The REDMI K80 Ultra Debuts with AAC’s “Ultimate Dual-Sense System”
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Ultimate Dual-Sense, Revolutionary Advancement，Delivering Twice the Premium Experience!
REDMI’s 2025 milestone flagship—the premium performance flagship REDMI K80 Ultra arrives!AAC Technologies proudly presents the groundbreaking “Ultimate Dual-Sense System,” featuring the industry-first “Master-grade Coaxial Symmetric Dual Speakers” and Android’s largest “Ultra-wideband Cyber Actuator.” This revolutionary system empowers the REDMI K80 Ultra with unprecedented performance upgrades, redefining mobile audio and haptic excellence!
“Master-grade Coaxial Symmetric Dual Speakers”——Audio Quality Reaches New Heights of Excellence!
AAC’s master-grade coaxial speaker stands as the only dual-driver coaxial speaker in micro-speaker technology. Through its innovative architecture, premium materials, and symmetric dual-speaker design, it overcomes traditional speaker limitations of “inadequate low-frequency extension and missing high-frequency details,” achieving comprehensive audio enhancement across all frequency ranges.
The REDMI K80 Ultra makes a groundbreaking leap in mobile audio by incorporating dual master-grade coaxial speakers, delivering an unparalleled stereo experience that redefines premium sound quality standards.
Structural Innovation:Coaxial Dual-Driver System (Tweeter + Woofer) Ensures Superior Full-Range Audio Performance
AAC’s master-grade coaxial speakers feature an innovative speaker-class crossover design with a shared magnetic circuit for both drivers.
Tweeter
The dedicated tweeter extends frequency response up to 20kHz, delivering an average 16dB boost in the 8kHz-20kHz range for enhanced audio clarity, brighter highs, and superior detail resolution.
Woofer
Featuring an advanced magnetic circuit design with next-gen diaphragm technology and metal mesh enclosure, the woofer achieves 30% higher BL efficiency, extends bass response down to 100Hz, and delivers 5dB average gain in the 100-500Hz range for deeper, more impactful low frequencies.
The coordinated operation of tweeter and woofer delivers an ultra-large 0.75mm amplitude, boosting the 8k-20kHz sound pressure level by over 16dB on average. This enables the K80 Ultra to achieve exceptional full-range audio performance, delivering crystal-clear highs, precise mids, deep bass, and an impressively expanded soundstage. By integrating the woofer and tweeter into a single magnetic circuit, this design not only enhances audio but also enables a more compact, lighter, and more energy-efficient device, meeting the demand for high performance in a slim profile.
Image: REDMI Weibo
Premium Materials:Aircraft-grade Ultra-Light Dome With Next-Generation Hyper-Compliant Diaphragm
The AAC master-grade coaxial speaker incorporates an aircraft-grade ultra-light dome for exceptional strength-to-weight ratio, paired with an innovative hyper-compliant diaphragm that enhances bass response while maintaining reliability even at extreme amplitudes. Manufactured with micron-level precision, each speaker undergoes rigorous production processes that meet our exacting standards. Our proprietary manufacturing innovations not only increase production efficiency but also guarantee the consistent quality and reliability expected of master-grade coaxial speakers.
Symmetrical Dual Speakers:Dual Premium Speakers Deliver Balanced Acoustics
The REDMI K80 Ultra features dual AAC master-grade coaxial speakers in its premium configuration for a more balanced soundstage. Its stereo external audio output delivers captivating sound quality rivaling standalone speakers! Powered by AAC’s NLC algorithm, it sees a 240% enhancement in the low-frequency clarity, elevating bass performance to new heights for an immersive audio experience.
Image: Screenshot from Wang Teng (Thomas) Weibo
For gaming and entertainment: The K80 Ultra’s full-range audio excellence precisely reproduces cinematic explosions, in-game impacts, environmental effects, and delicate instrumentals, creating true-to-life sound immersion.
For music playback: The K80 Ultra delivers instantly addictive audio quality, effortlessly handling diverse genres from deep bass to crystal-clear highs. It reveals layered musical details—from instrumental vibrato to vocal nuances—with striking realism.
In daily usage scenarios: The K80 Ultra delivers brighter and more transparent high-frequency sound that instantly captures users’ attention. Whether for message alerts or incoming call ringtones, every sound comes through with crystal clarity, ensuring users never miss important notifications.
In voice-centric meeting environments: The K80 Ultra’s authentic mid-range reproduction delivers exceptional vocal clarity and distinctiveness through its external speakers. Even in noisy surroundings, every sound remains distinctly audible.
*Note: Laboratory test data from AAC Acoustics Lab comparing Master-grade Coaxial Speaker vs Classic Speaker configurations.
Notably, REDMI has partnered with Dolby and QQ Music to launch the industry’s first NFC-enabled burn-in album collection, featuring three curated playlists (Pop, Classics, and Instrumental), perfectly complementing the K80 Ultra’s master-grade coaxial symmetric dual speakers for an immersive audio experience with a simple tap.
Image: REDMI Weibo
“Ultra-Wideband Cyber Actuator”——Elevating Haptic Feedback to Premium Levels!
In terms of haptics, the K80 Ultra makes its global debut with what may be Android’s most powerful AAC ultra-wideband cyber actuator, delivering an unparalleled vibration experience through its exceptional actuator performance.
