Speaker companies with a focus on parts quality and measurements

Researching my next upgrade and am looking for good price/performance ratio with high quality drivers and public measurements. Currently using a pair of Chane A1rx-c bookshelf with a Rythmik F15 sub, and I'm actually quite happy with this setup. Right now I'm primarily looking at Ascend Acoustic's sierra-2 or something from Philharmonic, but I'd like to know if there are similar companies that I'm not yet aware of.