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Raspberry Pi tube amplifier for Hi-Fi headphones up to 300 ohms

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So far, we have seen numerous modifications for small Raspberry Pi computer, which was located in robots, intelligent alarm system, arcade machines, and now comes in the form of tube amplifier intended for expensive Hi-Fi headphones.

The company Pi Design 2 on Kickstarter in just three days raised the required $ 20,000 for bringing to market an amplifier called “Hybrid Tube Amp for the Raspberry Pi” labeled 503HTA, and at the time of this writing, have already collected about $ 80,000.

If for some time now you are in Hi-Fi streams, then we do not need to talk for what you can use tube amplifier (or any amplifier) for headphones, when you can directly connect to your smartphone, CD player or stereo, but for those less experienced we will only say that the quality Hi-Fi headphones with greater resistance must “wiretapping” amplifier as it will otherwise be “silent”.

pi-tube

In addition, “lanterns” or tube amps offer a special warm and clear sound, which no digital product can do that, but in spite of its tremendous development of the technology of transistors and chips, tubes (lamps) are still produced and installed in the highest quality and the most expensive hi-fi amps best known brands.

But that would not turn out that for some turbo-ass Hi-Fi headphones type Audeze LCD 3 that cost about $ 2000 necessarily need to have an adequate amplifier does not lower prices, Pi 2 Design offers an alternative with its tubular amplifier 503HTA working on small-scale Raspberry Pi 3 computer, and via kickstarter you can order it for only $ 109 (£ 718), including the lamp of choice.

Despite the low price,  503HTA is still able to work with all stereo headphones with resistance from 32 to 300 ohms.

For sound quality you should not overly worry because the authors also come from the Hi-Fi industry, although we would like to check it with some kick-ass headphones, maybe not Audeze, but then at least for a little more accessible model Oppo, Shure and Sennheiser headphones.

Source: Kickstarter

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REDMI 10X SERIES DEBUTS IN MAINLAND CHINA

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Photo: Xiaomi

Today, global technology leader Xiaomi officially announced the Redmi 10X for Mainland China – the first phone in the new Redmi X series. Standing at the forefront of the industry, Redmi 10X is the first smartphone to ship with the MediaTek Dimensity 820 SoC while also supporting dual 5G standby, achieving top-of-the-line performance with an AnTuTu score of over 410,000. The series also offers a Samsung AMOLED display and 30x digital zoom camera.

Leading performance with MediaTek Dimensity 820

Powered by a MediaTek Dimensity 820 processor, Redmi 10X series is currently the highest performing mid-to-high-end smartphone on the market. Thanks to its flagship-level four-core architecture (4X ARM Cortex-A76 cores and 4X ARM Cortex A55 cores), MediaTek 820 provides a blazing clock speed of up to 2.6Hz, enabling Redmi 10X to achieve an AnTuTu score of over 410,000, ranking first in its price range.

To ensure stable and uninterrupted performance during prolonged gaming sessions, Redmi 10X series is kept cool with a liquid cooling system that surrounds a suspended heat pipe, and multi-layered graphite to disperse the heat.

Photo: Xiaomi

Non-stop connectivity with world’s first dual 5G standby

Redmi 10X series adopts an integrated 5G solution which supports dual-mode SA+NSA to cover mainstream Mainland China 5G frequency bands. When connected to two 5G networks simultaneously, the device can intelligently switch between the two networks to ensure optimal 5G connectivity at all times.

To continually provide peak performance with the best power consumption rate, Redmi 10X also leverages the MediaTek 5G UltraSave energy management function and smart switching technology to intelligently select optimal and sustained signal quality at lowest power.

Redmi 10X series also has targeted optimization capabilities for different usage scenarios such as elevators, basements, and high-speed transport. It is able to monitor network signals throughout popular transit routes to constantly optimize network parameters and pathways, greatly reducing the rate at which calls drop or data connectivity is lost, ensuring a stable and fast 5G connection across all locations.

