VIZIO M51a-H6 User Manual

The VIZIO M51a-H6 is a 5.1 Sound Bar with Dolby Atmos featuring a sound bar, wireless subwoofer, and two surround speakers. It includes DTS Virtual:X, Dolby Audio, HDMI eARC, Bluetooth, USB playback, and voice assistant support. Powered by 100-240V AC, 50/60Hz. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Safety Instructions

WARNING! Read all instructions before use. Keep away from water, heat sources, and moisture. Clean with a dry cloth only; unplug before cleaning. Do not block ventilation openings; ensure proper airflow. Use only manufacturer-specified attachments and carts. Unplug during storms or when unused for long periods. Refer servicing to qualified personnel if damaged. Protect power cord from damage; do not overload outlets. Avoid condensation by allowing temperature stabilization. Do not insert objects into slots; avoid spills. Block subwoofer ports; maintain 1-2 inches clearance. Exposure to loud sounds can cause hearing loss. Unplug to disconnect power fully. Do not use in heavy dust or high humidity. Hold plug when unplugging to avoid cord damage. Insert batteries correctly to prevent leaks. Equipment is not waterproof; avoid liquid exposure. Danger of explosion if batteries are mistreated. Operate at maximum 35°C ambient temperature.

Features at a Glance

Key components: Sound bar with full-range drivers and tweeters, wireless subwoofer, two surround speakers.

Installation

Unpack and inspect contents: Sound bar, subwoofer, surround speakers, power cords, remote, cables, quick start guide. Place on stable surface.

1. Connect HDMI ARC cable to TV for best audio.
2. Plug in power cables for sound bar and subwoofer.
3. Connect surround speakers to subwoofer using color-coded cables (blue for left, grey for right).
4. Subwoofer auto-powers on and links to sound bar.
5. Insert AAA batteries into remote.
6. Auto-detect input on first power-on; press INPUT to switch.

Electrical: 100-240V, 50/60Hz; ensure proper grounding.

First-Time Setup

Power on devices; follow prompts. Connect to TV via HDMI ARC (best), Optical (better), or 3.5mm (good). Pair Bluetooth if needed.

1. Connect to TV via preferred cable.
2. Plug in sound bar power cable.
3. Connect surround speakers to subwoofer.
4. Plug in subwoofer power; it auto-links.
5. Insert remote batteries.
6. Power on; sound bar auto-searches input.

CAUTION! Reduce source volume to avoid damage; ensure subwoofer vents are clear.

Specifications

Controls and Settings

Top Panel: Volume +/-, Input, Power, Bluetooth (hold to pair). Remote: Volume, Setup, Effect, Input, Bluetooth, EQ, Levels. Settings via remote SETUP button: EQ (Movie/Music/Direct/Game), Bass/Treble/Dialogue/Center/Subwoofer/Surround levels, Surround modes (On/Off, Front/Dual), Virtual:X, TruVolume, Night Mode, Auto VA, Eco Power, AV Delay, Speaker Test, Reset.

Bluetooth and USB Playback

Bluetooth: Hold button to pair; search "VIZIO M51a"; auto-reconnects. USB: Insert drive, select USB input for .WAV/.MP3 playback. HDMI ARC: Connect for TV audio; supports Dolby/Atmos. Optimize: Reduce source volume to avoid damage.

Voice Assistant Features

Connect via AUX VA or Bluetooth; auto-mutes other audio for VA responses. Compatible with Google Assistant, Siri, Alexa; use for commands like volume control, playback.

Care & Cleaning

Unplug before cleaning. Use dry cloth; avoid liquids or abrasives. Do not block vents or subwoofer ports.

Regulatory Information

FCC Class B: Complies with interference limits; use shielded cables. RF Exposure: Maintain 20cm distance from body. Battery Disposal: Follow local regulations; recycle separately. Software: Subject to VIZIO terms and licenses.

Troubleshooting

Reset: Use SETUP > Reset on remote.

Service: support.vizio.com