This will be another VersaBox build like that of Drottnar, Missing Link, Monoculus, etc...
Finally got some retesting done, as well as some quasi-measurements. I also posted the SIG180-4 results in the SIG180-4 thread. These are with the pole-vent film removed this time.
I measured the T/S with the film off of the pole this time, so those are truly valid. Those specs did not change that much from the previous.
I also measured the woofers in a very holey box with lots of fill, surface mounted, sitting on the floor facing up. This is not quite ground plane being the box was against the 'wall', and the mic was about 30" from the woofer on axis in the leaky box. It is also not free field. This means the baffle step is partially compensated for in the measurements. I see the HD as being roughly -40dB, even if 3rd order dominant in the region below 2kHz.
The AMTs were measured with a series 27uF cap at about a meter on axis distance, with damping surrounding the frame, to get a quasi-IB measurement set. This means that baffle step has as a majority not been removed from the FR measurements like an in-box measurement would be. However, these are linkely not to be seen as in-wall or IB completely, as losses are still likely. I took HD measurements as well, and it really seems to be well behaved with second order being dominant but at a respectable -40dB from reference down to 2k easily.
I think these Dayton Signature components will mate rather nicely together, but time will tell....
Finally got some retesting done, as well as some quasi-measurements. I also posted the SIG180-4 results in the SIG180-4 thread. These are with the pole-vent film removed this time.
I measured the T/S with the film off of the pole this time, so those are truly valid. Those specs did not change that much from the previous.
I also measured the woofers in a very holey box with lots of fill, surface mounted, sitting on the floor facing up. This is not quite ground plane being the box was against the 'wall', and the mic was about 30" from the woofer on axis in the leaky box. It is also not free field. This means the baffle step is partially compensated for in the measurements. I see the HD as being roughly -40dB, even if 3rd order dominant in the region below 2kHz.
The AMTs were measured with a series 27uF cap at about a meter on axis distance, with damping surrounding the frame, to get a quasi-IB measurement set. This means that baffle step has as a majority not been removed from the FR measurements like an in-box measurement would be. However, these are linkely not to be seen as in-wall or IB completely, as losses are still likely. I took HD measurements as well, and it really seems to be well behaved with second order being dominant but at a respectable -40dB from reference down to 2k easily.
I think these Dayton Signature components will mate rather nicely together, but time will tell....
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