LM4610 is a U.S. company following the LM1036 NS launch of a new type of high-end HIFI -class tone circuit is LM1036 the ideal alternative , it is also using two -channel DC voltage to adjust volume , treble, bass , balance . The LM1036 IC is also based on the increased broadening of 3D sound field adjustment , loudness , etc. It also comes with a switch to compensate for the small volume curve when the human ear . LM4610 Features: (1 ) Operating voltage : 9 ~ 16V Current : 35mA input impedance 30K, low output impedance of 20 European (2 ) Treble adjustment range : ± 16DB (16KHZ time ) 3 ) bass adjustment range : ± 15DB (40KHZ pm) (4 ) balance adjustment range : 1 ? 20DB ( 5) The volume adjustment range : 75DB (6 ) Signal to Noise Ratio : 80DB (7 ) Frequency response : 250KHZ (8 ) Total harmonic distortion : 0.0003 Circuit : LM4610 typical application circuit shown below , LM4610 in the first 19 feet 5.4V reference voltage output by four 47K potentiometer to adjust the control pin voltage , so between the change in the 0 ? 5.4V , so to On the volume , tone , balance control. 3D sound switch for the switch S1 , S2 , of equal loudness switch . LM4610 and treble tone control capacitor Ct, the bass capacitor Cb . When the treble capacitor Ct = 0.01uF, bass capacitance Cb = 0.39uF pm at 40HZ-60HZ, ± 15dB range to enhance the volume and attenuation .