How much dB can an 180 Watt amplifier produce?

Question

I'm wondering how powerful my amp is: 180W, 60Hz, 115V.

Answer 1

One of the critical parameters that you need to know is the sensitivity of you speakers. A value of around 95 dB/watt measured at 1 meter is typical.
The output will then be approximately 95 + 10log(180)dB = 95+22.6 or 117.6 dB at 1 meter.
This is equal to the noise level on the ramp beside a jet engine
In my personal experience I have seen this level of sound pressure actually crack windows!
cheers

Answer 2

The further you are from the speaker, the fewer decibels you will measure. Obviously, sound volume diminishes with distance.

If we assume that your speaker is 100% efficient at converting electrical energy into sound energy (which is not realistic), and you are standing 1 meter from the speaker, which emits sound equally in all directions (also not realistic), then the volume will be...

The surface area of a sphere with a 1-meter radius is
A = 4*pi*r^2
A = 4*pi*(1 m)^2
A = 12.57 m^2

So, the sound intensity 1 meter away would be
S = W/A
S = (180 W) / (12.57 m^2)
S = 14.32 W/m^2

Decibels are a logarithmic scale that compares the loudness of a sound to the loudness of the quietest sound a (typical) human can hear:
dB = 10*log[S / s0]
dB = 10*log[(14.32 W/m^2) / (0.000000000001 W/m^2)]
dB = 10*log[1.432 * 10^13]
dB = 10*13.16
dB = 131.6

So, your speaker would generate about 132 decibels at a distance of 1 meter.

Answer 3

Yea, I agree with Audiovolt, I'd bet on the Kicker all the way. Solobarics were awesome 10 years ago and they still are today.

Answer 4

can u plz post this on http://www.tutorbuddy.org i will answer when u post