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astrostar59

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Posts posted by astrostar59

  1. 4 hours ago, Bjorn said:

    HEY GUYS LOOK. Genius up here ^ just sent me this: 

    Skärmavbild 2016-11-28 kl. 18.38.58.png

    Not only does this fucktard have zero clue what he's talking about, he's *actually* referring to the similarly daft jokers at whathifi to make a point. Gosh, and here I was thinking a human being couldn't get any more stupid...

    EDIT: Also, mod please feel free to delete some of these comments. This fine thread deserves better. Just had to share that one. 

     

    Dude, I haven't sunken to your level of retarded language and generally neanderthal behaviour. I said I wouldn't join the bully club. I have no fucking interest in it. I saw it at school, in night clubs with piss heads, I avoid violence and walk away from moronic behaviour. You obviously can't take any examination in your direction. If you remember you slung a public post at me saying the 'fucktard uses tubes to make his 009s sound good' No reason for that attack (with no logic). 

    I PM'd you politely explaining to you that tubes in a decently designed DAC are not designed in as tone controls (as you are trying to say as a fact). Lets see, why do some top DACs use tubes? How many top pre-amplifiers also use tubes as regulated power supply and / or gain stage. I wonder why the T2 and the BHSE uses tubes in the gain stages or part of the gain stage? Are these designs garbage in your eyes?

    Clearly when I explained this to you in a shorter and more polite manner, you couldn't take it. So you blow off on one. I obviously had to respond. I sent you that review of your DAC, hoping you may see a bright sounding DAC would naturally make the 009s sound bright to you. The 007s are more forgiving IMO, better for your system I would suggest.

    You didn't like this. So here we are, you swearing in front of your mates for support. Lets kick the fuckers head in guys. Fucking wanker, fucking fascist cunt. Yeah kill him.

    This forum has some interesting things on it, but I don't join in the bully swearing club and daily character assassinations that seem to surround the positives. It seems to have got worse over the last 12 months. There are too many on here that ruin what could be a great forum of positives about this hobby. Yeah, I get the welcome intro, yes, be passionate, but cyber bullying and ridiculous language over a sound system. It isn't about religion or ISIS, it is about this amp or headphone sounds good, this amp works like that. Sharing DIY skills. Jeeze, WTF? How many times have I seen the word 'retard' on here. I may inform you I have a cousin who had brain damage in a car accident, and he got called a retard at college. I hate that, just like I hate any kind of hate. I won't hate you, I leave and pretend you don't exist, then the loop of hate ends. 

    There, I am done. I put the photo in for some humour as someone said no humour. But I am not feeling funny. To those (many) who post great information on here (you know who you are) chill, I am not talking to you. I am talking to the idiots who troll, attack, cyber bully and swear, generally exhibit irrational and aggressive behaviour and go off topic so much to swear and basically assassinate anyone they see as not in 'the club'. so act like a neanderthal. Since when is that a good behaviour in an audio forum for enthusiasts? And when was it a great thing to be 'proud" of. The opportunity to display aggression and bad language remotely is in my mind cyber bullying. It is something to remove from the modern world, not encourage. 

     

    neanderthal.jpg

    • Like 2
  2. 6 hours ago, Bjorn said:

    What's funny is that Astrofuck PM:d me recently bragging about his expensive shit and mentioned this ^ somewhere also. 

    If you recall correctly I was telling you that a Tubed DAC does not necessarily mean treble loss or a tone control fix for the 009 as you were claiming it was.

    As you may know the Meridian Director DAC is recognised as a 'bright DAC' and in combo with your 717 amp which I used to own, will give a tipped up treble balance. Possibly why you prefer the 007s?

  3. 3 hours ago, wink said:

