I am evaluating WinMLS personal edition with a view to using it to measure large room acoustics used for recording instrumental ensembles e.g. string quartet. I would like to try this out but am new to this and would like to know what the best mic and speaker positioning is for capturing impulse response and measuring RT etc. Should the speaker be placed where the ensemble sits and the measurement mike placed where the mikes recording the performance would normally be -- in my case approx 1 to 2m from the front of the ensemble? What height should the measurement mike be set to -- same as the recording mikes? Also I do not have an omni-directional speaker -- can I get away with using an adequately powered single speaker e.g. Genelec 1029a? And does this Genelec have enough power and a wide enough frequency response for this? Sorry if this is basic but I can't seem to find any guidance on this aspect anywhere.