OK i'm new to this...i have a very small room like 10 x 11 with 8 ft ceilings...i'm planning to treat my room without buying expensive brand name materials.. I've watched a ton of videos and what not and i'm still not sure about some things....so i have a few questions here....are bass traps meant to be absorptive or reflective??? and @ what positions to you put absorbers??? and what positions to you put reflectors????