[net.audio] stereo

tommy@houxa.UUCP (T.WEIDNER) (02/18/85)

I am interested in purchasing a stereo system.  My price
range is initially $600 for speakers and receiver.  Even-
tually I would like to include a turntable, equalizer, 
and CD in that order.  I read in Consumer Reports that 
the Sherwood's 2660CP 50 watt receiver is top rated in
my price range.  The Boston Acoustic A70 or Genisis 10
are the top rated speakers.
Does anyone have any recommendations that they could
pass on to someone starting new, given the stated financial
restraints.  I would appreciate any comments, in terms of
what factors I should be aware of in order to purchase
the most efficient receiver and speakers.  Any experiences
with the above mentioned units  or any other recommendations
would be greatly appreciated.

      houxa!tommy
      Tom Weidner

ben@moncol.UUCP (Bennett Broder) (02/19/85)

>I am interested in purchasing a stereo system.  My price
>range is initially $600 for speakers and receiver.  Even-
>tually I would like to include a turntable, equalizer, 
>and CD in that order.  I read in Consumer Reports that 
>the Sherwood's 2660CP 50 watt receiver is top rated in
>my price range.  The Boston Acoustic A70 or Genisis 10
>are the top rated speakers.
>Does anyone have any recommendations that they could
>pass on to someone starting new, given the stated financial
>restraints.  I would appreciate any comments, in terms of
>what factors I should be aware of in order to purchase
>the most efficient receiver and speakers.  Any experiences
>with the above mentioned units  or any other recommendations
>would be greatly appreciated.
>
>      houxa!tommy
>      Tom Weidner

My best advice would be to put your consumer reports aside, grab a
representative sample of your albums, and head for the stereo stores.
The selection of speakers is largely a matter of personal taste.
The criteria that makes consumer reports so reliable for selecting
television sets and toasters (frequency of repair, safety defects,etc.)
do not apply to high fidelity speakers, and I have found that CU's
reviewers are not entirely reliable when it comes to selecting
speakers.   I like to listen for 3 things in a speaker:

1) Imaging.  Does the speaker present a lifelike soundstage, or does
   the sound seem to come from all around, or perhaps from a box.
   A high quality speaker can give you a feeling of image height
   and depth, as well as width.
2) Do the instruments appear distinct or do they blend together
   in a muddy blur.
3) Does the speaker reproduce all audible frequencies at the same
   level (flat frequency response), or does it give unnatural
   emphasis to certain frequencies.  (Many speakers boost mid-bass
   and/or treble frequencies.  Such speakers might sound better at
   first - but will become fatiguing during a long listening session)

The trick is to take your time.  Don't let the salesman push you into
buying a speaker before you are ready.  The time you invest will be 
well spent, and you will be much more likely to get a speaker that you
will be satisfied with, than if you simply bought a model on the basis
of a favorable review.

Regarding selection of a reciever:  Here you are less likely to go wrong.
The difference in sound between one reciever and another is very small
relative to the difference in sound from one speaker model to another.
A model from any of the big manufacturers (Sony, Kenwood, Sherwood) is
likely to be satisfactory, since they all perform pretty much the
same.  When your ear becomes educated enough to be able to tell the
difference between one amplifier and another, you will want to trade
up to separate components anyway.

Hope this has been helpful.  I have always found that shopping for new
audio gear is half the fun.

                                       Ben Broder
                                       ..vax135!petsd!moncol!ben
                                       ..priceton!moncol!ben

herbie@watdcsu.UUCP (Herb Chong [DCS]) (02/20/85)

i second the suggestion and also want to add my 2 cents worth.  find the
friend you know who owns the most expensive stereo system and drag them
along too.  at least this way, you won't be intimidated as much and will
have a second opinion from someone you know and trust more than the sales
staff.

Herb Chong...

I'm user-friendly -- I don't byte, I nybble....

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smb@ulysses.UUCP (Steven Bellovin) (02/20/85)

I agree with moncol!ben that one shouldn't worry too much about receiver
choice.  At least in that price range (and probably in most higher price
ranges as well....), amplifier quality is about the same, and quite good.
FM behavior varies more; still, what you're really paying for are features
and power.  Decide what features you need/want, and don't worry too much
about moderate differences in power -- you have to double the power output
of an amp to make a significant difference.

