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user manual
LMS-D6
LMS-D6 user manual
Page 12
Time Alignment
A further advantage of the LMS-D6 over conventional products is the provision of an
independently adjustable delay section for each output. This allows the true arrival time from
multiple drivers to precisely aligned rather than relying on the compromise 'phase adjust'
approach. Delay time is adjustable in 2.
..
.6µS steps (1mm).
Output Limiters
High performance digital limiters are provided for each output with control over attack time,
release time and threshold level parameters This level of control allows the user to balance the
required subjective quality of the limiter against the driver protection requirements. It does also
mean that an incorrectly set limiter may sound awful! In particular, as with all limiters, using too
fast an attack or release time will result in excessive low frequency distortion. In the design a
crossover sub-menu there is an option for automatic limiter time constants. In this mode the time
constants will be automatically set from the Highpass filter frequency. See table below.
Table of automatic attack and release times
The time constants are set by the high pass filter frequency for that channel.
High pass filter
High pass filterHigh pass filter
High pass filter Auto attack time
Auto attack timeAuto attack time
Auto attack time Release
ReleaseRelease
Release
<10Hz – 31Hz 45mS x16 (720mS)
31Hz – 63Hz 16mS x16 (256mS)
63Hz – 125Hz 8mS x16 (128mS)
125Hz – 250Hz 4mS x16 (64mS)
250Hz – 500Hz 2mS x16 (32mS)
500Hz - 1kHz 1mS x16 (16mS)
1kHz – 2kHz 0.5mS x16 (8mS)
2kHz – 22kHz 0.3mS x16 (4mS)