JBL SYNTHESIS SDEC-1000 User Manual

2.2
WHAT THE SDEC DOES
14
Driver Time Correction:
Once again, because the SDEC “knows” what speakers it’s being used with, it can correct for the different arrival times of
sounds from low- and high-frequency drivers. Arrival times are slightly different because the horns, tweeters, and
midrange drivers are mounted at somewhat different distances from the listener. The SDEC can delay the sound coming
from the closer drivers slightly, so that all frequencies impinge on the listener’s ears simultaneously, reducing acoustic
“smear”. All the frequency components that comprise complex waveforms arrive together; the end result is greater fidelity
to the original waveshape.
Figure 2:
System With and Without Driver Time Correction

JBL SYNTHESIS SDEC-1000 Specifications

General

Brand	JBL
Model	SYNTHESIS SDEC-1000
Category	Stereo Equalizer
Language	English