Originally Posted by edoggrc51 /forum/post/21327028
Quick question for ya, how inert are those cabinets??
Originally Posted by lukeamdman /forum/post/21328477
There's 9lb's of polyfill in each cabinet, and I can't hear any noise/resonances from the cabinets at all.
In terms of cabinet vibration, you can obviously feel it if you crank it up, but it's MUCH less than any commercial sub I've ever had. My DD-18 had WAY more flex in the cabinet.
Originally Posted by nube /forum/post/21336389
No doubt your system sounds great, Luke. Thanks for the vids.
I do have a comment on the most recent slomo video of all four subs. I think it may be optical illusion, but depending on where I focus during the video, I find different things. I've thought the top two drivers were equally out of phase with the bottom two drivers, but in phase with each other, when looking at the top of the center speaker. I've thought the top left driver was out of phase with all the others when staring at the midpoint between the two drivers on the right. I've though the bottom right was out of phase with all the others, and significantly, when focusing on the light reflection on the top right driver.
Maybe I'm crazy, but try it for yourself. If it's of serious concern to you, a good way to see would be a direct-on camera view (from the front, equidistant from the stacks) with strong side lighting.
Originally Posted by lukeamdman /forum/post/21423762
Looks like the HPF was causing that dip around 13hz.
The red line is all HP filters bypassed on the miniDSP.
The green line is a 10hz 48db BW.
The blue line is a 16hz 48db BW.
Why would the 10hz filter cause such a massive drop at 13hz?