I hope you don't get a hernia when it's time to lift them! 

 

I used strong backing ply and added screws from the back into the ends for strength/rigidity - there was little/none difference between these and heavily painted styrene units and the Arqen Acoustic "leanfusers" were easier again.

9 minutes ago, HdB said:

I hope you don't get a hernia when it's time to lift them! 

 

I used strong backing ply and added screws from the back into the ends for strength/rigidity - there was little/none difference between these and heavily painted styrene units and the Arqen Acoustic "leanfusers" were easier again.

I have a tractor to move them into the lounge, just like I did with my speakers.  The lounge has double doors to the side making it easy, then just slide on some furniture sliders, easy.

 

I was thinking about bracing the back with some 20mm SHS steel if needed, will see as I build them.  They're big at 115cm x 84cm skyline area.  I think the hardwood will look a lot better than styrene and those units are expensive.  I have the time, may as well make them.  My longest element is 420mm, so much longer than you can typically buy, it's good for 400Hz to 5000Hz as a result.

Just thought I'd post an update of the first diffuser.  I still need to insert the absorption material in the bottom and cover with fabric, the base will be absorption.  The second diffuser is nearly complete and will be in place by the weekend.

 

Nice work @DVDHack suits the lovely home.