Amp Stand for Heavy Amp on Wood Floor?
- Thread starter Ron Resnick
- Start date
Certainly the titanium for the very small increase in cost over the other two.
I use SRA Virginia Class Reference amp stands with my Lamm monoblocks. In my room they sit on carpet. The piece of the robust footer that goes against the floor is a pointy bolt. SRA includes small metal pucks with a cone shaped indent for using on hard surfaces. If I had hardwood floors it would be simple to stick a thick felt pad (such as you'd use on table leges) on the underside of each puck.
OK here's a simple one maybe... Recently acquired Boulder amps and Clearaudio cartridge working wonderfully but problem is how to stop floor vibrations getting to turntable ( Linn) and causing arm to skip as I approach or move away from it. Once I'm clear of the rack/ttable all is well. Floor is generally very solid but has some spring. Linn is mounted on Apollo glass and steel rack also carrying Boulder pre-amp and Marantz SA10, so well weighted down! Glass shelves are about 1cm/half inch thick and fairly wide at about 36" x 18". I am sure less wide shelves or separate support would help but I have tried every which way to attach a Target t'table platform to our cavity wall and the most lauded devices simply won't hold it.
I have a spare glass shelf (size as above) and wonder whether to try to mount it on the top current shelf in some way to add rigidity.
Sorry if this sounds naive but I don't want to spend 10000s on what is a fairly minor but irritating problem. Grateful for any suggestions! What you guys know about suspension issues is frightening so please be gentle...
Many thanks.
I have a spare glass shelf (size as above) and wonder whether to try to mount it on the top current shelf in some way to add rigidity.
Sorry if this sounds naive but I don't want to spend 10000s on what is a fairly minor but irritating problem. Grateful for any suggestions! What you guys know about suspension issues is frightening so please be gentle...
Many thanks.
I have my 90 lb. Pathos TT on a homemade floor stand made up of the following:
-1/2" thick Corian board with heavy duty felt slider feet to make it easy to move on the wooden floor
-Herbie's Audio Lab and sorbothane discs between the Corian and a 3/4" thick wood board
-Marigo Mystery Feet between the amp and the wood board.
The homemade platform provides isolation (Corian does not transmit resonance) and the Marigo footers drain/tune resonance from the amp.
I had Räke shock absorber feet under two Krell KSA 100. They were not silikon, but some highly damping rubber mixture. You could drop anything on them, it wouldn’t bounce, just drop off. They were ok these days of yore.
I used them more to get more air through the Krell ventilators.
I used them with later amps, too.
Ok, not much more.
On wooden floors I used several stillpoints thingies, later their amp stands, with two Rowland model 8.
I still use them on another wooden floor, with even more stillpoints thingies screwed onto the stillpoints amp stands.
Pretty good, imo. Otoh, I don’t have a comparison with other worthy alternatives.
Their ss ultras work pretty good with a lot of components on wooden shelves or Ikea aptitligs.
I used them more to get more air through the Krell ventilators.
I used them with later amps, too.
Ok, not much more.
On wooden floors I used several stillpoints thingies, later their amp stands, with two Rowland model 8.
I still use them on another wooden floor, with even more stillpoints thingies screwed onto the stillpoints amp stands.
Pretty good, imo. Otoh, I don’t have a comparison with other worthy alternatives.
Their ss ultras work pretty good with a lot of components on wooden shelves or Ikea aptitligs.
Massif amp stands have no weight limit as they feature deep dado joins on the legs. Mpingo legs as well.
www.massifaudiodesign.com
www.massifaudiodesign.com
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+1 on Massif amp stands. Any size and wood you want. My Pass Int-60 sits atop a beautiful mpingo and walnut stand.
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I just purchase a pair of VAC 450IQ’s tube mono blocks; 208lbs of iron, steel, and tubes…. Any recommendations on amplifier stands for these monsters?
We make pretty tough amp stand made of both domestic and exotic hardwoods. We’re dealers of Sound Care spikes as well as Nordost. Both work well with out amp stands and racks.
www.massifaudiodesign.com
www.massifaudiodesign.com
You have to address two issues in order to get the best out of these monoblocks - isolation (decoupling the amp from the floor), and draining and/or tuning the amps' internal resonances. Some (typically very expensive) amp stands (e.g., SRA) do both - most don't, at least not adequately. The alternative to a "do it all" amp stand is a basic isolating amp stand with resonance draining/tuning feet between it and the amp (see 1/5/21 post #28 above). Note that at the very high end the Audio Exotics crowd are doing something similar by combining the Arya Revopods (directly under components and speakers) with the Wellfloat isolation devices:
audioexotics.vanillacommunity.com
Well Float - A new game changer on mechanical vibration management
Last Saturday, I attended a debut audition session of Wagner Silver Signature pairing with one XiangYu subwoofer.
audioexotics.vanillacommunity.com
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Hi Ron,
Just picking up on that last paragraph, I completely agree with you that Sorbothane is a very good material, but I would quality that by also adding, only when used in combination with other materials in order to tune its very high vibration transmission impedance. Putting Sorbothane between a component and a support structure essentially blocks the transmission of vibration in both directions, without doing anything to help drain then convert the component’s innate vibration coming from things like rectifiers and transformers. However when Sorbothane is combined with other materials and bonding strategies, it becomes a super useful viscoelastic polymer layer with high damping and very low frequency resonance capabilities. When used in a structured, engineered way, sorbothane is a remarkable material with both solid and liquid characteristics, which can be applied to create highly beneficial characteristics of the final stand.
I found the attached a useful read to put Sorbothane in some perspective.
I just through of a good way to express my agreement…..I agree that Sorbothane is a very good material when used correctly.
Just adding Sorbothane to a given combination of components guarantees change to the sound but not necessarily improvement. But Sorbothane used in the right form and with the correct materials definitely brings changes that are improvements.
Resonance Frequency and Sorbothane®
The resonance frequency determines how Sorbothane® material both stores and transfers energy between two different forms of storage mode.
www.sorbothane.com
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I currently use the Artesania Exoteryc Aire Platform. It is solid and will support up to 440 pounds. The stands are spiked but the spikes fit into decouplers that will not damage your hardwood floors. I am very happy with them.
Hi Ron,
Just picking up on that last paragraph, I completely agree with you that Sorbothane is a very good material, but I would quality that by also adding, only when used in combination with other materials in order to tune its very high vibration transmission impedance. Putting Sorbothane between a component and a support structure essentially blocks the transmission of vibration in both directions, without doing anything to help drain then convert the component’s innate vibration coming from things like rectifiers and transformers. However when Sorbothane is combined with other materials and bonding strategies, it becomes a super useful viscoelastic polymer layer with high damping and very low frequency resonance capabilities. When used in a structured, engineered way, sorbothane is a remarkable material with both solid and liquid characteristics, which can be applied to create highly beneficial characteristics of the final stand.
I found the attached a useful read to put Sorbothane in some perspective.
I just through of a good way to express my agreement…..I agree that Sorbothane is a very good material when used correctly.
Just adding Sorbothane to a given combination of components guarantees change to the sound but not necessarily improvement. But Sorbothane used in the right form and with the correct materials definitely brings changes that are improvements.
Resonance Frequency and Sorbothane®
The resonance frequency determines how Sorbothane® material both stores and transfers energy between two different forms of storage mode.
@Blackmorec could you tell us how to use Sorbothane in a structured, engineered way so as to maximize its benefit in audio applications? I've not yet experienced Sorbothane as beneficial to audio reproduction. Neither in combination with other materials via constrained layer damping of my own doing nor in any (patented) commercial footer or stand products, preloaded or otherwise.
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