AV RoomService-EVP (Equipment Vibration Protectors) AV RoomService-EVP (Equipment Vibration Protectors) - Page 3
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  1. #21
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    Re: AV RoomService-EVP (Equipment Vibration Protectors)

    Quote Originally Posted by nicoff View Post
    $45 dollars? That sounds expensive!

    These 2" x 2"x 7/8" isolators are for sale at Amazon for less than $10 for a package of four. I wonder how much different they are. By the way, I use the 4" x 4" under my turntable and they do damp the vibration from the equipment rack.

    DiversiTech MP2-E E.V.A. Anti-Vibration Pad, 2" x 2" x 7/8" , Pack of 4
    They look similar, but the DiversiTech pads are for heavy machinery and made of foam or cork, where EVPs are made of layers of glass fibers working as leaf springs. If you look at the DiversiTech information you'll find that they for machinery starting at 50 psi, so for four 2" pads your equipment needs to weigh about 400 lbs, and four of the 4" would mean 800 lbs. They don't publish minimum loads, and in order for isolation pads to function, they need to be loaded properly- too much or too little weight and they don't isolate. EVPs are designed specifically for audio equipment- meaning that they control vibrations from sub through the audible bandwidth, and their resonant frequency is below the audio spectrum (actually about 3 Hz.). DiversiTech doesn't publish any lab tests, but if they did, you'd likely find resonant frequencies in the audible spectrum, which is not a good thing for noise control or sound quality.

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  3. #22
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    Re: AV RoomService-EVP (Equipment Vibration Protectors)

    Welcome to the forum, thank you for joining.
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  4. #23
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    Re: AV RoomService-EVP (Equipment Vibration Protectors)

    Give these a try under heavier items.

    https://www.alpinehomeair.com/viewpr...c&utm_campaign
    Main System: Analog - Linn LP12, Origin Live DC motor and Controller, SME V arm, Benz Ruby H 2 cartridge, Wright Sound preamp. Digital - Intel NUC I-7, 16 gig ram, Jriver media center 24, Wyrd4 Sound 2V2 SE Dac, Fathom Hard Drives.
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  5. #24
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    Re: AV RoomService-EVP (Equipment Vibration Protectors)

    I just put the 2” x 2” isolators bought from Amazon under my speakers and they work great. I put 4 isolators under each speaker. A less than $13 tweak that works great. That’s what I call good value.

  6. #25
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    Re: AV RoomService-EVP (Equipment Vibration Protectors)

    I’ve used the cheap 2x2 isolator blocks mentioned here for quite some time in various capacities, both alone and in conjunction with Isoacoustics disc style isolators. I was able to recently compare those directly against the EVP under a preamp and a DVD player, each weighing around 10 lbs and in more and less vibration sensitive locations, respectively, on a sturdy Salamander Designs rack. After letting the EVPs settle for several hours — I did one component then both — the all-around improvement was substantial. I’ve found the cheap ones are useful under small peripherals such as a cable box and LPS, as well as to physically isolate and separate cables, but for main gear they are not in the same class as the EVP. I don’t know why the small EVPs have gone from $29 to $45 each in a relatively short time, unless the price of glass fibers has leaped or perhaps to take advantage of good reviews, but at the current price they are still relatively inexpensive as good high end audio tweaks go these days.
    Main: Lampizator Atlantic TRP dac, Supratek Chardonnay preamp, Ric Schulz modified Oppo 203 with Oppomod I2S card, ATC SCM19A active speakers, PS Audio PowerBase, P15 Regenerator AC-12 power cords, MG Audio AG2S2 XLR and RCA ICs, Purist Audio Design Neptune S/PDIF and HDMI cables, iFi S/PDIF Purifier & Paul Hynes SR4 LPS, Audio Magic Ultimate Beeswax and SR Orange fuses, Furutech GTX-D (R) outlet, Samsung F8000 HDTV, Audioquest Carbon HDMI cable, CATV with Tii-220 cable filter, JL Audio e-110 subs in waiting

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  7. #26
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    Re: AV RoomService-EVP (Equipment Vibration Protectors)

    Quote Originally Posted by highstream View Post
    I don’t know why the small EVPs have gone from $29 to $45 each in a relatively short time, unless the price of glass fibers has leaped or perhaps to take advantage of good reviews, but at the current price they are still relatively inexpensive as good high end audio tweaks go these days.
    The cost has incrementally increased as manufacturing costs have risen. Most notably, we now stitch the EVP core so they can't split open if mishandled, the plates are now laser cut, we use a new adhesive for rubber finishes, the painting process is much higher quality, etc. I believe they are still one of the best values in audio. Getting the room to be quite is very revealing!

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