Our BMW Trained Technicians will perform a complimentary multi-point inspection to ensure your vehicle is operating at peak performance and safe driving conditions. The inspection includes but is not limited to the brakes, fluids, hoses, tires, belts, lights, cooling system and exhaust system. Hazardous waste disposal fees and taxes extra when applicable. Valid at Peter Pan BMW only and on BMW passenger and SAV vehicles only. Service coupon not valid with any other offer or special. Must present service coupon at time of purchase or service repair order write-up. Some models not included in special offer. Limit one service coupon per person.
RMS Power Ratings: The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. RMS power is derived from Root Mean Square which is a statistical measurement of the magnitude of a varying quantity and is applied to voltage or current.
The doubling of the factor (twice the factor) means: for the loudness level: +10 dB, for the sound pressure level: +6 dB SPL and for the electric voltage level: +6 dB, for the sound intensity level: +3 dB and for the power (energy) level: +3 dB ... and 10 dB SPL more means, the amplifier needs 10 times more power.PL is the abbreviation for  Sound Pressure Level . The term loudspeaker and amplification is not specifically raised with the previous survey. It's all about sound pressure the most important sound value. There is only one correct answer: Twice the sound pressure is an SPL of +6 dB.