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Article #351Re: Any Sony CD Guru out there?
From: Trevor Wilson
Date: Tue, 12 Jul 2005 19:49
Date: Tue, 12 Jul 2005 19:49
49 lines
3268 bytes
3268 bytes
"Arny Krueger" <arnyk@hotpop.com> wrote in message news:X4-dnZRDL_aHhknfRVn-tQ@comcast.com... > "robert casey" <wa2ise@ix.netcom.com> wrote in message > news:xOUAe.21856$eM6.10366@newsread3.news.atl.earthlink.net >>>> it apart from cheap CD players. These include: >>>> Proper relay muting. >>> >>> >>> Nothing magic about that. Just something mechanical to >>> break. >>> >> A relay avoids any possible effects of the unmuted muting >> transistors causing distortion because of nonlinear > effects. > > But if there are no problems with distortion due to the > muting transistors, then the relay is futile. **IF that is the case, then yes. However, a relay avoids the possibility entirely. Muting transistors cause measureable problems in many units. Properly implemented relays cause no problems. Ever > >>>> Decent output stage, which does not include > primitive, >>>> 4558-style output ICs. >> >>> Nothing magic about that. Terevor, your phobia about > 4558s >>> isn't my problem. > >> Some op-amps can have crossover distortion issues. > > Yup in the late 60s and early 70s, but mostly not even then. > >> Don't know about the 4558 specifically though. > > I do. It's widely used in consumer and pro audio gear. **No. 4558 style chips have not been used in any decent equipment since before 1980. Even pro audio equipment manufacturers stopped using them two decades ago. They were resurrected by cheap Asian CD/DVD player manufacturers awhile ago. Decent equipment eschews the use of them. -- Trevor Wilson www.rageaudio.com.au
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X-Google-Thread: fb1f8,85de6927d4801af4 X-Google-Thread: 109f11,85de6927d4801af4 X-Google-Thread: 10d85e,85de6927d4801af4 X-Google-Thread: 108c0a,85de6927d4801af4 X-Google-Attributes: gidfb1f8,gid109f11,gid10d85e,gid108c0a,public X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!news.glorb.com!border1.nntp.dca.giganews.com!nntp.giganews.com!news1.optus.net.au!optus!news.optus.net.au!53ab2750!not-for-mail From: "Trevor Wilson" <trevor@SPAMBLOCKrageaudio.com.au> Newsgroups: rec.audio.tech,rec.audio.misc,rec.audio.opinion,aus.hi-fi References: <1121114855.242261.233780@o13g2000cwo.googlegroups.com> <nvudnQM4L7jNf0_fRVn-sQ@comcast.com> <42d2e8c0@news.comindico.com.au> <nNKdnUPYaeZ-nU7fRVn-3w@comcast.com> <42d30ad7@news.comindico.com.au> <v-WdnYJaSJ_PM07fRVn-gQ@comcast.com> <xOUAe.21856$eM6.10366@newsread3.news.atl.earthlink.net> <X4-dnZRDL_aHhknfRVn-tQ@comcast.com> Subject: Re: Any Sony CD Guru out there? Lines: 51 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.2180 X-RFC2646: Format=Flowed; Original X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Original-NNTP-Posting-Host: 220.240.28.13 Message-ID: <42d41ed6@news.comindico.com.au> X-Original-Trace: 13 Jul 2005 05:49:42 +1000, 220.240.28.13 Date: Tue, 12 Jul 2005 19:49:55 GMT NNTP-Posting-Host: 203.194.27.1 X-Complaints-To: abuse@comindico.com.au X-Trace: news.optus.net.au 1121197795 203.194.27.1 (Wed, 13 Jul 2005 05:49:55 EST) NNTP-Posting-Date: Wed, 13 Jul 2005 05:49:55 EST Organization: Comindico Australia - reports relating to abuse should be sent to abuse@comindico.com.au