This Slick Little Music Box Can Vibe Out Any Living Room

Swift Setup for Seamless Integration

The initial experience with the Amp Ultra is characterized by its remarkable ease of setup, a crucial factor for both seasoned audio enthusiasts and newcomers to the world of amplifiers. Unboxing the device immediately conveys a sense of premium quality and thoughtful design. Inside the main packaging, users discover two distinct boxes dedicated to accessories, a substantial and rechargeable voice remote, and the core unit itself: a sleek, cold aluminum cube adorned with an obsidian glass front. This aesthetic design evokes comparisons to a "Mac Mini on steroids," suggesting a powerful yet minimalist presence that can seamlessly integrate into any modern home entertainment system.

For individuals unfamiliar with amplifier installations, it is important to note that while Wiim provides a comprehensive suite of accessories, users will need to acquire their own speaker wire to connect their passive speakers. However, the convenience factor is significantly enhanced by the inclusion of four banana plugs – pushable cable ends – which facilitate a plug-and-play connection, simplifying the wiring process and ensuring secure, high-quality audio transmission.

The physical connection process is straightforward: the reviewer connected their TV via HDMI ARC, ensuring seamless audio return channel functionality, and then attached their speakers. Upon powering on the Amp Ultra, a distinct feature comes to life: a 3.5-inch color touchscreen displays a QR code. This innovative display serves as the gateway to the Wiim Home app, which orchestrates the crucial network setup. While the app initially struggled to detect the unit, a simple tap on the volume knob quickly brought the Amp Ultra online. Following a brief five-minute software update, the system was fully operational, ready to deliver its audio prowess.

The fundamental appeal of the Wiim ecosystem, much like its competitor Sonos, lies in its versatility and user-centric approach to audio playback. The Wiim Home app acts as the central command hub, offering a myriad of ways to customize the home listening experience. From integrating various smart services to configuring sophisticated multi-room audio setups, the app provides extensive control, allowing users to tailor their sound environment to their precise preferences and lifestyle needs. This flexibility ensures that whether a user prefers streaming from popular services, playing local files, or integrating the Amp Ultra into a larger home automation system, the experience is intuitive and highly customizable.

A Powerhouse in a Compact Form: The Loaded Little Box

Wiim’s product line includes a range of audio devices, and it’s important to differentiate the Amp Ultra from the standard Wiim Ultra. The latter is primarily a streamer, designed to "future-fy" older amplifiers by adding modern streaming capabilities, but it lacks built-in amplification. The Amp Ultra, in contrast, is an all-encompassing integrated solution, packing both streaming intelligence and powerful amplification into a single, compact unit measuring 7.87 x 8.3 x 3 inches. This compact footprint allows it to fit comfortably on most TV stands, shelves, or desks without demanding excessive space, making it an ideal choice for urban dwellings or minimalist setups.

At its core, the Amp Ultra houses a highly efficient Class-D amplifier. Class-D amplifiers are renowned for their efficiency, generating less heat and requiring smaller heat sinks compared to traditional amplifier classes, which allows for their compact design without compromising power output. This internal amplifier delivers a robust 100 watts per channel at an 8-ohm impedance, and an even more impressive 200 watts per channel at 4 ohms. This significant power output ensures that the Amp Ultra can effortlessly drive virtually any passive speakers available on the consumer market, from bookshelf models to larger floor-standing units. Only the most exceptionally demanding, low-sensitivity audiophile speakers might necessitate a more specialized and powerful amplification solution.

The critical task of digital-to-analog conversion (DAC) is managed by a high-performance ESS ES9039Q2M SABRE DAC chip. This component is responsible for transforming digital audio signals from streaming services or connected devices into analog waveforms that can be amplified and reproduced by speakers. The chosen DAC supports high-resolution audio formats up to 24-bit/192-kHz, a specification that surpasses standard CD quality (16-bit/44.1-kHz). This high-resolution capability ensures that listeners can experience their music with exceptional clarity, detail, and dynamic range, reproducing audio as the artist intended.

The rear panel of the Amp Ultra features a thoughtfully curated selection of physical inputs and outputs, designed to offer broad connectivity options. These include an HDMI ARC port for seamless integration with modern televisions, allowing for simplified control and high-quality audio from TV sources. A digital optical input provides connectivity for older TVs, CD players, or gaming consoles. An RCA analog line-in is available for traditional audio sources, such as CD players or turntables, though it’s important to note the absence of a dedicated phono input, meaning turntable users would require an external phono pre-amplifier. A USB port allows for direct playback of music files from flash drives, offering convenience for local content. An Ethernet connection ensures a stable and high-bandwidth network connection, crucial for uninterrupted high-resolution audio streaming. Finally, a dedicated subwoofer output enables users to connect an active subwoofer, enhancing the bass response and creating a more immersive soundstage, especially beneficial for home theater applications.

Wireless connectivity is robust, starting with Wi-Fi 6, which provides faster speeds, greater capacity, and improved efficiency for multi-device environments. The Amp Ultra also supports Google Cast and Alexa Cast, facilitating effortless audio streaming from a wide array of compatible applications and devices, and enabling voice control through smart assistants.

The device boasts compatibility with a "cascade" of streaming services, ranging from popular platforms like Spotify Connect and Tidal Connect, which allow users to control playback directly from their native apps, to network applications like Plex, and even niche services such as SoundMachine. While Spotify Connect is enabled by default for immediate use, other services require manual activation. Wiim explains this measure is implemented to "reduce network load," implying a strategic approach to optimize performance and prevent potential congestion in multi-service environments.

However, a significant omission for a segment of the audience is the conspicuous absence of AirPlay 2 and native Apple Music support. This will undoubtedly be a considerable drawback for listeners deeply integrated into the Apple ecosystem, as it limits direct, high-quality streaming from Apple devices. While Bluetooth 5.3 is available as an alternative, offering a basic connection for Apple devices, it is a lossy compression method and does not offer the same fidelity, range, or stability as Wi-Fi-based streaming protocols like AirPlay 2. For those whose primary listening hub is Apple Music, the reviewer explicitly suggests considering other options, notably mentioning the standard Wiim Amp. This strongly implies that the standard Wiim Amp, while lacking the Amp Ultra’s amplification capabilities, might offer a more integrated experience for those users, potentially with AirPlay 2 support or other specific optimizations for Apple’s ecosystem.

In conclusion, the Wiim Amp Ultra presents a compelling package for discerning audio enthusiasts seeking an integrated amplifier that punches above its weight. Its ability to deliver noticeably cleaner and more expansive stereo sound, coupled with a premium design and a robust set of features, solidifies its position as a strong contender. While the absence of AirPlay 2 and a dedicated phono input might be sticking points for some, the Amp Ultra’s overall performance, seamless setup, extensive streaming service support, and powerful Class-D amplification make it a remarkably versatile and high-value proposition. Its compact form factor, combined with high-resolution audio capabilities and a user-friendly app, ensures it stands out as a sophisticated yet accessible hub for modern home audio.