sound receivers (8 ohms impedance) |
| Flexible Placement | Bass module can be placed out of sight; cube speakers can be wall-mounted or placed on shelves |
| High-Performance Drivers | Custom-designed drivers for clear, balanced sound across frequencies |
| Magnetic Shielding | Cube speakers are magnetically shielded to prevent interference with TV displays |
| Color Options | Typically available in black or white to match room decor |
| Proprietary Cables | Included color-coded cables for easy connection to bass module |
Unpack and inspect all components. Verify you have bass module, cube speakers, cables, and mounting hardware.
WARNING! Bass module is heavy; lift with proper technique. Ensure all connections are secure before powering on.
After physical installation, configure your audio/video receiver for proper operation.
CAUTION! Do not place cube speakers directly against walls; maintain recommended distance for proper sound reflection.
Primary controls are on your audio/video receiver. Bass module has no user controls—all adjustments made through receiver.
Bass Module Connections: Input terminals for receiver connection; Output terminals for cube speakers (color-coded: White/Red for front left/right, Green for center, Gray for surround left/right).
Receiver Settings: Speaker size (set to "small"), Crossover frequency (80-100Hz), Subwoofer mode (LFE or LFE+Main), Channel levels, Distance/delay settings.
No Physical Controls: Volume, tone, and balance controlled exclusively through connected receiver.
Compatible with stereo receivers, surround sound receivers, and most home theater systems.
Tip: Use color-coded connections to avoid errors. White/red for front left/right, green for center, gray for surrounds.
All audio adjustments made through your receiver. No standalone controls on speakers.
WARNING! Do not exceed receiver's recommended power output. Distortion can damage speakers.
Proper placement is critical for optimal Acoustimass performance.
Bass Module: Place on floor against wall or in room corner. Do not place inside enclosed cabinet. Keep at least 2 inches from walls for ventilation.
Front Cube Speakers: Place at ear level when seated, angled toward listening position. Left/right speakers should form equilateral triangle with main listening position.
Center Channel: Place directly above or below TV screen, centered horizontally. Angle toward listening position.
Surround Speakers: Place slightly above ear level, to sides or slightly behind listening position. Can be wall-mounted or placed on stands.
Distance: Maintain at least 12 inches between cube speakers and walls for proper Direct/Reflecting sound.
Unplug from receiver before cleaning. Use dry, soft cloth only for cube speakers and bass module.
Cleaning Cube Speakers: Use soft, dry cloth. For stubborn marks, slightly dampen cloth with water only. Do not use chemicals or abrasives.
Bass Module: Vacuum vents occasionally to prevent dust buildup. Ensure ventilation openings remain unobstructed.
Cables: Check connections periodically for corrosion or looseness. Replace damaged cables immediately.
CAUTION! Never use liquids, solvents, or aerosol cleaners on speakers. Do not expose to direct sunlight or extreme temperatures.
FCC Compliance: This device complies with Part 15 of FCC Rules. Operation subject to conditions: (1) device may not cause harmful interference, (2) device must accept any interference received. Copyright © Bose Corporation. All rights reserved. Acoustimass is a registered trademark of Bose Corporation. For support, visit www.bose.com or contact Bose Customer Service at 1-800-999-2673.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No sound from any speaker | Receiver off/incorrect input | Ensure receiver is on and correct input selected; check all connections |
| No sound from one speaker | Loose/damaged cable | Check cable connections at both ends; swap with working speaker to isolate issue |
| Weak or no bass | Receiver settings/placement | Check receiver bass management settings; ensure bass module is powered and properly connected |
| Distorted sound | Overdriven/incorrect settings | Reduce volume; check receiver power output matches speaker specifications |
| Hum or buzz | Ground loop/interference | Ensure all components plugged into same power circuit; check cable routing away from power cords |
| One cube speaker not working | Faulty cable or connection | Test cable with another speaker; check connections at bass module and speaker |
Reset: Power off entire system, disconnect all cables, wait 60 seconds, then reconnect following installation instructions.
Service: For persistent issues, contact Bose Customer Service at 1-800-999-2673 or visit www.bose.com/support