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General Car Audio
Decibal Level Chart.. who has it?
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<blockquote data-quote="kpozr2" data-source="post: 1933517" data-attributes="member: 565242"><p>128 HUMAN HEAD HAIR BEGINS TO DETECT VIBRATION -REF.1.1983</p><p></p><p>128 HUMAN CAN BEGIN TO DETECT VERY SLOW “BLAST WIND” OF 0.124 METERS/SECOND -REF.1.1983</p><p></p><p>130 (N)MARCHING BAND-OVERALL LEVEL AT A DISTANCE, 100-200 MEMBERS -REF.1.1996</p><p></p><p>132 EARDRUM “FLEX” TOTALLY NOTICEABLE -REF.1.1982</p><p></p><p>132.4(P) = 1 SOUND WATT MAXIMUM IN A SMALL SEALED BOX BELOW HYDRODYNAMIC CRITICAL LOW FREQUENCY</p><p></p><p>133 (N)GUNSHOT- EAR LEVEL, MAY VARY GREATLY TO SIZE AND TYPE OF GUN,</p><p></p><p>DURATION CONVERTED TO ONE SECOND, PEAK LEVEL MAY REACH 140-160 (P)</p><p></p><p>133.98 (P) = 1 MILLIBAR PRESSURE</p><p></p><p>135-122 (P) “VERY LOUD” CAR STEREO, ONLY BASS LEVEL, HIGHS RARELY ABOVE 115(P) -REF.1.1983</p><p></p><p>135-130(N) LARGE TRAIN HORN -REF.1.1985</p><p></p><p>135 HUMAN, A SLIGHT COOLING EFFECT BEGINS TO BE NOTICED, FROM AIR EXPANSION -REF.1.1983</p><p></p><p>136.498(P) = 1 TORR PRESSURE = 1 MILLIMETER MERCURY</p><p></p><p>137 HUMAN BODY VIBRATION IS STRONG -REF.1.1983</p><p></p><p>137-140 HUMAN EAR ALL FREQUENCIES ARE PAINFUL -REF.1.1983</p><p></p><p>140 EXTREMELY DAMAGING TO HEARING NO MATTER HOW SHORT THE TIME EXPOSURE</p><p></p><p>140 BLAST WIND = U = (PARTICLE VELOCITY) IS 0.49 METERS PER SECOND OR ABOUT 1 MPH</p><p></p><p>140 HUMAN THROAT AND VOCAL CORD VIBRATION BEGINS -REF.1.1983</p><p></p><p>141 HUMAN BODY BEGINS TO FEEL NASUEA AFTER A FEW MINUTES -REF.1.1983</p><p></p><p>141.918(P) = 1 INCH OF WATER PRESSURE</p><p></p><p>142 HUMAN BODY CHESTPOUNDING IS INTENCE -REF.1.1983</p><p></p><p>142 (P) INSIDE A CAR WITH TWO PRO 18 INCH WOOFERS AND 300 WATTS EACH -REF.1.1983</p><p></p><p>143 HUMAN BODY FEELS AS IF SOMEONE JUST FOOTBALL TACKLED YOUR CHEST -REF.1.1983</p><p></p><p>144 HUMAN NOSE ITCHES -REF.1.1983</p><p></p><p>145 HUMAN VISION BEGINS TO VIBRATE MAKING IT SLIGHTLY BLURRY, 1-3 DEGREES -REF.1.1983</p><p></p><p>145-136 (P)“COMPETITION” CAR STEREO, SIXTEEN 12 OR EIGHT 15, OR FOUR 18 SPEAKERS -REF.1.1983</p><p></p><p>146.1(P) AIR PARTICLE VELOCITY(WIND) IS 1 METER PER SECOND OR ABOUT 2 MILES PER HOUR</p><p></p><p>147 (N)FORMULA 1 RACE CAR, 700 HORSEPOWER, CHESTPOUNDING AND SUCTION FORCE ON CALM QUIET</p><p></p><p>MORNINGS CAN CLEARLY BE HEARD 6 MILES AWAY.-REF.1.1991</p><p></p><p>148 HUMAN VIBRATION VERY UNCOMFORTABLE AND SLIGHTLY PAINFUL -REF.1.1986</p><p></p><p>149 HUMAN LUNGS AND BREATHING BEGINS VIBRATING TO THE SOUND -REF.1.1986</p><p></p><p>150 (N)ROCK CONCERT “THE WHO” TWO 10 STORY STACKS = 144 DOUBLE REFRIDGERATOR SIZED SPEAKERS, ACTUAL LEVEL REACHED 120 DB AT A DISTANCE OF 32 METERS FOR THIS NORMALIZED READING OF 150 DB.CONTINOUS LEVEL 114-118db (P) AT 32 METERS -REF.1.1982</p><p></p><p>150 ROCK CONCERT SPEAKER AT 1600 WATTS ON THE ACTUAL VIBRATING SURFACE -REF.1.1991</p><p></p><p>150 HUMAN SENSATION OF BEING COMPRESSED AS IF UNDERWATER IS OVERWHELMING -REF.1.1983</p><p></p><p>150 HUMAN SOUND EXPERIMENTS DOWN TO 1 TO 2 HERTZ - REF.13.</p><p></p><p>152 HUMAN VIBRATION IS PAINUL AND ALSO FELT IN ALL JOINTS -REF.1.1983</p><p></p><p>153 HUMAN THROAT IS VIBRATING SO HARD IT IS ALMOST IMPOSSIBLE TO SWALLOW -REF.1.1983</p><p></p><p>154 TOY BALLOON POPPING, DEPENDS ON TYPE AND HOW LARGE AND HARD TO INFLATE -REF.1.1986</p><p></p><p>155 HUMAN BODY COMPRESSION AND EXPANSION TO VIBRATION IS TO THE “CORE” -REF.1.1983</p><p></p><p>155 HUMAN COOLING EFFECT IS HIGH, AS A GUESS 10 TO 25 DEGREES FARENHEIT? -REF.1.1983</p><p></p><p>156 (P)IN A MINI-VAN WITH TWENTY 12” WOOFERS AND 19,000 WATTS OF AMPLIFIER POWER.</p></blockquote><p></p>
