gma952b
Responses from gma952b
| Time coherence - how important and what speakers? Thanks for the feedback.I don't feel bad about answering- I just don't want to dominate this thread. And it would be more fun to ask the questions. But you're right, this is my profession. Much of what I learned came through sharing, so I'm glad y... | |
| Time coherence - how important and what speakers? I should have included Linkwitz-Riley circuits in my post previous to yours. They operate in the same ways as described, but change phase approaching the crossover point in a different manner, still totalling 360 degrees difference at the crossove... | |
| Time coherence - how important and what speakers? Cdc, it is time to dispel the myth hidden inside their statement, as many other firms say exactly the same thing.You say Revel states, "The crossover networks . . . maintain a 24db per octave, 4th order acoustic response..."FYI: Acoustic response-... | |
| High efficiency speakers vs Low, pros and cons Except that goes against the very many audiophiles who report that each amplifier is different in their retrieval of low-level detail, which definitely lies below one watt even on 90dB speakers. And was it Audio Note who came up with the phrase "t... | |
| Time coherence - how important and what speakers? Cdc/Unsound you are too smart for your own good...Cdc asks:- Is time / phase coherence maintained through the whole recording / playback process so the speaker is the only thing messing up phase and time coherence?The answer is no, but... ALL gear... | |
| High efficiency speakers vs Low, pros and cons Richard, everyone above makes good points.There seem to be three advantages to seeking high sensitivity during the design of any speaker system:--to use lower-powered amplifiers (= a simpler amp, which is often more linear/more transparent)--to re... | |
| Time coherence - how important and what speakers? Good question! Active x-overs/built-in amps are great!Of course, the cost of those parts and the extra labor multiply into a higher retail. Existing powered-speaker companies offset some of that by using far less than the best woofer, tweeter, cab... | |
| Time coherence - how important and what speakers? No. Yes. No. They could be with appropriate digital time delays (delays that are different for each frequency) built in. Those are available as studio-oriented x-overs with built-in adc/dac's.Roy | |
| Time coherence - how important and what speakers? If you mean digital "tricks", I think the best answer is that the value and limitations of any digital manipulations could be more easily ascertained if they were not trying to correct for things they should not be- like cone breakup, cabinet refl... | |
| Time coherence - how important and what speakers? Thanks!Regardless of one's opinion about motional or positional feedback applied to a sub, both suffer from the limitations of the accelerometer used, the second voice coil being 'read'. Both are transducers, thus with their own dynamic range limi... | |
| Time coherence - how important and what speakers? Phase shift in the bass is a given.When you suspend a mass, so it can move, but with proper damping (so it does not vibrate on forever), you've created a "damped harmonic oscillator"- the term in a physics or engineering book.When one tries to dri... | |
| Time coherence - how important and what speakers? This might help: a link to my postings on "The Vinyl Engine".http://www.nakedresource.com//yabb/cgi-bin/yabb/YaBB.pl?board=general;action=display;num=1038342561Best,Roy | |
| Time coherence - how important and what speakers? Greenmountainaudio.com is almost done.We leave to display our speakers at the T.H.E. Show in a couple of days. Don't know if we'll get the site up before I leave, or while I'm gone, but soon...Best,Roy | |
| Time coherence - how important and what speakers? von Schweikert designs are not time coherent.Yet, Albert makes very nice sound because:1) He knows how to get the most out of the 4th-order approach (the only one that makes sense if you have to/choose to give up time coherency).2) He makes a good... | |
| Time coherence - how important and what speakers? No dealers very near to you right now, although a lot of owners. Dealers down in Orange County and Central Coast area.Call me if ?? 719 636-2500Thanks,Roy |