I recently got hold of a UA 6176. Im looking for tips or guidelines for using the compressor. I use in the box compressors without metering so I'd like to start learning more about meters (I do understand that this is a fixed threshold compressor). I've heard that most engineers use the Gain Reduction setting. I'm just using it to record vocals. I would imagine that when preparing the settings you would use both the meter and your ears to find the best settings. Any help is appreciated, have a good day.