The Inuke 6000 dsp showed up and I finished the subwoofer Saturday night! Got to start testing it out yesterday. I currently don't have any HPF on the HT-18 because it seems like the Inuke's filter range only goes down to 20hz? That's a bit of a disappointment. Looks like I need to purchase a miniDSP 2x4?
I had the LPF on my receiver (Old Onkyo TX-NR509) set to 40Hz. I raised it to 50Hz as my center's rear port was really moving a ton of air at 40. The HT-18 didn't seem to mind.
(Warning: Audio noob opinion ahead) My initial reaction was that the ht-18 was extremely transparent compared to the car subwoofer tuned to 38 we were using before. It didn't seem to peak or be harsh during any of the 3 movies we watched. I even did some low volume frequency test from my PC and it was nice and smooth everywhere from 15 to 50. I definitely noticed everything new that we were missing before, the feel especially, without it being harsh or hurting our ears. Before, every time the old subwoofer was activated, it sounded like the same tone, over and over. Like a tuba playing the same note over and over. This actually had smooth, musical, range. Our 3 Pomeranians definitely did also, they got extremely scared and ran every time something happened. They will get used to it. I couldn't get a solid response from my wife sadly, and I like to think that was because it was so transparent that it's the way it "should" sound and feel, but she has never really payed attention. I will have to get a 3rd person opinion when a friend comes over.
Now with that being said, I have a couple questions that someone might be point me in the correct direction.
The Inuke 6000 is turned up to about 75%, yet it's not even blinking the first output LED. I checked inside the software and it was never getting even close to the max output or close to clipping. Is that because my Onkyo is pushing out a weak .2V subwoofer signal out the RCA? Should I upgrade receivers, or will the miniDSP fix that also?
The Inuke has a second channel, and has the DSP feature, would there be any advantage to turning the LPF on my receiver up higher to 80Hz, and putting my 12 inch car woofer in the 50-80Hz range? I think I would move it back into it's sealed enclosure if this is a good idea. My guess it it would further relieve my center (Old/cheap Polk Audio CS2 Series II) and Left/Rights (Old/cheap Polk Audio Monitor70 Series II Floorstanding) from playing the lower frequencies? I'm not sure if this is a good idea or even worth the hassle yet.
Thanks so much for all the help guys. The box recommendations and help building was greatly appreciated, and appear to be on point!
Here are a couple pictures of things in their temp testing locations. I got the subwoofer in the corner to the right of the couch, and the Inuke had to go into another room for now.
Last edited by TweakGames; 10-02-2017 at 11:28 AM.