Celebrate creativity with unparalleled camera capability

Users can get creative with light photography thanks to Redmi 10X series’ outstanding camera capabilities that can capture intricate and experimental scenarios such as crowds, night scenery, running water, light painting, and starry skies. With this dynamic camera, users don’t need to fiddle with complex parameter setups in order to take playful images of light.

Redmi 10X series also boasts the industry’s first handheld low-light timelapse camera. Thanks to the low-light registration algorithm, interest point screening and 10ms nightscape alignment, users can take stunning night time photos and videos without the need of a tripod, providing a much simpler way of upgrading photography skills and video quality.

Redmi 10X series is fitted with a 48MP ultra-high resolution main camera. Redmi 10X Pro sports a 30x digital zoom with optical image stabilization (OIS), which significantly increases the stability while taking pictures.

Photo: Xiaomi

Flagship-level features that revamps your mobile experience

Redmi 10X series sports a 6.57’’ Samsung AMOLED display that boasts 2400×1080 resolution for bright and clear image. The display supports HDR10+ and adjusts brightness and contrast in real time based on the content being played, ensuring optimal image details. With DC dimming, it minimizes stroboscopic effects in low lighting and ensures a comfortable viewing experience in the dark.

Redmi 10X series features an in-screen fingerprint sensor and customizable Always-on Display. The new Dark Mode 2.0 allows non-compatible third party apps to obtain dark mode coverage in all scenarios which ensures comfortable viewing at night, and saves 50% more power compared to LCD Dark Mode.

Redmi 10X series puts an end to the hassle of daily charging. Equipped with a 4,520mAh (typ) large capacity battery, it offers the hardware required for long lasting battery life. Redmi 10X Pro also supports 33W PD fast charge to quickly regain a sufficiently charged battery level.

Designed with a full 3D curved screen glass body, Redmi 10X series comes in four colors: Twilight Purple, Deep Ocean Blue, Starlight White, Lunar Gold. The Lunar Gold variant adopts the AG craft commonly seen in flagship phones, which is designed with a matte finish that exudes quality and is resistant to finger smudges. Both sides of the device are built with the highly durable Corning® Gorilla® Glass 5, giving it smash and drop-proof qualities. Redmi 10X series sports IP53-level for dust and splash protection, offering resistance to light rain and other unexpected mishaps of daily life.

Other notable features include: Xiaomi’s latest MIUI 12 software1,multifunctional NFC for swift payments and door access, linear motor for haptic feedback, 1217 ultra-linear speaker for loud playback, IR blaster for quick remote control, and an in-screen fingerprint sensor for quick unlock experience – a powerful configuration rarely seen in other products in a similar price range.

Redmi 10X series comes in two editions, Redmi 10X and Redmi 10X Pro. The core hardware configuration of the two devices maintains a high degree of quality and consistency.

Redmi 10X comes in four variants: 6+64GB, 6+128GB, 8+128GB, and 8+256GB, priced at RMB 1,599, RMB 1,799, RMB 2,099, and RMB 2,399 respectively.

Redmi 10X Pro comes in two variations: 8+128GB and 8+256G, priced at RMB 2,299 and RMB 2,599 respectively. The two devices are currently available for purchase through all official Xiaomi channels.

Xiaomi also revealed the Redmi 10X 4G edition. Sporting a MediaTek Helio G85 processor, Redmi 10X 4G has a 6.53’’ full screen display with a tiny in-display camera and a 48MP rear quad camera, a large 5,020mAh (typ) battery and an ultra-large 128GB storage capacity. It comes in three colors: Skyline Blue, Forest Green and Frost White. Priced at RMB 999 for 4+128GB, it is currently available for purchase through all official Xiaomi Mainland China sales channels.

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HONOR Launches HONOR X10, the First 5G Smartphone in its X-series

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Photo: Honor

HONOR announced the new HONOR X10, the first 5G smartphone in the X-series for the Chinese mainland market. The HONOR X10 features the 5G 7nm Kirin 820 SoC that supports nine 5G frequency brands, and a triple camera setup that is equipped with a RYYB sensor. The smartphone has a 92% screen-to-body ratio and will come with a 90Hz refresh rate display and a 180Hz touch sampling rate for a superior viewing experience. Packed full of HONOR’s newest technology, the HONOR X10 is well-positioned for the 5G era and promises to deliver next-generation performance in gaming and photography for its users. At the launch event, George Zhao, President of HONOR also announced that the total global shipment of the HONOR X-Series had exceeded 80 million units and received countless accolades.

