Nobsound springs - load range

@ryder Thanks for posting your experimentation and results. Very informative to read.

I am a total beginner here. I only use three under components and I pick where they go for stability and ignore the existing feet. I took the feet off all my subs and only use three nobs for them as well.

So far as springs go, since this essentially is a static application as I see it (I doubt I can see electronic vibrations…), as long as the spring is compressed down into the specified ‘travel range’ it doesn’t matter how much or how little compression (or squashing) of the spring happens. The rate remains the same.

But, the Nobsound supplied springs seem to have compression rate of about 20-25lbs/inch which seems far, far too high to me, with far too little travel. Somehow I think I want a ‘pillow’ spring where there is higher travel per pound. But is this erroneous?

QUESTION?    To achieve the best isolation for components or speakers does one seek a very high compression rate, assuming the weight will compress the spring down into the ‘travel range’ of the spring chosen. What is the ideal resonance (although I cannot measure it)?

And to get to that resonance, what makes more sense, lots of low rate springs or one high rate spring?  Both must be utilized in their respective ‘travel’ ranges of of course. I am about ready to buy a slew of 9.3lb springs to have more ‘bounce’ for push downward. Is this a logical thought?  I’d totally appreciate any thoughts from the more science minded out there.  Thanks.    Mark

@hm9001

I measured the compression of the springs, it takes ~2.5 kg per spring to compress it to 50%. Based on 50% compression target, this yields the following sweet spot configurations (only stable ones, total equipment weight):
- 3 units, 3 springs each: 22.5 kg
- 4 units, 3 springs each (or 3 units, 4 springs each): 30 kg - 4 units, 4 springs each: 40 kg
- 3 units, 6 springs each: 45 kg
- 3 units, 7 springs each: 52.5 kg
- 4 units, 6 springs each: 60 kg
- 4 units, 7 springs each: 70 kgLoad can be considerably higher than expected (somewhere I read about 36kg, which is presumably for 4 units).

May I ask if your Nobsounds are the aluminium alloy versions? I found that it takes 1.6 kg per spring to achieve 50% compression. Have you measured the gap between the top and bottom aluminium pieces? Without load (0% compression), the gap is 14mm. With 50% compression, the gap would be 7mm. Are you getting these same numbers?

Hm9001 has some hard data and some mock it? Ugh. 

I have 16 total Nob springs and 4 of the knock off version that are smaller and have acrylic (I guess) tops/bottoms. I have been playing with spring load and trying them under multiple components. To my ears they added some color I didn't like under my Monoblocks but I think they may have improved the sound a bit under my streamer and Dac. Gonna move them in and out to see if I feel the same way over time.

In the end...its a cheap and fun thing to experiment with. 

Gents,

I have found the best spring configuration after 5 days of experimentation. In brief summary, the Nobsounds have brought an appreciable improvement to my system. They are used on a Class A integrated amp, 4 footers under the components’ feet. I have another set of Nobsounds which will be tested with the DAC and pre/power amps in another system in due time.

I initially started with 6 springs on each footer. Due to the unbalanced loading of the amp which caused an uneven compression of the footers (the amp is heavier at the front), I later switched to 5 springs @ front, 4 springs @ rear. For ease of illustration, here’s the configuration I’ve tried in chronological order with their corresponding gap between the top and bottom aluminium alloy pieces;

6 springs @ front and rear (8mm gap)

5 springs @ front ; 4 springs @ rear (7mm gap) = 50% compression

4 springs @ front ; 3 springs @ rear (5mm gap)

3 springs @ front ; 2 springs @ rear (3mm gap)

I was expecting the best result with the smallest gap but that didn’t work for me. I then slowly got back up to 6/5 before finally settling with 5/4 which is the best sounding set up to my ears, in my system. Coincidentally, this configuration gave a 50% compression of the springs.

The sound quality is noticeably different with each spring set up. In brief summary, too many springs (low compression) will produce a sound that is lean and light with reduced bass weight. Too little springs (high compression) reduced the airiness and 3-dimensionality. When it sounds right, you will know it and everything just sounds great.

