Your browser is out-of-date!

Update your browser to view this website correctly. Update my browser now



AKG Acoustics has revealed the IVM 4 UHF wireless in-ear monitoring system with integrated dbx digital signal processing. Using the same system expansion components as AKG’s WMS 400 and WMS 4000 systems, the Harman HiQnet-ready IVM 4 system is an designed for audio professionals in the live-sound market.

An all-in-one solution for professional in-ear monitoring, the SST 4 includes an integrated dbx compressor, an equalizer offering a large number of EQ presets and in-ear-optimized binaural room simulations that provide musicians, vocalists and presenters with high-performance signal-processing flexibility for a natural listening experience.

The IVM 4 set includes the half-rack-size SST 4 stereo transmitter, an SPR 4 stereo bodypack receiver and pair of IP 2 earphones. The SST 4 stereo transmitter features selectable RF power output up to 100 mW and preprogrammed frequency sets; it accommodates use of up to 14 channels in each of its 30MHz bands. The status display provides immediate monitoring of transmitting frequency, selected RF output power, audio input levels, gain level and all activated sound-processing modes.

The SPR 4 bodypack is housed in a magnesium case and has Auto Setup and Environmental Scan features for finding clean, intermod-free frequencies. With an operating time of up to seven hours, users can quickly and easily view battery status and RF signal strength on the bodypack’s display. As with AKG’s other wireless microphone systems, the SPR 4 bodypack can be used with rechargeable batteries utilizing the WMS 4000 system’s CU4000 dual-bay charging station for added convenience and economy. Rounding out the IVM 4 system are the IP 2 earphones, designed to provide excellent sound reproduction and maximum isolation from ambient noise.

The IVM 4 system can be equipped with a wide array of system-expanding accessories. The SPC 4 multicoupler allows users to combine antenna signals for up to 16 SST 4 transmitters. Also available are the SRA 2 W, a wide-band directional antenna, and the RA 4000 W, a wide-band omnidirectional antenna.

For more information about AKG, visit For more new product announcements, visit