The ktv modulation teacher necessarily learns knowledge
The ktv is more and more now and eased not a few employment pressures for our many friends and hadn't a few people to strive for a job in ktv now, we in brief saw modulation teacher in ktv knowledge today and hoped to can bring a help for you.
We commence from the definition:
First is what call the acceptance power of sound box?
The acceptance power of the sound box elfevident, mean"importation sound box not exceed this mark power and then can't damage, can can bear".
The ktv modulation teacher necessarily learns knowledge
The ktv is more and more now and eased not a few employment pressures for our many friends and hadn't a few people to strive for a job in ktv now, we in brief saw modulation teacher in ktv knowledge today and hoped to can bring a help for you.
We commence from the definition:
First is what call the acceptance power of sound box?
The acceptance power of the sound box elfevident, mean"importation sound box not exceed this mark power and then can't damage, can can bear".
The acceptance power of sound box has a few kinds to express a method, result in very easily the user's misunderstandingdvb t tuners, the thus not appropriate usage results in the damage of sound box.The parameter of sound box marks medium have plenty of to mark a sum to settle power, is also a long-term power, mean under this power appearance over a long period of time the usage can't damage.The factory examination sum settles power in the constant temperature and uses a pink Zao voice under 20 ℃ conditions the signal work for 48 hours in a row for quasi-.Using environment in the KTV compartment is worse, in music again include the Feng of a lot of big dynamic states value signal, suggest importation power is lower than a sum settle power above 20% use a sound box, will be a lot of safe.Some sound box parameters mark of is a Feng value power, this value is a sum to settle 3-4 times that of power, for example the power of the BMB card MKIIs CS-450s mark to is a Feng value power 450 Ws.The sound box has condition restriction to the acceptance of Feng value power, the time enactment is a second, again and again also can 10 times, if exceed for the possible damage, to Feng value the power mark of the sound box want to specially and carefully use, the suggestion uses power more than 1| of Feng value power not 4.

Secondly is what is achievement does the sum putting settle exportation power?
Achievement the sum putting settle exportation power to mean:"While doing not lose a true condition of long term output power(general the exportation lose really more than 1% not)", under the this kind appearance achievement put is a safe and dependable work.It is to have prior condition, one is the 220 Vs that requests city to give or get an electric shock the electric voltage as standard, if the city electric wave moves, the achievement then puts of the exportation power will also immediately change;It two is has resistance rules to the load(sound box), for example 2*150 Ws(8 Ωs) of achievement put, may output power under the circumstance of 4 Ω loads will attain a 230 Ws or so.It three factories at achievement put of environment temperature for testing exportation power is 20 ℃ , use in the KTV compartment if spreading heat isn't good, even if certainly work under the power condition in the sum, all probably damage achievement put, it four achievement put of sum settle the power mean not to lose true output power, not that achievement put can output this power, if can be lost by power to really also enlarge exportation(enlarge volume knob), then output's losing true power is very big, far far above sum settle power.For example the achievement with 150 Ws(8 Ωs)'s putting the biggest exportation electric voltage being not doing lose really should be smaller than a 35 Vs(power=electric voltage 2| electric resistances), be lose true, outputting the electric voltage may rise a 40 Vs, then at this time lose true power will attain 402|8=200 Ws.
Still have be at choose an achievement to put with sound box should how match power?

While choosing that the achievement puts and sound box,dvb t receiverswe suggest that achievement's putting a sum to settle power summary is bigger than the sum of sound box settle power, of the same size 20-30% is proper, also have to be equal most at least, can not definitely let achievement put a sum certainly the power is smaller than a sound box sum settle power, form "the pony spaces out a car".

If appear the pony spaces out a car, it will make the whole system bass been loose soft have no dint, dynamic state and music express layer to become bad, if tone knob or enlargement volume knob of user excessive enlargement bass under this circumstance, then will result in achievement put exportation to lose really, namely the expert often speaks of"pare wave", result in direct current exportation.(under the normal circumstance achievement put of exportation wave form is alternate current sine wave,cable supplier lose the direct current that the true future reunion"pare wave" formation looks like)Under the sistuation that have direct current output's achievement's putting has already canned not control a trumpet and necessarily burn undoubtedly.The power that the achievement puts is bigger than a sound box power, controling the exportation that the achievement puts can not lead greatly, so can promise achievement put to have enough"power storage", there is good dynamic state performance, and then can't damage a sound box.

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