2012年9月12日星期三

The Audiophile misunderstanding- homemade audio technology

Comes to speaker efficiency and output power of the amplifier to match the problem, I had to cite one example, up to 92dB of speakers, even need to spend to kilowatts of power amplifier can achieve Liangsheng realm, why not? It relates to the orientation of the speaker and amplifier design. To talk about the design of the speaker will lead to a pair of speakers and high efficiency, but large food no ethics reasons why. The combination of modern speaker, speaker unit is a combination of two or more, and some even used the combination of dozens of flagship unit. Crossover design is more complex, due to the large number of units used, in order to accommodate the characteristics of each unit of work, efficiency and correction unit phase, crossover Shao were using small capacitors, resistors and coils, while these parts will consume a lot of power, although the unit of sensitivity and high efficiency, can push it with very little power.

    
The enthusiasts often a misconception that the amplifier wattage necessarily good force, in fact, the size of the wattage just Amplifier One of the indicators, the most important foot size is the key to see the amount of current it outputs. Have you noticed who only a few kilograms of portable Travel HiFi marked the power in the market there are hundreds of watts it? Would you believe that a only a few large battery amplifier have this capability? Long as you think about it, a few 100 watts of electric rice cookers can cook, you try a few battery can be done? see also blush these manufacturer figures, just some businessmen the Hush head. want. Sufficient current, the amplifier must have a strong power supply, coupled with powerful output stage can only be done when the current is able to cope with the demand of many speaker unit, in order to achieve excellent sound effects, this is the modern flagship upscale Amplifier, only hundreds of watts of output, reason its weight alarming.


    
Talking about here, you may think, I did not have a large wattage strong current after class, it can be used with any speaker in the world, no to disadvantaged?, You are wrong! There are a lot of people have tried high-current amplifier to push some of the high efficiency of the speakers, but the effect but not as fine wattage and fine current amplifier, why not? This involves the design of the speaker unit, especially those designed speaker 7O years ago, and Those horn-Speaker. That era generally factory produced only a few watts to tens of watts amplifier varieties. Have a high sensitivity and efficiency of the speaker unit design, require little current, only a few watts of power amplifier can be pushed to the loud, while many manufacturers still produce such speakers are JBL KLipsh Lowther, Altec, TAD brand.


 These products are under constant improvement, some not only can only characteristics of high efficiency, but also can withstand a lot of power, but some products can only use low-power amplifier pretty sound, such as Lowther products, if you use some slightly high-power (for example, more than 10 watts) amplifier would be completely lost its unique charm and beauty of speakers from Klipsh (Hodges) only suitable for low wattage voice's power amplifier to drive pretty sound, if you use some The strong current and high wattage amplifier to push it sound only seemed stiff and unyielding, the croaking completely lost its tone and temperament.

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