31 replies to this topic

[Marc ♫]

http://www.marigoaudio.com/vtstuningdots.htm

Just stumbled accross this? Are they common knowledge or is this a new thing? Anyone used or witnessed the result of them.

I'm a sceptic, but then again once upon a time I thought Sound Deadening was just a marketing excercise. These have me curious?

Do they serve a purpose in Automotive environment?

[ultim8DTM5]

IMO, its crap. And stop reading my threads on other boards

[tuneman]

i think i came across something similar in a old home audio mag! ages ago but it seen that there one of those obscure things that nobody worries about

there designed to get rid of surface resonances on speakers, there was a company that specilazed in working out how the sound/vibrations traveled through diferent materials and through cones! using some pretty high tech machinery' they had pics of a speaker in a kind of infared color with visible patterns over the surface of the speaker which were the sound waves! kind of like special imaging machine that could see the sound waves.

you could see spots that were different to the rest like where there was still spots(like a flowing river) and very peaky rough spots and such they designed special stick on pads of deadner which were put on the visible resonant peaks and was suposed to inprove the sound?

i dont know though never tried them

[Marc ♫]

ultim8DTM5 said:

IMO, its crap. And stop reading my threads on other boards

ha ?

[Cyberpunky]

They sound like green felt pens to improve CDs but so did deflex panels. I was lucky enough to find someone else who had no option but to pay and try them as we had no other alternative and was amazed when they actually worked. I am now a huge fan of that oproduct and use em myself.

AS for the dots I know some high end speakers add stuff like that to cones of their spkrs so maybe there is something in it but Im not paying to find out lol
grab a set and let me know how u get on with em as am curious,,,just dont expect me to pay to suss em out thou
peace
Cyberpunky

[ix]

lets say you stick them on to try them out, and they sound no different or worse, can you remove them safely?

Thats my worry anyway

[dasherhalo]

Cyberpunky said:

As for the dots I know some high end speakers add stuff like that to cones of their spkrs so maybe there is something in it but Im not paying to find out lol
Cyberpunky

VAF speakers use something similar on some of their speakers. Haven't heard, so can't comment, but at $30-40, i'd be tempted. But $159 for "window dots" and $159 for "cabinet dots"........... all I can see is a $300 better amp or set of speakers........

Quote

•  All windows within the listening environment must be treated for proper performance.

•  Windows in open adjacent rooms can also be treated for maximum performance.

Starting to sound like "all care, no responsibility". WTF does the window in the spare bedroom have to do with the sound in your loungeroom?

[Winno]

Anyone remember Peter Belt and his ideas in the '90's?

I'd have to wonder though if the money couldn't be spent better elsewhere.
What's the stuff made of?
Couldn't you fashion your own?

[tuneman]

im sure its just a deadner of sorts but its quite light! wouldn't want to be to heavy or it will kill efficency and alter resonance to much.

something like a stick on dot of felt may work it only has to add a very small amout of weight to alter the sound flowing through the cone.

personally i think there are far to many other factors that need adressing in a car sound system before anything like this would be considered, if needed at all!, you have to realize its 'in a car!!' possibly the worst enviroment for decient sound things like this work and make audible differences in perfect listing rooms' in a car theres to many reflections,pannel resonaces and phazing issues plus whatever else to make there difference heard really.
thats my opinion anyway

[Blackrazor]

If these little dots do anything except change cone mass and therefore resonant frequency, i'm Mr_Bobs uncle...

Seriously... "get rid of surface resonances on speakers"?!? I'm not dissing you tuneman, you're all good, but IF, even IF, this was possible, which its not (if it was, why didnt the high-end speaker manufacturer do it in the first place?:wink: ), how on earth would the average Joe know how to correctly place them? Just whip down to the shed and haul out his MkII Cone Analysis Spectral Analyser for a quick examination?

Then again, after you've 'upgraded' your 100w amp to a 2w tube amp, splashed out on $6000 worth of cables, bought $3000 power leads, power conditioners, placed a iron-ore heavy rock on your cd player and upgraded your volume knob to a $1000 vibration resistant model, i'm sure your music will be wonderfully enhanced by adding these speaker dots...

The chicanery of these charlitans is unbeleivable... i cannot understand how people are gullible enough to pay 10x as much for the placebo's of the music world as they do for the actual medicine :roll:

[tuneman]

hey im in total agreement we all know there a waste of money but the people with to much money don't think so! its scary

vibration resistant knob :hehe: thats got to get an award or something!

yeh my cone analizer is getting a bit redundant sitting in the gararge, have to pull it out for a wirl

[fuddbutter]

blackrazor said:

upgraded your volume knob to a $1000 vibration resistant model,

i think the knob here is the person that would be gullible enough to buy it!

[LongGone]

Go to CES in Las Vegas and visit Alexis Park where all the brown cardigan wearing high-end hi-fi dudes display their bits and bobs. You will come away either shaking your head in disbelief that anyone could be that stupid, or a convert to high-end and speakers that look like inverted canoes with roundy bits on the side.

[Bassaholic]

The cone shape/size and rigidity is a problem that practically all midrange car audio speakers face. These spots ain't going to fix it though. The solution is to choose speakers that are well designed - that have a smooth upper midrange frequency response. Dyns etc are good examples.

[sil21jun]

Blackrazor said:

upgraded your volume knob to a $1000 vibration resistant model

:shock: :shock: This should fit in my mum's kitchen cabinet...