Available online and from major HONOR retailers from 26 May in mainland China, the HONOR X10 will be available in Sapphire Blue, Midnight Black, Titanium Silver and Fiery Orange. Prices start at RMB1899 for the 6GB + 64GB version, RMB2199 for the 6GB + 128GB version and RMB2399 for the 8GB + 128GB version.

All-round upgrade: Enhanced 5G experience with the 5G 7nm Kirin 820 chipset

As the first 5G smartphone in the X-series, the HONOR X10 has set a high bar for a flagship 5G experience. Its 5G 7nm Kirin 820 chipset can support both non-standalone and standalone modes and support nine 5G frequency bands that will provide an extensive range of coverage, allowing the HONOR X10 to enjoy more stable and reliable 5G connectivity. Equipped with a smart antenna, the HONOR X10 is able to receive send and receive signals effectively even when the user moves between areas of differing 5G coverage.

Prior to the launch of the HONOR X10, HONOR also announced the opening of the HONOR 5G Laboratory. According to a representative of the HONOR 5G Laboratory, the company invested over RMB300 million into research and development of the HONOR X10, spent over 500,000 man-hours testing the smartphone’s 5G capabilities and made 250,000 test calls on the smartphone. To mark the 60th anniversary of the historic ascent of Mount Everest, HONOR collaborated with the Chinese National Mountaineering Team to make the HONOR X10 the designated smartphone for the team. On 11 May, the national mountaineers scaled Mount Everest with the HONOR X10 and tested its 5G capabilities at more than 6500 meters above sea level. The result was astounding: the HONOR X10 recorded a maximum download speed of 1617Mbps, proving that it is a high-performing smartphone even in harsh environments.

Designed for gaming enthusiasts: 90Hz refresh rate display

The 5G 7nm Kirin 820 chipset, a successor to the Kirin 810 chipset, features an innovative octa-core design with one high-performance A76 big core, three balanced A76 middle cores, and four energy-efficient A55 small cores. With this configuration, the chipset can operate up to a speed of 2.36GHz. Built on the Huawei’s Da Vinci NPU architecture, the 5G 7nm Kirin 820 chipset achieves superior performance and ultra-low power consumption, allowing it to perform 5G and AI tasks seamlessly and effectively.

In order to improve the gaming performance of the HONOR X10, the hardware of the smartphone underwent several optimizations. Firstly, the GPU of the HONOR X10 is a Mali-G57 with six cores and has a Smart Cache feature that implements flexible switching of bandwidth resources to reduce power consumption. In addition, compared with the last generation, the HONOR X10 has an additional six antennas. Finally, the HONOR X10 features the Kirin Gaming+ 2.0 with brand new AI frequency modulation scheduling technology that achieves a sweet balance between gaming performance and power consumption. It is also equipped with the latest GPU-Turbo to provide more high-performance support for most popular games.

The HONOR X10’s 90Hz refresh rate for its display is a win for gamers looking to experience buttery-smooth gameplay. Compared to most smartphone displays that have a 60Hz refresh rate, the HONOR X10 will feature noticeably smoother scrolling and users will experience lesser eye fatigue. Furthermore, the HONOR X10 boasts a 180Hz touch sampling rate, significantly reducing touch lag and speeds up the overall experience. Finally, the HONOR X10 is equipped with a 4,300mAh battery that supports 10V 2.25A fast charge, allowing all-day uninterrupted usage.

