I have tried hockey pucks under speakers - NOTHING - I have also tried Ayre/Cardas myrtle wood blocks (which work under components) but under my speakers, they degraded the sound and shot the soundstage to hell.

I've tried all sorts of cones - metal - composite - carbon fiber - you name it, under my speakers, and they all worked in varying degrees - but in my opinion - in my system. nothing has worked nearly so successfully as SYMPOSIUM SVELTE SHELVES AND ROLLERBLOCK JR'S.

I don't find the need to further isolate my components. My equipment racks are Arcici Suspense Racks - which suspend all the shelves on rods, supported by inflated rubber inner-tube devices, and they isolate the components very successfully - except - I do use Goldmund cones or myrtle blocks under my CD/SACD players to keep any vibration from transferring to other components on the rack.

I've had the Arcici Racks for over 10 years and they continue to perform extraordinarily well. They were first reviewed in The Absolute Sound, and Harry Pearson used them exclusively in his own systems (may well still use them - I don't know). The only thing necessary to keep these racks at top performance is to check the "tire pressure" occasionally.

What I am saying is that Hockey Pucks may not be a universal answer for everyone - at least they aren't for me.

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Julian


MAIN SYSTEM: Avalon Eidolons and/or Audio Physic Caldera III Loudspeakers, Spectral DMC 30SL Preamp, Spectral DMA 250 Amp, Spectral/MIT interconnects and speaker cable, STAX SR-404 Signature Electrostatic Headphones, STAX SRM-727 Headphone Amp, Basis Debut V Vacuum turntable, Walker Precision Speed Controller, Graham tonearm, Graham Nightingale II Cartridge, PASS - X-ono Phono Stage, Esoteric Modified-X03 CD/SACD Player, Exact Power EP-15A & SP-15A power regeneration and conditioning devices. Symposium Acoustics Svelte pads & RollerBlock Jr's under speakers. ASC Tube Traps, Arcici Suspense Rack System


UPSTAIRS SYSTEM: Sonus Faber Guarneri Memento Speakers, JL Audio F112 Sub, McIntosh MA7000 Integrated Amplifier, McIntosh MVP871 Universal Disc Player, OPPO BDP-95 Blu-Ray Player, VPI Scoutmaster with periphery ring clamp, VPI SDS Motor Drive, Koetsu Pro IV cartridge, Mark Levinson No. 25s phono stage, Wadia 170i Transport with a Meridian Bitstream 203 DAC, VPI HW-17 Pro Record Cleaning Machine, Five Richard Gray RGPC 400 devices scattered around in the two systems, Arcici Suspense Rack System, Discovery Essence and Essential Cables, 14,000 ± LPs .