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Amplifiers Voltage

In the usual sales work, often encounter such a problem: the first, if the host is 45W * 4 output power, coupled with the rated power is 60W speakers, so the host is not dragged or easy to burn car speaker?

First of all: the power amplifier (host), the rated power generally refers to the continuous output of the RMS (RMS) power; for the speaker, the rated power known as the speaker can bear this value for a long time

Power does not damage, it does not mean that the need for such a high power amplifier was pushed, but not necessarily to the amplifier (host) "to obtain" such a large power.

The driving of the car horn is mainly determined by its sensitivity and impedance characteristics. Nor does it mean that the amplifier can not be equipped with a power greater than the rated power of the speaker. Just as driving a car, driving a 300 km speed car does not mean that will be

A car accident, you can not open so fast. Similarly, as long as the volume is not blindly increased, high power amplifier can be equipped with low-power car speakers. General host rated load of 4 ohms, as long as the car horn impedance is not less than 4 ohms

M, the host volume knob does not open to very large, even if your horn power is 1 kW will not burn the host.

The second, in addition to considering the car horn and host matching degree, the power amplifier needs much?

 General single amplifier are better, marked are authentic RMS power, that is, the maximum distortion is not true sine wave power, referred to as the root mean square power. This power indicates that the power amplifier distortion does not exceed the target value, the long-term output

Such a big power. Looks less power amplifier, such as 2 × 50W, 2 × 60W, working up with a mold like. The power requirements discussed below refer to RMS power, and it is important to see "RMS" or "the maximum

True power of the other signs (such as music peak power, maximum power) power is actually divided by 2 or divided by 10,20 to be equal to RMS.For power amplifier, the rated power generally refers to the continuous output of the effective value

(RMS) power; for speakers, the rated power is known as the speaker can withstand this value for a long time without damage to the power, which does not mean that the need for such a high power amplifier was pushed, the car speaker drive easy By its sensitivity and impedance characteristics to decide.

Audio equipment and home audio, but also use the power amplifier. Just touch the sound of the people, also installed in the power amplifier, and even install multiple power amplifiers, that is incredible. (P) = voltage (U) x current (I), if only the host's own power amplifier, up to 4x55W, can only promote the power of small (if the power supply voltage is only 14.4V, power (P) = voltage (U) x current (I) Loudspeakers, and the volume is big and will be distorted, the sound sounds stiff and inelastic. Ear hearing has the limit, the lower limit than the volume can be heard even less, which is why the music is always at the beginning of feeling more intense. It is quite difficult to get any sound to the most realistic state: the noise emitted by the windshield, the interior, the engine, and the car chassis and the tires on the road surface have a great impact on the listening environment; Level and post-level power is also a big flaw, can not replay the music of all the information. To solve these problems need to install power amplifier. Automotive power amplifier internal use of inverter power supply, the power supply voltage increased to ± 40V, power also will be improved, so you can use high-power speakers, due to increased storage power, improve the volume will not produce distortion, sound quality Strong and flexible. Especially in the promotion of large-size subwoofer, the bass area is more extended, the sound is very full.