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- From: rkarlqu@scd.hp.com (Richard Karlquist)
- Newsgroups: rec.audio
- Subject: Re: Planars and stuff...
- Date: 18 Dec 1992 02:27:20 GMT
- Organization: Hewlett Packard Santa Clara Site
- Lines: 39
- Message-ID: <1grcu8INN203@hpscit.sc.hp.com>
- References: <sikorsky.724636866@ee.ualberta.ca>
- NNTP-Posting-Host: hpscrj.scd.hp.com
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-
- Mike Sikorsky (sikorsky@ee.ualberta.ca) wrote:
- :
- : that I should go for a design that almost does this. Well knowing the 'lack'
- : of low bass from planars, I readily accept that the rest of the audio
- : spectrum that they do reproduce readily can outperform even the most costly
- : box designs. Why, then, would/should I pay countless dollars just to
- : reproduce a range of music (15-45 Hz) that is generally absent from most
- : recordings?
-
- I am a big fan of planar speakers, but I disagree with your premise. Most
- planar speakers do not have a small signal bandwidth down to 45 Hz. and
- none have a full power bandwidth down to that frequency. The cutoff is more
- like 200 Hz. Also, their bass response is highly dependent on the room
- acoustics (much more so that cone speakers) because the diaphragm is loaded
- acoustically whereas a cone is loaded mechanically by cone mass and the
- enclosure. Also, many planar speakers cannot reproduce really high SPL's
- even at 1 kHz.
-
- I knew a guy with two pairs of KLH-9's driven by four 300 watt amplifiers
- installed in a custom built audio room. He had enough power to arc over
- the speakers. They sounded great (but not loud). However, the
- average 3-way 12-inch cone speaker system with a 100 watt/channel receiver
- could drown them out easily at either bass or midrange frequencies.
- Of course, you had to sit in the (one) official listening chair to get
- the right sound. Also, consider that if he had to install the system
- in the living room, the XYL would have vetoed the KLH-9's on the grounds
- of size (four 6 foot high by 2 foot wide panels!).
-
-
- --
- -------------------------------------------------
- | Rick Karlquist |
- | Hewlett-Packard Santa Clara Division |
- | Precision Time and Frequency R&D |
- | |
- | email: rkarlqu@scd.hp.com |
- | landline: (408)-553-2194 |
- | radio: N6RK |
- ------------------------------------------------
-