inputs.text: pretty decent - great package price not looking competition quality would went brutus series hooked old kenwood kac728s 300 watt rms two channel 4 ohm amp would nice cubic dimensions box rms rating subs description researching 400 rms subs 125 cu box standard bass response sounds great use not like bass drown words time four channel amp might use interior speakers jvc kwav70bt tuned lowest setting 50hz works