Bose GS 123 Manual

The Bose GS 123 is a high-performance audio system designed for professional and home use, featuring advanced acoustic technology, multiple input options, and user-adjustable sound profiles. Below are key sections covering safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Advanced speaker array, Remote Control, Multiple audio input ports, Power connector, Headphone jack, EQ adjustment controls.

Feature	Description
Audio Input Ports	For external audio sources (RCA, optical, 3.5mm)
EQ Controls	Adjust bass, treble, and mid-range frequencies
Remote Control	Wireless remote for all basic functions
Headphone Jack	For private audio listening
Power Connector	For AC power connection
Bluetooth Connectivity	Wireless audio streaming capability
POWER	Turns system on/off
VOLUME	Adjusts audio output level
INPUT SELECT	Cycles through available audio sources
MUTE	Mutes sound temporarily

Installation

Unpack and inspect all components. Place on stable, level surface.

1. Position speakers: Place left and right speakers at ear level, facing listening area.
2. Connect audio sources: Use appropriate cables for your devices (RCA, optical, or 3.5mm).
3. Connect power: Plug power cord into AC outlet.
4. Pair Bluetooth devices: Enable pairing mode on first startup.

WARNING! System contains heavy components; use proper lifting technique. Ensure ventilation around unit.

First-Time Setup

Power on system; follow initial configuration prompts.

1. Select language: Use remote to choose preferred language (default: ENGLISH).
2. Pair Bluetooth: Enter pairing mode and connect your device.
3. Adjust EQ settings: Set bass, treble, and balance to preference.
4. Test audio: Play sample audio to verify all speakers function.

CAUTION! Keep away from heat sources and moisture. Allow proper ventilation.

Specifications

• Speaker Configuration: 2.1 channel system with subwoofer.
• Power Output: 150W total (50W per channel + 50W subwoofer).
• Frequency Response: 35Hz - 20kHz.
• Inputs: RCA, Optical, 3.5mm AUX, Bluetooth.
• Connectivity: Bluetooth 5.0 with aptX support.
• EQ Controls: Bass, Treble, Balance adjustments.
• Power Source: 120V AC, 60Hz.
• Dimensions: Main unit: 12" x 8" x 6".

Controls and Settings

Access settings via remote or front panel controls. Front Panel: POWER, VOLUME, INPUT SELECT, MUTE.

Remote: POWER, Numeric presets, INPUT SELECT, VOLUME, MUTE, EQ, SETTINGS.

Audio Settings: Bass (-10 to +10), Treble (-10 to +10), Balance (L/R adjustment). Source Selection: Bluetooth, AUX, Optical, RCA. System: Language selection, factory reset, firmware update. Presets: Save up to 5 custom EQ profiles.

Connecting Devices

Multiple connection options: Bluetooth, RCA, Optical, 3.5mm AUX.

1. Turn off system before connecting wired devices.
2. Match cables to correct ports (red/white for RCA, etc.).
3. Select input source using INPUT SELECT button or remote.
4. For Bluetooth: Enable pairing mode and select "Bose GS 123" on your device.

Tip: Use high-quality cables for best audio performance. Keep cables organized.

Audio Playback

Supports various audio sources including streaming, CDs, and digital files.

1. Select source: Use INPUT SELECT to choose desired input.
2. Adjust volume: Use VOLUME controls on remote or unit.
3. EQ adjustment: Press EQ button to access bass/treble/balance settings.
4. Save presets: Hold PRESET button to save current EQ settings.
5. Mute: Press MUTE to temporarily silence audio.
6. Bluetooth streaming: Connect device and play audio from apps.

WARNING! Avoid maximum volume for extended periods to prevent hearing damage.

Accessibility Features

Audio Presets: Pre-configured settings for different content types (Music, Movie, Speech). Balance Control: Adjust left/right balance for hearing preferences. Remote with large, tactile buttons for ease of use.

Care & Cleaning

Unplug system before cleaning. Use soft, dry cloth for exterior surfaces. For grilles, use soft brush attachment on vacuum.

CAUTION! Do not use liquids, solvents, or abrasive cleaners. Avoid getting moisture into ports or vents.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. Copyright © 2025 Bose Corporation; all rights reserved. For support, visit www.bose.com/support or contact 1-800-999-2673.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power connection	Check power cord connection; ensure outlet works.
No sound	Volume/mute/connections	Check volume level; ensure not muted; verify source connections.
Bluetooth not connecting	Pairing mode/distance	Enter pairing mode; ensure device within 30 feet.
Distorted audio	Volume too high/cable issues	Reduce volume; check audio cables for damage.
One speaker not working	Balance settings/connection	Check balance setting; verify speaker wire connections.

Reset: Hold POWER + MUTE for 10 seconds to factory reset.

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