Impressions as follows;

6 springs @ front ; 5 springs @ rear,

- overall presentation is lean and light with certain hollowness to the sound

- bass weight is reduced as it lacks punch and drive

- slight smearing in the midrange

- percussion sounds soft and lacks bite

5 springs @ front ; 4 springs rear (best sound)

- best sound from this set up with the springs at 50% compression

- everything just sounds right as music just flows out freely from the speakers

- notes have more energy with a tube-like quality

- treble sounds airier and has better extension

- improved macrodynamics, airier and 3-dimensional sound with space between instruments

- thwack of drums and percussion all sound snappier and real

- bass weight is back with improved definition and punch

4 springs @ front ; 3 springs @ rear

3 springs @ front ; 2 spings @ rear

- reduced airiness and 3-dimensionality as the sound is slightly dull and flat

@ryder yes I have the aluminum Nobsounds. I just remeasured, the gap unloaded is ~14mm, the gap with 1 spring and 2.5kg load is ~7mm. Maybe the springs in your Nobsounds are different.

@hm9001 appreciate the confirmation. Perhaps the springs in my Nobsounds are different, which is certainly weird if that’s the case. Or perhaps there is error in my calculations. My amp weighs 28.4 kg in the spec sheet, and it takes a total of 18 springs to achieve 50% compression (~7mm gap). 28.4kg ÷ 18 = 1.6kg per spring. The gap with 1 spring and 1.6kg load is ~7mm in my system.

Ignoring the discrepancies in the compression of the springs, I presume ~50% compression of the springs is the sweet spot. Perhaps not for all systems as some have settled with 1-2mm gap (>90% compression). The type of component may be a factor too ie. DAC or CD players requiring higher spring compression while amps requiring lower compression, an assumption on my part.

I’ll be testing the 2nd set of Nobsound on the DAC and another pre/power amps soon to find out myself.

The Rate I calculated for @hm9000 was right at 20lb/inch of travel for the spring measured.

Based on your specs, @ryder I calculate about 12.6lbs per one inch travel for the Rate of Compression.

As I understand it, so long as you are in the travel range (not fully compressed) then no matter how large the gap is, the force to move the object further remains the same or constant. I'd guess leave it in the middle but no one seems to have any idea why. Can the 'different audible results' be identified other than 'pre-knowing' how many springs are being used...  

I'd still love a thought on best Rate of spring to use. I ordered 100 springs .75" long with a 9.3lb/inch compression rate. These will allow a lot more travel of the component (or more soft 'floating'). 

Of course I do not know whether one wants one's equipment on a very stiff, barely springy bed, or on a highly springy and very flexible bed (assuming stability). This is the question I'd love someone to weigh in on with knowledge of resonances.

Is there any difference in spring tension between silver or blue end caps

@musicaddict I try to put in some physics about spring mass systems (have to dig a little since this is long ago since I had to deal with that in my engineering study).

A spring extends or contracts in a linear relation with the force you are applying, or the other way round, the force F the spring excerts is proportional to the distance x that you are forcing the spring from its neutral (unloaded) position:

F = kx , where k is the spring constant. Your assumption that the force stays the same is wrong, the force gets higher the more you compress the spring. That is the reason why it settles in at a compression that depends on the mass you put on top.

From the formula above I can calculate k for my springs: k = F/x. Putting 2.5kg and 7mm gives me:  k = 3500 kg/s^2 (sorry for international units, but as continental European I cannot get used to imperial ;-)

Now let's calculate the resonance frequency, it is given by formula

f = 1/2Pi  sqrt(k/m), where m is the mass you put on the spring. You can see that for the same spring (or amount of springs), the frequency gets lower with higher mass. At the same time if you put two springs in parallel, you double the effective spring constant, and, with the same mass, increase the resonance frequency.

Putting the values for my DAC and spring configuration in the equation (mass ~3kg per spring), I get a resonance frequency of a little more than 5Hz, which is about what I would estimate when exciting the DAC and watching it swing.

Which resonance frequency does one want to get? The springs should decouple/isolate the component from its base, so that no vibrations are transmitted either way. The spring mass is a low pass system, it decouples above the resonance frequency, but kind of transmits vibrations below. What you want to avoid is transmitting vibrations for audio frequencies, so the resonance frequency should be below the audio band.

@hm9001, I think we agree but that I did not state it clearly enough. If a single spring has a 4kg rate per 4cm, then from the resting point of a 1kg wt at 1cm, it would take another 1kg of weight to depress 1 more cm additional. It's what I have heard referred to as a 'constant rate' compression spring.

(Different is a 'progressive rate spring' where the rate changes, and increases as you depress. A common example was fork spring replacements in motorcycles for a nicer ride.)

Thanks very much for the above info on frequencies. It makes sense and I will work to further digest the resonant frequency issue. This sure gets me started. It will be interesting, after I do the math conversion to see where the 9.3 lb springs may get me or not.  Thanks again.

