XTA DP6i, Operator'S Manual

Page: 29 / 39

DP6i
Operators Manual Page 29
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. On the Limiter control screen within
Audiocore there is an option for automatic limiter time constants.
In this mode the time constants will be automatically set from the Highpass filter
frequency according to the table below.
The time constants are set by the high pass filter frequency for that channel.
High Pass Filter Auto Attack Time Release Time
<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)