Speakers and amplifier and speakers matc

In the design, installation and a stereo system, always meet with speakers of power matching problem. In tone, should eventually make the whole equipment reduction, only the sound from a neutral artistic aspects. From the technology, with speakers of power matching elements:

Power match

In order to achieve high fidelity to request, rated power should be based on the best sound listen to determine. We have such experience: volume hours, voice and thin, dynamic won't come out, without burnish, low-frequency significantly lacking, the fullness of the poor, sound like shrinkage inside out, When appropriate, the sound volume of natural, clear, round, soft and plump, powerful, dynamic come out, Loudness, voice soft and hard not coarse, have pierced ears, so heavy level and sound quality is lifted, the provisions of the relationship between listening area is the best level 80-85dB (right), A program can be listening area to speakers from the distance and characteristics of sensitivity to speakers of speakers with rated power amplifier and rated power.

Power reserves match

In order to make the sound signal with the program to the impact of per pulse without damage or distortion, here is a experience is worth reference: the speaker nominal rated power should be calculated by theory of power is three times. Tube amplifiers and crystal amplifier, the power needed reserves is different. Here because of lotus curve tube amplifiers is smooth. Music signals over the top, tube amplifiers generate obvious not only to peel phenomenon, its tips to go round, It is often said that the flexible shear peak. In Hollywood and transistor amplifiers, nonlinear distortion is increasing rapidly, to severe cutting wave signal, it is not to go round, but its it made neat. This transistor amplifier for the reserves are selected for 10 times, hi-fi amplifier, Application of high-grade amplifier for 6-7 times, Application of intermediate amplifier is 3-4 times, While tubes can be much less than the amplifier. For the average system with the loud speaker level should be left many surplus, should inspect the contents and working environment regularly. The minimum redundancy allowance for modern pop 10dB, music, music, etc. To leap di leave 20-25dB redundant allowance.

Impedance matching

It refers to the rated output impedance amplifier with speakers of rated impedance are consistent. This is the best design load and power lines, therefore can not distortion power, if the maximum rated impedance amplifier speakers than the rated output impedance amplifier, the actual output power will be less than nominal output power. If the speaker impedance amplifier is less than the nominal rated output impedance, audio system can work, but the amplifier overload, there is the perfect requirement amplifier over-current protection measures to solve, tube amplifiers speaking impedance to stricter requirements.
Damping coefficient matching (the) most

Damping coefficient KD defined as: KD rated output impedance (= amplifier is rated impedance) / sound power output impedance. Due to the output impedance amplifier, actually has become speaker of the electrical devices, damping determines the speakers and KD value of electricity damping. Greater value, damping KD heavier. Power amplifier and KD value, the value that KD speakers electricity and pulse is overweight, damping, reducing frontier establishment time transient response index. Therefore in selecting amplifier should not be the pursuit of big one-sided KD value. As household hi-fi amplifiers, damping is sensitive one experience for reference, Transistor amplifier KD value is equal to or greater than 40, tube amplifiers KD value is equal to or greater than 6. Ensure the playback steady characteristics and the transient characteristics of good basic condition, should pay attention to the quality of the equivalent mechanical speakers (Qm) and amplifier damping coefficient (KD), it should be made stereo system of speakers feeder integral part of consideration. Speakers of small power loss feeder 0.5 dB (12%) can achieve it.

Generally speaking, the thick line, is best, but the double partials speakers are double points of prescaler, general high-grade has four wiring, fluctuation two anode is independent, not connected together, together is fake.