User Manual of Product 1:
Pyramid 1000W Dual Bandpass Speaker System - Car Audio
Subwoofer w/ Neon Accent Lighting, Plexi-Glass Front Window,
4 Tuned Ports, Silver Polypropylene Cone & Rubber Edge
Suspension - Pyramid BNPS102
User Manual of Product 2:
Pyramid 2 Channel Car Stereo Amplifier - 1000W Dual Channel
Bridgeable High Power MOSFET Audio Sound Auto Small
Speaker Amp Box w/ Crossover, Variable Gain Control, RCA
IN/OUT, LED Indicators PB717X