If you gentlemen did not hesitate to read what people wrote before attacking them your attacks would not sound so silly.
It's hard for me to keep a handle on it all. For example,
Now "audiophile sound" I would say is just, uh, superior satisfaction of playback to an experienced listener. The subjective. The level of coincidence with "high fidelity" is arbitrary.
umm, yes, that is the aim of "high fidelity". The definition even. Reproduction that is faithful to the original. The objective, if you'll pardon the terminology. "Canned recordings" is redundant. To be reproduced, it must be recorded.
Now "audiophile sound" I would say is just, uh, superior satisfaction of playback to an experienced listener. The subjective. The level of coincidence with "high fidelity" is arbitrary.
AVE...
I apologize for this offtopic, but there is one thing I must say to Wavebourn, and it's not audio-related...
<offtopic>
Wavebourn, I visited your web page and I was blinded. Sorry, but using red backgrounds here is destructive for sight. Please, do something with that...
</offtopic>
@TheShaman...
You are not alone - I'm a heretic myself. Why? Because I value the truth.
I apologize for this offtopic, but there is one thing I must say to Wavebourn, and it's not audio-related...
<offtopic>
Wavebourn, I visited your web page and I was blinded. Sorry, but using red backgrounds here is destructive for sight. Please, do something with that...
</offtopic>
@TheShaman...
You are not alone - I'm a heretic myself. Why? Because I value the truth.
I came here seeking knowledge and wisdom, and found crazy people with crazy claims about crazy contraptions. I discovered whole new world of charlatans, this time in the field of audio devices...
<Zen master> Then you did find knowledge. Gaining wisdom, Grasshoppa, is your task. </Zen master>
I know. Also, I have different legs: one is left, another is right... It can't be good for proper sound reproduction. 😀
OK, got any more comments?
In the section you were referring to, I did not refer to THD at all. What's your comment about???
I too am among those who do not subscribe to the idea that THD is the dominant form of distortion when it comes to perceived fidelity. Even so, I still think it makes sense to make it small if we can, but not at the expense of other factors that may be more important.
BTW, there are two misspelled words in your kindly worded missive: it is spelled PERCEIVED, not "percieved"...and the other is not "unequivocably", it is UNEQUIVOCALLY (from unequivocal).
Have you seen any other glaring mistakes in my web-site?
Thanks.
OK, it's true, I went back and checked and indeed Geddes has coined the term Higher Order Modes, not Modulation as I had incorrectly written. I went in and fixed that.
In the section you were referring to, I did not refer to THD at all. What's your comment about???
I too am among those who do not subscribe to the idea that THD is the dominant form of distortion when it comes to perceived fidelity. Even so, I still think it makes sense to make it small if we can, but not at the expense of other factors that may be more important.
BTW, there are two misspelled words in your kindly worded missive: it is spelled PERCEIVED, not "percieved"...and the other is not "unequivocably", it is UNEQUIVOCALLY (from unequivocal).
Have you seen any other glaring mistakes in my web-site?
Thanks.
Yes, I have some comments.
Hi Jack;
are your speakers for listening pleasure, or for satisfaction of instinctive survival mechanisms?
Like red color on my tricolor page, your stress on negative effects you eliminate may blind people who come there.
Hi Jack;
are your speakers for listening pleasure, or for satisfaction of instinctive survival mechanisms?
Like red color on my tricolor page, your stress on negative effects you eliminate may blind people who come there.
AVE...
Also:
Is this a some kind of joke? If yes, then where is the funny part?
Also:
Quoted from HTML Hell Page...
???
Over about a 30 year period the Neuro-science dept at the Maharishi University in Fairfield has developed a LOT of research and testing protocols that DO measure and observe brain-wave coherence and the effects of different stimuli, and very precisely. I spent a lot of time researching their in-house publications in their library, and there is some brilliant information there.
These guys are luminaries in the field of Neuro-Science. I designed my GSR experiments with suggestions from one of their staff members, using similar protocols and similar equipment.
