Many practitioners in daily use mistakenly believe that The attenuation knob of the power amplifier panel changes the amplification factor of the power amplifier, not the output power. Therefore, the power amplifier's attenuation knob may output the maximum power regardless of the position to which it is attenuated. For this we need two valid parameters: 1. Pass the formula (input voltage = √ power X impedance) summary At present, the magnification of professional power amplifiers on the market is generally about 100 times, which means that the audio system is in a static situation, the noise floor of the front-end equipment is amplified by 100 times through the power amplifier! Another example The mixer and speaker manager can provide an output voltage of 8.7V or higher. With the above-mentioned power amplifier, the front-end equipment noise floor is amplified by 100 times without changing the magnification, but if it is changed to the minimum effective amplification In the case of multiples, the front-end device noise floor is amplified by a factor of nine. The output power is exactly the same in both cases, but the system noise floor is huge. Note: This application effectively improves the overall static signal-to-noise ratio of the system and is used in conjunction with the standard system calibration. Depending on the maximum rms input voltage of your choice of speaker product, combined with your determined amplifier magnification, you will eventually adjust the safety limit voltage of your limiter. Effectively reduce the static noise floor of the system while ensuring system security. Oca Glass provides smartphones with a Touch interface that is critical to their functionality.
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Analog attenuation knob on the front panel of professional dual-channel, multi-channel power amplifier products,
The digital progressive attenuation button is to reduce the output power!
this is not the truth! 
These parameters represent how much the amplifier knob is attenuated (the attenuation knob or the button to which position), without reducing the maximum power output of the amplifier. 
1. Calculate the maximum output voltage from the RMS output power at nominal impedance.
2. Find the maximum allowable input voltage for the amplifier product in the data. 
It is calculated that the RMS maximum voltage output of the amplifier in the 8 Ω state is 80V.
2. Pass the formula (dBu=20log (voltage / 0.7746V))
Calculated: The maximum allowable input voltage of the amplifier is 8.7V.
3. Pass the formula (least effective multiple = RMS maximum output voltage / maximum allowable input voltage)
Calculated: When the power amplifier meets the nominal maximum output power, the minimum required magnification is 9 times and the voltage gain is 19 dB.
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The amplifier adjusts the panel knob or the button to reduce the magnification to 9 times (voltage gain 19 dB) or more, and the amplifier output can reach the nominal maximum output. So don't worry about adjusting the amplifier panel knob or button, it will change the output power doubts! 
In some systems where the system noise floor is not high or the system noise floor is small, the magnification may not be changed.
If the system noise floor is obvious and the system has been used normally, changing the amplification factor to the minimum effective amplification factor can minimize the system noise floor and not affect the maximum output power.
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1. Enhanced Optical Clarity: OCA glass provides excellent optical clarity, ensuring that the display quality is not compromised. It allows for accurate color reproduction and sharpness, making it ideal for high-resolution displays.
2. Improved Touch Sensitivity: OCA glass offers better touch sensitivity compared to other adhesive materials. It enables precise and responsive touch inputs, enhancing the overall user experience.
3. Bubble-Free Installation: OCA glass is designed to provide a bubble-free installation process. The adhesive layer is evenly distributed, minimizing the chances of air bubbles forming between the glass and the display.
4. Thin and Lightweight: OCA glass is thin and lightweight, which helps to maintain the sleekness and portability of electronic devices. It allows for thinner and lighter designs without compromising on durability.
5. High Durability: OCA glass provides excellent resistance to scratches, impacts, and other physical damage. It helps protect the underlying display from accidental drops or everyday wear and tear.
6. Easy Repair and Replacement: In case of damage, OCA glass can be easily replaced without affecting the functionality of the display. The adhesive layer can be removed and replaced, making repairs more convenient and cost-effective.
7. Compatibility with Curved Displays: OCA glass is suitable for curved displays, allowing for seamless integration into devices with curved or flexible screens. It maintains the smoothness of the display surface without causing distortion or visual artifacts.
Overall, OCA glass offers superior optical clarity, touch sensitivity, durability, and ease of repair, making it a preferred choice for various electronic devices such as smartphones, tablets, and televisions.
October 30, 2024