4 CHANNEL STEREO AMPLIFIER. CAR AUDIO EQUIPMENT. WITH ALUMINIUM HEATSINK BOTTOM PLATE AND ENDPLATES.MICROPROCESOR CONTROLLED SINGLE PROCESSOR INSIDE AMPLIFIER CONTROLS PROTECTION CIRCUITRY.GH POWER SUPPLY.ALUMINIUM HEAT SINK WITH INTERNAL CONVECTION COOLING TECHNOLOGY. SIGNAL TO NOISE RATIO UP TO 111DB. TWO LAYER PCB WITH 2 OZ COPPER WEIGHT ON TOP AND BOTTOM. FULL STABILITY UP TO 18 VOLTS DC. 4 X 90 WATTS RMS @ 4 OHMS. 1000W MAX POWER ,ON BOARD BUTTERWORTH ACTIVE CROSSOVERS WITH HIGH PASS, LOW PASS AND FULL SETTINGS. CROSSOVER RANGE 55 HZ - 590 HZ. 0-15 DB BASS BOOST - 45 HZ. FREQUENCY RESPONSE: 3DB, 1 HZ - 69 KHZ.50MM (H) X 295MM(W) X 135MM(D),

CLASSIFICATION IS DETERMINED ACCORDING TO GIRS 1 AND 6. CN 85184089 FOR OTHER AUDIO FREQUENCY ELECTRIC AMPLIFIER. TARIC 8518408990 OTHER THAN FOR USE IN CIVIL AIRCRAFT.HSENS TO 8518 REFERS