Premium Performance for Ultimate Haptic Feedback
The AAC ultra-wideband cyber actuator designed for the K80 Ultra features an impressive 602mm³ volume, achieving dual upgrades in both structure and materials. This represents the pinnacle of actuator evolution, redefining the performance ceiling for Android actuators.
Just How Powerful Is the Ultra-Wideband Cyber Actuator? 👇👇👇
Compared to the Actuator in the Previous Generation——The ultra-wideband cyber actuator delivers a 176.6% improvement in transient vibration and a 3.4x faster response speed.
Compared to Android’s Previous Strongest Bionic Vibration Actuator Turbo——The ultra-wideband cyber Actuator delivers an industry-leading vibration amplitude of 5.09Gpp (*Note: 5.09Gpp is measured from standalone actuator testing, while the K80 Ultra achieves 6.05Gpp in transient vibration during full-device testing), outperforming the bionic vibration actuator Turbo to become the most powerful X-axis linear actuator in the Android ecosystem.
What Makes the Ultra-Wideband Cyber Actuator So Powerful? 👇👇👇
Powered by the Fourth-Generation Actuator Technology Platform
The ultra-wideband cyber actuator incorporates AAC’s fourth-generation actuator platform featuring multi-magnetic circuit design. This delivers enhanced driving force with ultra-responsive start-stop performance, enabling precise “tap-to-vibrate” feedback with crisp, zero-lag haptic responses.
Dual Advancements in Materials and Architecture
Material-wise, the actuator pioneers the use of premium-grade N56SH multi-pole magnetic steel, the highest specification available for mobile actuators. This breakthrough material, with its superior magnetic properties, provides the fundamental strength for unprecedented driving force of actuators. Additionally, AAC has developed high-density damping materials and a next-generation magnetic conductive frame with superior permeability specifically for ultra-wideband cyber actuators. This enhancement significantly improves vibration consistency and driving force across all performance aspects.
Structurally, the ultra-wideband cyber actuator features an innovative skeleton design with non-standard geometry. When combined with precision improvements from automated assembly line processes, this creates additional design flexibility for boosting the driving force of actuators.
Custom-tuned Haptic Effects Enable Nuanced Interactions Across Diverse Usage Scenarios
Leveraging the premium hardware capabilities of the actuator, both engineering teams have developed nearly 100 scenario-specific haptic optimizations for the K80 Ultra. These custom-tuned vibrations deliver exceptionally natural feedback during gaming, office work, and daily interactions, perfectly mirroring real-world tactile experiences. For instance, during camera zoom operations, vibrations dynamically adjust in real-time to match the speed and range of virtual scale movements, providing precise tactile feedback for focal length changes. When users type words, the system delivers crisp, mechanical keyboard-like tactile responses for an authentic typing experience.
Image: Video Footage from Wang Teng (Thomas)
Furthermore, empowered by RichTap® 2.0 technology, the AAC ultra-wideband cyber actuator achieves an effective frequency range of 50Hz-500Hz, laying the foundation for the K80 Ultra to deliver broader-spectrum haptic feedback. This enables the K80 Ultra to support nearly a thousand premium haptic effects in HyperOS 2.0, ensuring consistently immersive haptics experiences.
OIS Optical Stabilization + 20MP Front-facing Camera——Elevating Mobile Photography to Professional Standards!
Official specifications reveal the K80 Ultra features a 50MP OIS camera module with a 1/1.55-inch CMOS sensor, integrating OIS technology to establish a professional-grade imaging system. The large-format sensor delivers exceptional light capture capability, accurately reproducing image details even in low-light conditions for bright and clear imaging results. Meanwhile, the OIS technology employs a sophisticated gyroscope and micro actuator system to compensate for camera shake in real-time, ensuring stable and sharp images during dynamic scenes or handheld shooting, allowing users to effortlessly capture every highlight moment. Furthermore, the K80 Ultra features a 20MP front-facing camera that delivers premium-quality selfies for an exceptional photography experience.
Additionally, REDMI’s newly launched K Pad offers flagship-level performance and premium experiences that fit right in your pocket!
For thermal management, the K Pad pioneers an ultra-large 12,050mm² aluminum alloy vapor chamber cooling system, reducing weight by 45% while lowering temperatures by 1.2°C. This liquid-cooled VC technology, co-developed by AAC and successfully implemented, utilizes ultra-lightweight aluminum-based materials to overcome the limitations of traditional VC solutions. It marks the industry’s first large-scale application of ultra-large aluminum-based VC, significantly advancing heat dissipation solutions by reducing weight while enhancing performance. This innovation meets the K Pad’s demanding thermal management requirements, delivering a smoother and more efficient user experience.
Note
- The temperature performance data is derived from comparative testing against stainless steel cooling solutions in Xiaomi’s laboratory. Actual results may vary depending on usage scenarios and environmental conditions;
- Weight reduction data is calculated based on the density difference between aluminum-based materials and stainless steel, as measured in Xiaomi’s laboratory. Field test results may differ due to environmental factors; please refer to real-world performance.
For audio performance, REDMI partnered with AAC to develop the industry’s first ultra-thin “quad voice coil symmetrical dual speakers” exclusively for the K Pad. The symmetrical design delivers balanced, immersive sound quality, setting a new benchmark for premium audio in compact tablets.
The REDMI K80 Ultra, featuring AAC’s Ultimate Dual-Sense System, starts at RMB 2,599, while the REDMI K Pad begins at RMB 2,799. These two premium devices are now ready for their grand debut—stay tuned for the exclusive first-sale event!