How to calculate the most misunderstood placements of speaker and listening positions within any given room.
The TOE-IN angle of the speakers should also be strictly set to a range starting from a minimum of 17 degrees to a maximum of 19 degrees.
That angle needs to be set to eliminate reflections and resonances within the listening field, causing destructive acoustic interference waves to the musical signal projected from the Speakers position and receiving at the listening position.
Projecting speakers directly straightforward must never ever be set up, as seen in most installations worldwide.
It exites parallel side to side wall and parallel front to back wall destructive acoustic interference waves, resonances, echoes, and unwanted room nodes.
If done correctly, then no acoustic treatment will be required.
The reason why installers have to use acoustic treatment is due to [ 2 ] harsh in your face statements ,that I will address with big emphasis on the installers and manufacturers of products.
1. The starting positions of speaker and seating calibration is always incorrect in every installation, no matter what.
2. The manufacturer designs speakers in a laboratory environment and when they are installed into a real home environment, then it will expose the laboratories incorrect positioning placement and incorrect microphone measuring positioning also the plasters that they use within their measuring instruments, due to electromagnetic radiation noise within their measurement systems electrical power supply feed, that is introduced into the measuring noise floor for the designing of a flat response frequency spectrum from the speakers.
3. There is no speaker that is designed in a laboratory that has a flat in-room frequency response when brought into a realistic room environment for installation
- (As Shown In diagram above) Take the room length and divide it into 28% and 72%. (From the front wall)
- Then take the distance between the first 28% line, from the front wall of the room and the first 72% line of the front wall of the room and call it (X)
- (X) will now be the distance from center to center of the front baffle of each speaker.
- (X) will also be the distance to the listening position from the center between the speakers.
- This gives you 97% accuracy of the speaker position and is the simplest way to get as close as possible to the correctly calculated setup.
- 100% Accuracy can be achieved with the following data, which we will be needing from you
- Width of the room:
- Hight of the room:
- Length of the room:
- All data specification of the speakers in use for that specified room:
Make and Model
- All data specification of subwoofers, if used in that specified room:
Make and Model
- Is it an open room:
Yes/No
- Is it a closed room:
Yes/No
- The measurements must be in (mm):
- Speaker and listening positions can be calculated within (3mm) of accuracy
- Setting up with a laser measuring tool will help achieving that accuracy
- For an accurate and most musical performance from your audio system contact Hermann Maischatz
at:This email address is being protected from spambots. You need JavaScript enabled to view it. and we will calculate and guide you through a perfect installation of your audio system - Start with the 97% set up as explained above and experience the difference so far. If you like what you hear, then contact me for the ultimate experience of your audiophile journey.
Contact Hermann at