Can you boast of making things with your own hands? Below you will find several instructions which will guide you through the construction process of a subwoofer and a telescope.
Sure, buying a subwoofer is a simple thing. But don't you think that making it at home is much more interesting? First saw an old bookcase.
Make an aperture.
Install the driver units.
This is the final variant.
Don't forget to use supports so that the appliance could be evenly held.