AngelEyes
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After much deliberation of what to do with the two AE AV15-X Subwoofers Russell conned me into buying, I have decided upon a sealed twin opposed driver design. The closest comparable commercial example I have seen is the Seaton Submersive.
The main reason for going this route is to produce a relatively small cabinet that won't have one particularly large dimension as most most subs with both drivers on the same face tend to.
I am hoping having some distance between the bass radiators will give a more even response as hopefully each driver will tend to excite modes in different places relative to the listening position. Any cancellation of driver vibration this configuration produces will be an added bonus.
The sub will be powered by the ubiquitous Behringer EP2500 via Speakon connectors to a terminal in the centre of the bottom face of the sub. This should make rotation of the subwoofer a simpler affair and hide the ugly cable/terminals as much as possible.
I would like the finished design to match my Walnut XTZ 99.36 Floorstanding speakers, which is why I am hoping to build a subtle curve to the sides of the subwoofer and apply a Walnut veneer.
I have a few options here, either the probably more difficult route of curving the side panels round a form/internal braces to create a true curved cabinet or to add the curve detail to a rectangular prism cabinet as more of a cosmetic finish.
The former approach may have the added benefit of reducing cabinet resonance but the latter may also improve the rigidity of the construction depending on the exact method I opt for.
Due to the heavy bracing I am using and 22mm construction my internal volume is 124L which is a bit small for these drivers (Qtc .726) but I intend to experiment with stuffing to bring it down if required.
I am also looking at using a BFD to apply some EQ to boost the bottom end a little but we shall see if this is necessary once in room.
Hopefully the build will start tomorrow but I am going to be taking my time with this so don't expect much progress just yet
Adam
The main reason for going this route is to produce a relatively small cabinet that won't have one particularly large dimension as most most subs with both drivers on the same face tend to.
I am hoping having some distance between the bass radiators will give a more even response as hopefully each driver will tend to excite modes in different places relative to the listening position. Any cancellation of driver vibration this configuration produces will be an added bonus.
The sub will be powered by the ubiquitous Behringer EP2500 via Speakon connectors to a terminal in the centre of the bottom face of the sub. This should make rotation of the subwoofer a simpler affair and hide the ugly cable/terminals as much as possible.
I would like the finished design to match my Walnut XTZ 99.36 Floorstanding speakers, which is why I am hoping to build a subtle curve to the sides of the subwoofer and apply a Walnut veneer.
I have a few options here, either the probably more difficult route of curving the side panels round a form/internal braces to create a true curved cabinet or to add the curve detail to a rectangular prism cabinet as more of a cosmetic finish.
The former approach may have the added benefit of reducing cabinet resonance but the latter may also improve the rigidity of the construction depending on the exact method I opt for.
Due to the heavy bracing I am using and 22mm construction my internal volume is 124L which is a bit small for these drivers (Qtc .726) but I intend to experiment with stuffing to bring it down if required.
I am also looking at using a BFD to apply some EQ to boost the bottom end a little but we shall see if this is necessary once in room.
Hopefully the build will start tomorrow but I am going to be taking my time with this so don't expect much progress just yet
Adam