RYYB sensor enables superior night photography on the HONOR X10

The HONOR X10 features a 40MP triple camera setup and an industry-leading image sensor that is equipped with an exclusive RYYB filter that increases the light intake by up to 40%. With the enhancement of light sensitivity brought by RYYB, the HONOR X10 is able to support an impressive ISO of up to 153,600. The 5G 7nm Kirin 820 chipset has ISP 5.0 that supports BM3D for professional-level noise reduction while the improved AIS Super Night mode will enable the HONOR X10 to synthesize multi-frame images and support exposure up to 30 seconds. Together, these upgrades will allow the HONOR X10 to capture ultra-clear night shots with heightened brightness and better color preservation even in dimly lit environments.

The HONOR X10 camera also allows users to capture crisp pictures even when there is fast movement. Through a series of optimization processes and AI, the HONOR X10 is able to synthesize different layers to form a perfect picture. The HONOR X10 also supports 4K Ultra-HD video shooting capabilities. In terms of its front-facing camera, the HONOR X10 has a 16MP Selfie camera. Working together with enhanced AI capabilities, selfies will not look over-processed and are more natural.

Immersive audio and visual experience

The HONOR X10 has a screen resolution of 2400 x 1800 and a screen-to-body ratio of 92%, providing users with an unobstructed viewing experience. The TÜV Rheinland-Certified blue light filter in the HONOR X10 effectively reduces the harmful blue light emitted by the screen, minimizing eye fatigue for smartphone users. The custom-built components and HONOR’s self-developed algorithm optimize the screen’s visibility under bright sunlight, presenting every detail with optimal clarity and sharpness.

In the audio department, the HONOR X10 is equipped with an HONOR-developed amplifier that enhances the audio quality. Coupled with the Virtual 9.1 Surround Sound feature, users can indulge in an immersive audio experience that mirrors a cinema environment.

The ever-changing hues on the glassback of the HONOR X10 are due to its 21-layer glass technology. To appeal to the global youth, the HONOR X10 comes in Sapphire Blue, Midnight Black, Titanium Silver and Fiery Orange.

Magic UI 3.1 brings technology and aesthetic enhancements to HONOR X10

The HONOR X10 will be pre-installed with the Android-based Magic UI 3.1 that delivers an aesthetically arresting UX design coupled with improvements in software. With this latest upgrade, users can expect a slew of user-friendly smart features such as seamless cross-device connection, multi-screen collaboration and smart travel. Users can also enjoy next-level upgrades in smart office, photography, performance and security.

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MIUI 12, A LIFELIKE OPERATING SYSTEM THAT IS YOURS ALONE

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Photo: Mi Blog

Xiaomi today unveiled its latest release of Android-based OS: MIUI 12, delivering on the top-notch experience MIUI users have come to expect. The much-awaited MIUI 12 launches with a slew of bottom-up optimizations and ushers in a five-star OS experience to impress new and existing users globally. As privacy protection is at the core of the development of MIUI, MIUI 12 introduces a host of enhanced privacy features that continuously reinforce this focus. With a brand-new UI design and innovative system animations, MIUI users are bound to enjoy a “lifelike” system experience as a highlight amongst several new features.

Reinforced privacy protection makes the user informed and empowered

MIUI 12 grants the user stronger control over permissions which takes privacy protection to the next level. When individual apps ask for permissions, a wider range of options (such as “While using the app” and “Notify”) is offered. Building on Android’s rigorous permission control over location, MIUI 12 takes things a step further to manage apps that request sensitive permissions. In addition to location, permissions to access camera, microphone, contacts, call history, calendar and storage are only allowed under “While using the app” mode. MIUI 12 also protects the user’s privacy when sharing photos: location information and metadata can be removed before the items are sent.

Photo: Mi Blog

Design and animations inspired by nature

MIUI 12 brings the OS experience to life with a bottom-up revamped UI design and nuanced system animations. System-wide, core scene animations are fully refreshed with system-level technical innovations. With Mi Render Engine, MIUI 12 creates an ultra-smooth UI experience. Powered by Mi Physics Engine, the elegant motion of icons simulates a 3D curve that resembles real-life motion trajectory. From the elegant opening and closing of apps to the smooth switching between apps, every detail mirrors a refreshing design methodology inspired by nature. With nuanced system animations, MIUI 12 introduces a lifelike OS experience where every detail becomes tangibly real.

