Online, in response to KWGN News article, May 16, 2014:

With the Red Rocks EDM shows we need to be concerned with how the rocks hold up, too. If this is shaking peoples windows imagine what it is doing to the rocks around the natural ampitheatre. It could ruin it which I think would be a shame and or injure a person. Be responsible!

Also measuring the decibels will not address the problem it’s the base waves that are causing the problems! Most people that live in the area are fine with concerts it’s the base waves in which are disturbing the peace and have the potential to significantly alter the natural ampitheatre and cause serious injury to a patron!

Long-time resident writing to Jeffco commissioners, April 28, 2014:

Until these last 10 years a variance for noise levels was appropriate, but with the constant upgrades to sound technology and the installation of more speakers in the Amphitheater, a different set of decibel limits needs to be applied and enforced.

Comments from Morrison Board minutes, fall 2013

Gradually over the years the noise levels have increased and within the last 5 to 6 years, these levels have reached truly obnoxious proportions with several of the bands. Others I don’t hear at all.

On a scale of 1 to 10 with 10 being the worst, many evenings rate a 20++. The most obnoxious to date this year have been Global Dub Festival on May 17, BassNectar on May 31 and June 1, Global Dance Festival on July 20-22 lasting and beating against my house until 2 a.m. … the bass pounds and actually vibrates my house. Sleep is an impossibility, as is any kind of relaxation.