3 Mono Blocks and one Stereo unit all in Chestnut Burl for a 5.1 system driven by a NAD pre amp. Going to a Proffesor of Ecology. They look stunning. Im particually proud of these as they are a mixture of materials which has taken time to perfect. Its a talking point, a signiture of the Nord brand. We will be taking some more proffesional images when complete for the website.