• Dual Bass System : Based on deep understanding of home entertainment, TCL has gained rich experience to make hardware and software work together to maximize the bass performance. That is "Bass Enhancement System"
• Hi-Fi Speaker:The Hi-Fi speaker S45H equipped with has several advantages. UKP diaphragm brings clear vocals and excellent frequency response. Rubber suspension contributes to smooth frequency response, high-fidelity sound output and deep powerful low-frequency extension. What's more, S45H benefits from sensitive electromagnetic induction, completing transformation of electrical signals into stored information thanks to the big size magnet
• Dual Horn Echo Chambers: In the chamber, the mid-low frequency rearward sound waves undergo phase transformation through this structure and combine with the forward sound waves to achieve bass amplitude enhancement
• Low-Frequency Algorithm: Peak Sound Pressure Enhancement Algorithm effectively boosts the sound pressure level by 4dB in the 60-90Hz range
• Golden Ear Tuning: Under the guidance of top industry experts, the S45H takes a comprehensive lead in bass depth and resolution, achieving a powerful yet non-overwhelming bass experience
• Dolby Atmos: Revealing depth, clarity, and details like never before, Dolby Atmos is a sound experience you can feel all around you

Best partner for TCL TV: AI-Sonic adaptation sound by calibrating your room from all perspectives. Tutti Choral enables TCL TV speakers and external soundbars to work in unison, delivering clearer vocals and a more immersive soundstage.
Dolby Atmos & DTS Virtual: X Decoding :The most advanced decoder creating a more expansive audio experience. Virtual sound in any room enables detailed reproduction for an immersive experience.
Optimized Sound Modes: Based on 6 preset EQ sound modes (Movie/Music/News/Sports/Game/TV) ,you get more in your daily TV scenes.
Easy connection & One remote control : Stream music wirelessly from your smartphone, tablet or laptop. TCL S45HK connects to your TV via a single HDMI eARC cable. Both TV and soundbar can be controlled with one remote for better experience.
Compact & Minimalist design : S45HK, under 85cm long, fits most entertainment consoles and TV stands. Its minimalist design complements home decor.
Alternate Codes : 12291785