Open Baffle Mark Audio project

Frame construction with Alpair 7 baffles at the correct angle for seating position head height. The wooden side runners may prove to be rather flimsy when I try to move the finished speakers - I will have to be careful. Fastening hardware is stainless steel including nylock nuts (at the moment I'm using temporary wing nuts & square nuts until I'm satisfied everything fits).

Baffle mounting screws are held in place by small rubber O-rings so that panels can be fitted from the front. There are also decoupling spacers between baffles & frame (I intend to leave the bottom baffle/driver in place when moving these & maybe the top one as well if it's manageable).

Threaded inserts fitted to baffles for the four 15" drivers can be seen in the image above. The Alpair packaging included front mounted self-cutting bolts which is a neat touch. These will fit flush to the front rebates.

Soundcare SuperSpikes used as mounting feet, fitted to M6 threaded inserts. The feet are internally decoupled which also allows easy tilt adjustment. I have taken the precaution of snugging up several nylon cable ties around the timber at the base as I suspect this may be a weak point. I will trim these later.

Rear uprights with speaker terminals mounted on wooden plates:

Aluminium side braces cut, angled & drilled at the front end only so far. I found that bending these to 45deg weakened the aluminium too much so I'm unable to fold round behind the rear support,  These will have to be bolted through from the sides using threaded inserts angled into the wood. It's probably going to be fiddly so I'll start by assembling these with wood screws and if everything works, drill out & glue threaded inserts in place so hex head bolts can be used.

Very good styling IMO.