From above left speaker get your assistant to drag the mirror along the ceiling towards you. The next point to find is the reflection point on the ceiling. This does depend on the position of the two loudspeakers in relation to each other though. In most cases this will be same distance from the corner as the left. When you can see the left speaker through the mirror you have found the first reflection point. The mirror needs to be about head height when seated. While sat in your listening position get your assistant to drag a mirror along the left hand wall. Depending on the size of the room or distance between the loudspeaker and you, you may may need an assistant. To find the first reflection point you will need a mirror. The third reflection point is on the ceiling between the loudspeakers and the listening position. These are on the two walls either side of the mixing or control desk. The first reflection point is the mirror point between the loudspeaker and the listening seat. Rooms such as mixing rooms, listening rooms and home cinema rooms will benefit. The treatment of the first reflection point is vital in all rooms where music is to be enjoyed. You will hear increased definition and improved accuracy. After you have controlled the first reflection you can appreciate true stereo imaging. The first reflection point does this by adding unwanted clutter. It also makes it very difficult to distinguish the true sound coming from the speakers. This reflection can confuse the listener because it adds extra information. This reflection is the next sound you hear after the direct sound from the loudspeakers. The first reflection point is the most discernible echo in a room it is also the most disruptive.