- Output power: the unit is W, as the method of measurement manufacturers are not the same, so there have been some names of different ways. Such as rated output power, maximum output power, music output power, peak music output power.

- Music power: refers to the output distortion does not exceed the specified value of the condition, the power amplifier on the music signal instantaneous maximum output power.

- Peak Power: refers to the maximum music power that the amplifier can output when the amplifier volume is adjusted to the maximum without distortion.

- Rated Output Power: The average output power when the harmonic distortion is 10%. Also known as the maximum useful power. Generally speaking, the peak power is greater than the music power, the music power is greater than the rated power, and the peak power is generally 5-8 times the rated power.

- Frequency Response: Indicates the frequency range of the power amplifier, and the degree of unevenness in the frequency range. The frequency response curve is generally expressed in decibels (db). The frequency response of the home HI-FI amplifier is generally 20Hz–20KHZ plus or minus 1db. The wider the range, the better. Some of the best power amplifier frequency response has been done 0 – 100KHZ.

- Distortion degree: The ideal power amplifier should be the input signal amplification, unchanged faithful restore out. However, due to various reasons, the signal amplified by the power amplifier often produces different degrees of distortion compared with the input signal, which is distortion. Expressed as a percentage, the smaller the better. The total distortion of HI-FI amplifier is between 0.03% -0.05%. The distortion of power amplifier includes harmonic distortion, intermodulation distortion, cross distortion, clipping distortion, transient distortion, transient intermodulation distortion and so on.

- Signal-to-noise ratio: refers to the level of the signal to noise ratio of power amplifier output, with db, the greater the better. General household HI-FI power amplifier signal to noise ratio in more than 60db.

- Output impedance: The equivalent internal resistance of a loudspeaker, called output impedance

PX Series 2 channels Powerful Amplifier

Application: KTV room,Conference Hall, Banquet Hall,Multifunctional Hall,living show……..

Maintenance of power amplifier：

1. The user should place the amplifier in a dry and ventilated place to avoid working in a humid, high temperature and corrosive environment.

2. The user should place the amplifier in a safe, stable, not easy to drop table or cabinet, so as not to hit or fall on the ground, damage the machine or cause greater man-made disasters, such as fire, electric shock and so on.

3. Users should avoid the serious electromagnetic interference environment, such as fluorescent lamp ballast aging and other radiation electromagnetic interference will cause machine CPU program confusion, resulting in the machine can not work properly.

4. When PCB wiring, note that the power foot and the water can not be too far away, too far can be added 1000 / 470U at its foot.