State-of-the-art wireless solution eliminates need for speaker cabling, offers even greater flexibility than the original highly-acclaimed Stealth Wireless System

Cumberland, RI (January 22, 2015)—Alto Professional (, the world’s leading innovator for live performance reinforcement products, today announced the expansion of their Stealth Wireless series. The Stealth Wireless Pro is an innovative system that eliminates the need for speaker cabling and offers even greater performance capabilities with additional professional features.

The Alto Professional Stealth Wireless Pro system adds wireless audio connectivity to any active loudspeaker, obviating the necessity for long, complex cable runs, simplifying setup and teardown, saving time—all without any compromise in audio quality. The system works perfectly well through walls, floors and ceilings, providing setup flexibility that far exceeds conventional hard-wired systems.

Stealth Wireless Pro contains a single dual-channel transmitter with a 2-antenna system (either dual mono or stereo switchable) for true diversity operation. A front panel LCD screen with dual frequency display conveniently shows the RF frequency and channel as well as the AF signal level for each channel.

The trim-sized unit is easily 1U rack-mountable, with two units fitting side-by-side in a 19” rack. The included rack kit includes BNC connectors for attaching antennae at the front of the rack. BNC extension cables are also included. This self-contained kit provides a convenient wireless path to carry a stereo audio signal from the main mixing/listening location to the sound system. The Stealth Wireless Series adds wireless connectivity to nearly any active loudspeaker system. In addition, the Stealth Wireless Series greatly reduces the setup time of a travelling or temporary sound system by eliminating the need for lengthy and unsightly cable runs that may otherwise interfere with the dance floor, patrons, or venue staff.

Stealth Wireless Pro can be set for mono or stereo use. Two XLR + balanced TRS 1/4" combo inputs on the transmitter accommodate the main outputs from nearly any mixing board or console. Each of the receiving units has a single XLR output to send the signal to a powered speaker array or a traditional amplifier-and-speaker combo.

Two receivers are included with the system. They feature slim-line metal housings, dual removable and swiveling hinged antennas, delay line functionality and a Feature Lock Switch to prevent unintended operation once the system is configured. The Stealth Wireless Pro Expander Pack provides two additional receivers for adding more loudspeakers to a system and providing increased coverage. The user may add as many expander packs as needed to accommodate any size system.

“For sound professionals, setup time and simplicity are of paramount importance. But there can be no reduction in audio quality for the sake of convenience. Stealth Wireless Pro delivers exactly what these professionals demand—faster setup/teardown, LCD displays for instant visual confirmation of system configuration, and absolutely uncompromised audio quality. It’s just what they asked for,” said Dustin Plumb, Product Manager for Alto Professional.
Stealth Wireless Pro and the Stealth Wireless Pro Expander Pack will be available in the Spring of 2015 at retail pricing of $599 and $349 respectively. Stealth Wireless Pro and the Stealth Wireless Pro Expander Pack will be on display at the 2015 NAMM Show, Hall A, Booth 6700, January 22-25 in Anaheim, California.

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About Alto Professional
Established in 2000, Alto Professional ( manufactures a full line of world-class Live Performance Reinforcement equipment. Using modern manufacturing techniques, cutting-edge DSP technology, and sophisticated design, Alto Professional’s products are precision-engineered to provide both exceptional performance and exceptional value for performing musicians and live sound engineers. Alto Professional is a member of the premier family of brands known as inMusic (