The RF Venue 8-Channel In-Ear Monitor Upgrade Pack contains a COMBINE8 8-channel IEM transmitter combiner, a CP Beam helical antenna, and a 25' low-loss RG8X coaxial antenna cable. With components engineered to work seamlessly together, this complete professional system enables you to combine signals from up to 8 IEM transmitters into a single helical antenna to effortlessly improve the RF and audio performance of your multi-channel wireless in-ear monitor system. The COMBINE8 brings together up to eight in-ear monitor transmitter signals into a single rear-panel mounted antenna connector. It is designed to work with any brand of IEM transmitter set to transmit at 50mW or less as well as any type of directional antenna. It also provides DC power to up to 8 IEM transmitters with an included external power supply, removing the need for wall warts. Combining IEMs together on a single antenna gives you a better RF performance than using multiple antennas, which can interfere with each other and cause serious RF and audio-signal problems. The CP Beam antenna steps up your IEM system's transmitting power by nearly eight times, focusing the signal directly on your performers and not scattering the signal where it is not needed. This allows you to use the lowest possible setting of your transmitter's output power, which greatly reduces intermodulation interference on both your wireless mics and your IEMs—improving RF signal and audio quality. Additionally, the helical antenna, unlike a whip or paddle antenna, removes polarization fades, which is the leading cause of signal dropouts. The CP Beam antenna is easy to set up and transport, fitting in a 3 RU rack drawer and weighing just 2.5 lb. It compresses for easy storage. Unlike other bulky helical antennas that require flight cases, the CP Beam is quickly deployed and stowed.