Crossover recommendations Reply #25 – 2015-08-14 16:28:08 The OP or indeed anyone interested in getting the best out a studio monitor + subwoofer(s) system would do well to read the following introductory guide. Setting up Studio MonitorsIt is from the Neumann site and is the best single source I have found so far. Some of it may seem very basic but at thirty six pages everyone will learn something they didn't know before.Here is an example paragraph relevant here.QuotePlane Wave Bass Array™ A benefit of multiple subwoofer systems is the possibility to reduce the side wall interaction thereby improving consistency in the side-to-side low-frequency reproduction. This is important in studio applications where the sound engineer needs to move left and right along the mixing console, or where there are multiple listening positions along a large format mixing consol, for example in the movie industry. The subwoofers should be positioned along the front wall to generate a plane wave down the room. This is called a “Plane Wave Bass Array™” (PWBA™). The required number of subwoofers depends on the width of the room: wider rooms need more subwoofers. Two to four small subwoofers are recommended for small rooms and three to four large subwoofers for larger rooms. The subwoofers should be positioned along the front wall with a spacing of 70 cm (2.5’).