    It is with great melancholy that I put fingers to keyboard after perusing your answer to my previous missive, as it is very evident that the vital information contained therein has either been disregarded in a most cavalier manner or disregarded due to the lack of sufficient education or desire to glean the freely provided data and so it behoves me to correct some of the most blatantly obvious mistakes and inconsistencies contained therein as well as your previous postings which are quite evident to those with even a smattering of technical and experiential knowledgeability especially when you deride a most well known designer and builder of enormous repute as well as deign to question his obvious expertise in these matters whereas you, it seems, do not even understand the rudimentary differences between an amplifier and preamplifier as well as the most desirable specificational requirements required to occasion their performance at the most elevated level in that which is known as high fidelity and can be found in this forum in copious quantites in a plethora of pertinent threads, and yet the most flagrant of disregard for truth in performance is evidenced in your complete misunderstanding as to what constitutes real hi-fi which terminology seems to be highly misunderstood by the great unwashed who sadly equate this term with "sounds good" whatever that means whereas even the least careful thinker who would care to apply the logical extension of the terminology used would realise that if the source material sounds rotten then anything that would make that sad situation more tolerable is of necessity not even close to high fidelity and, as the sad situation is propagated on this as well as other forums to misinform and demean those gullible newbies who take this situation at face value in the severely mistaken belief that their new-found knowledge which they are avidly imbibing in has not even a skerrick of fact in reality and it falls on myself to inform you that you appear to be one of these poor benighted souls who have drunk from the polluted pond of misinformation, scuttlebutt, hype and popular myth and then you severely add to the odious problem by regurgitating this technical and practical diarrhoea as if it is twenty four carat certified truth to be consumed and digested as well as regurgitated to the next generation of poor susceptible victims of all this snake oil, unicorn tears, pixie dust, hens teeth and lastly but not least of all downright dishonesty to the cause of better reproduction of the individual's selected choice in the reproduction of sound in the most felicitous manner.

    I don't join the bullshit club either. You however seem to be putting yourself up for top technical bod, the one who decides who is a looser, who knows how much about equipment, indeed who gets the personal attacks and assignations. It is termed 'cyber bullying' I believe if it is taken out of context of the subject (hifi discussions).

    As I said, I put emphasis on comparison by contrast. I use my ears. Many here know the technicalities of good design as well, that is why I like to read here. I don't say I have such knowledge, but I know what I hear, and Kevin's KGSShv and Carbon designs are superb sounding amplifiers. I have had the delight to have owned such amplifiers for 4 years, and before that 20 years of Stax amps and various headphones. So I don't see myself as a newbie as such. Rather an oldie with IMO decent ears. I haven't built an Electrostatic amp but I have built a tubed pre-amplifier, and 3 x tubed DACs. I enjoyed that experience immensely. 

  4. 3 minutes ago, wink said:

    Astro, perhaps, if you took the time to know somewhat of the topic you were posting about, and before you took it upon yourself to sarcastically call out those far more knowledgeable posters contributing in the various threads in this forum, you may not be the continual equivalent of soylent green and comic relief that seems to be your undeniable forte whilst you attempt to add to the tenor of this forum and this thread in particular, but sadly, it is my melancholy duty to inform you that your postings are comical at best, and asinine in general thus resulting in the many negatory replies to your posts, and, adding to the status quo, your total inability to, or perhaps complete disregard for the rebuttals your posts receive, you continue to chronically suffer from the proverbial foot-in-mouth disease, and contrary to popular belief, this post is not a diatribe against you but a rather belated attempt by myself to attempt, perhaps, not futilely, to educate and admonish you with the intention of rescuing you from further displays by yourself of your penchant to display your ignorance of the subject matter and it's context which is so necessary to the understanding of the postings herein contained, plus it also has the added benefit of ameliorating the comical content of the ever present contrarians who just love to point out your fallacious understandings which are so frequently proffered in your posts for their amusement and delectation but to the detraction of your personal prestige within these hallowed portals of knowledge and dissemination thereof, which has contributed massively to those here with the right attitude and resulting in their elevation of worth, knowledge and skills in DIY as well as other areas of social interaction as can be readily seen and recognized within this forum, and so I hope that this slight rebuke is taken in it's proper context as an educational expose which will no doubt be seen as negatively impacting on the fun factor by those who are awaiting every post of yours to ascertain what mileage may be derived from your ignorance which is overtly expressed in you posts and to be butt of ridicule and demeaning jesting from the more astute and enlightened denizens with a greater than modicum of humour and irony.

    Wow, a lot of time to write that. Impressed. Hmm, I post about stuff I have either owned, or heard. I don't say anything is garbage unless I hear it first. I understand there are others more knowledgable in technical matters who can do that. Respect. But I post as an audiophile who likes decent sounding gear. Simple. I don't join in the bully club. Now if you enjoy that sort of thing, maybe you need help.

  5. 2 hours ago, sorenb said:

    bFWT5uT.png

    You heard the Lampizator Golden Gate? Thought not. Come on this forum is supposed to avoid the review without hearing thing that HF gets accused of 100% of the time. I see folk over there who comment on gear they actually own, same on here. But I ignore ones that say stuff and haven't heard it.

    Ok MSB amp is a freak as the price is insane, so up for flack. 