Adopting realistic visualizations across the system allows us to make each screen more informative and comprehensible. Data is perceived more intuitively when it’s presented in graphics. Visualizations save time and make the interaction with the mobile device more intuitive and efficient. Visualized elements also acknowledge the user’s presence by reflecting motion in animations, which makes every glance at the screen unique and personal.

The newly introduced “Super Wallpaper” takes cosmic aesthetics to a new level with stunning reconstructions of iconic planetary landforms based on NASA’s official imagery. Super wallpapers combine Always-on display, Home screen, and Lock screen into an exciting space mission, revealing new parts of distant planets as the user makes their way through the system. With Super Wallpaper, MIUI 12 becomes a window into the transient splendor of the universe.

Photo: Mi Blog

New features and improvements

Multitasking

MIUI 12 introduces state-of-the-art multitasking solutions in the form of global floating windows. When the user navigates the system using full screen gestures, floating windows can facilitate multitasking and save the trouble of constantly switching between apps. Floating windows can be easily moved, closed, and resized by simple gestures applied to the action bar. For example, when a text message comes while a video is playing, the user can reply in the floating window without pausing playback. Floating windows make multitasking on mobile devices seamless, convenient and disturbance-free.

Casting

MIUI 12 enhanced the previously introduced screen casting functionality, turning it into a must-have tool for any presenter. Now, the user can start casting documents, apps, videos, and games with a single tap. Multitasking is also supported here: the windows that are being cast can be minimized at any time. The option to cast items with the screen off decreases power consumption and hiding private items doesn’t allow floating notifications and incoming calls to appear on external monitors.

Ultra Battery Saver

MIUI 12 supports an Ultra battery saver mode. With this feature on, the most power-consuming features will be restricted to extend the phone’s standby time and reduce power consumption when the phone’s battery is running low. Calls, messages, and network connectivity won’t be affected and will remain fully usable.

Dark Mode

MIUI 12 comes with a beautiful new look with enhanced Dark Mode. With a darker color palette for system backgrounds, system apps, and third-party apps alike, Dark Mode provides an outstanding viewing experience in low-light environments. When Dark Mode is on, the user can also choose to adjust contrast automatically to match the ambient light when screen brightness is reduced. Dark Mode also lowers power consumption and helps to ease eye strain.

App Drawer

Xiaomi’s Poco Launcher has proven to be well-received by global users. Its signature feature – the App drawer – now comes to MIUI 12. If the user turns it on, all apps will go there, which will make the Home screen cleaner and neater. The user can also group apps automatically according to the user’s preferences to find the needed app in just a few swipes.

Photo: Mi Blog

Rollout plans

First rollout: starting from June, 2020

Mi 9/ Mi 9T/ Mi 9T Pro/ Redmi K20/ Redmi K20 Pro

The rest will be rolled out model by model

Redmi Note 7/ Redmi Note 7 Pro/ Redmi Note 8 Pro/ Redmi Note 9/POCOPHONE F1/ POCO F1/ Mi 10 Pro/ Mi 10/ POCO F2 Pro/ POCO X2/ Mi 10 Lite/ Mi Note 10/ Mi 8/ Mi 8 Pro/ Mi MIX 3/ Mi MIX 2S/ Mi 9 SE/ Mi 9 Lite/Redmi Note 7S /Mi Note 3/ Mi MIX 2/ Mi MAX 3/ Mi 8 Lite/ Redmi Y2/ Redmi S2/ Redmi Note 5/ Redmi Note 5 Pro / Redmi 6A/ Redmi 6/ Redmi 6 Pro/ Redmi Note 6 Pro/ Redmi Y3/ Redmi 7/ Redmi 7A/ Redmi Note 8/ Redmi Note 8T/ Redmi 8/ Redmi 8A/ Redmi 8A Dual/ Redmi Note 9s/ Redmi Note 9 Pro/ Redmi Note 9 Pro Max/ Mi Note 10 Lite

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