【 Weak current College 】 evaluation using headphones hi-fi sound-Power By 【 China power house network 】

On the General enthusiasts who want to undertake an evaluation of the sound system or break while a lot of difficulty, but there are always some rules to follow, here are some of my experiences.

We can use headphones to block evaluation CD machine and power amplifier. The reason is that using the headset, you can avoid a nasty room interference factors; second, on the subtle signals have the ability to stop the restore timelessly chic; third, with high fidelity.

First check the CD. If you use the headphones out of sound perception is wrong, then the CD player and disc may be the "suspects". But in general we are looking for a test drive should have no difficulty, therefore, take a test drive to test the CD, is a common practice. Instead of taking a test CD CD player tablets.

Look for the record, you can choose from a variety of media comments put together with some common understanding, acceptance, higher, high fidelity, detail-rich records identified as tentative yindie. Of course, try yindie should contain more than one type. For example, there are a variety of voices of strings and piano pieces used to test frequency response, symphonies can detect orientation, percussion and electric bass you can test the strength and speed are the bass. Bearing in mind that you should use electroacoustic music as on yindie because most people are familiar with the low level, it is difficult to establish reference standards.

Have a test drive, you can use the headset test CD sound characteristics as well as the degree of fidelity.

An audition, should be very careful to hear sound effects and prior knowledge to record comments content differences between the degree of contrast. If the difference is large, you can initially found the fidelity of the CD is not high. On the other hand the difference is very small, it means that high fidelity.

Determine a CD player, the next step is to check power amplifier.

Due to the amplifier's power output is very big, and headphones to withstand power is very small, so having a resistive attenuator. Conditional friends can make for yourself.

Adjust the volume size, the headset volume is acceptable.

Because the CD is already checked out, which indicates that the CD system "size" has been measured, its sound quality feature has also been very uncertain, simply power amplifier evaluation of sound effects and previous CD system sound contrast. Evaluation of large differences remain:, fidelity low fidelity; on the contrary, the better. If you are going to prepare high-fidelity system, then use the above approach is practical and convenient. At this point, the systems are also considered most complete.

For certain electronic basis or ability of shaoyou, also can do a simple switch, the output of the CD and the amplifier switches between the output of a trial, this can be a more direct comparison of sound effects and fast.

Of course, use headphones to test power amplifier, you can only evaluate sound fidelity and amplifier and speaker power exists between the adapted factors, also require additional consideration.

The last is the choice of speakers. Of course this headphones's mission was completed.

Speaker is easily showing personality parts, different timbre and similar small. Normally, the speaker should choose fidelity high grade, but prices are expensive.

In fact, different shaoyou will have different preferences or focus on the surface. Therefore, the speaker selection is not possible to reach the "exhaustive". As for the speaker's features, you can get information from a variety of media, select substantially complies with the model number of your own taste. Selected, you must also determine the CD with your own machine and power amplifier try to match your speakers, listen to how a specific sound.
Some shaoyou have a set of sound, but didn't feel satisfied, and don't know what the problem is, so may wish to also use headphones to do testing.

For example, first try yindie confirm CD comes out the audio, if not right on the Exchange CD. If you are satisfied with just remember its sound effects features, then go to the amplifier's sound. If the sound difference than the CD, the power amplifier. If the differences are not large, it obviously is the speaker sessions or room acoustic treatment. However, since the speakers will bring a certain personality, not necessarily blame speaker. But if the speaker's own fidelity are high, so is the amplifier and speaker of the power imbalance caused by matching, usually for a power amplifier.