Ralph, Prove it. Show us the measurements and the correlating listening tests.....you cannot. You just have Myths that you make up. Yes, it is not published because it does not exist. The only thing tricky is your mind here......you cannot fool anyone. You need to show proof. Your words are tricky (reality is real).....show us the beef! Show us the measurements that show how all op amps sound different.....since everyone who listens thinks they sound different. If they sound different there must be a measurement (according to you). But, of course, to you they all sound the same.....so why measure. How long will you keep up this charade? Till death do you part? Are you married to your opinion? Can you laugh at yourself? Can you feel the love and bliss that exist right now?
Could Class D really be that good?
I've heard statements praising modern class D amplifiers all the time but was sort of hesitant to try. Lately, one particular model caught my eye, the Fosi V3, which costs sub $100 but is praised for having refined sound like class A/B. To fulfill my curiosity, I quickly ordered one and tried it with my Burchardt S400II and Wharfedale Linton speakers. Basically, this is a neutral sounding amp but, to my surprise, the sound is clean, open, airy, with full mids, wide soundstage, good imaging/separation, with nearly null traces of the edginess, dryness, or lean sound that traditional class D amplifiers have. The background is just as quiet as my current systems. The core is the TPA 3255 chip from TI and comes with a 32v, 5A power block, which is supposed to deliver approximately 65 watts per channel (into 8 ohms). It drives the S400II/Linton without any hesitation, as well as my 130-watt-per-channel high-current Parasound A23. Very impressive.
Measurement is not everything. However, according to the lab test results, when operated under 10-60 watts, the distortion level (THD) is below 0.003%, better than a lot of high-end (price) gears. I am going to build around it for my fourth system with upgraded op-amp and LPS. I believe it will outperform my current mid-end (price) amplifiers.
I know, I know, quite a few Audiogoners' systems are above $100k, and mentioning this kind of little giant that costs a fraction could be rather embarrassing. But I thought this is just like gold digging with a lot of surprises and fun. Don't you think?
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- 166 posts total
- 166 posts total