The Mipro ACT-800 Series is a digital wireless microphone system that offers truly excellent audio quality, achieved primarily thanks to the receivers' fully digital signal transmission via the integrated AES/EBU, DANTE, or AVB interfaces. The 256-bit encryption means transmissions are also protected against eavesdropping. The Mipro ACT-818 5UA is a single-channel receiver with a tuning bandwidth of 72MHz, designed for the wireless transmission of a singer or speaker's voice, principally via one of Mipro's UHF handheld transmitters. It operates in the 482–554MHz frequency range, with a transmission range of up to 100 metres. The 800 Series is a professional wireless system, giving presenters and performers both full freedom of movement and crystal-clear sound at any event.
The single-channel Mipro ACT-818 5UA receiver is incredibly easy to use – in fact, it only has two controls. The large black rotary dial covers almost every function, so setting up and managing the receiver is intuitive and straightforward. Mipro's SmartEQ can adjust the audio signal's frequency response automatically, while ten user presets simulate different microphone capsules. In total, transmission is possible on 224 preset channels in seven groups. The system's dynamic range is 115 dBA, with a transmission latency of less than 2.7ms; this is primarily the result of the high-quality A/D converter, which also effectively eliminates high-level, high-frequency saturation and distortion. Diversity capability not only prevents dropouts but also increases the unit's reception range, ensuring top-class signal quality for every transmission.
The Mipro ACT-818 5UA receiver is just one part of an entire wireless system designed for professionals who require high-quality, reliable signal transmission for their events. As signals are transmitted fully digitally and without distortion, transmission distance does not lead to signal degradation. A stable signal-to-noise ratio is maintained, even over extended ranges. The Auto Channel Targeting function – which is what ACT stands for here – enables automatic frequency synchronisation, eliminating the need for manual tuning and allowing the system to be ready in seconds. The receiver retains the frequency setting until the ACT function is used again, even after being powered off. All parameters are clearly visible on the colour VFD screen, which is easily readable from any viewing angle.
Established in 1995 in Chiayi, Taiwan, by wireless and audio engineer K.C. Chang, Mipro has become a leader in high-quality wireless audio systems. Now run by his son Solomon, the company specialises in wireless microphone systems, portable sound systems, in-ear monitoring solutions, tour guide systems, and camera receivers. In 2014, Mipro Germany GmbH was founded in Hardthausen, near Heilbronn, to enhance customer service and ensure smooth delivery across Germany. Mipro adheres to the latest manufacturing standards and holds top-tier classifications from the Electronics Association. In Germany, the company is TÜV-certified under DIN ISO-9001:2000, a testament to its commitment to quality.
The rear panel of the receiver is equipped with a balanced output for one channel, as well as a digital AES/EBU output. This allows sound engineers to connect both analogue and digital mixers for further signal processing. If the receiver is to be synchronised with a central clock signal or with other devices, there are wordclock inputs and outputs for this very purpose. To the right are a remote input and output (RJ-11) for control via a computer using an external USB interface. Multiple Mipro ACT-818 5UA receivers can be daisy-chained together; the proprietary software is capable of monitoring up to 64 channels on an external device. The two antenna sockets also provide the necessary output should extra antenna amplifiers be necessary.