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- From: wtm@uhura.neoucom.edu (Bill Mayhew)
- Newsgroups: sci.electronics
- Subject: Re: 150 - 200 W. Amplifier
- Message-ID: <1993Jan26.144230.2613@uhura.neoucom.edu>
- Date: 26 Jan 93 14:42:30 GMT
- References: <C19H1r.1Ko@waterloo.hp.com> <1993Jan25.085151.25340@mr.med.ge.com>
- Organization: Northeastern Ohio Universities College of Medicine
- Lines: 40
-
- I agree that, in general, an expensive HiFi system sounds better
- than a cheap system. Cost and exotic components, however, do not
- necessarily have a causal relationship with pleasing sound
- reproduciton.
-
- The control/preamplifier in my stereo at home is a Fujitech A-102
- which is a US import verison of a Luxman Luxkit by the now apparently
- defunct Monarchy Engineering. The kit was under $300. Even
- assembled, it shouldn't have cost more than $500 were it available
- for sale as a finished product. The A-102 uses good quality, but
- definitely not exotic parts throughout and has very interesting
- quasi-direct coupled FET gain stages design. The gain stages are
- similar to class A-AB, but use op-amp stabilized soruce degenration
- (if you'll permit a bit of poetic license) with the opamps providing
- a variable load. I'm sure that tube type purists would sneer at
- the relatively complex and convoluted design. None the less:... I
- compared my finished A-102 against a much, much more expensive
- SP-10 in a system with everything else maintained a constant as
- possible. The testers agreed that both pieces sounded very good
- and there were some slight differences in the character of the
- sound, but there was no general agreement about which was more
- analytically correct. There were no substantive differences in
- so-called sound stage and other stereo buff type terminologies.
-
- The biggest problem is that there is not very much high quality
- source material available. Most commercially available recordigns
- are bad enough that they don't sound much better on a multi
- kilobuck stereo than a cheap boombox.
-
- The biggest problem I've seen in cheap sound equipment is woefully
- lousy power supplies. Plenty of improvement can be had without
- resorting fancy polyproylene dielectric capacitors, but with
- properly sized transformers and capacitors. Active regulation does
- wonders.
-
-
- --
- Bill Mayhew NEOUCOM Computer Services Department
- Rootstown, OH 44272-9995 USA phone: 216-325-2511
- wtm@uhura.neoucom.edu (140.220.1.1) 146.580: N8WED
-