I think you always need an external DSP. Let me share some thoughts on that: The SX80 has enough input/outputs to cover a not too complicated audience. If I connect the microphones directly, I need 3 functions for live sound reinforcement: mute, volume and a compressor. Imagine that you have up to 8 microphones on stage and perhaps also untrained speakers. They won't remember to mute the microphone themselves, and they won't know exactly how loud to speak and how close to hold the microphone when they don't have a headset. So I need a way to mute the microphones remotely and get the volume under control. The best solution is one compressor per microphone channel and then one volume control per channel. The compressor prevents too much noise differences and the regulator then allows me to control it when a speaker is speaking very quietly or loudly. All three functions cannot be controlled by the SX80 (Maybe Mute via a Macro). I'm not happy at the output either, because I can only adjust the content volume with the Touch 10. Actually I need a slider for the microphone sum, content and then a slider for the master volume. Today I can't solve that, because the SX80 doesn't have a way to only output the microphone signal when I activate Reinforcement. It would be better if I could control it all directly in the SX80. A Master Limiter directly in front of the power amplifier is absolutely necessary as protection for the loudspeakers. I don't know what the DSP in the SX80 theoretically offers, but these functions would be necessary to provide a professional audience without an external DSP. ... View more

Hi Andrew I agree with you, but it´s very common to use separate switches within the DMZ or to have separate Switches for the internal and external DMZ. For instance a VCS-E with two physical NICs would be connected to both internal and external DMZ like a proxy. Is there a special reason to not support additional NICs on BE6K? Thanks Tino ... View more