[QUOTE="kpozr2, post: 1933517, member: 565242"] 128 HUMAN HEAD HAIR BEGINS TO DETECT VIBRATION -REF.1.1983 128 HUMAN CAN BEGIN TO DETECT VERY SLOW “BLAST WIND” OF 0.124 METERS/SECOND -REF.1.1983 130 (N)MARCHING BAND-OVERALL LEVEL AT A DISTANCE, 100-200 MEMBERS -REF.1.1996 132 EARDRUM “FLEX” TOTALLY NOTICEABLE -REF.1.1982 132.4(P) = 1 SOUND WATT MAXIMUM IN A SMALL SEALED BOX BELOW HYDRODYNAMIC CRITICAL LOW FREQUENCY 133 (N)GUNSHOT- EAR LEVEL, MAY VARY GREATLY TO SIZE AND TYPE OF GUN, DURATION CONVERTED TO ONE SECOND, PEAK LEVEL MAY REACH 140-160 (P) 133.98 (P) = 1 MILLIBAR PRESSURE 135-122 (P) “VERY LOUD” CAR STEREO, ONLY BASS LEVEL, HIGHS RARELY ABOVE 115(P) -REF.1.1983 135-130(N) LARGE TRAIN HORN -REF.1.1985 135 HUMAN, A SLIGHT COOLING EFFECT BEGINS TO BE NOTICED, FROM AIR EXPANSION -REF.1.1983 136.498(P) = 1 TORR PRESSURE = 1 MILLIMETER MERCURY 137 HUMAN BODY VIBRATION IS STRONG -REF.1.1983 137-140 HUMAN EAR ALL FREQUENCIES ARE PAINFUL -REF.1.1983 140 EXTREMELY DAMAGING TO HEARING NO MATTER HOW SHORT THE TIME EXPOSURE 140 BLAST WIND = U = (PARTICLE VELOCITY) IS 0.49 METERS PER SECOND OR ABOUT 1 MPH 140 HUMAN THROAT AND VOCAL CORD VIBRATION BEGINS -REF.1.1983 141 HUMAN BODY BEGINS TO FEEL NASUEA AFTER A FEW MINUTES -REF.1.1983 141.918(P) = 1 INCH OF WATER PRESSURE 142 HUMAN BODY CHESTPOUNDING IS INTENCE -REF.1.1983 142 (P) INSIDE A CAR WITH TWO PRO 18 INCH WOOFERS AND 300 WATTS EACH -REF.1.1983 143 HUMAN BODY FEELS AS IF SOMEONE JUST FOOTBALL TACKLED YOUR CHEST -REF.1.1983 144 HUMAN NOSE ITCHES -REF.1.1983 145 HUMAN VISION BEGINS TO VIBRATE MAKING IT SLIGHTLY BLURRY, 1-3 DEGREES -REF.1.1983 145-136 (P)“COMPETITION” CAR STEREO, SIXTEEN 12 OR EIGHT 15, OR FOUR 18 SPEAKERS -REF.1.1983 146.1(P) AIR PARTICLE VELOCITY(WIND) IS 1 METER PER SECOND OR ABOUT 2 MILES PER HOUR 147 (N)FORMULA 1 RACE CAR, 700 HORSEPOWER, CHESTPOUNDING AND SUCTION FORCE ON CALM QUIET MORNINGS CAN CLEARLY BE HEARD 6 MILES AWAY.-REF.1.1991 148 HUMAN VIBRATION VERY UNCOMFORTABLE AND SLIGHTLY PAINFUL -REF.1.1986 149 HUMAN LUNGS AND BREATHING BEGINS VIBRATING TO THE SOUND -REF.1.1986 150 (N)ROCK CONCERT “THE WHO” TWO 10 STORY STACKS = 144 DOUBLE REFRIDGERATOR SIZED SPEAKERS, ACTUAL LEVEL REACHED 120 DB AT A DISTANCE OF 32 METERS FOR THIS NORMALIZED READING OF 150 DB.CONTINOUS LEVEL 114-118db (P) AT 32 METERS -REF.1.1982 150 ROCK CONCERT SPEAKER AT 1600 WATTS ON THE ACTUAL VIBRATING SURFACE -REF.1.1991 150 HUMAN SENSATION OF BEING COMPRESSED AS IF UNDERWATER IS OVERWHELMING -REF.1.1983 150 HUMAN SOUND EXPERIMENTS DOWN TO 1 TO 2 HERTZ - REF.13. 152 HUMAN VIBRATION IS PAINUL AND ALSO FELT IN ALL JOINTS -REF.1.1983 153 HUMAN THROAT IS VIBRATING SO HARD IT IS ALMOST IMPOSSIBLE TO SWALLOW -REF.1.1983 154 TOY BALLOON POPPING, DEPENDS ON TYPE AND HOW LARGE AND HARD TO INFLATE -REF.1.1986 155 HUMAN BODY COMPRESSION AND EXPANSION TO VIBRATION IS TO THE “CORE” -REF.1.1983 155 HUMAN COOLING EFFECT IS HIGH, AS A GUESS 10 TO 25 DEGREES FARENHEIT? -REF.1.1983 156 (P)IN A MINI-VAN WITH TWENTY 12” WOOFERS AND 19,000 WATTS OF AMPLIFIER POWER. [/QUOTE]
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