I first used the Sabra-Som SSM-1 Universal Shockmount when Michael Capella pulled one out during our BLA-mod Digi 002 DAW shootout . We needed to put two SDCs as close together as possible. The SSM1 let us do it without resorting to duct tape

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Sabra-Som SSM-1 Review
The Importance Of Space In A Mix: Part #1