  6. 8 hours ago, kevin gilmore said:

    so what function do tubes do in a dac?

    unless you plan on building a modern version of an eniac, the answer has to be the output buffer. Everything up to that buffer has to be solid state. So you get your choice of a tube cathode follower, or a tube driving an output transformer. The cathode follower is going to have a fairly high output impedance, something like 10k ohms so it might have trouble driving some cables, and the transformer output will have a low output impedance, and a bit more second harmonic distortion.

    your other choice is a solid state buffer of some kind.

    all 3 are going to sound different, some people are going to definitely like one over the other.

    the solid state buffer is likely to have less thd and more ability to drive long cables.

    if you have a solid state dac, and want some tube goodness add one of these

    http://schiit.com/products/saga

    Hi Kevin

    I don't know all the technicalities. But looking at a good tubed pre-amplifier design, a tube regulated power supply and tube line stage can sound very good I found. Some very nice pre-amps with this topology. I may be wrong, but I am thinking a DAC is basically a pre-amp with a digital board (hugely simplified analogy). Lampizator use tubed regulated PS and output for example. The Golden Gate sounds very good. I am not saying tubed DACs are better, only can sound great as does solid state.

  7. 8 hours ago, DJS said:

    I am a designer with MSB and I will not get into an argument with anyone about value or sound quality which are highly subjective  parameters, but I do want to clear up some technical misconceptions about this electrostat amp. Fist Kevin is correct about one spec being wrong, our website is new and there are likely some more incorrect specs as well. The frequency spec should read 5Hz-20Khz +-0.8dB driving one Stax SR-009 at 100Vrms. This is mostly due to the amps 6500 Ohm output impedance driving the low Q capacitor of the headphones. Also from a normal designers perspective the 75 Ohm input impedance seems like a bad choice, but this amp was designed to only be used with the Select DAC so this amp forms an optimized circuit with the amp. As the designer I prefer to think of it as a super high output voltage DAC that happens to be housed in two boxes. The other specs are correct but slightly conservative. The dynamic range is actually closer to 144db (20Khz bandwidth) because the amp only has a 3dB NF but any particular amp could have a slightly slightly variable PSRR or slightly less effective input transformer shielding which could lower the dynamic range a couple of db due to a slight excess of 120Hz or 180Hz noise coupling from surroundings. When noise floor reaches the nanovolt level (the input stage) even the orientation of a wire can couple excess noise into a circuit so I like to publish conservative specs that don't reguire a farady room to reach. Distortion at 20Hz 300Vrms is limited by the input transformer to 0.05% but by 100Hz that is down to 0.001%. At 1Khz 50Vrms THD+N reaches its minimum measured value of 0.0004% (probably the limit of my AP test system) then slowly increases to 0.02% at maximum output of 440Vrms (mostly 3rd harmonic). This is intentionally limited by the maximum DAC output so that the amp circuitry cannot clip. Distortion to 20Khz remains esentially unchanged from that measured at 1Khz. Most of the semiconductors are mounted under the PCB with heat pipes carrying heat to the heatsinks. Heatsinks on this product are full depth without the hand pockets of the Select DAC to facilitate the additional power dissipation.  Static power dissipation is about 60W which is close to the maximum comfortable heat dissipation for the Select chassis. To get the 120db of power supply noise rejection required there is a three stage regulator and noise filter. The numerous capacitors are elements of the three stages of regulation. The amp is a zero feedback design because even tho feedback reduced the THD at full output considerably, lowered the effective output impedance, and flattened the frequency response at 20Khz it also reduced perceived sound quality significantly so I decided to omit it. I feel the measured specs are plenty good without it and as a benefit the amp is unconditionally stable with any load.

    As a side note the more than 140db of dynamic range was a happy surprise. I was shooting for 135db or better. Also prototyping a HV amp or power supply like this is terrifying, especially with modern miniaturized components, a mistake or slip means more than an Amp at 600Vdc stopping your heart. PCB and case design is no joke either if you want a safe error tolerant design, every three dimensional leakage path from each component to nearby components has to be considered. 

    Respect for posting. It sounds plausible to me, but I don't know the technicals so over to others for that. Anyway, least MSB are supplying more details.

  8. On 25 Nov 2016 at 4:44 PM, spritzer said:

    Yeah, reminds me of the WES vs. BHSE review somebody did.  Two reviewers who didn't actually compare the amps head to head and of the two the BHSE was too warm and the WES neutral.  Anybody who has listened to these two amps knows this is utter bullshit.  This is far from an isolated incident...

