Wenn a client emails his list I often can see which properties his set has. At show I do the same. before listening I describe how the image and sound will be wenn i play one of my cd's. Wenn you think in properties it is a lot easier to understand audio. Wenn I go to a client I Always first ask them to play 4-5 numbers they know well. Wenn it is possible I listen with him behind the hotspot. I get an idea about the image, sound and the way it performs in his acoustic. Then I use a few numbers to improve the individual focus and also the balance of the low freq. in the room. This costs me about 20 min. Then I ask him to play they ame music he strarted with. You can seet he smile on there faces wenn they are listening. Then I say: and this is for free!!