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- Newsgroups: rec.audio
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!rpi!batcomputer!alchemy.tn.cornell.edu!stevan
- From: stevan@alchemy.tn.cornell.edu (Stevan Vidic)
- Subject: Re: Planars and stuff...
- Message-ID: <1992Dec18.031739.9411@tc.cornell.edu>
- Sender: news@tc.cornell.edu
- Nntp-Posting-Host: alchemy.tn.cornell.edu
- Organization: Alchemy International
- Date: Fri, 18 Dec 1992 03:17:39 GMT
- Lines: 53
-
- I tried responding directly to Mike, but e-mail bounced.
-
- Hi Mike,
-
- There are hybrid designs that combine the best of both worlds. They are
- not easy to manufacture, but they cost less than full ribbons. Carver
- Platinum Mk IV is good example of a speaker that uses ribbons for mid
- range and treble, but four 12" cone woofers (per speaker) for bass.
- Unfortunately, because of Bob Carver's dispute with Stereophile and
- Absolute Sound, these magazines no longer carry ads for Carver equipment
- and refuse to review it. This top of the line Carver speaker can be
- bought for about $2500. There is also a smaller and cheaper model.
-
- Martin Logan makes hybrids as well but they are more costly. Apogee
- makes Centaur Minor, Centaur, and Centaur Major as their hybrids. I
- think Minors are under $1500. You may want to check this hybrid
- alternative (however, I'd bet many people would oppose the idea).
-
- The problem with planar speakers (a friend of mine has Maggies 2.6R) is
- that they are a pain to position properly and you pretty much spend the
- rest of your life moving them as well as furniture around your room.
- The other more troublesome issue is that ribbons are very delicate and
- do not last a long time. They also degrade sonically with time. My
- friend bought a 1-year-old demo pair from a dealer and after about 3
- months one of the ribbon panels died. He called the dealer and sure
- enough since the speakers were under warranty the ribbon was replaced
- free of charge (came really neatly packaged). But then (get this!) my
- friend realized just how lousy the corresponding panel on the other
- speaker was. By setting the sound to mono and switching between the
- two speakers it became painfully obvious that the old ribbon was dark
- and muffled. He took the cloth off and looking from the side noticed
- that the ribbon (which is BTW unbelieavably thin) has a couple of
- ridged areas almost like wrinkles, unlike the new ribbon that was
- perfectly flat. So he called the dealer to come take a look at that
- and dealer said he'd call Magnepan and get another replacement panel.
-
- Problems with planar speakers are accelerated in humid regions where
- they tend to degrade rather rapidly. Regarding their suitability for
- low frequency reproduction, I would agree with your statement. However,
- if you listen to rock music, there is something else to consider: how
- dynamic the speakers are and by that I mean can they deliver punch and
- slam. Yes, you can play them loud but they just do not rock. There is
- always the feeling of some restraint. I have listened to Quad ESL-63
- for quite a bit and they are excellent, excellent speakers. Beautiful
- classical music coming out of them. However, if I played some Rolling
- Stones, ZZ Top, Led Zeppelin etc. they just did not sound right. This
- has nothing to do with reproducing low bass (say, 45 Hz) because such
- low frequencies are seldom encountered in rock music (bass guitar will
- go down to 40Hz and ESL-63 can definitely handle 40Hz).
-
- Regards,
- Stevan
-
-