Simple formula: 80% power to the bass, bottom two octaves (20Hz-80Hz), 20% to the rest of the system. Turn down the bass (I have a throttle control for it) and it sounds like a stock system (clean sounding though), but not damaging to the hearing. Compare SPL to live music and the sound system in the car *might* measure 115dB while live music can easily hit 125dB or more at the bottom end.
Humans have an inverted frequency curve to their hearing- the most sensitive is at or near 4kHz (hence where sirens are) and the least sensitive frequencies are at the bottom two octaves. Hearing damage occurs from a either an acoustic concussion (an explosive detonating at close range) or a regular pattern of exposure to high SPL of frequencies above 4kHz with little or no rest (e.g. factory workers or rock musicians). Exposure to the bottom two octaves of bass works the inner ear muscle without affecting the critical inner ear (cochlea) and can actually massage the muscles in the neck, hence the relaxation sensation which rocks. Incidentally, if you are exposed to daily high volumes of noise at work and are concerned about hearing damage (a valid concern indeed!), you can rest your ears while you sleep at night using swimmers' silicone earplugs (about a 25dB suppression)- it "restores" your hearing. -George -----Original Message----- From: Ricky Crow [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 14, 2003 9:36 AM To: George Freeman Cc: 'Ryan'; 'Michael Mishler'; [EMAIL PROTECTED] Subject: Re: CRX: RE: RE: Wear your %$#@*& seatbelt! Yeah, and let me go invest in hearing aide stocks.....which will be booming (no pun intended) in about 10 years from people like you. Ricky On Tue, 14 Jan 2003, George Freeman wrote: > It's a real problem now that the next generation of "taller" car is > the standard. My solution is if they can't see you, be sure they can > HEAR you and that means 12" subs in a 4th-order band pass box in the > rear. You'll crank enough bass that anyone within 100' will be > looking. If they cut you off, just meet 'em at the next light, get > real close to the rear, then pound 'em with bass, baby. I love it > when they try to inch closer to the car in front of them to get away > from you and can only go �-foot. Hee hee hee hee :). > > > George > "Little Beast" > '89 DX-Hybrid-D16Z6, 127k miles > Seats, Suspension, Engine, MSD > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] > On Behalf Of Ryan > Sent: Monday, January 13, 2003 11:38 PM > To: 'Michael Mishler'; [EMAIL PROTECTED] > Subject: CRX: RE: Wear your %$#@*& seatbelt! > > > I keep having people cut me off in traffic, I don't know if they are > just being rude or don't see me. I have my lights on most of the time > when it happens, when they cut me off I put the high beams on and honk > my horn, they still don't seem to notice (most of these are those 10 > MPG SUVs). I am thinking of putting my 1 million candle power > spotlight in the car and beaming their rear window when they do it or > maybe a semi truck horn would do the trick! > > Ryan > Cumming, GA > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On > Behalf Of Michael Mishler > Sent: Monday, January 13, 2003 8:05 PM > To: [EMAIL PROTECTED] > Subject: CRX: Wear your %$#@*& seatbelt! > > > Today I had the unique opportunity of having my beloved CRX flipped > completely over by a maintenence truck here in LA. I was driving back > from paying a court fine, and this joker makes a lane change without > looking I guess. I layed on the horn and hit the brakes, but his > trailer just proceeded to push me into the center divider....and the > car just flipped and skidded for about 40 feet. Whole roof pushed in. > I was just hanging there, upside down. I had tucked my body in the > minute the car flipped. All I could think about was saving my mellon. > When I went to hit the seatbelt latch, it wouldn't release so i had to > pull my body up into the seat and then hit the button. Car is > totalled, save for the engine parts. If I did not have my belt on, I > shutter to think how part of me could have easily been scrapped along > the underside. At least they were insured, and I only received some > minor cuts from the busted out windshield. WEAR YOUR BELTS! > > > > Michael Mishler > > Kognition Design > > 89 Si > > > > > _____ > > Do you Yahoo!? > Yahoo! <http://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com> > Mail Plus - Powerful. Affordable. Sign up > <http://rd.yahoo.com/mail/mailsig/*http://mailplus.yahoo.com> now > >
