These are extremely well regarded speakers, but they are not digitally enhanced, and the distribution channels are much smaller than mainstream design.http://www.linkwitzlab.com/
His designs have received Class "A" ratings in Stereophile, if that means anything to you, and he considers the Orions his best of the bunch.
The cost can range from ~$2.5K DIY plus amps (you need 4 ch/side), it is an active design, to $7.5K built including the ampshttp://www.linkwitzlab.com/orion_us.htm
Despite their price, many believe that these speakers can compete with speakers costing 10 times their price.
Linkwitz is considered one of the best speaker designers, he just is not very self promoting, nor is he very good at playing the high end game.