No sound difference, many people build with many different materials. MDF is mostly used just because its incredibly easy to work with and paints really well. Im sure some others can chime in on the best wood types.
There were a lot of comments about the wood being used affecting the timbre of the speaker based on the density of the wood, etc etc...the problem with that reasoning is the enclosure shouldn't make any sound in the first place.My points #1 and #2 would have implications towards the sound quality.
Edit: here's a link that goes into some of the issues.
Thanks for all the feedback. I couldn't help but chuckle; all the feedback was with regard to the woodworking properties of MDF, no surprises there. I was hoping there was no audible rational for going with MDF because I want to make furniture quality speakers from wood. As a DYI'er the cost savings is not a big deal and solid oak is quite substantial. So, wood it will be. Now the quest for designs; I'm starting with the surrounds for a 7.1 system, any suggestions?
Thus when you DIY you can add a lot of internal window braces. No more than 6" span without an internal brace. The resulting resonance of the sidewalls is raised in frequency to the point that they do not get activated. Going to this type of extreme is rarely done for a commercial product -- but DIYers can obsess. :hyper: :sweat:Plywood will vibrate more than MDF and allow more midrange energy to bleed out of the cabinet through the walls, which is bad for the sound of the speakers. Hence the suggestion to use more bracing and dampening materials.
Not going to argue with anyone else out there, this is just somethign I came across..
I guess I'm just playing Devil's Advocate. :devil:
This is still going to leave the resonant points within the passband unless you are talking about only a woofer cabinet section. A 6" span matrix brace on all axises on 3/4" MDF would place the first resonant panel mode in the 400-550 Hz range, I expect. The typical window braced enclosure with braces every 8-10" typically has it's first resonant panel vibration roughly in the 180-300Hz range.Thus when you DIY you can add a lot of internal window braces. No more than 6" span without an internal brace. The resulting resonance of the sidewalls is raised in frequency to the point that they do not get activated. Going to this type of extreme is rarely done for a commercial product -- but DIYers can obsess. :hyper: :sweat: