Redmi K90 Pro Max sound system is tuned by Bose and features its own sub-woofer
A smartphone redefining audio performance
The Redmi K90 Pro Max is taking a bold step in smartphone sound innovation. Unlike most devices that rely solely on stereo setups, this model features a dedicated 2.1-channel audio system tuned by Bose. What makes it unique is the inclusion of an actual sub-woofer integrated into the rear body, giving it an edge in bass output rarely seen in mobile devices.
This design approach sets the phone apart from typical flagships that focus on camera or display improvements. The Bose collaboration enhances clarity, balance, and richness, aiming to deliver cinema-like sound for both entertainment and gaming. Redmi’s decision to involve a specialist audio brand shows a serious commitment to quality listening experiences.
The 2.1-channel setup means users get two main stereo speakers and a separate bass driver. This configuration allows better separation of high and low frequencies, producing deeper, more powerful sound. The rear sub-woofer is designed to add low-end depth that complements the crisp mids and highs from the main speakers.

For everyday use, this translates to noticeably fuller sound during movie playback, gaming sessions, or music streaming. The system has been tuned to minimise distortion even at high volumes, ensuring consistent clarity whether the phone is handheld or placed on a surface.
Bose’s tuning involvement suggests fine-tuned frequency balancing, with special emphasis on clean vocals and deep bass resonance. This makes the Redmi K90 Pro Max not only a visual powerhouse but also a strong performer for audio lovers who rely on built-in speakers.
The positioning of the sub-woofer on the rear also plays a key role. When placed on a flat surface, it uses the reflective properties of that surface to amplify bass tones. This design choice helps create a more immersive, room-filling sound experience compared to standard front-facing speakers.
In gaming scenarios, the phone’s enhanced audio setup delivers an added layer of realism. Explosions, engine roars, or musical scores sound fuller, offering an edge for users who prefer gaming without headphones. This focus on immersion underlines Redmi’s effort to merge power and entertainment seamlessly.
For the UK market, this feature aligns well with growing interest in phones that serve as complete entertainment hubs. With streaming, podcasts, and mobile gaming continuing to grow, superior audio quality has become a deciding factor for many buyers.
The Bose-tuned system could also enhance call and voice performance, ensuring richer tones and reduced harshness during long conversations or voice chats. Combined with advanced microphones, the phone aims to deliver premium sound both ways.
Overall, the Redmi K90 Pro Max is more than just a device with flagship specs—it’s a statement in smartphone sound design. By integrating Bose tuning and a sub-woofer, it redefines what mobile audio can achieve, offering a richer, more immersive experience that appeals to both casual users and enthusiasts alike.
