The NuVo multiroom audio range expands at ISE 2014 with the Player Portfolio-- an IP-based system allowing the integration of wired audio distribution in the company's wireless multiroom audio range.

Designed for the custom install market, the Player Portfolio consists of interchangeable wireless (802.11n) and wired (ethernet) players. It is ideal for large whole home applications, with up to 16 separate zones or individual rooms.

The system handles a variety of streamed or networked sources, with Apple or Android devices acting as controller. It is also compatible with a wide range of 3rd party home control and automation systems, with drivers available for Vantage, AMX, BitWise, Control4, Crestron and RTI products.

German audiophile-grade speaker maker Avantgarde Acoustic takes on iDevice audio with the Zero 1, a (relatively) compact horn loudspeaker set with an iPhone-inspired design.

Standing at 1.5m tall with "polyurethane-based sandwich-structured integral rigid foam" construction, the Zero 1 drops the more traditional horn loudspeaker look in favour of a minimalist cuboid with large conical indentations. Inside are "ground-breaking" 66-bit FPGA processing (reportedly " redefines digital quality through a series of filtering features") and a "recessed spherical wave horn" apparently able to replicate sound produced by a 1m-long traditional horn.

In fact, according to the company the Zero 1 is nothing less than a "fully integrated system" complete with digital processors, analogue-to-digital convertors, power amplifiers and loudspeakers.

Yamaha upgrades the YAS-101 soundbar with the addition of Bluetooth support and mobile device app control and presents the YAS-103, a one-body system featuring dual built-in subwoofers.

Bluetooth connectivity allows audio streaming from any enabled device, while app control (via free Home Theatre Control) allows the adjustment of settings such as inputs and surround modes from iOS and Android devices.

Stealth Acoustics shows off the latest addition to the StingRay outdoor speaker family at ISE 2014-- the StingRay 6, a smaller-sized descendant of the StingRay 8 with 38cm width and 10cm depth.

It carries a 6-inch cone woofer (explaining the name) and a neodymium tweeter for a 2-way speaker handling frequencies ranging from 50Hz to 18kHz. Casing construction is in ASA plastic and fibreglass, with no grills or openings to allow surrounding environment inside.

The enclosure features an environmental protection rating of IP-68, meaning it is both water- and dust-proof. Stealth claims the speaker can operate at temperatures ranging from -18 to 65 degrees C, with a waterproof cable pigtail for further protection.

Also seen at the show is the SA2400 dual-channel amplifier. Rated at 450W RMS per channel, it uses Class A/B output stage and a high-current power supply for long-term reliability.