perpetual motion? free energy?
https://docs.sony.com/release/specs/STRDE185spec.pdf
Amplifier Section
• Stereo Power Rating:
100W x 2 (8 ohms, 20Hz
- 20kHz, THD 0.09%)
• Power Requirements:
AC120V, 60Hz
...
• Power Consumption (in
Operation): 190W
did Geddes suggestion at least have power in higher than power out?
at 7.1 you expect stereo use would have good reserve even with pwr spec games
Originally Posted by gedlee
https://docs.sony.com/release/specs/STRDE185spec.pdf
Amplifier Section
• Stereo Power Rating:
100W x 2 (8 ohms, 20Hz
- 20kHz, THD 0.09%)
• Power Requirements:
AC120V, 60Hz
...
• Power Consumption (in
Operation): 190W
did Geddes suggestion at least have power in higher than power out?
at 7.1 you expect stereo use would have good reserve even with pwr spec games
Originally Posted by gedlee
not completely sure about his numerology, maybe Geddes was using a 16 bit DAC
16 bits does seem limiting, creating problems that shouldn't exist in the past decade if you wanted -120 THD, noise, spurs from a 0 dB fs signal to start
and of course 40-60 dB analog attenuation would be a big help - maybe he doesn't like gain switching?
I don't think you need to look that deep below the noise floor but it is one perspective on amp performance #
16 bits does seem limiting, creating problems that shouldn't exist in the past decade if you wanted -120 THD, noise, spurs from a 0 dB fs signal to start
and of course 40-60 dB analog attenuation would be a big help - maybe he doesn't like gain switching?
I don't think you need to look that deep below the noise floor but it is one perspective on amp performance #
I tried to get Earl in here to talk about some of this stuff, but he wasn't interested.
And yes, cognitive dissonance is a fairly large problem, especially for people who have held beliefs (and those beliefs have been lying to their brains on behalf of their ears) for many years, or decades.
Too bad we're not all a bit closer. If someone out there has a Parasound, I have that Sony.
Earl does not suffer the foolishness well, I was just asking since I have no problem doing THD at 100mV rms levels.
Dosnt matter how much noise ther is it won't change the timing. The snare and base will still play together.
They haven't. Or, at least, it hasn't been shown to exist in a level matched double blind test.
Enviado de meu GT-I9505 usando Tapatalk
TDA8950 PWM chip. Has low level but very high order distortion spectra, think H100++. Most of all it modulates this sprectrum heavily with signal, complete unstable and *that* is what makes it so very audible. Decaying bass notes sound like Digeridoo, actually. Of course, that chip is definitely to be filed under broken/incompetent, quite in contrast to the (now obsolete) TDA8920.
No, it doesn't (answering for abraxalito) - it refers to the subjective sense of those attributes in the music, not absolutes that can be comparatively easily measured ... it seems that many of the people here have never in their music listening years ever had the experience of putting on a favourite track, which normally had a tremendous sense of urgency and drive about it for them, on a system which managed, somehow, to turn it into a dull, plodding, dreary nothing. If this has never happened to you, then there is no chance that you would ever "get it" ...
Last edited:
So you've apparently asked a question and yet in the same paragraph you've already made your mind up as to the answer? If so then it seems its pointless giving you an answer. However if your final sentence you didn't really mean then perhaps there's value in replying. Do please clarify.
If one can't separate out the effect of one's mood when assessing equipment then I don't think there is much point in trying for "decent sound" - any old rubbish should be good enough, because you can always "adjust" the quality by loading yourself up on enough alcohol ...
Mood can play some part - if you're in a "good" mood then you're very forgiving, relatively tolerant of the system's shortcomings - I've experienced being in a foul frame of mind, for some reason, while the system playback was of a high order, and it still sounded good - having a stroppy attitude didn't pervert the perceived quality ...
Mood can play some part - if you're in a "good" mood then you're very forgiving, relatively tolerant of the system's shortcomings - I've experienced being in a foul frame of mind, for some reason, while the system playback was of a high order, and it still sounded good - having a stroppy attitude didn't pervert the perceived quality ...
Hi,
Alcohol as an equalizer, now that's an idea.
Does brand and millesime matter too?
Seriously though, alcohol and serious listening don't go well together.
Bit late to the party but even though I somewhat understand what TS is driving at to me the terms that are tossed about here mean the following:
Voicing: you, as the designer have the topology of the circuit right, i.o.w the gear is working properly and you measure no obvious faults.
You're not 100% happy with the listening results and then try to extract the maximum out of the existing design by making changes.
Any kind of changes varying different passive components to whatever until you feel satisfied with the sonic result.
The DUT sounds more balanced across the FR range, more transparent so to speak. (At least, that should be the goal unless you're making an "Effect box").
PRaT: could be related to the above somewhat but I feel it more source related. Some TT's that do not run at the correct speed or suffer other anomalies can mess it up as do lots of CD players/DACs.
Naturally, if the musicians can't play a tune there's nothing you can do about it.
Some recordings can mess it up as well but other than that?
Soundstage: Certainly not an illusion in my book and any amp or other piece of gear should not mess it up. Most do. Not easy to achieve unless you have a lot of experience setting up systems and even then you'll notice no two amps render the image the same way. Amp/speaker interaction?
To me this has everything to do with phase.
Timbral accuracy: intertwined with all of the above except PRaT.
Somewhat related: micro dynamics, macro dynamics, intrinsic noise levels and their spectrum spread.
From personal experience the first place to look is the PSU since that's were most manufacturers pinch the pennies.
Ciao,
Alcohol as an equalizer, now that's an idea.
Does brand and millesime matter too?
Seriously though, alcohol and serious listening don't go well together.
Bit late to the party but even though I somewhat understand what TS is driving at to me the terms that are tossed about here mean the following:
Voicing: you, as the designer have the topology of the circuit right, i.o.w the gear is working properly and you measure no obvious faults.
You're not 100% happy with the listening results and then try to extract the maximum out of the existing design by making changes.
Any kind of changes varying different passive components to whatever until you feel satisfied with the sonic result.
The DUT sounds more balanced across the FR range, more transparent so to speak. (At least, that should be the goal unless you're making an "Effect box").
PRaT: could be related to the above somewhat but I feel it more source related. Some TT's that do not run at the correct speed or suffer other anomalies can mess it up as do lots of CD players/DACs.
Naturally, if the musicians can't play a tune there's nothing you can do about it.
Some recordings can mess it up as well but other than that?
Soundstage: Certainly not an illusion in my book and any amp or other piece of gear should not mess it up. Most do. Not easy to achieve unless you have a lot of experience setting up systems and even then you'll notice no two amps render the image the same way. Amp/speaker interaction?
To me this has everything to do with phase.
Timbral accuracy: intertwined with all of the above except PRaT.
Somewhat related: micro dynamics, macro dynamics, intrinsic noise levels and their spectrum spread.
From personal experience the first place to look is the PSU since that's were most manufacturers pinch the pennies.
Ciao,
- Status
- Not open for further replies.