Hi, I hope I am posting this in the correct section. The question I have is one that I am sure has been asked many times before and I hope I am not frustrating anyone by asking again. The question I have concerns setting your speaker levels with a sound meter. I have read threads on this forum and countless other forums regarding this but have been unable to find and answer to my specific question. Firstly my equipment: Receiver: Yamaha RXV-800 Settings: all speakers are set to Small, Bass set to Subwoofer Subwoofer: B&W ASW600 Settings: Crossover defeated, Volume control on 9 o’clock position, Slam setting ‘A’ I can’t remember the name of my setup disc but it is not Avia or Video Essentials. In any event, what is confusing me is the following: My amp has a subwoofer level setting (0 to -20db) and in the setup menu it also has a Dolby Digital LFE level (0 to -20db) and a DTS LFE level ( -10db to 10db ). How do these relate to each other? One explanation I got was that I should use the subwoofer level when setting my speaker levels, i.e. disconnect the subwoofer when setting speaker levels. Once they are set I should select the test signal for the center channel, disconnect the center channel and then set the subwoofer via the subwoofer level setting to the same db as the speakers. I should then run the subwoofer test on the test disc and then adjust the LFE level setting until I get the same db as the speakers and do the same for the DTS LFE level using the DTS test signals on the disc. His reasoning was that since all speakers are set to small, the subwoofer level controls the level of bass that would normally be going to the speakers. The LFE adjustments are for the .1 channel which goes to the sub. Another explanation I got was that I should set both Dolby LFE and DTS LFE to max and then only adjust the subwoofer level setting using the subwoofer test section of the disc. The LFE settings will track the subwoofer level setting. Could someone please point me in the correct direction as it is driving me nuts. I used to set by ear but now that I finally have an SPL meter I would like to set correctly. Thank you in advance for any help.