Path: utzoo!attcan!uunet!cs.utexas.edu!uwm.edu!aero!chowkwan From: chowkwan@aero.org (Raymond Chowkwanyun) Newsgroups: rec.audio.high-end Subject: Re: high end car stereos Message-ID: Date: 21 Mar 90 18:00:34 GMT References: <9003210057.AA17666@neptune.AMD.COM> Sender: news@uwm.edu Organization: The Aerospace Corporation, El Segundo, CA Lines: 38 Approved: tjk@csd4.csd.uwm.edu Posted-Date: 21 Mar 90 17:25:30 GMT > zahid@neptune.AMD.COM (Zahid Ahsanullah) writes: >is colored due to cone momentum. Also 4 Ohms don't have much midrange >response anyway. Why does mid-range performance correlate with the impedance of the speaker? Don't some highly regarded home speakers such as electrostatics (martin logan) or ribbons (apogee) have very low impedances? Yet these are speakers reknowned for their midrange. > The tape deck is next being powered only by 12 volts. I have >designed enough amplifiers to know that 12 volts aint never gonna >cut it as far as frequency response is concerned. You need atleats 20 >volts to get anything decent out of a preamp. Something about Bipolar Your point about lack of volts is taken. Can this problem be gotten around by stepping up the voltage inside the amplifier? I've recently seen an ad for a tube amp for cars in TAS. I assume he has to step up the voltage to operate the tubes properly. >sheer sonic power. You could hear the boooooms and tisshhhh's for >literally blocks but nothing of the midrange. There was nothing you >could do to the equalizer to bring it out. The story is the same for >a lot of other `expensive' sound systems I have heard. Maybe I am too Flat frequency response is ideal. No-one is going to challenge that. However, there is compensation in being surrounded by four speakers that produce a 3 dimensional effect that I find enjoyable. For the record: I used to have an alpine/ads/infinity/generic speaker system in my car (before the accident which is another story). Your idea of putting a home system in a car is an intruiging one. I'd like to try it out (I have a spare NAD amp). Can you email me more details: like how did you get the amp to fit in your dash? Was it just because you made it yourself that you could get it small enough? -- ray