From the description:
"For electronics,the SR400 bass features the DX series passive bass pickups with the Ibanez EQB3 3 band EQ.
ELECTRONICS
POTS 1B,1V,3EQ
P.C.B. EQB-3
KNOB: BLACK DOME
OUTPUT JACK: SIDE
BATTERY: 9V
CONTROL FUNCTION: 1V,1BL,TRB,BAS,MID "
How much advantage is "active...