 Typical soft-dome systems were made by Roger Quested, ATC, Neil Grant and PMC and were actively driven by racks of active crossovers and amplifiers.Other monitor and studio designers like Tom Hidley, Phil Newall and Sam Toyoshima continued research into the speaker/room interface and led developments in room design, trapping, absorption and diffusion to create a consistent and neutral monitoring environment.The main post-NS-10 trend has been the almost universal acceptance of powered monitors where the speaker enclosure contains the driving amplifiers.