    Was that Tyll? If it was I agree. Sorry, it wasn't Tyll apologies. 

  9. 1 hour ago, Sechtdamon said:

    This can be just because me knowing Birgir modded it and knowing it can form a placebo effect in my mind, I completely accept that. But I highly doubt if astro follows that principle.

    And from other topics he started, I highly believe, astro is following wrong people.

    Interesting. I heard about the KGSShv on here. I then heard it in real life then bought 2. Then I heard about the carbon version one here too. Then bought one. So I do value the knowledge from you guys. And I agree 100% any unbiased and knowledgable insight on this MSB amp design is going to come from this forum for sure. Maybe 'reviews' from others who get to hear it might be somewhere else. How useful they are is up for debate for sure.

  10. 32 minutes ago, Sechtdamon said:

    I'm talking about this. Having expensive headphones proves someone has good ear? "Seems to be knowledgeable" means having expensive gear?

    You say something in one sentence about yourself, and you say something completely opposite in other. Weird.

    Well, I wrote everything, read again if you like. and you are repeating yourself like 13th time.

    Err no, saying if the guy owns the Abyss and Utopia and just bought the 009s with his hard earned he 'may' or should be able to form an opinion he can share, that is what folk do on forums. If I owned all 3 I would do just that. Better opinion than guessing or a short demo at a show perhaps?

    However, if that is not the case then WTF is the point in any of this???????

    I am also curious how the Abyss and Utopia shape up to the 009s (different subject I realise).

  11. 1 hour ago, Dusty Chalk said:

    Are you saying there is some sort of connection between its price and its quality ?  That's a common misconception . 

    No, I am saying they are saying that (MSB) by charging so much over and above everything else sold to date both commercially and DIY. 

    36 minutes ago, Sechtdamon said:

    Well... he falls into all of my 3 diagnosis.

     

    @astrostar59, my dear sir,

    F.ck squirrel, f.ck others. The problem you have is you jump into all hypes and defend them as if you trully hear. If you cannot hear the difference between two shits with blind A/B testing, nothing matters, noone's opinion matters. As I understand from your posts, I believe you are accepting experienced(!) people's opinions without experiencing yourself. Don't fool yourself any more sir. I'm not writing this to insult you, but for your good. Seriously, change the way you think/believe.

    If you cannot hear at all, and purchase things based on other experienced(!) people's opinions, it is wasting money for nothing.

    I am saying I am interested in any review on the amp. I am hoping iSquirrel it an honest opinion. He has the Utopia and Abyss in the house, so maybe will be ok for a review? I don't trust magazines, but I do trust some posts on here and at other forums if that person seems to be knowledgable. I don't say stuff is good myself unless I get my ears around it, which in this case I won't. And most won't either. I never buy only based on reviews, I hand over cash based on my own demo's for main items in a system. 

    Kevin, I think the pic of the insides in the back left area, so maybe front right area is out of shot? Pic here of the Select chassis (same footprint).

    Select-Unibody-640x640.png

  12. Oh my. It is a controversial product for sure at this price. Kinda saying, everything before is useless, this is surpassing all previous designs with a price tag like this. MSB are a good company as regards DAC designs though, albeit a bit pricey maybe?

    Couple of annoying things to me.

    1. The amp is useless to anyone without the 80K Select DAC I believe.

    2. It is doubtful any of us will get to hear it to know if it sounds amazing or not.

    However iSquirrel is a knowledgable audiophile. He has an amazing speaker setup and posts on many forums. He admits he has little knowledge about Stats, but he has the Utopia and Abyss to compare to the MSB amp. So I am interested to read why he says. I think he is legit (not dealer / reseller). He just seems to have big budgets for his hobby, fare enough.

    On 18 Nov 2016 at 9:37 PM, Sechtdamon said:

    Good thing happened too today, as comfortation. I got this today:

    DSCN3554.JPG

     

    DSCN3555.JPG

     

    DSCN3558.JPG

    This is the egmont clone that Birgir bought from China website. I was thinking for a long time for amplifier upgrade but I did not want to take 10 steps at a time, cuz I really want to progress slowly, for it's better and joyful to do. So with Birgir helping me a lot about lots of things, I bought it for the half of the price Birgir spent on it (not a discount, you can see how much he spent on this topic).

    Amplifier is extremely good for the money I spent, I've never listened it before modified but I read how bad it was before modified by him. But hey, he has magical hands. I mean, It is better than current top tier amps of Stax, imho.

    Thanks again Birgir.

