DIY Powerful Ultra Bass Amplifier 7 Transistor B688 Simple Circuit 

6:22 Direct DC current through the speaker 9:00 Connecting speaker using the capacitor

İs it mono ?

Connect super treble speakers kaha sa milaga sir online pa ha

Ez csak monó?👌👌👍

Harmful to the speakers since it is supplied with dc voltage

I can't find some parts in this project. Can you write the parts that can be replaced in the parts list? for example, 200uh 10a inductor Can I use 220 uh 6a inductor.. Or what s happen if I use 2.2 stone resistor ?

Al posto dell resistore corazzato un generatore di corrente costante

bộ khuếch đại âm trầm rất tuyệt, cảm ơn bạn nhiều

7000mw

Nice video 👍

How can I convert to stereo this project?