NAB 2015: Sennheiser shows AVX wireless systems

Sennheiser is introducing its AVX wireless microphone systems for video cameras at this year’s NAB Show.

AVX operates in the license-free 1.9 GHz frequency range, which can be used in numerous countries worldwide. The compact receiver plugs directly into the camera’s XLR, where it switches on using the phantom powering of the camera and automatically pairs with the transmitter. The system immediately sets the correct audio level, matching it to the camera’s input sensitivity and selects a free frequency. If a source of interference appears, AVX will inaudibly shift to a new frequency.

The system is equipped with adaptive transmitting power, so it always uses the power that is required to maintain a reliable connection between the microphone and the camera receiver. This not only ensures a stable link, it also reduces battery power consumption – as does the automatic on/off function.

Power is supplied by lithium-ion batteries which can be recharged via a USB port, and for DSLRs with a jack audio input the AVX systems include an XLR-3/mini-jack adapter cable and the mounting accessories needed to attach the receiver to the camera hotshoe.

“Whether you’re a journalist compiling a show report, a professional videographer filming a documentary or an in-house marketing specialist making a product video – AVX gives you the room to concentrate on your creative work”, said Sven Boetcher, portfolio manager broadcast and media at Sennheiser. “No licensing is required, the system automatically selects a suitable transmission frequency and also makes all necessary settings – that’s true ease of use.”

AVX is available in three different sets: with a handheld transmitter (evolution microphone head), with a bodypack transmitter and ME 2 clip-on microphone and in a professional version with a bodypack transmitter and an MKE 2 clip-on microphone.

For the USA, a special combo pack is issued, which includes both a bodypack and a handheld. The microphone head is an MMD 42, the capsule also found on Sennheiser’s MD 42 reporter’s microphone.

All system components, plus additional items such as a handheld transmitter with on/off switch, are available separately so that users can put together their own tailor-made AVX systems.