My point on 'constant force' should have been 'constant additional force' for movement of a constant size, additionally. 

With a constant rate spring the additional force (or weight) from (equidistant positions) position 3-4 should be the same as the additional required to move from 5-6, for example.

My wondering was that if the equipment (wt or force) sits in the operating range of linear motion of the linear spring will require a similar push, etc. to move it whether it sits up high or low (while remaining in range).

With a static application what changes (or not) from riding high in the range to riding low in the range. I guess those were the results from changing out numbers of springs. Interesting for sure. Thx.

I had 4 Machina Dynamica springs under everything prior to buying the Nobs. Well, I started pulling springs out late yesterday with 3 springs/ 3 Nobs under the Oppo first (decent improvement). Today I got busy starting with my LSA Voyager GaN 350 amp (OMG!), then my Audio Alchemy DDP-1 + PS 5 (here I only used 2 each X 3). This leaves my Core Power 1800 PLC, which currently has 4 Machina Dynamica springs.

I am totally amazed. I now have authoritative bass- mid bass, which gives the music more drive, putting a big smile on my face. CD is Lyle Lovett The Road to Ensenada. One of my torture test CDs is Jennifer Nettles Playing With Fire. It's on as I write this. Where many of the songs sounded thin, so far it sounds natural, like she's in the room .

There are a couple LSA Voyager threads, and a few guys mentioned they found it slight of bass: SURPRISE.

So thanks for this thread!!!!  I had them under all my kit, but never thought to experiment and pull springs out.

Great info thank you from a fellow flat 🌎 

Tweak1 has nailed it. All the calculations are a waste of time. Even the bit about being compressed half way is just a guide or starting point. Another guide or starting point, the component should bounce very slowly, around 1 to 3 Hz. Just a guide. Only thing that really counts is the sound. There is no substitute for listening.

Most components have weight unevenly distributed. Springs don't have to be placed symmetrically. Don't have to be 4 per component, 3 might work better. Only one way to find out.

The main reason for all this trial and error tuning is Nobsound are not damped. Because of this they have a resonant frequency that changes with load. The same springs can give an extended top end, or big bottom end, or be tuned for a balanced sound. All just by changing the number of springs. Or adding weight. Mahgister does that, tunes his to within 1/4 pound.

Also the Nobsound design is more vertical isolation, with not much in other planes. That is the tradeoff for having terrific performance for cheap. 

Townshend improves on all this, with damping that improves performance as well as flexibility. Height adjusts by turning the top of the Pod. 

steakster, if you like piano on your system with springs, you should see the video where they put a piano on Pods! 

Millercarbon is right...

in my case for eaxample,because of the structure and particular resonance of the box speakers for example, the right amount of load damping must be fine tuned BY EARS, like the springs compressive force applied by the weight load on the springs themselves...

They are in my case then , an optimal weight load of concrete around 80 pounds over my speakers, which must be tuned BY EARS in an optimization process  in relation with the speakers densities and resonant geometry and  also in relation to the precise compressive force which could be optimally applied to damp the resonance of the speakers and not only isolate from the the external vibrations...

This fine tuning is an incremental process of listening experiments distributed on a week....I first fine tuned for  the  optimal load of  concrete for the speaker box without springs...

After that adding the springs under the speakers i ADDED some "light " load playing in an optimization process near around 20gram toward 100 grams...

Thanks for the ideas for dampening the Nobsound springs, this works great. The PTFE tape (wrapped around each spring) did not have much effect in my case (However, I tried it only on my DAC).

The dampening with the ear plugs however does magic, the effect for the money can hardly be beaten (I used the ones from 3M, 30 pairs for 10 EUR). It had similar effects on my mono blocks and on my DAC (a little less). The effect (compared to undampened Nobsound springs) is: Foremost, I get a blacker background, there is more air around instruments. Bass gets clearer and more structured, and soundstage gets deeper. In total, music gets more emotional.

I also tried another tweak: Since the springs did make some audible noise when you compress them (metal of the spring scratching against the bore in the aluminum block), I lubricated the bores with PTFE spray. This improved the Nobsounds quite a bit further.

In a thread *** Specifically *** to discuss  Nobsound Audio products the usual suspect starts **** Pedalling **** a competitors product 🙄

All the calculations are a waste of time.

I always get cautious when hearing such dogmatic statements. I would rather consider starting in the dark and doing erratic trial and error on all possible permutations of changes to different variables of a system a waste of time.

