Hello MarcoTeijido, I have attached a link below to the user manual, you will find more information regarding electrical requirements here.
http://org.downloadcenter.samsung.com/downloadfile/ContentsFile.aspx?CDSite=US&CttFileID=6913073&CDCttType=UM&ModelType=C&ModelName=HW-M450/ZA&VPath=UM/201709/20170925111904277/HW-M450_ZP_FULL_170921.pdf
^Britt