Says who?
Over about a 30 year period the Neuro-science dept at the Maharishi University in Fairfield has developed a LOT of research and testing protocols that DO measure and observe brain-wave coherence and the effects of different stimuli, and very precisely. I spent a lot of time researching their in-house publications in their library, and there is some brilliant information there.
These guys are luminaries in the field of Neuro-Science. I designed my GSR experiments with suggestions from one of their staff members, using similar protocols and similar equipment.
The funny part is, what you wrote in all your messages in this thread was off-topic.
Great question!
To borrow a phrase from a fellow member of this site, I would "unequivocally" state that:
Listening pleasure, especially of the long-term variety, is definitely affected by the satisfaction of the survival mechanisms. If these survival mechanisms get disturbed, the long-term pleasure to be derived from listening to music will usually be diminished.
However, in the realm of subjective testing, once we got our H3 system tweaked out and dialed in, (about 3 months after the 2010 RMAF show where we introduced it) we have had nothing but positive responses to the system. So I would say it's ultimately for listening pleasure. (I know I sure enjoy listening to it! I'm finally done tweaking! Hooray!)
As for my web-site, I'm not exactly a marketing whiz... pretty obvious, eh? How do you think I could present this material in a better way? PM if you have some ideas!
Thanks!
The short answer: Yes, to both criteria.
To borrow a phrase from a fellow member of this site, I would "unequivocally" state that:
Listening pleasure, especially of the long-term variety, is definitely affected by the satisfaction of the survival mechanisms. If these survival mechanisms get disturbed, the long-term pleasure to be derived from listening to music will usually be diminished.
However, in the realm of subjective testing, once we got our H3 system tweaked out and dialed in, (about 3 months after the 2010 RMAF show where we introduced it) we have had nothing but positive responses to the system. So I would say it's ultimately for listening pleasure. (I know I sure enjoy listening to it! I'm finally done tweaking! Hooray!)
As for my web-site, I'm not exactly a marketing whiz... pretty obvious, eh? How do you think I could present this material in a better way? PM if you have some ideas!
Thanks!
Let's help each other. 😀
The main idea, to use our knowledge about how our subconscious mind processes the information. If you write about a pleasure, in order to understand what you write the reader has to feel pleasure. If you write about stress and survival, the reader in order to understand what you write about will feel what you write about. Like, in order to understand the classical phrase "Don't think about yellow monkey!" you have to imagine it.
OK, Back on topic!
Uhh, I kind of do realize this is supposed to be about Class-D and it's viability. I'd like to mention that I do most of my listening using Virtue Sensation amps, running bi-amped into my system.
But to get them to sound right, the power supply issue has been critical. These amps really don't seem to quite come into their own unless running on batteries, especially the RedWine Audio Black Lightning LFP 25.6V supplies.
When equipped with the LFP supplies, the Sensations (Tripath based) really, really sing. You can FEEL the performers.... In my shoot-outs they have been way better than most any other amps I have auditioned, from SET to Hypex and give the best of the Pass and Cary efforts a very stiff challenge. Pretty amazing for a sub $1K amp.
So yeah, at least for this listener, Class D is pretty viable for the high-end... WHEN PROPERLY IMPLEMENTED.
Uhh, I kind of do realize this is supposed to be about Class-D and it's viability. I'd like to mention that I do most of my listening using Virtue Sensation amps, running bi-amped into my system.
But to get them to sound right, the power supply issue has been critical. These amps really don't seem to quite come into their own unless running on batteries, especially the RedWine Audio Black Lightning LFP 25.6V supplies.
When equipped with the LFP supplies, the Sensations (Tripath based) really, really sing. You can FEEL the performers.... In my shoot-outs they have been way better than most any other amps I have auditioned, from SET to Hypex and give the best of the Pass and Cary efforts a very stiff challenge. Pretty amazing for a sub $1K amp.
So yeah, at least for this listener, Class D is pretty viable for the high-end... WHEN PROPERLY IMPLEMENTED.