I prefer to have at least a basic understanding (or sometimes a hint or theory, e.g. 50% compression for the springs) of the variables and dependencies of a system and how they probably work. It is always good to derive a starting point and some hints/directions for experiments. This saves time in my opinion. And yes, the fine tuning and verification needs to be done by ear. The learnings should then be used to adapt the theory (maybe it's then 75% compression or even different compression for different components or something totally different). This can at least help others for their systems.

Only repeating statements like "the only way is by hearing" renders this forum useless.

Right folks, a little update on the Nobsound experiment under the DAC. This one is a lot trickier as the component is rather lightweight at 15 lbs. I started with 3 footers with 1 spring in each, all in direct contact with the chassis. The springs aren’t compressed enough and the sound got worse. So I did the unimaginable. Guess what, I am now on 2 footers with 1 spring in each. One would think how the component would be stable under 2 footers. In reality it isn’t but the set up is unique since the power cord(which is a very stiff cable) is lending some pull to the DAC which keeps the stability intact. The component is in a near perfect horizontal plane although there’s only 2 footers below it.

Even with 2 footers @ 1 spring each, the gap is rather high at ~7mm (50% compression). This is the maximum compression that can be achieved as it’s impossible to support the component with 1 footer.

Very interesting observations with some very positive results but I still need more time to determine if the 2nd set of Nobsounds will get to stay with the DAC on a long term basis. The Nobsounds are currently up against Finite Elemente Spider footers which use ceramic balls as a form of isolation. So far I would say there’s a difference between the two but will see if it’s significant enough to swap the FEs out for the Nobsounds. I could live with either as the sound quality is already great with either one. More reports later.

Before I wrap up, I have to say that the addition of the Nobsounds to each component in the system has added something to the sound. If I could find the simplest way to describe it, I would say the Nobsounds make music sound more analog. Less digital. They add more body to the sound which makes music sound fuller. If the set up is done correctly, you get this improvement without losing dynamics and bass weight. Otherwise, the sound will get soft and mushy, sounding lean, thin and 2 dimensional with reduced bass response.

In a thread *** Specifically *** to discuss  Nobsound Audio products the usual suspect starts **** Pedalling **** a competitors product 🙄

I'm sure the Townshend Pods are great and superior to the Nobsounds, but at their current prices they only fit higher end systems. They may cost more than the component that they would be supporting in modest or budget systems. 😁

On the other hand the Nobsounds are rather affordable and people can buy several sets to support all their equipment if they want. 😉

@tweak1 Well, I started pulling springs out late yesterday with 3 springs/ 3 Nobs under the Oppo first (decent improvement).

The streamer/DAC I was talking about is also an Oppo105 (heavily modified: clock, improved XLR output stage, IEC inlet, LPS, fuse). The  best result I get with the Nobsounds is 4 units with 1 spring each, springs dampened with ear plugs and bores lubricated with PTFE spray. On the left side the springs are more compressed (as the transformers are on the left). Since I cannot further reduce the number of springs, I will maybe try with some weight on the right side.

@ryder Guess what, I am now on 2 footers with 1 spring in each. 

Have you tried to stick with 3 units and put some weight on your DAC to reach the desired compression?

Have you tried to stick with 3 units and put some weight on your DAC to reach the desired compression?

No I haven't. Will need to find something suitable to be added as weight. That will come later. 

I have a rock in my second system phono amp. A rock! From the yard.

@noromance    “I have a rock in my second system phono amp. A rock! From the yard.”
 

👍 Love it. Now that is a cost effective tweak. 
 

I suppose now we need to discuss if a piece of wood might not be better (think Maple Shade)… or what kind of rock. I am thinking Eclogite might be best… or worst… it is heavy and dense. 
 

Sorry, if I didn’t bring it up someone else would. 

@hm9001 

Nice. I have an aftermarket Furutech IEC hard wired with pure silver to the power supply and a silver jumper bypassing the 110/220 switch. The LPM has a good size toroid. I have 2 springs centered under it, a single spring directly under the CD tray and 2 springs near the back output side

I always get cautious when hearing such dogmatic statements. I would rather consider starting in the dark and doing erratic trial and error on all possible permutations of changes to different variables of a system a waste of time.

I prefer to have at least a basic understanding (or sometimes a hint or theory, e.g. 50% compression for the springs) of the variables and dependencies of a system and how they probably work. It is always good to derive a starting point and some hints/directions for experiments. This saves time in my opinion. And yes, the fine tuning and verification needs to be done by ear. The learnings should then be used to adapt the theory (maybe it’s then 75% compression or even different compression for different components or something totally different). This can at least help others for their systems.

