Design (On paper) an Audio Amplifier. The main Idea is Sub Woofer. For Designing, you have to use MOSFET (mention the reason why you used EMOSFET or DMOSFET). You have to use voltage divider biasing. (what is the advantage of this technique)

Its specifications should be:

1.Low cutoff frequency = 20Hz and High cutoff frequency = 100Hz (calculate capacitors values)

2. Voltage Gain = 1V

3. VDD = 12V

4. Power Dissipation should be less than or equal to 10 watts (including a transistor and network).

5. Input impedance should be between 5k and 10k ohms, while the output impedance should be between 4 ohms and 8 ohms.