I've just placed Stillpoints Ultra SS (USS) under the amps in a triangular fashion (one under the transformer and the other two near the rear under each bank of caps). The effect has been well documented on this forum so, I have nothing new to add but to say my sound has gained a fair amount resolution as a result.
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Also attached are images of the pre-amp sitting on USS:
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DAC on USS
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and Magico S-Pods under the speakers:
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