Soundstream Tarantula

Would my Sub Woofers cause hearing loss?

I recently hooked up the following system in my car..

2x t4-12 (12 inch) Soundstream Tarantula Sub Woofers
rated at 900 W RMS each

1 x Monoblock Soundstream pca1500d amplifier
rated at 1500 W RMS

I generally don't pump the system unless a friend wants to hear it. What kinda decibels would I be producing with this kind of setup and am I causing any immediate hearing loss when pumping it all the way?...

Thanks in Advance!

A dangerous sound is anything that is 85 dB (sound pressure level - SPL) or higher. - basically yes it is.

Sounds dB SPL
Rocket Launching 180
Jet Engine 140
Thunderclap, Air Raid Siren 1 Meter 130
Jet takeoff (200 ft) 120
Rock Concert, Discotheque 110
Firecrackers, Subway Train 100
Heavy Truck (15 Meter), City Traffic 90
Alarm Clock (1 Meter), Hair Dryer 80
Noisy Restaurant, Business Office 70
Air Conditioning Unit, Conversational Speech 60
Light Traffic (50 Meter), Average Home 50
Living Room, Quiet Office 40
Library, Soft Whisper (5 Meter) 30
Broadcasting Studio, Rustling Leaves 20
Hearing Threshold 0

A clap of thunder from a nearby storm (120 dB) or a gunshot (140-190 dB, depending on weapon), can both cause immediate damage.

When listening to music on earphones at a standard volume level 5, the sound generated reaches a level of 100 dB, loud enough to cause permanent damage after just 15 minutes per day.

Decibel Exposure Time Guidelines

Accepted standards for recommended permissible exposure time for continuous time weighted average noise, according to NIOSH and CDC, 2002. For every 3 dBs over 85dB, the permissible exposure time before possible damage can occur is cut in half.

Continuous dB

Permissible Exposure Time

85 db 8 hours

88 dB 4 hours

91 db 2 hours

94 db 1 hour

97 db 30 minutes

100 db 15 minutes

103 db 7.5 minutes

106 dB 3.75 min (< 4min)

109 dB 1.875 min (< 2min)

112 dB .9375 min (~1 min)

115 dB .46875 min (~30 sec)

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