Always a good purchase
This is our third purchase of this model (plus an Antenna Combiner) to go with our EW500 Wireless Instrument units. We have never encountered a situation where we could not find a clear frequency (including arenas during NBA televised games, Festivals and Conventions, all using hundreds of wireless systems) with the Sennheiser units.
We especially like the functionality that allows all the units to be connected by ethernet (without a computer or router, just a switch or hub) so one unit can scan for open frequencies and pass the information to the other units for selection. We can scan and program a whole rack of units in under 60 seconds right from the controls on the front of a single unit.
The Sennheiser PC/Mac software allows full control of the units from a computer (using ethernet or wi-fi-must connect WL units to a wi-fi base-station) including scanning and programming frequencies, scanning signal strength over a pre-determined amount of time and saving configurations for recall when switching venues or bands in a festival situation.
The RF Signal Strength scanning is especially useful as one person can start recording the RF strength an walk the stage or venue with a transmitter. When complete, the display (on the computer) will show the strength over time so you can see if there were any dropouts or areas where performers should avoid...or move the antennas and try again until you get satisfactory results.
We really like our Sennheisers and prefer them over the Shure systems we have rented or been provided in the past. The belt packs are very durable and metal cased. Battery life is great as well and several times longer then our 2-3 hour shows.