- Aug 19, 2016
I understand how it works. If it could be replicated more cost-effectively I believe it would have and that information would be at least semi-widely available.
For me, given the fact that I have multiple systems that I have decent money into it was worth it.
Check out the Audiogon forums. It is a pretty highly regarded product there used by posters that are well respected, some of whom have well into six figures invested in their systems. That meant more to me than the commercial reviews, which while very good, well you never know how honest the reviewers are about their findings in general.
It's like Head-Fi and headphones. If enough posters I respect give a positive review of a product it's probably pretty good. When enough complain about one (the flimsy construction of the original HE-1000 comes to mind) there's probably something to legitimately complain about.
Finally, if it didn't work for me I could sell it at a loss of of a couple of hundred dollars. Unfortunately, I have made far costly asset purchase decisions than that in my life.
From the audiodharma website:
"[COLOR=4C4C4C]The output signal includes a swept square wave calibrated from 0 DC to over 40KHz (plus harmonics)."[/COLOR]
So, yeah....you can buy good, modern signal generators for $75 or less on Amazon that do this.
You don't even need a signal generator to do it. You can write out a wav file in matlab or free equivalent no problem. Just generate an appropriately sampled LFM with the desired chirp rate. Spending even a penny on this type of nonsense is a waste and just reinforces to sleazeball manufacturers that they can keep getting away with this crap.