Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 (Tek) 9/28/84 based on 9/17/84; site vice.UUCP Path: utzoo!linus!philabs!cmcl2!seismo!harvard!talcott!panda!genrad!decvax!tektronix!tekcrl!vice!shauns From: shauns@vice.UUCP (Shaun Simpkins) Newsgroups: net.audio Subject: Re: cd players Message-ID: <144@vice.UUCP> Date: Thu, 8-Aug-85 13:00:48 EDT Article-I.D.: vice.144 Posted: Thu Aug 8 13:00:48 1985 Date-Received: Mon, 12-Aug-85 20:36:00 EDT References: <149@peregrine.UUCP> Distribution: net Organization: Tektronix, Beaverton OR Lines: 35 > I've been told by a salesperson that the Sony portable Cd player does not > produce as good a sound as some of the inexpensive <$300 non-portable units. > The reason given was that the Sony only has one laser and the non-portable > units have two. Is there any truth to this? Could this have something to > to with error-correction? I was under the impression that the Sony portable > had this feature. > Mike Wexler Oh, brother. If it doesn't sound as good, it's not because it has only one laser. They all have only one laser. The closest equivalent to the D-5 is the CDP-70, which like the D-5 is a brick wall filter design, and sells for about the same price. I was told by a Kyocera dealer that Kyocera CD players have better resolution than other players since other players split the laser beam into three components to track the disc, which uses up the least significant bit of the words decoded to figure out where to steer the readout beam. Kyocera, on the other hand, doesn't need a 3 beam tracking system since it mounts its electronics on ceramics which damp out the mechanical system vibrations and lets it recover ALL of the digital word with a single beam system. I awarded this fellow the Golden Shovel prize with a special commendation for reading absolutely nothing in the Kyocera sales brochure. Ignore your dealer's comments. Listen to the blasted thing instead. The wandering squash, -- Shaun Simpkins uucp: {ucbvax,decvax,chico,pur-ee,cbosg,ihnss}!teklabs!tekcad!vice!shauns CSnet: shauns@tek ARPAnet:shauns.tek@rand-relay