In Reply to: Or not posted by E-Stat on December 1, 2016 at 15:46:50:
The acrylic cover is just the start in ARC's herculean effort to control chassis resonances/vibration. They have been at this for a long time and the latest Reference preamps are a big step forward in this regard.
The side metal slaps are thick and heavy. This helps sink resonances/vibration. There is also strategically placed damping material that is hard to see with the acrylic cover in place. The bottom cover is also acrylic.
My Reference 2 has the metal top cover. It definitely sounds better when removed. I hear no difference with the acrylic cover removed on the Reference Phono 3.
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Follow Ups
- RE: Or not - kentaja 06:19:21 12/02/16 (0)