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10.2 Time Alignment
A further advantage of the DX1 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). To convert from units of time
(i.e. milliseconds) to units of distance use the following formula:
1 millisecond = 343mm (1.126ft) @ 20°C (68°F) or to calculate time delay
for a known distance, use:
Time delay = Distance in meters
20.06 x 273+˚C
Where ˚C is the temperature in ˚C.
Or to simplify this equation at 20˚C.
Delay time in milliseconds = Distance in meters x 2.192.
Or delay time in milliseconds = Distance in feet x 0.955
(N.B. Centigrade = (Fahrenheit –32) x 0.5555).
10
Martin Audio – DX1 Speaker Management System
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