I am interested in wireless system (LX88 or LX4 receivers) for the conference room in my office. I would like to be able to use two mics at the same time. Will both of these system do that? What does non-diversity versus diversity mean and what are the benefits of one over the other?
Non-Diversity receivers consist of one antenna and one receiver section. These are usually compact and economic. They work well outdoors where there is little reflective surfaces but can present drop outs and reduced range when used indoors due to multipath interference.
Diversity receiver consist of two antennae and two receiver sections. These constantly monitor the signal at each antenna and select the best signal. Diversity receivers are ideal for use indoors where many reflective surfaces are present. They usually cost more but work very reliably under all conditions and have better range.
The LX4 is a professional diversity receiver. To have two mics working simultaneously, you would need two complete LX diversity wireless systems, (i.e. LX14/85 or LX24/58) each on a different frequency.
The LX88 consists of two non-diversity receivers (in different frequencies) in one chassis. It is a non diversity system designed mainly for Karaoke applications where occasional signal drop outs and short range is not a concern. The LX88 allows you to use two transmitters at the same time with just one LX88 receiver.
For the application you described, we recommend the LX4 systems.