MONDAY 30 JANUARY, 2012 |

The source of the noise headset monster beats importers system j

A, this bottom noise amplifier shall be measured how? Used monster beats importers digital multimeter friends all know, if the table dial millivolt to block, pens and hung up when anything not answering the multiplier and jumping about figures have been started. Numbers spool little criterion 3, 5 millivolt, many tens mv. Is this the precision of the multimeter so low that the magnitude of millivolt not measuring parameters? Not as well. As long as the two pens and docking with the multiplier and stable soon back to zero. So just Numbers spool come in? Because there are scattered around space of stray electromagnetic interference signals, and the multimeter resistance is bigger, can very sensitive to jamming signal to accept to reason. Once the pens and docking, the interference of electromagnetic signal is through the pens and short sub off, then a multimeter is shown in stable back to zero digital, to show that it can measure of minimum signal range is. On the other hand amplifier, if you empty the volume and pick up input terminals the largest open, then hear noise, and just as the truth of the multimeter, has quite a lot of electromagnetic interferences noise. That you find a unplugged the signal of the plug, and put the plug in the two ends into short circuit, then hear what??? May what also can't hear or very small noise. This is the bottom of the amplifier noise. So, you might ask, turn the volume down to the smallest not can also shut? Is that sometimes may be so of, for example, the volume in the front of the circuit potentiometer. But, also some circuit is not in the front volume potentiometer, its front perhaps other circuit components or wiring, you put it off to a minimum, reflect the noise is just after the noise of the circuit potentiometer. So, the correct measuring method should be input short sub, the volume of maximum noise is the bottom of the amplifier noise.

Second, maybe you will ask again, that can input impedance of the amplifier to zero, like just the multimeter, pens and docking, no signal? Is! But you want to had not, front Mosaic of signal don't also have no? So, behind the input impedance of the amplifier or can't have no, little low, receiving space interference is a little noise. So, the volume used 20 k is potentiometer many people practice. And, of course, behind the potentiometer input impedance amplifier circuit was a little or good, this is good to capture the weak signal.

Three, but, why amplifier in again after a CD, even if the volume monster beats importers the largest open, noise is also will be small? Because the CD signal output impedance is very low, on the electromagnetic induction signal stray signals are CD machine internal output a short circuit away. If then you hear noise than input amplifier short-circuited when noise, the big part of it is the noise of the CD.

Four, please note, CD players of the noise is not above all that so simple. Because most of the CD machine, especially import even cheap CD machine, it in a little bit ahead of the signal output terminals, there is a mute circuit, CD players to stop it in the song, when, song song long pause between time memory jump to change, the mute circuit are began to work. When he heard the noise is small, not equal to CD players at the end of this little noise. CD headphone jacks listen to of time also is such headphones. In addition to the above several time, CD machine playback the noises when there are two aspects, one is the CD machine chip class level and circuit design level of noise, this is the bottom of a CD of noise; Another aspect, is the recording of the noise, this is no way to things.

Five, the headset machine high sensitivity, of course can hear more noise. But, the more the noises. How much is the amplifier? According to the foregoing, you can judge for yourself.

Supplement it, is not sure of the device to connect system noise source. Sometimes, monster beats importers the system of each single noise itself is very normal, once the system interconnection, when you have larger noise generation. Usually, this noise is 50 or 100 Hz in the pulse of the composition. The main reason is the potential difference between every location system. The potential difference is sometimes circuit on the locations where the current ripple effects, is sometimes transformer leakage magnetic interference site potential. In this way, different system of ground potential connected, will form a ground loops of current, can produce noise.

