Bear it might be easier if Jan took a couple of day stop on his next visit and I would gladly drive the two of us up to your den. I just bought my wife a new Audi Q7, very comfortable ride, we could borrow.
I think we are in violent agreement
context needed. Some capacitors break in has been known about for longer than I have been on this planet.
Speciality cables are a fraud. Especially the ones with big magnets on them. I've had to sign off POs on £2000 1m cables before, but those were guaranteed to 5GHz and had APC-7s on.
But the fact that cable configuration affects LCR parameters isn't something anyone is likely to argue with.
@Kirchoff: I'm a systems guy. There is no one over riding parameter. It's also a bitch to specify unlike say, colour gamut and related parameters for a monitor.
Seems promising/possible, but this ought to be done back channel, aka email.
This is a better plan, once I retire (Dec 30th) it will be easy to arrange. I hope we can keep it nice and friendly AND actually accomplish at least something. I heard from Jan last week still no SY?
Very good, then we don't need to argue on that point.
Let's recapitulate which parameters the numerologists will generaly measure and list in an amp's "specifications" list:
- input sensitivity
- max sustained power
- bandwidth
- noise
- THD
- IMD
- slew rate
- damping factor
I've been generous as usually they don't list that many.
Now, anyone here that can produce a model in the format m=f(parameters listed above) that will calculate a merit factor that would allow to accurately predict the ranking of amplifiers from a "musical enjoyment" perspective in listening tests?
If you deliberately design an amp to roll off at 10k what's the point? You don't believe in any measurements so you can't do any to make a point one way or the other. Make effects boxes, who cares? Some SET's, Cary so distorted anyone can hear but still love fine with me, I really don't care.
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Can't answer a question phrased like that and you know it. Enjoyment as has been said on many occasions is a personal thing. Some enjoy a beer and a film, some wine and music. Others pay good money to be tied down and whipped by a woman in leather.
Toole has I understand (not read it) published showing that people in a blind test will prefer lower distortion, but that is speaker testing which is 100x the level of (say) a good op-amp line stage. Geddes has in fact gone further and none of the above move the Gedlee metric far other than x-over distortion, which you don't even touch on.
BTW you missed overload recovery. I am firmly in the camp that believes that is a parameter that should be given more bench time. I have no proof to hand, but it warrants serious investigation.
Toole has I understand (not read it) published showing that people in a blind test will prefer lower distortion, but that is speaker testing which is 100x the level of (say) a good op-amp line stage. Geddes has in fact gone further and none of the above move the Gedlee metric far other than x-over distortion, which you don't even touch on.
BTW you missed overload recovery. I am firmly in the camp that believes that is a parameter that should be given more bench time. I have no proof to hand, but it warrants serious investigation.
Ditto, Bill. Is the modern opamp being held to some ideal? I thought the point was that it will be nigh impossible (for many line-level applications, misbehaving caveats applied) to tell the difference between different modern opamps. And, yes, that difficulty arises from the fact that they all do their job with such aplomb. Many discrete circuits (opamps themselves) fall under that same category.
There are those that argue "hi-fi" must adhere to utmost in perfect playback. So be it. Another person may well enjoy -20 dB 2HD, no problem. Measurements are sure nice to understand what's going on, and in the case of opamp rolling may either point to oscillations, real changes in response, or, well, no real changes in response.
There are those that argue "hi-fi" must adhere to utmost in perfect playback. So be it. Another person may well enjoy -20 dB 2HD, no problem. Measurements are sure nice to understand what's going on, and in the case of opamp rolling may either point to oscillations, real changes in response, or, well, no real changes in response.
I don't know the recording signal path/gear, but I do know that one filter was used on the audio interface USB cable, and others on bass and guitar rigs, power and signal.
I have downloaded the album, and it sounds good, really good, nice ease, big clarity and huge sense of power.
The Heavy Hitters album used the same filters and that recording sounds damn good too.
Only sort of downside is that the pb system does not get nasty, so the the louder you run the recording the more fun it gets.....and then the system runs out of power
Dan.
Dunno Bill but sometimes I have the impression you're doing it just for the sake of contradicting me 😕
Coming back to Toole. One may notice that what he did there was on the lines of "everything else being equal". Vary though volume or tonal balance or somethig else and the preferences may change. This didn't stop though some charlatans to declare THD "the holy grail" and start the "purist" movement. Where, through eliminating "everything else" (like tone controls) they could achieve marginaly lower THD figures and declare "victory" over the competition.
This kind of explains the current appetite for vintage audio equipment. After the (expensive but insatisfactory) "purist" experiment the public said "screw it" and looked to getting back their tone controls.
No. If you are (IMO) wrong, I will say so.
Plus you are on record as saying you are only posting on this thread for sh*t and giggles and have the award for most joker icons used in a week. So you have to accept not always been taking totally seriously 🙂
Ref the purist movement, I can't comment on how it started in USA, but believe a man with initials ML had something to do with it.
In UK it was spearheaded by Ivor and Julian, neither of whom claimed THD to be the be all and end all, but instead started the modern mystic movement of 'a good story for the journos'. It could be argued that Peter walker sewed the seeds, but at least he put usable tone controls on his equipment and was not afraid of using the work of Peter Baxendall.
I've been looking again at the audio palette original design schema. Dick Burwen has put some (to me) very clever tricks in there. DSP is easier, but you lose ease of use.
Plus you are on record as saying you are only posting on this thread for sh*t and giggles and have the award for most joker icons used in a week. So you have to accept not always been taking totally seriously 🙂
Ref the purist movement, I can't comment on how it started in USA, but believe a man with initials ML had something to do with it.
In UK it was spearheaded by Ivor and Julian, neither of whom claimed THD to be the be all and end all, but instead started the modern mystic movement of 'a good story for the journos'. It could be argued that Peter walker sewed the seeds, but at least he put usable tone controls on his equipment and was not afraid of using the work of Peter Baxendall.
I've been looking again at the audio palette original design schema. Dick Burwen has put some (to me) very clever tricks in there. DSP is easier, but you lose ease of use.
The pursuit of objective numbers, even if blindly, goes back past the Greeks, methinks.
This is yet another manifestation.
Or a modern, minimalist aesthetic with clean, angular faceplates. No place for tone controls there.
Anyhow, the grand majority of audio devices still has some form of tone controls. I think we're forgetting the ever-ubiquitous, oft maligned, home receiver. Lot more of those guys around than the hoity toity stuff.
This is yet another manifestation.
Or a modern, minimalist aesthetic with clean, angular faceplates. No place for tone controls there.
Anyhow, the grand majority of audio devices still has some form of tone controls. I think we're forgetting the ever-ubiquitous, oft maligned, home receiver. Lot more of those guys around than the hoity toity stuff.
I miss my old Soundcraftsmen preamp with (I think) 9 band EQ. It was good to have for adjusting for room acoustics or playback of poorly mixed recordings lacking in bass.
Well that joker icon usually appears when someone denies the obvious - e.g. that the Blowtorch thread exists. Or posts some other blattant BS. There aren't many ways to reply to such.
And then there's this "ridendo castigat mores" thing, maybe it works......
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