Build Better DIY Home Theater Speakers and Stereo Speakers


Making a great speaker cabinet you need to control these areas:

      The best DIY home theater speakers designs address…

• Mass
• Bracing
• Internal standing wave
• Speaker driver quality
• Cabinet Panel Resonance control
• Damping
• Baffle Diffraction
• Frequency response control
• Time and phase coherence
• correct Driver spacing
• Driver lobeing



Speaker Cabinet Mass:

Mass is good in a DIY speaker system because weight and volume will create a good mate or connection to the floor. Speaker drivers move back and forth very fast.

This movement can cause slight back and forth rocking motions of the speaker cabinet. Especially when you consider a lightweightspeaker cabinets this rocking motion can affect the performance of the speakers output. This is also a good reason to use well-built DIY speaker stands.

DIY speakers or a custom subwoofer enclosure should be built in this way as well – heavy, with thick panels and lots of bracing.

Speaker Cabinet Bracing:

If cost and weight is not prohibitory; construct your DIY speaker cabinet as such;

Take the width of the cabinet walls and place a brace no further apart than this width.

So if your cabinet wall is 2.25 inches thick, you would have a brace every 2.25 inches inside thespeaker cabinet design.

best DIY home theater speakers

Excessive? Yes, of course!

If you build the DIY speaker box yourself you have no reason not to go all out and be excessive. You’ll be glad you did.

Most speaker builders would consider this to be wretched excess, and they may be right. But it gives you a good idea of how to build a supremely inert cab for your speaker drivers to launch from.

You could relax this math a bit by going to a 2/3 rule or ½ rule. Both would still offer very good results. For every wall thickness measure, add 1/3 thickness to the gap between braces. So a 3 inch thick wall would yield 4 inches between the braces. Or a 3 inch thick wall would have 6 inches between braces.

But I think the ½ rule should be a minimum for a high fidelity loudspeaker cabinet design. The only exclusion to this would be if you used a much more rigid material like aluminum. But then, the cost would be extremely high. And aluminum does not damp as well as MDF and birch ply does either. Also, speaker cabinet hardware is more expensive as well.

Better speakers through DIY, even build DIY computer speakers

Remember, if you are building the cabinet yourself why not make it the best it can possibly be. What are a few more hours of your labor and a couple hundred more on some extra sheets of MDF or birch ply?

This would be extremely inert and non-resonant. By using materials such as birch ply or MDF you will also be adding natural damping to the cabinet as well. Birch ply and MDF both have excellent damping characteristics in their raw form.
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