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Section 4
Section 4
4.8 Speaker Alignment Delay (DLY)
4.9 Output Routing
DriveRack™ User Manual
28
Detailed Parameters
Ratio 1.0 to Inf:1
Ratio is the amount the 240 and 241 DriveRack™ units reduce the signal level of the sound that
is above the threshold. A 2:1 ratio means that if the incoming signal is 2dB over the threshold
the 240 and 241 DriveRack™ units will compress the signal, and outputs a signal that only goes
1dB over the threshold. For light compression choose a lower ratio, while a heavy compression
requires a higher ratio. A setting of Inf:1 sets the compressor act as a limiter.
Gain -20 to +20 dB
This parameter is used to compensate for the gain lost during compression. By using heavy
compression on a signal and then boosting the signal with the output gain, the user can create
a signal that sounds much louder than it actually is.
The 240 and 241 DriveRack™ units also offer a speaker alignment delay which is located after
the crossover section. This delay is ideal to use for compensating signal delay that occurs
between speaker driver components such as speaker clusters or between internal speaker com-
ponents such as high frequency, mid frequency and low frequency drivers within a speaker cab-
inet.
Delay On/Off
Turns the Speaker Alignment delay on and off.
Units - MS (milliseconds), Feet or Meters
Selects the unit of measurement for the delay.
Length
Sets the amount of Speaker Alignment delay time. Delay times include: Seconds- 0-365.32 ms,
Feet- 0-411.72 and Meters - 0.0-125.31. Fine adjustments are made in 10 microsecond incre-
ments.
The output section 240 and 241DriveRack™ units provide the user with the ability to control
output levels of the unit and adjust phase compensation of loudspeakers within the signal path.
The parameters for the Phase Compensation effect are as follows and are user adjustable.
Please refer to section A.9 of the Appendix for a complete output signal routing diagram.
Output Adjust On/Off
This parameter is used to turn the selected output level and shift parameters on or off. When
level/shift is off, level is set to 0dB and phase shift is 0
Gain -Inf to 20.0dB
This parameter is used to set the overall output level of the selected output.
Phase Off, 0 to -360
Sets the amount of phase within the selected output path. The phase is referenced to the upper
frequency of the selected output crossover band.
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