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LYD 5 User manual

Positioning the speakers

In order to get the best performance from your Dynaudio speakers, care must be taken in positioning them in the listening environment. The room greatly affects the sound so the position and angle of the speakers relative to the walls, ceiling and floor is critical in any listening environment.

Acoustic Axis

The acoustic axis is an imaginary line passing through the center point on the speaker and is used for positioning. This point, shown in Figure 3, should be used for measuring the distance and angle to the listener. The point is positioned half the distance between the boundary of the tweeter and the boundary of the woofer or midrange driver. LYD 5, 7 & 8 are designed to be positioned vertically and pointed directly at the listener, while the LYD 48 is designed to be used horizontally.

Figure 3 : The acoustic axis

Figure 4: Room diagram, walls, and ceiling

Figure 5: Speaker angle, 60deg

Room Boundaries

Each surface in the room constitutes a boundary for sound; floor, walls, and ceiling. Room boundaries will reflect sound to one degree or another depending on what their surface is made of; hardwood, drywall, carpet etc. Placing speakers very close to any boundary should be avoided. The closer a speaker is to a room boundary, the more anomalies there can be in the low frequency response of the system. Placing a speaker close to more than one boundary (e.g. in a corner) creates even worse problems in many cases.

Conversely, placing speakers exactly halfway between room boundaries can over-excite fundamental standing waves in the room, making the bass response less reliable. This also holds true for the listening position. These room anomalies are always present and good placement of the speaker and listener will reduce their effect.

A good rule of thumb is to place speakers somewhere between one quarter and one third of the distance between room boundaries as shown in Figure 4. Also, make sure the listening position is not right in the center of the room if possible. In larger rooms, this is less critical than in small rooms.

Sometimes this ideal positioning is not possible. Limitations in space and other equipment or furniture in the room will dictate some aspects of the speaker position. The idea is to do the best you can with the limitations you have.

Listening Distance

The LYD 5,7 & 8 speakers are designed as near field monitors. Near field monitors should be placed relatively close to the listener, between 1 and 2 meters. LYD 48 can be used both as a near or mid field monitor. The ideal listening distance is between 1.5 and 2.5 meters.

Speakers on the Desk

These loudspeakers are designed to work well in a variety of positions, even very close, placed on the work surface in front of you. If they are resting on a desk or console, they may be tilted up to aim at ear level with great results.

Speaker Stands

If you need to place your speakers on stands behind your work surface or computer screens at a greater distance, it is recommended that you use a subwoofer to augment the low frequency response. This will help the speaker system achieve a reasonable volume without overdriving the speakers.

Listening Angle

To begin with, the speakers should be placed so that the drivers are oriented vertically, with the tweeter directly above the woofer. This orientation ensures correct time alignment between the high and low frequencies as they arrive at the listener.

Horizontal Angle

The speakers should be placed so that they create a 60 degree angle between the speakers, as shown in Figure 5. The easiest way to accomplish this without measuring the angle, is to create an equilateral triangle between the speakers and the listener. In other words, the distance between each speaker should equal the distance from each speaker to the listener. The LYD 48 can be positioned with the woofers inside (recommended) or outside, depending on how the equilateral triangle can be achieved best. Make sure to take measurements from the acoustic axis of the speaker.

An easy method to do this involves the tape measure and string.

  1. With the tape measure, check to see that the speakers are not placed further away than 2 meters for the best response.
  2. Once you have initially placed the speakers, take the string holding one end at the speaker’s acoustic axis and stretch it out to the listening position.
  3. Mark this point with a marker.
  4. Do this again for the other speaker to ensure that they are both the exact same distance from the listener.
  5. Use the string to measure the distance between each speaker. This should also be the same, forming and equilateral triangle between the two speakers and the listener.
  6. Make adjustments as necessary to place the listener and speakers at the same distance from each other

Vertical Angle

The vertical angle of the speakers should orient the loudspeaker directly toward the listener’s ear level. If the speaker is placed higher than the listener, they should be angled downward. Conversely, if the speaker is below the listener’s ear level, they can be angled upward to point at the ear as shown in Figure 6.

Figure 6: Listening angle vertical