AV Roomservice EVPs under the REL sub...
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Puma Cat
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Man, I cannot believe the improvement putting the EVPs under the REL sub made.
They made the room notably quieter. This translates to notable improvement in transparency, detail, pitch and timbre accuracy, and resolution in the bass, mid-bass, lower mids, mids, and upper mids through the entire presentation.
This cartoon from Norm Varney at A/V Roomservice depicts what they do quite well.
They made the room notably quieter. This translates to notable improvement in transparency, detail, pitch and timbre accuracy, and resolution in the bass, mid-bass, lower mids, mids, and upper mids through the entire presentation.
This cartoon from Norm Varney at A/V Roomservice depicts what they do quite well.
Jack
Active member
Joe
I've got two sets one under the DAC and one under the preamp and they do work well. I am only using the tripod method with mine though instead of four. Probably work just as well under speakers on wood, tile or suspended floor similar to Orea's just wouldn't be any attachment.
I've got two sets one under the DAC and one under the preamp and they do work well. I am only using the tripod method with mine though instead of four. Probably work just as well under speakers on wood, tile or suspended floor similar to Orea's just wouldn't be any attachment.
Puma Cat
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Start here...there is lots of information to review. Also watch the videos.
EVP Equipment Vibration Protectors | A/V RoomService, Ltd.
Norm is is one of the leading acoustical engineers in the United States, so everything is backed up by testing and data.
Also watch the videos...
Joe, Norm says if you are going to start some place, start by putting them under a sub.
Then, if possible, under speakers.
They also work well under components and specifically under components that are particularly susceptible to vibration. So, a good place to start under a component would be DAC because the crystal oscillators in DACs are particularly sensitive to vibration. The EVPs brought a notable improvement to my Gungnir MB DAC when I put them under it.
Audiophilehi
Member
Hi Jack...I’m using them under my preamp and dac in the triangle method as well with good results.
Audiophilehi
Member
Hi Stephen...I currently have my sub sitting on the original Stillpoints component stand. I’ve been thinking about adding EVP’s or Gaia’s. I wasn’t aware of the cyber Monday deal Av Roomservice was offering. I probably would have taken advantage of it.
Puma Cat
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Hi Paul,
I'm still studying and learning about this area, but my understanding is that different components, depending on their function or construction, need different things. With respect to speakers and subs, isolation is key, so that the energy from the drivers pressurizes (i.e., vibrates) the air, but not the floors or walls. EVPs under subs and speakers makes the room quiet.
With respect to components, depending on their construction, and with respect to mechanical damping, they mayt need different things. Components will little or no mechanical damping can be quite susceptible to vibration, e.g. my SOtM network bridge, which benefits from effective mechanical grounding (e.g. Stillpoints) to a dense platform (e.g. rock maple, slate, granite, etc.) to effectively transfer the vibration energy away from that component. Components with crystal oscillators are particularly susceptible to vibrational (as well as thermal) energy, for example. My Schiit Gungnir DAC, which also has crystal oscillators, also works well with Stillpoints under it.
Other components that are well-damped with respect to the impact of vibration, would generally benefit from isolation.
So, presently my working hypothesis is that Stillpoints are good for mechanical grounding; EVPs are good for isolation.
Subs need isolation.
Puma Cat
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- #11
The Black Friday and Cyber Monday deals were only promoted on AV Roomservice's Facebook page. Not on the website.
With respect to the REL, that was Norm Varney's recommendation of where to start first; and I trust what Norm says. Norm's "the man" when it comes to acoustics and acoustical engineering.
mep
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Man, I cannot believe the improvement putting the EVPs under the REL sub made.
They made the room notably quieter. This translates to notable improvement in transparency, detail, pitch and timbre accuracy, and resolution in the bass, mid-bass, lower mids, mids, and upper mids through the entire presentation.
This cartoon from Norm Varney at A/V Roomservice depicts what they do quite well.
Who drew the cartoon?
Jim Smith
Member
Not to say that they won't help with a ground-level solid floor, the EVPs are most noticeable as an improvement when you have a suspended floor, such as over another room or basement. In such cases, the improvement is H-U-U-U-G-E.
CPP
Active member
A solid 4" concrete floor covered with tile makes for an interesting acoustical challenge., even using wool rugs and treatments.
What are you using now, on what sub?I have hardwood over concrete and will find out soon if the EVPs would help or not