PH-2702 Potentiometer Equal Loudness Volume Adjustable Audio Amplifier Board

Description

Equal Loudness Volume Adjustment Board PH-2702 Potentiometer
Description:
Stepping potentiometer,
Model: RH2702•
Resistance: A100K X 2
Size: 38*38MM, height 27.5MM
What is "equal loudness"?
The actual loudness of the sound and the actual loudness of the human ear are not completely linear. When the volume is low, the human ear will have a physiological attenuation of the middle and high frequency hearing. The lower the volume, the more obvious this attenuation. The function of equal loudness control is to increase the volume of high-frequency and low-frequency components at low volume, so that the loudness ratio of low, medium, and high parts is kept the same as the loudness ratio at high volume. Equal loudness control meets this requirement, and equal loudness control is generally 8dB or 10dB. In order to maintain the equal loudness effect of the high and low frequency bands when the human hearing is relatively large at low volume, some pre-amplifiers have inserted equal loudness effect circuits. The principle is to appropriately increase the amplification ratio of the middle and high frequency bands at low volume to achieve human Consistency of ear and hearing.
Package:
1pc
PH-2702 Potentiometer
Shippment:
1.Every parcel will be registered with tracking number.
2.International shipping requires complicated shipping procedures (such as both countries customs, transit stations etc.), also will be affected by many factors, such as holidays, weather conditions et. If the transportation time is not normal, please contact us.