Hi all, Just order a Canton CD1 set up and I want to know how to set the seaker levels. Only problem is I don't have an SPL meter and spending £30 for something I'll use once isn't great. Is there a formula where I can calculate the speaker levels so I can get a rough estimate then use my ears to fine tune the rest of the way ? Is there anywhere in SW London where I can rent an SPL meter ? Thanks, Richie.