Data Sheet-4
DEQ 60L
GRAPHIC EQUALIZER
All features & specifications subject to change without notice. 10-2014
©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5000 USA TEL 425-355-6000 FAX 425-347-7757 WEB rane.com
References
1. R. Miller, R. Jeffs, S. Radford, D. Bohn, “Perfect-Q, the Next
Step in Graphic EQ Design,”
RaneNote,
(2003).
Rear Panel
-14
+14
-12
-10
-8
-6
-4
-2
+0
+2
+4
+6
+8
+10
+12
-2
+2
-1.75
-1.5
-1.25
-1
-0.75
-0.5
-0.25
+0
+0.25
+0.5
+0.75
+1
+1.25
+1.5
+1.75
d
B
u
octaves
individual responses
(actual slider settings)
combined response
showing effects of
band interaction
Figure 1. Band interaction of 1/3-octave Proportional-Q filters
-14
+14
-12
-10
-8
-6
-4
-2
+0
+2
+4
+6
+8
+10
+12
-2
+2
-1.75
-1.5
-1.25
-1
-0.75
-0.5
-0.25
+0
+0.25
+0.5
+0.75
+1
+1.25
+1.5
+1.75
d
B
u
octaves
individual responses
(actual slider settings)
no band interaction or ripple
combined response
is perfect
Figure 2. Graphic response of Perfect-Q filters
0
+2
+4
+6
+8
+10
+12
-2
-3
-4
2
3
4
-1
0
1
Figure 3. Phase response of Figures 1 and 2.
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
20
100
1k
10k
20k
Low Off,
Mid ‘0’,
Hi Off
Low ‘0’, Mid +6, Hi ‘0’
Low ‘0’,
Mid Off,
Hi ‘0’
Low +6, Mid ‘0’, Hi +6
Figure 5. The interactive operation of the 3 Tone controls
Accessory
The model
SC 5.2
Security Cover is available as an option.