NEC UPC2581V 8-bit digital signal processor (DSP)
UPC2581V is an integrated circuit manufactured by NEC that is an 8-bit digital signal processor (DSP). It is a low-frequency class A or B amplifier that is well suited for audio amplification and can provide up to 75 watts of output power. It is a 2-channel audio power amplifier with an operating voltage of 48V to 55V and a 100-150W driver IC.