Krown CBT-8AR 8 Inch Basstube With Inbuilt Amplifier 3800W PMPO Subwoofer (8 Inch Round) Krown CBT-08A sports a compact design along with single sided connections that provide multiple options for mounting and maximise your audio output at the same time. This Krown powerful Bass Tube with Built-in amplifier is easy to install. It is best suited for small segment cars, CNG or LPG installed cars or auto rickshaws. Design Krown CBT-08A is an amplified bass tube that is black in colour. It boasts of an attractive cylindrical design with a carpet cover. This makes the amplifier look quite appealing and it will complement the interior of almost any car. This 20.5 cm subwoofer tube comes with a cone that is made of high-grade material. Weighing 8 kg, it has a diameter of 24.5 cm. Furthermore, it also comes with a voice coil cooling system and a heavy duty rubber suspension. Audio Support This amplifier has a high power rating of 3600 W. The amplifier has a frequency response range of 30 Hz to 1.2 kHz. It operates at 12V DC. Its nominal impedance is 4.0 at 15 per cent ohm and its signal to noise ratio is less than or equal to 78. It has an air vented design that helps produce a deep bass effect. The powerful Strontium-ferrite magnet produces high level output. It works on the MOSFET power supply.