     

    ps: I sold the bubble wraps and made some profit. :)

     

    DSCN3559.JPG

    Btw, I started to work about that top closure immediately. For a long time I wanted to work on granite. I'm making a granite cover for top of it. If I can succeed, I'll let you know when I start to work on full granite enclosures.

     

    And here is my current humble system:

    DSCN3560.JPG

     

     

    Nice looking chassis. Pity they used Google Translate for the text.

  13. Incredible. Ok so put your head in the sand, slag off what you haven't heard, and stop halfway up the hill, say you know everything. What is wrong with try it and see, don't believe my word for it. Use your ears, then you can come back and slag it off, not before you know zip about the effect. And there is a LOT of very good audio folk on other forums, yes really, there is a world out there.....

    I am done.....

  14. On 7 Nov 2016 at 6:30 AM, Dusty Chalk said:

    Again, without knowing what was wrong with your previous system, just telling us it is better tells us it's better than broken, and that's not telling us much.  Most of our systems aren't broken. 

    USB is fine for transferring data -- think about a program, or an encrypted archive:  it needs to be a perfect digital replica of itself after being transferred.  If one bit is off -- one bit! -- it is considered corrupt. 

    So the only thing left is timing.  Jitter.  Jitter just isn't that audible, not as night and day as you are describing.  It's subtle, as Sechtdamon says.  Not unless something was really really wrong, and you should have been able to hear a difference just by trying a third system.

    Look, I'm happy for you that it's so much better than your old system, but most of us wouldn't have put up with that shit. 

    I am saying just try it. That is the best way to know for sure. I try to stay out of the technicalities. What set me on this path was the tech guy from CH precision saying the C1 sounded better on AOIP than USB. That the the 2 massive threads on computeraudiphile and head-fi. Pretty much 100% say it is better than USB. Quote like 'liquid' and 'super smooth, transparent'.

    I would hazard a guess in my limited technical knowledge on this, that there is noise in the USB line, and the power sent down it doesn't help even if it is not used. Also the USB bus is shared on most PCs between other ports. Then almost zero latency may help with jitter? 1000 Base T is miles faster than USB. Dante in the case of the Rednet designed the system just for high quality audio, something USB was not designed for.

    TBH my old system already sounded amazing, I thought I was done, until I found AOIP.

  15. My view on this is it is difficult to demo the top phones at the same time. Maybe some HP dealers in New York or something, but for 95% of us there is just not the availability. So we paw around in the dark, read stuff, ask advice and then, maybe, buy said model. I guess I was lucky maybe, that I heard the 007s then the 009s before I bought them, but that was in owners systems, not a dealer. The hobby at this level I guess is too niche for the mainstream shops....

  16. 1 hour ago, Sechtdamon said:

    Did you make any blind test? Or what you hear is just based on honeymoon and placebo effects?

    No it is not. If you use a transport pc just for running what you use for playback. And i use WYRD it was great.

     

    At where? On head-fi? People swim in snakeoil at there.

    Yes, but another massive thread on computer audiophile. Try it and then say is it snake oil. It is a game changer IMO, and TBH costs the same as many USB chains.

    I ran my USB chain alongside the Rednet for a week solid. I could tell very quickly, but after a week I wasn't going back to USB no chance. The difference is not subtle. The removal of treble glaze and harsh leading edges, that impression of digital noise in the music. I think HP users are sensitive to this more than speaker guys IMO. 

    On the Carbon and 009s plus my horn speakers it was real obvious. I would hazard a guess a lot of the 'brightness' issues in the 009 is from the failures upstream of USB audio. The detail and transparency is the same, but it is dead smooth, liquid I would call it, less 'hifi' and digital. For example I always suspected some female vocals had a on/ off type sound to it, like it was dropping out at an incredibly fast rate, like a chain saw type of sound to it. Anyway, that aspect is now GONE, it is as I say, fluid and super smooth.

    I have no fixed opinion as to why 1000BaseT Ethernet is better for audio. I guess obvious reasons maybe latency and speed, accuracy of delivery. Possibly less noise in the data connection, possibly the way Dante sends that data. As I understand it USB was never designed for high end audio streaming. Anyway, give it a try, it would be good to get others on here who have tried it.

  17. I was thinking. We discussed hard spikes as a support. My take on those is they would raise the resonance (frequency in hz) rather than lower it as a solid support. They may suit on a carpet to wooden floor situation? On a concrete floor (totally solid mass, no under floor or void) a spike may work well. But on most floors or in my case my marble plinths, there will be some resonance as various frequencies.

