erik_squires

Responses from erik_squires

Bending wave, low order crossovers and tradeoffs
Here is the old thread we had on bending wave transducers:https://forum.audiogon.com/discussions/gobel-and-the-bending-wave?highlight=bending%2Bwave 
Bending wave, low order crossovers and tradeoffs
Hey @twoleftears - Where were you when we were talking bending waves a few months ago?? :)  
Bending wave, low order crossovers and tradeoffs
So if the comb filtering is solely the result of the mid-tweeter driver, that implies at least 2 discrete surfaces with a significant distance between them, no? How very peculiar.  
Bending wave, low order crossovers and tradeoffs
Kenjit:I am not sure who you are talking about:1 - Not sour grapes. As I said before, the value and sound quality of the speaker cannot be determined by specs or measurements. 2 - You’ve accused me of using 1st order crossovers before, and I’ve co... 
Bending wave, low order crossovers and tradeoffs
It is also showing no output greater than -40 db above about 3.5khz. How could it be running full range if this is the case? There would almost certainly be a lot of output above that with an unfiltered 8 inch driver. Depends on the woofer, really... 
Bending wave, low order crossovers and tradeoffs
PS - If you like the idea of a minimal crossover, may I suggest building the classic Seas A26 kit?https://www.madisoundspeakerstore.com/2-way-speaker-kits/seas-a26-10-2-way-kit-pair-based-on-the-cla...It has 1 capacitor and 1 resistor, and you can... 
What does an impedance-matching issue "sound" like?
Interesting diagram, and that means I'm out of my experience level. I've never seen an amp "bridgeable" like this before, but the high output impedance of the transformer probably makes it less frightening than a SS amp with feedback coupled outpu... 
What does an impedance-matching issue "sound" like?
Sorry, if you are using different output amps, your set up would look more like this:Amp 1 - L  ( + ) ------> L Speaker HF (+)Amp 1 - L (-) .------->  L Speaker HF (-) Amp 1 - R ( + ) ------>  R Speaker HF (+)Amp 1 - R (-) .------->  R... 
What does an impedance-matching issue "sound" like?
If you are attempting passive bi-amping:Amp L ( + ) ------ Speaker HF (+)Amp L (-) .-------> Speaker HF (-) Amp R ( + ) ------ Speaker Low F (+)Amp R (-) .-------> Speaker Low F (-) In neither case should the (+) amp terminals touch each oth... 
What does an impedance-matching issue "sound" like?
Wait, when you bridge an amp you run:Amp L  (+)  ---> Speaker (+)Amp R (+) ---> Speaker (-)That doesn't sound like what you are describing.  
Everything a crossover has to do ...
Amateur application of bi-amping with DSP for example misses several critical functions that a good passive crossover performs. The bad pattern of DSP crossovers usually goes like this: 1 - Set arbitrary crossover points, with extremely high slope... 
Amps that can withstand my inwall speaker system
Nope. Totally different design.  With the Parasound you have separate amps driving each pair. Best,E 
Everything a crossover has to do ...
I don't know if anyone noticed but I did not ascribe any sort of desirability to my list. That is, I point out types of things crossovers may be designed for. And so the trolls go hungry.  
Everything a crossover has to do ...
Hi @timlub!Thanks for the kind words. Those discussions are happening on Audiogon from time to time. When I wrote my post I wanted to stick to those things which are not arguable. I am confident that D'Apppolito and Toole would agree with everythi... 
Amps that can withstand my inwall speaker system
Your problem is you need a distribution amp. That is, many small amps, not one big one. You want something like this, which is designed exactly for this situation:http://www.parasound.com/1250.php