justafifteen 10+ year member
And that's the truth.
What do you do for a living, helo? You have the best answers ittWire 20 D cells in series to get 30V. Then swap the polarity on that battery pack 40-200 times a second and tell me that the cone stops moving. A square wave is still AC. An ideal speaker with zero mass and infinite BL with zero inductance might be able to reproduce a square wave as it appears but a real speaker in the real world can't come close. A low voltage, low frequency square wave.........