Key Features
Carbon woofer
AI Sound Pro
Wireless subwoofer
Connectivity
Bluetooth Streaming
TV Sound Sync

Carbon Woofer
Pursue High Fidelity Sound
Each woofer unit is designed with a carbon diaphragm to secure excellent clarity.

AI Sound Pro
ADAPTIVE AUDIO FOR EVERYTHING YOU WATCH
AI Sound Pro automatically analyzes content to instantly optimize audio settings for what’s playing. Catch every detail with crystal clear dialogue or more punchy powerful action, depending on the genre.

Wireless Subwoofer
ADD MORE POWER EASILY
Feel the beat with the powerful LG Sound Bar SL4Y wireless subwoofer. Pumping out an extra 200 watts, it’s sounds good and it’s convenient to install.

Connectivity
CONNECT MORE CONVENIENTLY
Add Bluetooth® connectivity to your audio setup, or conveniently connect and play using optical or HDMI cables.

Bluetooth® Streaming
STREAM SMART FOR QUALITY SOUND
Stream music directly from your smartphone to LG Sound Bar SL4Y via Bluetooth®. Exceptional sound for all your music is now all within your reach.

TV Sound Sync
SYNC SEAMLESSLY
LG Sound Bar SL4 can be simply connected to your LG TV via Bluetooth® or optical. Your complete TV audio experience is ready in no time.
| Brand Information | |
| Brand | Sound Bar |
| Model Name | SN4 |
| Subwoofer Model Name | SPN4B-W |
| System (Main Chip) | MT8502 |
| Mainset/Subwoofer Color | Black |
| Size (W x H x D, mm) | |
| Main (w/ Foot) | 890 x 57 x 85 |
| Subwoofer | 171 x 390 x 261 |
| Material | |
| Main | Mold Grille/Mold/Mold |
| Subwoofer | Jersey/Wood |
| Weight (kg) | |
| Main | 2.1 |
| Subwoofer | 5.3 |
| Gross Weight | 9.38 |
| Carton Box | |
| Size (W x H x D, mm) | 984 x 217 x 416 |
| Type | TipOn |
| Color | White+Yellow |
| Container Quantity | |
| 20ft | 400 |
| 40ft | 960 |
| 40ft (HC) | 1056 |
| Number of Channels | 2.1ch |
| Output Power (THD 10%) | |
| Total | 300W |
| Front (each) | 50W x 2 |
| Subwoofer | 200W (Wireless) |
| Speaker Units | |
| Front (L/R) | SPL: 82dB, 40 x 100 mm, Closed, 4ohm |
| Subwoofer | SPL: 85dB, 6 inch, Bass Reflex, 3ohm |
| Connectivity | |
| Optical | Yes (1) |
| HDMI 1.4 (In/Out) | Yes (1) / Yes (1) |
| USB | Yes |
| Wireless Connectivity | |
| Bluetooth Version | 4.0 |
| Bluetooth Codec | SBC / AAC |
| Display Information | |
| Display Type | LCD (5 char.) |
| Sound Effect | |
| AI Sound Pro | Yes |
| Standard | Yes |
| Bass Blast / Bass Blast + | Yes |
| DTS Virtual | Yes |
| Sound Control | |
| User EQ | RCU / App |
| Night Time On/Off | App |
| Dynamic Range On/Off | App |
| Auto Volume Leveler On/Off | App |
| Auto Sound Engine | Yes (Default) |
| Convenience Features | |
| Remote App (Android OS) | Yes |
| Smart Phone File Playback | Yes |
| FOTA | Yes |
| Control with TV Remote | Yes (Vol+/-, Mute) |
| Sound Sync | Bluetooth (LG TV) / Optical |
| Auto Power On/Off | Bluetooth (LG TV) / Optical |
| A/V Sync (0~300ms) | App |
| HDMI SIMPLINK | Yes |
| HDMI Audio Return Channel (ARC) | Yes |
| Woofer Level | -15 ~ 6dB, 1dB/Step |
| Mute | Yes |
| Auto Dimmer | Yes |
| USB Host | Yes |
| Built-in Music | Yes |
| Bluetooth Stand-By | Yes |
| Audio Format (Bitstream) | |
| LPCM | Yes |
| Dolby Digital | Yes |
| DTS Digital Surround | Yes |
| AAC / AAC+ | Yes |
| File Format | |
| FLAC – USB | Yes |
| OGG – USB | Yes |
| WAV – USB | Yes |
| MP3 – USB | Yes |
| WMA – USB | Yes |
| Power | |
| Main (Adapter) | 25V, 1.52A |
| Main Power Off Consumption | 0.5W ↓ |
| Main Power Consumption | 23W |
| Subwoofer (SMPS) | 100~240V, 50/60Hz |
| Subwoofer Power Off Consumption | 0.5W ↓ |
| Subwoofer Power Consumption | 33W |
| Subwoofer Wireless Frequency | 5GHz |
| Accessory | |
| Web Manual | Yes (Full) |
| Built-in Manual (Book) | Yes (Simple) |
| Open Source | Yes (Full) |
| Warranty Card | Yes |
| Remote Control | |
| Model Name | MA7 |
| Battery (Size) | AAA x 2 |
| Battery Built-in | Yes |
| Others | |
| Optical Cable | Yes |
Additional information
| Weight | 16 kg |
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