Chinese onboard preamp for bass guitar

If you are checking this video, please, listen it in headphones for a better sound. Sorry for the quality of video, I used my cellphone for recording. Bass was recorded running through DI-box into E-MU 0202 sound card without any additional FX. Installing chinese cheap on-board bass preamp(/3-band EQ). Audio samples. Ibanez GSR180 refinish. Wax coated and installed MM-style pickup. Cheap improvement for a cheap bass. It cost me about 5$ or less for that preamp. Music by Disbalanced Reflection.