Nuub Help. Dont Flame.

i have never actually used my dmm to set all settings on my amps. i have always been a "by the ear" kind of guy. well my old dmm took a **** on me. so i bought a new one yesterday. can anyone explain to me how to use this formula and what-not.

i'm going to be running the audiopipe ap-3002 i picked up. and i will be running it bridged @ 4 ohms.

Can anyone explain how to use the forumla so i can tune my amp? lol

AP-3002

Frequency Response

20Hz – 20kHz

Signal to noise ratio

110dB

Channel separation

>75dB

Total harmonic distortion

Speaker impedance

2 ohm to 4 ohm

Input sensitivity

0.25V – 8V

Crossover frequency

55Hz – 5.5Khz 12dB stereo

Bass boost

0 – 18dB @ 45Hz

Output power (RMS)

Stereo 2 CH – 160W x 2 @ 4 ohms

Stereo 2 CH – 320W x 2 @ 2 ohms

Bridged 1 CH – 640W x 1 @ 4 ohms

P = Power in watts

I = Current in amperes

R = Resistance in ohms (effectively the nominal impedance)

V = Potential in volts (Voltage)

Knowns:

Resistance (nominal impedance of your speakers)

Power (desired wattage)

Unknowns:

Voltage (we'll measure this)

Current

Formulas:

P = I*V (formula for power)

V = I*R (Ohm's law)

So after a little substitution to get Voltage in terms of simply power and resistance we get

V = square_root(P*R)