Just the answer I was looking for--thanks Norman!
Yes, I want my desktop speakers to only sound great when I'm sitting down. Always wondered what you were up to but from what I gather (or attempt to understand) Using two of them in vertical fashion will narrow the sound field so off axis is limited?
Still trying to wrap the cranium around that--that would be a GOOD thing, right? At least for a desktop/computer use it should limit reflections?
Yes, I want my desktop speakers to only sound great when I'm sitting down. Always wondered what you were up to but from what I gather (or attempt to understand) Using two of them in vertical fashion will narrow the sound field so off axis is limited?
Still trying to wrap the cranium around that--that would be a GOOD thing, right? At least for a desktop/computer use it should limit reflections?
Generally directivity is rarely a good thing, esp. when it only applies to a rather limited part of the spectrum. It can be tolerable with FR drivers if it's not to much and because they more than make up for it in other ways.
Two or three ways speakers are also directional in parts of the spectrum, and that can be even more objectionable/unnatural sounding out of the sweetspot. IE. a valley in the upper midrange will sound weird compared to a gentle roll-off of the top range, that we are already familiar with from natural circumstances.
But generally the FR guys saying the beaming is "good" because of less reflections are just sour grapes and probably defending their preference for penis substitute large drivers that beam like crazy and but can play louder.
Two or three ways speakers are also directional in parts of the spectrum, and that can be even more objectionable/unnatural sounding out of the sweetspot. IE. a valley in the upper midrange will sound weird compared to a gentle roll-off of the top range, that we are already familiar with from natural circumstances.
But generally the FR guys saying the beaming is "good" because of less reflections are just sour grapes and probably defending their preference for penis substitute large drivers that beam like crazy and but can play louder.
If you wire 2 drivers in series, you use a shunt cap on one driver to cut its HF. One requires a current amp to get the power increase needed to get typical baffle step compensation. (ie with a (true) voltage amp you only achieve double the cone area at low frequencies, no gain in sensitivity)
dave
dave
Looks like Bose just got a patent on using helmholz resonators to kill the 1st unwanted harmonics in a TL. The Germans have been publishing articles on those for 10 years.
dave
Dave what do you think of running a series XO on it but instead of a cap using a resistor? Would that cut down the high end too much you think? I think it would be great for a basshead that only has small drivers.
Like this:
Diaural
More tech dragged from history and patented.
dave
Dave, Maybe we cd start a thread just for this stuff, in this case Tymphany - Variable Amplifier Impedance
scroll to the bottom
scroll to the bottom
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Yes Dave something like that but because there are two FR's, you remove the cap and have just the coil and resistor. I am wondering though, to keep it high enough impedance, you would have to make the resistor fairly large and end up losing too much on the unfiltered driver thereby making it rather low sensitivity.
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