actualy it is 15volts
LM4610 + NE5532 Preamplifier tone board
Voltage: Dual AC15V-18V:
Circuit board size: 117X68MM (the potentiometer-free)
Potential functions: 3D, bass, treble, balance, volume
The distance between the potentiometer: 25MM
Two switching functions: on the left for the 3D switch, the right loudness switch
● Input impedance 30kω, low output impedance of 20ω;
● The volume adjustment range is 75dB; the balance adjustment ranges from 1 ~~ 20dB;
● bass adjustment (40Hz when) ± 15dB treble adjustment (16kHz) is ± 15dB;
● Total harmonic distortion is only 0.0003;
● SNR up to 80dB;
● Frequency width of 250kHz;
● The maximum signal input, the output voltage of 1.5V;
● Two channel balance error is less than 1.5dB;
● Power common-mode rejection ratio of 60dB. contact me for the datasheet
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The greatest deception men suffer is from their own opinions.
Leonardo DaVinci
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