Headphone amplifiers and system monster beats kobe bryant editio

A, earphone system speaker system have a lot in common, monster beats kobe bryant edition from the view point of the whole system, take the weakest link to use the smallest input to obtain the biggest improvement.
Many users use audio source class is not high, in this premise, the role of the ear put will be obvious to narrow. The so-called one, in a previous post, I did a lot of emphasis on the importance of the audio source, civil sound card and a walkman and entry-level desktop CD is a big gap.
Sound card and a walkman + ear the collocation of put for whatever reason, I think, is only a temporary transitional measures, not the general effect not audio source in the market at a step.
Say again what kind of headset on ear to put, some people always very general puts forward ears or useless view put useful, in fact different to the requirements of the ear earphones put differ in thousands ways. For the low end of the headphones, most is not to need an amp, use direct walkman, sound card fix, typical such as: PX200, 100, DT231, KOSS35 / PP/SP, SR60/80, K240S K66 AD7 / AD5 and so on, these headphones its quality is limited, while on stage with machine and ear put also to have certain ascend, but little sense.
"The need to ear put" headphones are mostly in high-end, such as K501 / K240M / 240 DF/K1000 / HD600 / HD580 / DT831 / DT931 etc, in order to HD600, for example, is famous for the ear of the high demand put headphones, high frequency is exquisite, extended, and at the front end of the audio source and the ear is put even the CDS problems can be exposed, no doubt, while the low frequency have fat slow shortcomings, must be put through to control the ear, the low frequency administrative levels feeling and elastic plays out, put to do this two ears and is not an easy thing.
Sound card and a walkman and CD machine, power amplifier with the headphone output actually all is a simple ear to put, before both by the limitation of the audio source may not have what good, sound card means civil sound card), CD machine with the headphone output is also a attached function, I heard of ten thousand yuan level products also can't take HD600 push ok, the low frequency problem is most obvious, it doesn't need what golden ears, as long as they do not have the ear mud contrast is can hear out.

Second, people of different sensitive degree of sound, natural to monster beats kobe bryant edition different requirements for equipment, we can't take a few not hearing sensitive person criteria of promotion, part of them quite happy, can use very little cost get satisfaction, we will not discriminate against them, but not in their view for the standard to regard the HIFI equipment, in fact, so many people actually listening experience have told us that the whole system on the importance of ears, this does not need what "golden ear," don't have the experience or currently still listen to not to come out, might as well the slowly training and a chance to listen to better match of the effect, the sensitivity of the listening can be gradually improve.
Again, need not to need the ear to see system, see put headphones, with desktop CD + ear put even listen to MX500 can also listen to out directly with the sound card than push is improved greatly, but we never suggest net friend to such collocation, because the system configuration is not reasonable, also, if you have a high-grade headphones, and unworthy ear to put, it is a waste of the headset resources, no effective play, this system also is not reasonable.

Three, and not a ear put can apply to all headphones, ear put to do 100% no distortion and sound dye is impossible, can only as close as the goal, the more close to pay as much, and headset instinctive quality is not completely flat frequency response is no distortion, this will have a different style of the headphones, but this meet people of different preferences, so in the push under the premise of how to make a full play of his headphones feature and make up for the defect is the ear of an important function of put. For example A250, good push, pick up the sound card is also very ring, but the high frequency more hair, not resistant to listen, I specifically done six of DIY ears A250 test put push (see essence edition), SXT-1 collocation than the other ear put good, much better than the sound card.
Artist some point is correct: a bad ear FangHai do not add, much a pollution, degradation will sound quality. Such as part of the combined sound and power amplifier output headset (calculate built-in ear put), are mostly have the monster beats kobe bryant edition volume didn't sound quality, can only temporarily to meet the requirements of the "ring".

Four, ear put the is in "zoom in" the under the premise of fidelity, otherwise not call headset "amplifier", not the amplifier, many headset is in "do not have enough to eat" under the working conditions of, so will affect the play. And not put to create the ear voice.

The role of the ear put not "improve the sound quality", but let the monster beats kobe bryant edition headphones in full drive performance of its real tone. I said HD600 sound card + is HD600 play into level 4, had a entry-level CD + one thousand yuan level ear to put, could have a 8 to 9 into level, thought of 95%? The price will go up or cartwheel.......

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