What technical parameters should be paid attention to when buying speakers
Need to pay attention to the following five parameters!
Rated power: The rated power of the speaker can only be determined by 75% of the rated power of the power amplifier in order to ensure the matching of power and the safety of the device.
Rated impedance: The rated impedance of the speaker should not be less than the rated load impedance of the power amplifier. Common rated impedances are 4 ohms, 6 ohms, 8 ohms, 16 ohms, etc. Transistors and integrated circuit amplifiers generally do not need output transformers, and the load impedance is 4-6 ohms, so it is appropriate to choose 8 ohm speakers.
Effective range: Select a loudspeaker with a wide frequency range and a flat sensitivity in the range of 30 decibels. Above 90 decibels can meet the needs of home audio.
Number of crossover channels: A three-way crossover speaker adds one mid-step speaker unit to the second crossover speaker, making the midrange sound more powerful, and the speaker can withstand more power and output more volume.
The caliber of the speaker: the caliber of the woofer is not larger, the better, because the larger the caliber, the easier it deforms when the paper cone vibrates, resulting in split vibration and distortion.
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