【 Weak current College 】 amplifiers connected speaker power and impedance-Power By 【 China power house network 】

First of all, impedance, now home speaker system is basically a low-impedance design, generally in 4 European ~ 8 Europe. And home hi-fi transistor power amplifier design, the vast majority of output is fixed-output impedance of the load is not too big, generally not less than 4 euro, there is no security problems.

If a power amplifier annotation (8 euro, 60W/ch), simply indicate load impedance 8 euro, per-channel maximum output power of 60W, is not to say that we must connect the speaker impedance 8 euro. If your speaker impedance in 4 European ~ 8 Europe, could not consider the impedance matching issues. Now, there's a junkie in General: If there is a power amplifier (8 euro, 60W/ch) of output power, then, when connected to a 4-speaker, 120W/can ch output power.

Here's the way, this is not entirely correct. For power amplifier, the load impedance of the lower, you can enable power amplifier maximum output power increased, but not necessarily in a linear relationship, it is affected by the power amplifier power supply and no level power tube performance limitations. Specific to each machine that you want to read the directions. More about power, General, home speakers will indicate its maximum power toleration. If you bought the maximum sound power toleration is 100W, but it doesn't mean you have to buy a 100W output power of the power amplifier. Because, in high definition, requirements for the power amplifier is 10 times more reserve power. Power amplifier reserve power, small-volume listening, sound quality will be better, therefore, most people tend to buy some power larger power amplifier to push bear power less some of the speakers.

As one of the enduring power 100W speaker system, you can buy a maximum output power 150W power amplifier to push. In this way will not be easily burned speaker? does. Usually a pair of genuine of the speaker, in an instant you can withstand ten times its maximum power toleration without damage. Moreover, most people would not have the volume up so much. A sensitivity to 89db speaker, usually the average person only the power amplifier up to 5W ~ 10W, feel sufficient volume. Finally, to remind readers that the power amplifier power standard method, typically Western machine according to the International Electrotechnical Commission (IEC) standard mark, Japan's machine as the national standard of Japan (EIAJ). The same power, according to Japan's standards will be about one-third higher.