Frank Zappa on vinyl, BAM (Bay Area Music magazine) [1987]:
http://www.afka.net/Articles/1987-01_BAM.htm
BAM: Working with a computerized synthesizer, do you find that vinyl is no longer the most desirable way to present your music? Will you be releasing CD-only recordings?
FZ: Well, vinyl never really was all that terrific a medium anyway. Some people cling to the belief that vinyl sounds better. I don't know. Not to my ear. I like it on digital tape myself.
BAM: There's supposed to be a warmth to vinyl.
FZ: Well, let's analyze what the word warmth is. Does warmth mean a lack of top end, or an extra bunch of frequency bulge at 300 cycles. What the fuck is warmth? How do you quantify that in audio terms?
BAM: Critics don't have to quantify in audio terms. We use words like warmth.
FZ: Yeah, well, you know, you can demonstrate pseudo-warmth in a technical way in the studio by using a broad-band equalizer and boosting things around 300 cycles, you know. It just gets pudgier. And you roll off the top end a little bit, and things start to sound, you know, warm! – if that's the kind of sound that you like. I don't particularly care for that sound.
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Mix Magazine [1983]:
http://www.afka.net/Articles/1983-06_Mix.htm
Mix: The complaint has been that the digital tape sounds great, but when you transfer it to an analog medium you get a whole different sound.
FZ: You do get different stuff, and the reason you do is that the dynamic range of the digital tape is 90 dB and the dynamic range of a record is about 45 to 50 dB. So you can't let all the peaks go where they would normally go – you have to compress it. But if you're going to plan for the future, I think ultimately records are going to be released on compact discs, little laser discs, and they've got 90 dB. There's a way to do it. I'll compensate to get it on a piece of vinyl and still have the right thing digitally.