This project helps you build a compact, portable speaker system with enhanced bass sound. It amplifies audio signals to drive a woofer and a 5W speaker, giving you good sound quality and bass performance.
Key Components Required
- IC CD4440
- 3.55mm jack
- 47µF-(2), 220µF-(1), 1000µF-(3), 100µF-(2) & 0.1µF-(2)
- Battery-12v-1
- Zero PCB-1
- Connecting wires
- Woofer 10W & 5W speaker
Circuit Diagram

How It Works
- Your audio source sends sound signals through the 3.5mm jack.
- The CD4440 IC amplifies these signals and especially boosts the bass frequencies.
- The capacitors help filter and stabilize the signals, so the sound from the speakers is clear and rich.
- The 10W woofer produces deep bass sounds, while the 5W speaker handles the other audio ranges.
- The battery powers the amplifier and speakers, making the system portable.
- You get a speaker that’s easy to carry and delivers good sound with strong bass.
Watch the full video tutorial here: How to make a Portable Speaker with Bass DIY at home | CD4440 #Audioamplifier

