I got two 12.17 EDGE last week, and I'm quite happy with them. Great performance, for a relatively modest price.
After a few tests I placed the subwoofers on the 25 and 75% width of the front wall, and they sound very good. I'm using the REF setting, and the left port open, which is what it seems most persons with the 12.17 are using, and since I want maximum depth extension I think it makes a lot of sense.
One of the clips I like to use when testing a subwoofer is from ''Kong - Skull Island', the first battle, when the main characters see for the first time the big monkey, and as I was expecting I noticed an improvement compared to my old SB 2000. In particular when the bombs are dropped from the helicopter, with the SB 2000 those explosions were quite weak, and now with the two 12.17 each explosion is certainly more noticeable. I can't say the difference is huge, but it's definitely there. These explosions have very low frequencies, and the 12.17 Edge at 1m is 104dB at 20Hz, it makes sense that these specific explosions sound loud, but not LOUD.
I think the official XTZ numbers are....
CEA 2010 - 12.17 Edge - 1m
I'm still being extra careful - been playing almost exclusively music for around 30 hours in total, in the last few days - it's possible that the sound keeps improving, but even without increasing the volume a lot and proper measuring equipment I think those values are very likely correct. With music these 12.17 sound immense, I think I'll never need to test or reach their limits.
With movies I still need to test them properly. ATM in my room the frequencies around 20Hz are clearly not as loud as from 30Hz and up, but that's what I expected, it'd be necessary a significantly more expensive subwoofer to go ''flat'' to the very low frequencies. The XTZ 12.17 EDGE competes directly with the SVS PB2000, but in Europe the XTZ is a lot cheaper, making it a great choice, IMHO.
Last edited by Silva741; 01-15-2019 at 01:02 PM.