For speakers, I agree with the recommendation -- listen for yourself -- but
not the comments on Consumer Reports.  When they rate speakers, they tell
you (a) closely-ranked units are of very comparable quality; (b) even with
units ranked significantly lower, taste is very importnat; (c) they're
measuring overall deviation from ideal -- but different speakers diverge
from 'flat' in different ways, which affects the way they sound.  Bring
with you some favorite records (in good condition -- buy a new copy if
necessary), ones that you know by heart, and listen closely.  Compare only
two pair of speakers at a time; after you eliminate one, compare it with
the next.  Insist that the output levels be matched -- it's well-known that
imperceptible differences in volume will significantly affect one's perception
of quality (the louder speaker sounds "better").  You may want to listen to
the best speakers in the store as well, for reference purposes.  To compare
speakers from different stores, arrange for a home trial -- most stores will
allow you to do this if you give them a post-dated check or credit card
receipt for the full price.  Apart from anything else, your listening environ-
ment makes a tremendous difference in the way the speakers will sound.  (I
realize that this is problematic if you don't have some receiver at home
already.)  Finally, one comment -- after taking up all this time of assorted
sales people at assorted stores, consider the ethical implications before
buying the identical speaker from a discount house.


		--Steve Bellovin

winkg@vice.UUCP (Wink Gross) (02/25/85)

> speakers.   I like to listen for 3 things in a speaker:
> 
> 1) Imaging.  Does the speaker present a lifelike soundstage, or does
>    the sound seem to come from all around, or perhaps from a box.
>    A high quality speaker can give you a feeling of image height
>    and depth, as well as width.
> 
                           etc.


>                                        Ben Broder
>                                        ..vax135!petsd!moncol!ben
>                                        ..priceton!moncol!ben

"image height"?  Would someone please explain how stereo with only
two channels could convey any spatial information on an axis perpendicular
to the line between the speakers?

				     Wink Gross
				     Tektronix

herbie@watdcsu.UUCP (Herb Chong [DCS]) (03/03/85)

In article <86@vice.UUCP> winkg@vice.UUCP (Wink Gross) writes:
>"image height"?  Would someone please explain how stereo with only
>two channels could convey any spatial information on an axis perpendicular
>to the line between the speakers?
>
>				     Wink Gross
>				     Tektronix

the height that can be heard is produced by psychoacoustics at work and
has little, it any correlation, with the actual vertical placement of
the instruments.  it seems that when pure tones are heard, certain
frequencies seem to come from specific directions no matter where the
actual sound source is.  speakers with vertical imaging do this to some
extent.  also, speakers are not ideal point sources with the tweeter and
bass drivers separated.  phase differences between different parts of
the spectrum of the played instruments emulate to some extent what happens
when these instruments are played close to reflecting surfaces of different
sound absorption properties.  since there are no such surfaces in the right
places, the eyes force the brain to do other things to come up with something
resembling reality.  you end up getting the illusion of vertical placement.
only good recordings with well recorded ambience and extremely low
distortion will provide this effect, and excellent equipment is required to
reproduce it.  simpler microphone techniques tend to show this better.

Audio, a year or so ago, had a very good article on psychoacoustics.  more
importantly, they have citations at the end of their articles so that you
can do more research.  i'm sorry, but i don't have the issue number or date.

Herb Chong...

I'm user-friendly -- I don't byte, I nybble....

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don@oakhill.UUCP (Don Weiss) (03/08/85)

[]

I don't know how many of you have noticed this, but over the years on my most
recent sets of speakers (i.e., ESS AMT-1's and Ohm Walsh 4's) I distinctly
perceive lower frequencies coming from a plane close to the floor, and higher
ones from a plane further off the floor.  In fact, sometimes the apparent
plane of origination is above the level of the radiating centers of the 
speakers.

I think I saw a reference to this effect some years ago in one of the hifi
magazines.

	Don Weiss