Infinite Baffle Gallery

Holes for the manifolds

The stud layout happened to suit the openings perfectly. This old house has no noggins, so no structural members were cut

 

Gluing of manifolds

It's hard to beat the old "rope tightened with a stick" technique. It's been around for a long long time...

 

Drivers arrive

A pair of "six packs"

 

One of the Venom drivers

There seems to be something else in the box....What is it about cats and boxes anyway?...

 

Finished sanding

These look so good it's a shame to hide them in a wall

 

Test fit - back

Still be able to see the back though....

 

Test fit - front

Once the grille cloth is on, it should be quite neat

 

Mounting screws

In the past, I've used normal screws to hold drivers. As long as they're not done up too tight, they work just fine.
I'm going to try these roofing screws which are about to be sprayed black. Twelve drivers certainly need a lot of screws!

 

Original drawing

The final product turned out very close to this sketchup design

 

Ready to install

One of the two manifolds

 

Front view

There's a fair bit of weight ....
Manifold 33 kg
Drivers 42
Plinth 8
Grille 2
Total 85 kg

 

Close-up

Shelf brace, driver opening rollover and top edge bracing

 

Mounting detail

The Venom driver comes with a removable rubber gasket that slips over the driver lip. Adding washers to the mounting screws allows a firm mount without overly crushing the gasket. This shot was taken after the initial tightening with a cordless drill which had a safe setting on the clutch.

A cardboard template was made up to mark where to drill the screw holes. The small rebate makes locating the template easier, as well as holding the driver roughly inplace during install.

 

Silicone

Silicone was used to seal and isolate the manifold from the house framing. A spatula was used to get a smooth finish. Sealing two manifolds on both sides of the wall took 10 tubes.

 

Grille

Grille neatly hides all the innards. Standing off from the wall by 5mm allows movement without coupling to the wall

 

Grilles

Two manifolds open right where the main speakers will be located

 

Rear view of installation

Rear view of manifold is quite acceptable

 

Gasket tightened

The gasket was given a final tweak by hand with a socket set. This added about 1/2 turn to the screws which resulted in a small amount of deformation of the gasket

 

Rearranged room

The plasma TV finally arrived meaning the room was rearranged. The mains now sit next to the manifolds

 

Grilles on

The rearranged room with the grilles fitted to the IB's