We're often doing audio calls where each end has a group of 5-10 people.
At the moment both ends are sitting around a lounge, and are using Blue Snowball USB mic's. For the people close the the mic the audio quality is fine, but if we have someone standing behind the lounge, so possibly 1.5m away from the mic the volume of their audio drops off quickly, and even asking them to speak loudly only helps so much. The rooms the calls are done in are fairly open.
We're using Skype or Google+ Hangouts typically. The audio on both ends are using the snowball mic linked above on windows PC's.
Everything I've found on using multiple USB mic's comes across as fairly ghetto. Is getting a mixer with multiple mic's the best option here? If so what can people recommend for a setup like ours?