Only repeating statements like "the only way is by hearing" renders this forum useless.

Very well said @hm9001. By design, comp springs "generally" should be in the 80% ~ compressed from free length to get within the low single digit freq.(<5Hz). Of course this gets one in the ballpark and will require experimenting etc.. but for someone to say

"All the calculations are a waste of time." 🤦‍♂️ ooy.

Granted, not as great a waste of time as reading people arguing about it not being a waste of time without giving so much as a single reason why such calculations are useful. But still a waste of time.

Because it takes far less time to try and see. Which in the end is what must be done anyway. No calculation known to man will tell you what will sound best under every single component. The only way to find out is to try and listen. Therefore, as a matter of simple air tight logic, waste of time.

That said, I encourage some of you to do so anyway. Better use of your time than opining here.

I disagree, this time-rare, with mc.  There's nothing wrong with looking for the best starting point via applied science, at least not IMHO. Others can try one hundred permutations and and individual audible testing if they so choose. The key is getting to the right place in the end.

OP now you have tried ear plugs. NOW take the upper and lower portion along with the springs, and put the pocket side down. Spray everything with aerosol Flex Seal, reinstall your gummy puffers (ear plugs) in the springs and assemble.. 

Try that. Suspension 101. :-) Added another 6-8.00 usd for great dampening on your vibration and accumulator (shock) control.. 

I'm working on a budget pneumatic (air ride) system. :-)

Regards..

At peanuts cost i will try it myself.... Thanks to the old mechanic who feed chickens all day long....😊

@mahgister +1 sir.

Peanuts, Master M, peanuts.. :-)

Regards

waste of time without giving so much as a single reason why such calculations are useful.

No one is arguing and qualified it with

Of course this gets one in the ballpark and will require experimenting

No one is claiming a calculation is the end all be all, ooy

This was all just to say, it will prob SAVE time doing a few quick calcs to get things in the ballpark instead of trying 1000 unnecessary permutations. Comp springs are engineered to operate within the given design parameters so as to work at freq ranges.

I use springs and roller bearings on all my gear, not sure what the issue is with the discussion at hand.

Having removed lots of springs from the Nobs, under the various components, while the music was clearer, I lost the grounded aspect/weight. 2 things left speakers (a 2 man job) and my Core Power 1800 PLC, which is at the bottom of my vertical rack. I've been waiting for help, but last night listening to Blues Brothers, while the clarity was amazing, but overall the weight/soul of the music was missing. This is a very poorly lit room, and access to the back of the rack is difficult in daylight with all the cables, BUT, I decided to replace the 2 Machina Dynamica HD springs in the front with Nobs (fully sprung): WOW. The missing weight magically returned, SHOCKINGLY SO. Today's task is to maneuver behind the rack and insert 2 more

After hearing the benefits of the Nobsounds in my system, I am now an advocate of good or proper isolation for both speakers and components. The Nobsounds may not be the best product in the market but they certainly have the potential of improving the sound quality of the system when appropriately installed under components. For the price there are no complaints.

Anyone who is having problem with the system sounding bright, hard or digital should give these a try before they change something else in the system to correct the issues.

Most people wind up with a lot of springs left over. They fit perfectly into a 1/4" hole. This makes it real easy to DIY extra ones. Simply drill 1/4" holes in some wood, MDF, acrylic, etc and put em together. Experiment to get the holes the right depth, maybe use some hot glue, you could do really light components with just one or two springs per pod. Another option, even easier, add weight. I have used a 5lb dive weight on my CDP for years.

All of audio is trial and error. Test and evaluate, tweak and evaluate some more. This is no different. Anyone things a system is plug and play, sorry. This one thing more than anything else will hold you back.

Corollary: learn to listen, don't waste time measuring. 

Time spent writing down kg and measuring compression is time that could have been spent listening, which is the only way you get anywhere. The sooner you figure this out the faster you go.

Most people wind up with a lot of springs left over. They fit perfectly into a 1/4" hole. This makes it real easy to DIY extra ones. Simply drill 1/4" holes in some wood, MDF, acrylic, etc and put em together.

Good suggestion. I entertained the idea of making some using the leftover springs earlier. Unfortunately I have poor DIY skills and don't have the necessary tools to do so.  Also, the different looks of the footers may affect the aesthetics if the components are on the same rack. Will see how it goes.

