https://positive-feedback.com/audio-discourse/impressions-the-critical-mass-systems-qxk-mk-iii-rack-system-and-black-diamond-amp-stands/ A Creative Forum for the Audio Arts Wed, 22 May 2019 22:01:26 +0000 hourly 1 https://wordpress.org/?v=6.6.2 https://positive-feedback.com/audio-discourse/impressions-the-critical-mass-systems-qxk-mk-iii-rack-system-and-black-diamond-amp-stands/#comment-705 Wed, 29 Nov 2017 23:49:16 +0000 http://positive-feedback.com/?p=16803#comment-705 […] first visit was in the early spring, when Joe brought in phase one of the project. I reviewed this back in Issue 90. Quoting from my review, this initial installation […]

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