Headset there are three versions of themodel

headset there are three versions of the 741 model<br /><br />If your headphones sound dark muddy , and is driven through the power amplifier , you may consider reducing the effective output resistance. This can also be achieved by means of an adapter , but this is in parallel with a resistor Ra in each channel . Effective output resistance is the resistance and headphone jack shunt resistance R0 * Ra / R0 + Ra. <br /><br />The first question to be answered is , what kind of cable should I use ? Selection criteria and non- removable type of home audio connections are very different . It is important that the flexibility and mechanical noise can not be transferred . Hard line rather annoying, because they will get you moving in the noise generated spread headphones . <br /><br />MDR-EN228/238/268: This is the SONY in GROOVE series of products, including 268 from the series is the top model , the sound quality is the best , high-end headphones with a SONU evaporation coating sapphire diaphragm and oxygen-free copper conductors, powerful bass calm , it is exciting . Alt performance are more rounded, Naiting , the disadvantage is not very good reproduction of detail , but they did not additionally diaphragm filter , it is easy to glue dust, everyone was always clean . But the fundamental, which is regarded as a headset SONY more characteristics of the product.. <br /><br />Bring only AKG, the headphones sound Bi Senhai look more professional that the reduction of the human voice is more clear and bright, the bass is also Bi Senhai listeners generally a little more, the sound is very balanced in each band . Drawback is that noise is not good , DISCO dance DJ If you use this , to ensure not hear anything . Unfortunately, no one is ever pay attention to this station CNN radio reporter have used the small things .. <br /><br />MDR-E805: SONY loom is now commonly used in the model , although not as old wife headset , but it is as long as 50 yuan price, the performance is fairly remarkable it. 805 used plastic shell is very hard, very comfortable to wear , with the sea sets will be better. 805 bass relatively rich, strong and powerful , but the level is not good. <br /><br />Pros: the price is not expensive, loud , low-frequency exaggeration but not fuzzy , suitable large volume of music categories. Cons: shape and Americans , American cars , like huge stupid , sounds a bit too rough. Unfortunately, the sound is characteristic of the Chinese people should be able to make it, but no one did .. <br /><br />Without regard to their economic capacity , the blind pursuit of high-end . A lot of friends also bought HD600, enough to grade it, but is plugged into the computer and the Walkman , can play a few HD600 into strength ? In fact, there are high-end headphones light enough? High-end headphones to be equipped with advanced desktop PC , penthouse , fever LP , will afford a horse saddle with affordable , high starting point , after suffering as a result. So at the beginning of limited economic strength, burn or friends , you can start with entry- headset to start, such as the first buy DT231, K66 headphones to listen to the other , and if not , then skip directly into the high-end mid-range , so the loss is relatively small , you can also appreciate the upgrading of fun..