I have just recently taken delivery of a new sub from Rythmik (F12G) which is supposed to be very accurate with low distortion. It's replacing a HTiB sub that got a lot of headache inducing distortion and is very boomy.
The HTiB sub has been retired and F12G has taken over it's position. Initial set-up using Audyssey has distance as the same, the trim is slightly different due to level the level position on the sub amp. The change in sound quality is not subtle.
I intend to carry out low frequency measurements of the new F12G and will compare it to the HTiB (have previous measurements of this). Will post results back here for comparison and let you all advise/critique/suggest improvements.
Marantz SR-7009, Oppo BPD-93, MTV 7000D, aTV, Harmony Home Control remote, KEF E301+T101, MiniDSP (2x4)+(10x10HD)+(DDRC-88A), Emotiva 2xXPA-5 (Gen2), Rythmik 2xF12G+2xF8, HiMedia Q16, LG 55EC9300.