LS1be Studio Monitors Manual

page 42

page 43

Software Control Settings

Toe-in angle - Because of the acoustic properties of its wide bafe, the off-axis sound level of the

LS1 becomes gradually softer for all frequencies above 250 Hz when the angle is larger. Since

its tweeter has a wide dispersion up to high frequencies, the LS1 approaches this theoretical

response very well. Grimm Audio LS1's can therefore be used succesfully in a ’toe-in‘ setup.

The preferred toe-in angle for the LS1 is 45°, so the right-angle projection of the tweeters meet

0,5m-1m in front of the listening position (see the ’LS1 setup with 45° angle‘ picture). When

using this toe-in angle in the right acoustics, the LS1's offer an even wider sweetspot and an

enhanced spaciousness. To make sure the direct sound frequency response (that is 15° off-axis in

this case) is still at, you should select the ’45°‘ option in this preference setting. This engages an

EQ that compensates for the slight treble roll off at 15°. In some acoustic environments, aiming

the speakers directly at the listeners position (as in the ’LS1 setup with 30° angle‘ picture) works

better. If in your room you prefer this classic 30° positioning, please select the corresponding

preference option to keep the on-axis response optimally at. Some people prefer a ’toe-out‘

setup, with the speakers pointing 15° outwards. This offers a less focussed phantom centre and a

more diffuse, ’larger‘, sound. In that case, again use the ’45°‘ setting for compensating the treble

roll off at the listening position. In case you like to place the LS1‘s parallel to the wall (’0°‘) it is

also advised to use the ’45°‘ setting and maybe apply some EQ to taste (see next page of the

preferences).

Power LED brightness - This can adjust the brightness of the white LED in the LS1 cabinets.

Sensitivity - This reads the analog input reference level from the indicated speaker, that is set

with the tiny sensitivity control at the back of each LS1. Please select the speaker to read (the

system reads one speaker at a time). When using analog sources like a phono pre amp, you can

use the sensitivity control to set the optimal level. The goal is to adjust the sensitivity until the

loudness is at nominal level with the LS1 volume set to the 0 dB reference level. Make sure all

speakers in your system are set to equal analog sensitivity.

Software Control Settings

LS1 setup with 45° angle

LS1 setup with 30° angle