     

    screen-shot-2014-11-18-at-9-04-25-am.png

    So, going soft rubber may reduce those resonances to lower than say 10hz which is good. But what about total levitation. The MagLev train in Japan uses it to great effect.

    I found some of these feet at hifi collective. They are not crazy money and look well made. My only worry may be stray magnetic fields as the structure looks open.

    spike-sound-will-chrome-350_1.jpg

     

    Others are available but more money, more than I would pay. Has anyone tried a Mag Lev support for their gear?

     

    s-l500.jpg

    These on Ebay are cheap. I would need 5 per speaker.

    caMagixSingle_S.jpg

    Clear Audio feet, but only take 4K per feet. Not enough for speakers.

    • Like 1
  18. 10 hours ago, purk said:

    His is the KGSS reviewer edition I believe.  I am with John here that you really need the KGSSHV at a minimum to show case what the SR007 can really do.  My KGSSHV Carbon recently came back from the GRLV upgrade and both the SR009 & SR007 were so great out of it.   The SR007 almost has too much bass out of the the Carbon..still a sublime listening experience.

    Interesting Purk. My KGSShv Sanyo had more bass than the Carbon, maybe not quite as deep but more quantity. On the 007 MK3s it was a bit too much on some dance material. The Carbon has a bit less quantity but is faster and has more control. `The sundstage is also wider and the amp is generally more 'alive'. I can see it might be an issue on some DACs but it is a better amp for sure. The bias is higher on the Carbon (20mA as opposed to 10mA) not sure if that is part of the reason? Also the PS is better in the latest Kevin incarnations. 

    So I think you like the addition of the LV boards? I think they also have a positive. I am quite obsessed with PS and clean mains supply, it seems to be a big factor in the sound you end up with and how good it is.

  19. 1 hour ago, Bjorn said:

    I don't doubt. That's why I'm not going to start an O2 vs Utopia debate. Someone with a KGSSHV (or even better) rig will have to do that. It would sure be nice to hear comparisons from someone who does, because I'm a little on the fence about whether to invest more in the O2 or go back to dynamic (i:e Utopia). Both ways would cost me about the same considering I'd need a new, balanced source for the KGSSHV:s and a swell Utopia amplifier will be much easier on the wallet. 

    Tyll (who DOES have a KGSSHV on hand) did say he preferred the Utopia and I agree on his opinion that the e-stats sound a little hazy up top when compared to it. That is actually exactly what I found as well, and what struck me first about the Utopia. Which is funny, as I've never thought that way of the O2 before. 

    Gah... decisions :D

    IMO the 007s have always been a bit dark / treble recessed. There latest 007A is much better than the older MK2/3s IMO. The 009 is another league (out of the Carbon).

  20. They don't move at all in any direction even played very loud. After having ran with the cheap rubber door mat supports, I am convinced the 'float' method is best for a hard floor. If a wooden floor then a different approach would be require IMO, to further isolate the 'live' floor from the energy of both the cabinets and the sound waves itself, so a difficult task in my view.

    Which makes me come full circle and the crazy array of high priced spikes, metal cones and cups, ball bearings, I am glad I seem to have not got sucked into that sector of the hobby TBH. 

  21. Ok, I had some rubber honey comb door mat in the house, so I cut a 4 hole section (about 6cm square) piece. It is around 3 cm thick with small nodule underneath, then a central hole and 4 columns of rubber at each corner. I placed 4 under the speaker base, one each corner.

    I ran my 200hz to 10hz sine wave text and it transmits NO energy at all to the top panel of my marble stands, zero. At any frequency. So it is physically dead as regards vibrations.

    Next a played a batch of well known dance tracks and reggae with tuneful bass line. The bass is very slightly lower in level than before, BUT is totally linear, i.e. goes much deeper and is more tuneful. There was a slight bass hump at maybe 100hz before possibly the loudspeaker case sending energy down into the plinth below. The other odd thing is the midrange has tightened up and the soundstage is more stable and 3D. I understand this as the speaker cabinet in now 'free' or 'floating' in space sonically.

    If I touch the top of the speakers they wobble slightly then settle. They are I guess as floating as I can make them without using the bike inner tube technique?

    I can't press down on the speakers and make then defend at all, so downward movement is not exaggerated.

    This decoupling mount cost me zero dollars, and seems to do the trick. My speaker dealer recommended some isolation devices ranging from 800 - 3K USD. Ha Ha, no way.

    rubber-mat-hollow-mat.jpg

    4-250x250.jpg

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