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That's incorrect. In the last 30 years (since 1993), we have got class D amplifiers which can be both power-efficient and as flat as human ears can detect, swit
by dsr_ 3y ago
That's incorrect. In the last 30 years (since 1993), we have got class D amplifiers which can be both power-efficient and as flat as human ears can detect, switching power supplies to go along with them, DACs which are both cheap and absolutely transparent, MP3 and other perceptual lossy codecs, FLAC and ALAC, near field scanners to evaluate speaker performance, the Olive scoring method and several preference curves, and extreme improvements in bandwidth and storage.
- fsckboy 3y agothere were commercial class D amplifiers in the 1970s, Sony iirc. but back then Philips had a very cool amplifier, not class D, which fed a signal from the loudspeaker cone back into the negative feedback loop to correct any error!
- dsr_ 3y agoThey were invented in 1955, but high quality class D audio amplifiers have only been around since the mid90s, and are only now available as simultaneously good, high-power, and cheap. Servo-controlled subwoofers are readily available these days; full-range servo systems are comparatively rare, because the end user generally wants room-calibrated equalization anyway.
- kevin_thibedeau 3y agoAudiophools have been convinced that none of that faithfully reproduces a recording. It's tech for the common people who can't afford a real amp fed by oxygen free cabling to a phonorecord player with a 60 dB noise floor.