Can you share your test data now that weekend has passed and that setup was made?
I say that data is worth 1000 words.
True, measurements are very important to get good sound. On the other hand it has its limitations. Just 2 examples:
1. Take a Japanese amp from the 80's like Yamaha and compare the data vs lets say an integrated 300B SE triode amp. Yamaha wins hands down by a large margin. But in direct comparison the Yamaha will sound unbearable.
2. Even a $300.000 measuring equipment cant tell you if the mid driver of a 3-way system is metal or paper cone. But the village idiot can hear the difference in seconds.
Measuring equipment is very useful and needed to get good results but it is endlessly stupid, it cant even sort out the simplest things...
Is this another theoretical claim or did you made a listening test? I'm very interested cos some claim linear sounds better and others claim no difference in sound.
Last time I made a listening test linear vs SMPS (with a Tripath D-Amp) the linear was too slow and slightly muddy. Meanwell won over an expensive toroidal with top of the shelf Nichicon caps (KZ & FG) and chokes.
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No, sorry.
Because of the corona, I am more at work than at home. Therefore, there is not enough time for measurements, I will try to do it 26-27th
Dude, I made 4 versions of the amplifier on TPA3255, made 3 versions of the SMPS, so this is not a theory, this is practice.
Thanks amigo )
I personally use a double AK4497 Dac with two linear PSU and 2 OPA1656 + 2 OPA1612, this combo seems to work really well with the OP amps MC33272 from TPA3255 amp.
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I agree.. take a look a this (got it from ASR) but keep in mind : SINAD at 5W 1kHz 4 ohms seems very representative measurement of real use (moderate volume, frequency that our hearing is most sensitive, most common speaker impedance), but probably does not tell all things.
SINAD list for 3rd party measured amplifiers - Google Sheets
I think there is always a part of marketing and commercial orientation in the measures ... take a good look at the above Excel table and check the measures announced by the manufacturers, I take the example for BOSC Gan Modules, in this table is only ranked 20th and when I wrote to Orchardaudio to announce this ranking to him, he rather seemed to tell me that the results of the table didn't mean so much ...
I think the measurements differ from one piece of equipment to another and probably the measurement techniques too!
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I disagree.
It's not about LPS or smps, but rather a few things that are measurable. Noise, first. Compare the 2 up to 20khz. LPS has an advantage in terms of load response since it has no feedback hence no delay. Keep in mind that not all LPS are equal nor are smps.
So it's not as simple as LPS vs smps but rather test data. Again
I use AK4490 with self made linear PSU with double voltage regulators. Audio PC as source playing from RAM with JRiver Media player.
Politics and off-topic removed.
My self made preamplifier with mains filter and external mains transformer. The knob fronts are real ebony & ivory. All case sides are 10mm aluminium.
The transport case was made by me and a french friend.
Weight: 16,5kg The weight was calculated by 2 experts so I can put the pre in 1m distance to a speaker playing 20Hz@120dB without anything resonating.
The transport case was made by me and a french friend.
Weight: 16,5kg The weight was calculated by 2 experts so I can put the pre in 1m distance to a speaker playing 20Hz@120dB without anything resonating.
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