TIANCOOLKEI passive front audio volume control YL-RH27-50K /100k potentiometer equal loudest volume preamplifier
Description
Audio front passive equal loudness volume controller
Product Introduction:
1. Front volume control YL-RH27-50K passive equal loudness volume controller.
2. Our passive sound circuit is straight through, so it will not have a little impact on the original sound, the circuit is CR traditional audio correction processing high, medium and low frequency, the circuit is no volume attenuation.
3. Passive sound circuit is to process and correct the audio frequency, mainly to improve the sound quality effect, improve the sound quality balance, full and delicate, clear and natural, low frequency strong and robust, high, middle and low frequency band overall improvement.
What is equal loudness
1. The relationship between the actual loudness of sound and the actual loudness of human ear is not completely linear. At low volume, human ear will have physiological attenuation of middle and high frequency hearing, and the smaller the volume, the more obvious this attenuation. The function of the equal loudness control is to increase the volume of the high frequency and low frequency components at low volume, so that the loudness ratio of the low, medium and high parts remains the same as the loudness ratio at high volume. Equal loudness control is to meet this requirement, and equal loudness control is generally 8dB or 10dB. In order to maintain the equal loudness effect of human ear hearing at a small volume relative to that of high and low frequency band hearing at a large volume, some pre-amplifiers are inserted with the equal loudness effect circuit, the principle is to appropriately increase the amplification ratio of the middle and high frequency band at a small volume to achieve the consistency of human ear hearing.
Parameters:
Name: Passive equal loudness volume controller
Potentiometer: Using a resistance stepping potentiometer,
Product model: YL-RH27
Product resistance: 50K or 100K
Product size: 118mm*55mm*145mm
package includes:
Passive front Audio volume controller 1pcs