That damned Yellow Monkey!
Now I've got to start thinking about how to motivate more people to come out here and actually listen to these things...dealers wanted...sigh
Yeah, I guess I got carried away about explaining how I solved the problems...I was actually pretty jazzed about some of my own cleverness... 😀
Now I've got to start thinking about how to motivate more people to come out here and actually listen to these things...dealers wanted...sigh
Yes, power supply is very critical for class D amps. And it is not funny that they perform best when used with parallel shunt voltage regulators that eat all peak power when amps are at idle...
What power do you need to drive your holographic speakers?
I think what you're doing is interesting and worthwhile. How else is anyone going to get right brain input?
I hope you make a ton of money, also.
Best wishes.
I don't use a spell checker. By inference higher order modulation was tagged as a problem because it exercised the non-linearity of air (your interpretation of the problem). There are no harmonics THD or IMD involved in Earl's waveguides (to the first order).
There is a commercial forum to flog products BTW.
My guess is that Class D or Class T will dominate to the exclusion of all else in all but the "high end" once the requisite patents have expired.
There are so many ways to slice class D that I don't think there is any IP in the way of most solutions. The net solution cost of chip amps will win in many cases unless the power saving is imperative.
About 10W to 100W per channel
the woofer and tweeter sections are each about 3.25 ohm, fairly resistive and come in at about 94dB at 2.83V efficiency, so the Sensations can drive them to REALLY loud levels... so I would say that 10 W as a minimum if it's tube amp with decent overload characteristics...or really good 30 W if it's class A solid state.
You know what I'd really like to try? The Devialet amps... kinda sounds like the Quad current-dumping scheme, but implemented with a pristine class A section augmented by Class-D amps... to my simple EE mind this looks like a really genius implementation.
Devialet High End Audio integrated amplifier
And it looks like a mirror when hung on a wall, so now many of our audio-wives will be happy because they can be entertained by their own reflections 😀
My devious side would probably propose doing the class A section with tubes...yeah, that's the ticket, buy a 12,000 Euro amp x 4, then mod it with an in-circuit tube amp...
On a more practical note:
Hey Wavebourn, what would be a typical source impedance from a really good parallel-shunt regulator? I ask because it looks possible to get under 5 miliOhms from the larger LiFePo4 packs from Ping Batteries, and I'm of the opinion that this is one of the main reasons the LFP gets the Virtues to sound so dang good. (The LFP has under 20 miliOhm source Z)
So if I could get it to under 5 miliOhms, wonder what that would sound like!
When powered with the LFP at 25.6V, the Sensations put out about 90 really clean watts into a 4 Ohm load, and maybe 100+ into 3 ohms...
the woofer and tweeter sections are each about 3.25 ohm, fairly resistive and come in at about 94dB at 2.83V efficiency, so the Sensations can drive them to REALLY loud levels... so I would say that 10 W as a minimum if it's tube amp with decent overload characteristics...or really good 30 W if it's class A solid state.
You know what I'd really like to try? The Devialet amps... kinda sounds like the Quad current-dumping scheme, but implemented with a pristine class A section augmented by Class-D amps... to my simple EE mind this looks like a really genius implementation.
Devialet High End Audio integrated amplifier
And it looks like a mirror when hung on a wall, so now many of our audio-wives will be happy because they can be entertained by their own reflections 😀
My devious side would probably propose doing the class A section with tubes...yeah, that's the ticket, buy a 12,000 Euro amp x 4, then mod it with an in-circuit tube amp...
On a more practical note:
Hey Wavebourn, what would be a typical source impedance from a really good parallel-shunt regulator? I ask because it looks possible to get under 5 miliOhms from the larger LiFePo4 packs from Ping Batteries, and I'm of the opinion that this is one of the main reasons the LFP gets the Virtues to sound so dang good. (The LFP has under 20 miliOhm source Z)
So if I could get it to under 5 miliOhms, wonder what that would sound like!
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