Scott Robertson has posted a review of the Sunshine Company, Ltd. S50 Underboard loudspeaker isolation platforms ($170-$230) at Positive Feedback. His conclusions:
“Overall, I would adjudge the improvements that the Sunshine V50 brought to these two systems to be worthwhile. If you have a need for better isolation in your system, but physical clearance/price are considerations, then I would recommend that you check out the Sunshine V50. It’s a helpful tool for upgrading your system.”
You can read the full review here.