Help me convert old speakers to actives

[AlmaAtaKZ]

Amp boxes will be attached once glued together

 

[AlmaAtaKZ]

Threaded inserts for mounting the amp. Back panels.

 

[AlmaAtaKZ]

A lot of progress this week:

• Partition and main braces are in
• All mounting holes drilled and threaded inserts are in
• internal surfaces primed with PVA

 

[AlmaAtaKZ]

And my master builder has done the tapered bevels.

 

[AlmaAtaKZ]

Trial fit of front and back panels

 

[AlmaAtaKZ]

The back panel will be removable and held by abt 30 M4 bolts into threaded inserts in the walls and braces. 2mm neoprene gasket under.

 

[AlmaAtaKZ]

I am also thinking to put a neoprene sheet between the new front baffle and the old front panel.

 

[somebodyelse]

I am also thinking to put a neoprene sheet between the new front baffle and the old front panel.

If the idea is to provide some damping have a look at buytl sheet. It's often used in automotive panel damping with aluminium as the constraining layer.

 

[AlmaAtaKZ]

If the idea is to provide some damping have a look at buytl sheet. It's often used in automotive panel damping with aluminium as the constraining layer.

It would be squeezed by screws. Would it slowly get squeezed out from between the panels? (There will be nothing to hold it in from the sides)

 

[somebodyelse]

It would be squeezed by screws. Would it slowly get squeezed out from between the panels? (There will be nothing to hold it in from the sides)

That'll only be a problem if you get one of the butyl sealant or putty varieties that feel a bit like chewing gum. The usual sheet forms (pond liner, gasket material) are stable like the varieties in vibration mounts, railway primary suspension etc.

 

[MatrixS2000]

Just seeing the thread now. What a fantastic project…kudos to @AlmaAtaKZ

 

[AlmaAtaKZ]

I am about 60% through cabinet conversion/assembly. DSP setup after that.
Both the cabinet mods and the DSP setup are my very first attempts at these.

 

[AlmaAtaKZ]

Some progress in the last two weeks:

Cabinet lining for the new front and back panels:

 

[AlmaAtaKZ]

Amp boxes glued on:

 

[AlmaAtaKZ]

The new front baffles and back panels sanded and primed with shellac and sanded:

 

[AlmaAtaKZ]

And first coat of spray paint:
Progress about 85%.

 

[AlmaAtaKZ]

Remaining work:
- second (and maybe third) coat of paint
- soldering and attaching drivers to baffle and then to box
- internal lining of the MF chamber and routing the cables
- bolting on the back panel and amp

Hopefully setting up soon!

 

[AlmaAtaKZ]

Mini-update: second coat done. Result acceptable.

 

[AlmaAtaKZ]

Trial fit back and front.

 

[Salt]

Real high amount of work so far, and it looks amazing. Respect!
Now the next step, the xovers.
Go ahead.