Miller, Stop trying to teach me physics. You can do whatever you like for whatever reason makes sense to you. I will persist in believing that putting speakers on springs or sorbothane pucks is NOT a good idea. "Vibrations" and their control is a subject for cabinet designers and the like. If you put the best cabinet in the world on springs, you will still magnify problems that are specifically due to the fact that for every action there is an equal and opposite reaction, in Newtonian mechanics. Moreso manifest in the bass region than in the treble, as Mijo says.
Springs under turntable
I picked up a set of springs for $35 on Amazon. I intended to use them under a preamp but one thing led to another and I tried them under the turntable. Now, this is no mean feat. It’s a Garrard 401 in a 60pound 50mm slate plinth. The spring device is interesting. It’s sold under the Nobsound brand and is made up of two 45mm wide solid billets of aluminum endcaps with recesses to fit up to seven small springs. It’s very well made. You can add or remove springs depending on the weight distribution. I had to do this with a level and it only took a few minutes. They look good. I did not fit them for floor isolation as I have concrete. I played a few tracks before fitting, and played the same tracks after fitting. Improvement in bass definition, speed, air, inner detail, more space around instruments, nicer timbre and color. Pleasant surprise for little money.
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How do you explain my results with springs under speakers? with more clear bass and a better mid range and extension in the higher frequencies... My system is already electrically and acoustically controlled and sensible... It is not first a physics question, it is a simple experiment to do.... For the physics wait for a physicist who knows speakers design.... :) Repeating a Newton equation like a mantra is not an experiment that take few minutes to do.... My ears tell me more about speakers on springs now, than any equation.... :) Instead of arguing it seems more wise to try it.....Especially if more than one has vouched for it..... But if you want to know if some physicist think that springs under speakers are a good idea, there is some equations here for you, i presume this physicist already know Newton equation.... :) Vibration Isolation System For Near Field Speakers In Sound Recording Studio http://www.sea-acustica.es/fileadmin/INTERNOISE_2019/Fchrs/Proceedings/2155.pdf |
@mahgister Many others have also reported sonic improvements when decoupling speakers and the Townshend folks believe springs and air bladders are two of the better decoupling methods, although there are other methods such as using Herbie's products, roller bearings for decoupling in the horizontal plane, etc. I believe the physics are likely complicated based on the many variables involved with specific applications but regardless, quite a few who have tried decoupling believe they hear improvements including folks like Jim Smith, author of Get Better Sound https://www.amazon.com/Get-Better-Sound-Jim-Smith/dp/0982080700/ref=sr_1_1?dchild=1&keywords=get+better+sound%2C+jim+smith&qid=1599172058&s=books&sr=1-1 |
I'm guessing you're hearing more air around the instruments? Those likely are resonances we seek to eliminate.First thing I thought of. I know where you are coming from. But the sound quality is improved at low volume too. My rig is pretty solid and heavy in the right parts. Environment is concrete. Instruments are precisely focused and tiny details are more apparent without glare or blur. I think your guess may be incorrect. Thanks. |
mitch2 Thanks for the book recommendation.... My best... The physics is complex yes... But in a word springs isolate the box from the external vibrations, then there is no more resonance between the 2 speakers in the same room...In my case on the same desk.... Internal resonance are probably less enhanced and decreased without any external influence to amplify them... This is not the explanation for sure just my 2 cents.... I am not a physicist.... No doubt in my mind that with the right compression applied(i tried 3 rate) it is simple for the ears to discern the best compression , too damping weight on the springs and the sound is warmish or muddy, not enough damping weight and the sound is too bright or too harsh... Right amount and all is improved on all frequencies... This is audibly evident.... My ears rarely doubt...Perhaps they are easily deluded but they never doubt... :) |
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