Thanks for your reply.
1. I got this reply from Quested, fyi.
So the recommendation is based on monitors with a wide dispersion that is typical of soft dome HF and mid drivers. This is something we have found over years of designing and working with systems that the sounds stage becomes more stable and defined. This when used in the equilateral triangle format we find brings the best experience with wide dispersion monitors.
2. I tried to search this topic and found out these information.
'To get an accurate stereo image, the listener and speakers should be positioned in an equilateral triangle.
Actually, there is some controversy around this…
I think the third point of the triangle (let’s call it the reference point) should be behind your head, so that your tweeters or mid-range drivers are pointed directly at your ears.
Surround sound speaker placement standards, like Dolby and ITU, often show this point in the center of your head. Maybe because it makes speaker layout easier.
Recording studio designers tend to place it behind your head, which makes more sense for stereo listening.
In his book, Home Recording Studio: Build It Like the Pros, Rod Gervais recommends that this point be 16 inches behind your head.'
'As a good rule of thumb, the listener to speaker distances need to form an equilateral triangle, as shown below, where the speakers are aimed at a point approximately 16 to 18 inches behind the listener’s head.'
The true reference point for imaging is just behind the listener's head.
3. Do you think that it's better or more scientific and reasonable to arrange the monitors placement base on the positions of my two ears?
I did measure the distance between my ears, which is about 16cm. Because my room is not too big, the 16cm distance still has a little impact on the layout. If I hope to get more scientific and reasonable layout, do you think that basing on the positions of my two ears to identify the each side monitor angle and distance is the better choice, as shown in the attached drawing?
Thanks a lot.
Meng
jani-oksanen:
Hello,
I asked this from our R&D:
Several suggestions like this are floating in the Internet. The principle is that of the equilateral triangle for standard stereo. Equilateral triangle here suggests that the distance from the monitors to the listener is equal to the distance (of the monitor centre lines) between the monitors. This creates the sound stage with correct virtual image locations. In addition, the monitors should be aimed directly at the listening position. The suggestions that the monitors are aimed behind or in the front of the listener are usually suggestions for the products that present the flattest frequency response slightly off-axis. When this is the case, the suggestion of the video makes sense. For each monitor/manufacturer, it is advisable to follow the manufacturer’s recommendations for this. Genelec recommends aiming speakers directly at the listener as this ensures the best flatness of the frequency response and the largest area of flat frequency response around the ideal listening position.
Best regards,
Jani Oksanen
Customer Support
