Table of Contents
Advertisement
<
CONTENTS
9
Introduction
This section describes how to use the DX1 as a generic loudspeaker
management system. We recommend that you read the whole of the
manual before using the DX1 in this manner.
To simplify set-up of the DX1, 5 crossover modes are menu selectable.
These all have parametric equalisers, high and low pass filters, limiters,
gain and delay. For detailed information on these modes please study the
block diagrams along with the following descriptions. The 2x2 way and 2x3
way crossover modes have the option available to provide precise 'ganged'
parameter adjustment for stereo sources.
10
All crossover modes feature adjustable crossover frequencies with a choice
of slopes, 5 bands of driver compensation E.Q. per output, delay time,
limiters and absolute phase adjustment for each output.
10.1 Filter slopes
A choice of Bessel or Butterworth slopes at 12/18/24dB per octave and
Linkwitz-Riley at 24dB per octave are provided. Since Low and High pass
functions are separately adjusted, asymmetric slopes are easily achieved if
required. It should also be noted that the turnover frequency displayed on
the DX1 is the -3dB point for all slopes except 24dB Linkwitz-Riley where
the -6dB point is shown. If the -6dB point is to be used for the Bessel or
Butterworth filter, take the required crossover frequency, multiply this by the
appropriate factor from the following table and then select the closest
available frequency on the DX1 display.
Filter Type
Bessel 12dB/octave
Butterworth 12dB/octave
Bessel 18dB/octave
Butterworth 18dB/octave
Bessel 24dB/octave
Butterworth 24dB/octave
Please note that unlike conventional analogue crossovers, crossover points
and slopes are set with absolute accuracy since component tolerance
problems do not occur.
>
PRINT
CONFIGURING THE DX1 MANUALLY
CROSSOVER MODES
High pass filter factors Low pass filter factors
Martin Audio – DX1 Speaker Management System
APPLICATIONS GUIDE
1.45
1.31
1.37
1.19
1.35
1.15
9
GUIDES
0.69
0.76
0.73
0.84
0.74
0.87
Advertisement
Table of Contents
