Measure of earphone speaker can use some method of evaluation, but the headphones and speakers to listen to different sense, sound waves emitted sound attenuation in the air, the occurrence of interference, and interaction between man's head and ears, the sound headphones directly into the beats by dre justbeats solo cheap. The quality of the sound headphones than its technical performance is more important, because the shape of the head and ears are different; a pair of headphones to listen to different people has different sense, it is recommended only as a reference, and have the opportunity to personally listen to. What is a high-fidelity headphone? International Electro technical Commission IEC581-10 file fidelity headphones recommended major performance: Frequency range is not less than 50Hz-12500Hz; typical frequency response of the permissible error of plus or minus 3dB; frequency response curve slope does not exceed the diddy beats cheap; around the 250Hz-800Hz units within the same octave bandwidth difference between the average sound pressure level of not more than 2dB; 100Hz-5000Hz range, sound pressure level of 94dB, the harmonic distortion of less than 1%, 100db at no more than 3 %; headphone frequency response between the 2KHz-5KHz declined to allow to improve the transparency and sense of space. Sound Isolating Headphone
Headphones greatest advantage relative to the speaker in the details, the actual quality of the headphones to listen to a sound should be clear, detailed, no audible distortion; low dive and clear, effective control; the entire band to be smooth and flat, high frequency, however bright or too dark. For any pair of headphones, tri-band are not very perfect, smooth and natural connection between them is the most important. If the wireless / cordless headphones, the background noise to be as small as possible.
You can get much more info and detail at inexpensive headphones for sale at beats by dre justbeats solo cheap Very best and inexpensive headphones for sale for you.