I agree the only way is to listen with a lot of trial and error.

Folks, an update. I’ll cut to the chase.

Please put some effort in the set up of the Nobsounds as they have proven to be effective, only when properly set up. As mentioned earlier, no shortcuts.

I can confirm that the footers have brought an impact to the system. After getting to the optimized set up of the Nobsound on the power amp, I removed them and listened again. The bass lost definition and sounded smeared. There was bass resonance. Next, percussion sounded soft, subdued and smeared, lacking energy and sparkle.

Now, the interesting part. I reinstalled the Nobsounds but failed to achieve the previous performance. Long story short. Some footers have a larger gap while some show a smaller gap. After some adjustments it’s all glory again. Lesson learned - try to get a same compression for all footers below the component.

The diagram below shows the 3 footers under the amp. As the load distribution of the amp is unequal(transformer is located on the right), all footers have different number of springs.

Notice the footer at the rear is not at the centre but moved slightly to the right. The placement of this footer was painstakingly adjusted several times to ensure an even compression for all 3 footers.

The diagram below shows the transformer on the right which contributed to the heavier weight where more springs are required to compensate.

All of audio is trial and error. Test and evaluate, tweak and evaluate some more. This is no different. Anyone things a system is plug and play, sorry. This one thing more than anything else will hold you back.

On 2nd thought, in this context I presume this trial and error only applies to the Nobsound since they can be run in many configurations, unlike isolation products from other manufacturers. With the Isoacoustics Orea, one can only switch between 3 and 4 footers under a component, that’s about it I guess. In other words, the Oreas can be considered as plonk and play. The Oreas either work or they don’t. If the Oreas don’t work, one cannot do any changes to make them work. With the Nobsounds, if they don’t work, one can change the spring configuration to make them work.

The setting up with Nobsound is also a lot more finicky since adjustments are required with unequal weight distribution of the component. If the springs of the Nobsounds are not adjusted, the component will sit lopsided. With the Oreas (or other isolators), leveling isn’t an issue as the height of each footer is fixed, unlike the Oreas where the height will vary with weight.

I presume the Townshend Seismic Pods are also rather straightforward in their set up without much effort required, perhaps with leveling adjustments they are pretty much plug and play? Assumption on my part.

UPDATE: as to be expected replacing the 2 MD HD springs with 2 Nobs (full springs) under my heavy Core Power 1800 further improved the music. I played both Blues Brothers, before and after the 2 additional springs. Next up was Billie Holiday Greatest Hits.

Blues Brothers: I could hear much deeper into the sound stage and instruments were easily heard where they were physically on the stage and Dan Aykroyd was positioned more to the right and back from Beluchi, and the sax sounded more full bodied than at any time I've listened to this disc

Billie Holiday: This disc always sounded very good, but now, I was transported to the venue, so lifelike

hth

So glad to find this thread. I like to know why things work. The formulas provided help. Although I was doing trial and error, I did get good results.

Chronology:

1. Bought 8 Audiocrast springs on Amazon after the majority here like the results of springs. I picked this brand because it had a higher weight capacity. My speakers are 120 lbs each. Results were as someone said, "right", you just know it. Pretty much same as others. Details, transients, weight, just better

2. LIked the results so much i ordered 8 more for my subs. What once sounded like a single note, had more detail, more and a cleaner bass. At the same time I could feel it. Low notes were the biggest surprise.

So I put these under the four speakers and it worked. Wow! That was simple. And Amazon would take them back if I don’t like them.

3. So what about the amp, streamer, DAC, preamp? Springs didn’t seem practical. Some components are too small and light weight. So I ordered a bunch of Herbie’s Tenderfoots. And the sound went backwards. I noticed bright treble. Bass was not as detailed and more carryover(I forget the word to describe it).

So, I am glad that fine tuning is possible. I have one spring under the speaker that is more compressed. Otherwise, not sure what to do but will fiddle around. Have all winter!

I decided to give the Nobsound springs a try with my MC275 amplifiers. They were already resting on oak plywood bases (home made). I removed the feet and placed the bases on the springs and made sure it was level. Hooked everything back up, started my system and starting streaming the song "Along in Kyoto" by the group Air. First song and I heard details that I had never heard (maybe noticed) before.

I am trying to be skeptical about this, but the next album I streamed had what I can only describe as more depth. It was as if the sound field had depth below the floor. It’s a strange description, but as I was listening it was as if the floor dropped due to the sound field. It’s a weird sensation. It is really difficult to describe.

@femoore12  You were floored.