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I should add that earlier this week I removed the velcro pads from my baffles and the baffle covers and replaced them with ultra thin double sided adhesive pads across the entire area. They now fit really cleanly to the baffles and look a lot smarter and squarer.
I decided that they are a permanent fixture on my speakers and I wanted them to look more a part of the speakers themselves.
:)
A polite bump if you will indulge one. How's it hangin, fellas?
Got this from a Brit living in Texas recently:
"Hi Jim,
Those little babies work well! In fact, I'm surprised at the magnitude of the improvement. They seem to eliminate a lot of 'hash' at the top end which allows more detail to be heard, and this has a positive effect on what can be discerned at mid and lower frequencies too. As far as I can tell, there are no negatives in the pitch, rhythm, and timing areas (PRaT) and the stage is wider, deeper, with more solid imagery without getting that horrible 'floating head' effect with vocalists.
I'll be posting a report on the Naim forum in the next few days and I'll e-mail you a copy. Thank you for a well thought out, inexpensive, and effective product.
Best Regards, MD"
Made mention elsewhere that Naim didn't take too kindly to my replying to the lad. Banned me for no other reason than telling subscribers that it was me what made them and that I would happily answer questions. Really, that's all there was to it. Hacked up the fellows post, too. Pompous and shameful, IMO.
Believe I will skip over to the music side and start a thread about JAZZ if there isn't one already. I'm knowledgable about the subject if anyone is interested. Thanks. Be seein ya.
As the frequency goes down, waveforms become physically longer. They wrap around our enclosures and are reflected later in time by room surfaces and boundaries. The frequencies most responsible for the rendering of instruments and space are propagated by our tweeters. These waveforms are very short and carry the first arrival of midrange info along with all things high frequency. Critical waveforms they are and it's these that are being diffracted by our baffles and cabinet edges. They would be arriving out of time and phase with what your tweeters just sent to you. They muck up your presentation spatially and dimensionally. Using my pads will allow you to see/hear between and around instruments more clearly and deeper into your stage. Your soundscape and the instruments that occupy it are rendered more palpable and recognizably real.Quote:
Originally Posted by jandl100
Here is an animated illustration of what diffraction looks like in action (this was not made by me):
http://www.silcom.com/~aludwig/images/diffdem.gif
In addition to preserving correct time and phase- purity to waveforms- the removal of diffraction flattens out a deviation or loss of linearity in the frequency domain that is germaine to it at and beyond the crossover. In this regard, a few speaker designers put in a -1db or so dip in their output in this area so this is made less audible. Good for them as that is proactive but most don't do this and you don't see it in published frequency response studies (any) but you ARE hearing it. Those studies are made in controlled settings and at a standard distance from the microphone that has little in common with real world listening environments. Customers tell me that more mid range info emerges using my pads and it makes sense . . for every peak there is a shadow in listening terms. Proper tonality is preserved.
The mechanics of music reproduction should be inaudible and speakers as sources invisable. That's what using my small thing does.
I offer with a 30 day buy back guarantee so you can audition for yourself and I custom fit to a particular speaker. Better listening thru simple science. Your system is better than you think!
Oh, and I can dye them black for a nominal fee (the price of quality dye and the gas to go get it). Cheers
test
Snapper . . don't see your post only that you made one. Perhaps you can re-post. Something must be amiss. I believe there are others missing, as well. Thanks. Oh, nevermind. I see what you did.
Jim,when I accessed this thread,it showed 7 pages but I couldn't get passed page 6,hence the 'test'.
Seems to be working fine now.
Could have something to do with what happened a few weeks ago.
:confused:
It's the AOS ghostie... :eyebrows:
Marco.
Its an unfortunate truth that many commercial speakers, even expensive ones, have quite serious design floors. This can be due to simply errors being overlooked and also being purposely ignored in order to have a product thats visually appealing.
While I have never used these diffraction baffles I can say that I had a lot of success with using felt to sorround the drivers of my DIY speakers. I'm positive that it played a hugh part in the pinpoint imaging that they had.
I lov this kind of stuff as its a lot cheaper than things like Mains leads and fancy isolation feet but has a far more noticable improvement. Quite frankly I think that anyone is nuts if they spend a fortune on other ancillaries before using things like this as their effect is far greater.
Of course I have to put in the get out clause of this is all IMO but if you're going to spend a few hundered quid on an interconnet or something try spending a fraction of that on things like this as you can obviously afford it!!
Paul, thanks for commenting. I hope it helps others to appreciate your experience and understanding and what there is to be gained.
Yesterday, I visited a customer of mine with Eggleston Andra II speakers with Dynaudio Esotar tweeters in a nicely tricked out room. Wow. Very wow. I asked him what he thought his surrounds were contributing and he said they give his system the kiss of live music, that he would recommend them to anybody. And as of today, it pleases me to be able to say that the only continent where I don't have customers in Antarctica. Thank you all and happy listening.