Now, whether the music enthusiast or an ordinary user, the Monster Headphone has a lot of people enjoy the music an essential tool, not only because the Monster Headphones small and will not interfere with other, more important is that the Monster Headphone can provide better performance and more to restore the music telepresence. And in today's digital music players continue to come out today, whether portable CD, MD Walkman and Recently a very popular MP3 player, in order to get better sound quality, in addition to audio playback machine, the most important is that with Monster Headphones to match the machine. 1. Monster Headphone category There are many classification Monster Headphone, which is based on the more common form and function into the Monster Headphone, earbud and ear hanging type: Monster Headphone comes with a soft tone commonly used to wrap your ears cushion, so that the ear and the Monster Headphone into a closed structure, so the expression of music very well, and the Monster Headphone can be made very strong, and strong anti-beat . However, the disadvantage of the Monster Headphone larger, carry convenient. Therefore more suitable for home or office at fixed locations such as Earbud Monster Headphones is the pronunciation part of the direct stuffed ears, this Monster Headphone is the most important feature of small size, easy to carry, is the main variety of portable Walkman type Monster Headphones, but also has good sound quality, sound, the advantages of highly interactive. But the disadvantage is vulnerable to outside sound interference Monster Headphone is the advantage of integrated earbud Monster Headphones and a Monster Headphone, not only has the structure of closed Monster Headphones, the advantages of strong performance, but also with small Monster Headphones, portable strengths, and stylish , very popular with young people In addition, according to sub-manufacturing principles can be divided into electric, and dual frequency capacitive Monster Headphones: Dynamic Electric, also known as Monster Headphones, has a simple structure, sound quality and stability to withstand high power and high sensitivity characteristics. Also known as electrostatic capacitance Monster Headphone with good sound quality, the advantages of frequency bandwidth, but the structure is very complex, rarely seen on the market condenser Monster Headphone. Dual frequency Monster Headphones are integrated electric and capacitive advantages, in terms of dynamic range, transient response, the playback quality, tone, etc., are very superior thickness, and it sounds accurate analysis, music enthusiasts the best choice. 2. Monster Headphone Specifications We look at the technical specifications for a Monster Headphone, can often see the following description: Impedance 16 Ohm Frequency response 18-20000 Hz Sensitivity 108 Less than 1% total harmonic distortion 117 db sound pressure level (SPL) These Monster Headphones are the technical specifications of the data, the following description of these technical indicators are the author's meaning. Impedance Monster Headphone impedance is referred to as AC impedance Monster Headphones, different impedance Monster Headphones mainly for different occasions, the desktop or amplifier, VCD, DVD, TV and other machines, often using high-impedance Monster Headphones, and even some professional Monster Headphone impedance will 200 ohm, which is professional in order and match the Monster Headphone jack on the machine. For a variety of portable players, such as CD, MD and MP3, generally using low impedance Monster Headphones, these low-impedance Monster Headphones tend to be more easy to drive. Frequency Range Frequency range, the Monster Headphone is able to run the width of the band, the International Electrotechnical Commission Standard IEC581-10 high-fidelity Monster Headphone frequency response can not be less than 50Hz to 12500Hz, up to the width of excellent frequency response of Monster Headphones 5Hz-40000Hz, the people only hearing ear range of 20Hz-20000Hz. It is noteworthy that the width of a standard definition of frequency response is different, for example, below the average output rate of 1 / 2 standard or less than 1 / 4 standard, which is obviously not the same. Manufacturers of general output amplitude is reduced by 1 / 2 the width of the standard measure frequency response, which means that the-3dB as the standard, but because of different standards used in testing, some product is-10dB as the standard measurement. This is actually equal to the lower than normal 1 / 16, measured under the standard. Therefore, wide frequency response is wide exhibition. Users of different brands to look out the width of the frequency response of Monster Headphones may have different testing standards. Sensitivity The sensitivity of the Monster Headphone means the case in the same loudness, the power source to enter the size, meaning that the user will sound the same in the case, the higher the sensitivity of the Monster Headphone, the power source of the need to enter the less.This music players and other portable devices, the higher the sensitivity, the more easily drive Monster Headphones. Harmonic distortion Harmonic distortion is a waveform distortion, the Monster Headphone indicators are marked, the smaller the distortion, the better sound quality. SPL Sound pressure level is used to reflect the sound intensity or volume, mainly used to indicate the strength of sound energy, in units of decibels. The human ear can hear in the 0-140 dB SPL, usually ,130-120 jumbo jet near dB; 110 dB for the thunder; 100 fragments were symphony climax; 90 dB for the bustling street traffic noise; 80 dB for the loud music, and symphonic pieces of general traffic noise; 70 dB normal conversation was a meter; 60 dB for the typical office sounds; 50 dB for the average residential; 40 dB for the library and the symphony low fragment ; 30-20 dB for the language lab quiet whisper of voices and 1.5 meters; 10 dB for the anechoic chamber. 3. How to buy Monster Headphones Optional Monster Headphone, of course pay attention to technical indicators, technical indicators, but the higher the price, the more expensive, so buy the Monster Headphone when the purchase should note the following tips: According to the Monster Headphone types to choose Monster Headphones are just different for some cases, if you are using a variety of portable music players, or should choose earbud Monster Headphone, mainly for portability considerations.Also we should note that the Monster Headphone with resistance and sensitivity in a variety of portable players, such as CD, MD and MP3, generally using low impedance Monster Headphones, mainly Walkman low input power of the voice, the use of more easily available low-impedance Monster Headphones good results, and if the computer sound card to use low-impedance Monster Headphones to Monster Headphone is likely to burn. Reasonable view of technical parameters Optional Monster Headphone, the Monster Headphone's performance specifications to pay attention to it because a number of small factories producing the defective Monster Headphone casually fill performance index, the junk hype. High quality brand-name products The current international famous brands Monster Headphones Monster, Germany, Japan, Iron Triangle, the United States KOSS and Japan's Sony, etc., these products are not only excellent product quality, variety, more importantly, the user can bring more music to enjoy, but the price is a little expensive.