Christophe,
Don't worry about me on that last execution, I kind of understood that I would be left standing on that one. I wasn't trying to bait the question, but I was wondering what the justification was going to be about the causality in blaming all the problems in an IC on the resistors. Then it became the entire topology of IC's. Besides the ultimate current carrying capabilities of a discrete device vs an IC I just still don't see why they are that different in final function?
Don't worry about me on that last execution, I kind of understood that I would be left standing on that one. I wasn't trying to bait the question, but I was wondering what the justification was going to be about the causality in blaming all the problems in an IC on the resistors. Then it became the entire topology of IC's. Besides the ultimate current carrying capabilities of a discrete device vs an IC I just still don't see why they are that different in final function?
Scott would know more but a mask set can be $1,000,000 if that is what is needed. Can you be more specific about the RFI problem and how to excite it? I know those are difficult issues to fix and are sometimes process related or so I have been told.
Old joke, I thought you would know it. "When the drool comes uniformly out of both sides of the mouth."
When I was building test equipment using them in parallel passing trucks would cause the meter to pin. Installing 20 turn 26 gauge coils wound around 1/4 w resistors in series with the input fixed that. J.C. and others seem to be doing the same. Since I had seen the problem and it went away there was no need to pin it down any further.
Now there ya go usin' them fancy words again. We did understand the word "truck."
John confuses issues of local loops and servos. This kind of confusion can produce effect near 99.9% of audiophiles. But it is more difficult to sell snake oil in the lobby of a convention of pharmaceutical laboratories.
It's good every now and again to hear audio done properly, to get away from the normal "precious" sound that a lot of people listen to. If a system can't be wound up, to drive the room hard and still sound clean, be totally convincing as a musical experience, then it's not working right - simple as that ...
Frank
If a system can't be wound up, to drive the room hard and still sound clean, be totally convincing as a musical experience, then it's not working right - simple as that ...
Frank,
That is a little bit simplistic don't you think. I have some great sounding speakers but they are only 6 1/2" diameter frame speakers. So while they will sound great at high levels, up to let's say 110db they are not a 15" cone. What happens is someone hears how clean they sound at high levels and just pushes them past the mechanical limit of the device, you just plain run out of excursion. Is there something wrong with the speakers, no, but there is a physical limit that you can expect from any speaker, you can't expect them to reach the level of a much larger sized equivalent quality speaker, you just can't get there from here kind of thing. I'm sure no expecting a VW Bettle to pull a boat just because it can get up the hill as well as a slow pickup truck, it just isn't capable to do that. Same goes for limits with speakers and room size what you should honestly expect from any speaker system.
Frank,
That is a little bit simplistic don't you think. I have some great sounding speakers but they are only 6 1/2" diameter frame speakers. So while they will sound great at high levels, up to let's say 110db they are not a 15" cone. What happens is someone hears how clean they sound at high levels and just pushes them past the mechanical limit of the device, you just plain run out of excursion. Is there something wrong with the speakers, no, but there is a physical limit that you can expect from any speaker, you can't expect them to reach the level of a much larger sized equivalent quality speaker, you just can't get there from here kind of thing. I'm sure no expecting a VW Bettle to pull a boat just because it can get up the hill as well as a slow pickup truck, it just isn't capable to do that. Same goes for limits with speakers and room size what you should honestly expect from any speaker system.
It is going to stay this way.
But what is 30 years compared to some “light years” lagging behind - say - an accomplished designer of advanced ICs?
A small slit was opened for you and us here, but you failed to notice.
George
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Of course there are physical limits in the very low bass area, Xmax must be respected, but IME this would be an extreme of sound source, and speaker tuning and equalisation to make happen. My belief is that a good bass driver in situ is one that you never perceive as moving, no matter what the loudness level is.
I have no special fondness for low bass, for me the action is everywhere else, so provided I'm not running remastered "Raw Power" at full tilt the speakers should do fine. Basically, my ears give up before anything else does, I wind back because my head says that the hearing mechanism needs recovery time.
Frank
I realize how far away many of you are from my tastes, I never wind it up and generally can't stand listening loud. I almost always prefer bass shy speakers too.
If you have a system that is limited in volume range, as mine is, then you realise that the subjective impression of sound intensity is, well, subjective. Part of that is that recordings are mastered at greatly varying average levels, I have recordings, a Kiri Te Kanawa CD is of special note, that maximum volume is just barely loud enough even for very conventional listening - the engineers adjusted everything to account for the single crescendo peak in one track, somewhere ...
So, really it's all about comfortably handling dynamic range ... I find that if the system can reproduce reasonably compressed rock n' roll cleanly at a high volume setting, then a solo piano at that same setting will be very natural, very convincing, and similarly for chamber works, they will give you the "in the room" goosebumps ...
Frank
So, really it's all about comfortably handling dynamic range ... I find that if the system can reproduce reasonably compressed rock n' roll cleanly at a high volume setting, then a solo piano at that same setting will be very natural, very convincing, and similarly for chamber works, they will give you the "in the room" goosebumps ...
Frank
Frank,
When you say you are not into low bass that is not a very easy thing to quantify. My 6 1/2" speaker will go solid down to 36hz@-3db and that is low enough for any music I listen to but some here want to get down to 20hz or even in extreme cases lower than that for home theater. So many consider that if they get a nice bump around 60hz they are satisfied, so bass is very subjective in where we are happy with it/ Most bass horns in a room are lucky to hit the 60hz range with any real output compared to the fundamental output at horn cutoff, so we are in a very gray area when we speak of bass fundamentals.
When you say you are not into low bass that is not a very easy thing to quantify. My 6 1/2" speaker will go solid down to 36hz@-3db and that is low enough for any music I listen to but some here want to get down to 20hz or even in extreme cases lower than that for home theater. So many consider that if they get a nice bump around 60hz they are satisfied, so bass is very subjective in where we are happy with it/ Most bass horns in a room are lucky to hit the 60hz range with any real output compared to the fundamental output at horn cutoff, so we are in a very gray area when we speak of bass fundamentals.
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