Check the listing for details. Valid Point Resonance Control Kit - Standard Kit (3) 2" cones +5 resonance discs. Color: BRASS, Condition: Used. Listed at 379.99 USD. as seen on walkeraudio.comValid Point Resonance Control Kit - Standard KitNo system can sound its best until resonances are under control. aterials commonly used to manufacture shelves and racks, such as marble, granite, glass and most metals, are used for cosmetic reasons and actually aggravate the vibration and resonance problems. Consequently, I’ve tried every kind of vibration control device I could obtain – aluminum, brass, wood, ceramics, compound applications of cones and absorption material. Some helped; some ruined the sound.My quest for the ultimate sound led me to create Valid Points which are designed to provide isolation and to stabilize and control resonances of all components in an audio or video system. This includes analog, digital and video components, as well as speakers, shelves and stands. The improvement in the sound will be amazing. The sound stage will have greater width, depth, detail, bass, speed, extension, and focus.“I just wanted to relay to you just how effective the resonance control discs are….the results are way more than I was expecting!…has dropped the noise floor of an already quiet system resulting in much improved bass solidity/definiiton/agility as well as a more solidified holographic soundstage.” ABB, customer Click on the Reviews tab for more customer comments.Critical ComponentsResonance between components can be additive or subtractive. Therefore, it is necessary for the two most critical components to be treated first, at the same time.Analog: The turntable (if possible) and pre-amp or phono amp and pre-ampDigital: The transport or CD player and pre-ampVideo: The video player and processorAmplifiers and remote power supplies are the next most critical components, followed by: D-to-A converters, active crossovers, shelves, racks and speakers. Standard Kit – three 2-inch cones with five resonance discs. Recommended for most components and speakers. Please review all pictures for complete details, the items included in listing and the condition of item.You will receive the exact item photographed.If you have any questions please ask before purchasing!Please check out our other great auctions!Any purchased item can be picked up at:Silas Deane Pawn Plainville58 East St Plainville CT 06062If you have any issues whatsoever please contact us before leaving feedback!Your positive feedback is greatly appreciated!🙂