Data Sheet-3
DEQ 60L
GRAPHIC EQUALIZER
1
2
3
+
-
1
2
3
+
-
ADC DAC
1
2
3
+
-
1
2
3
+
-
DIGITAL SIGNAL PROCESSING
30 BAND GRAPHIC
WITH
PERFECT-Q
SPLIT-BAND
FULL-CUT
TONE CONTROL
25 Hz 20 kHz MID
LOWLOW HIGHHIGH
CUT CUT
12 dB / OCT.
INPUT
LEVEL
LEVEL
A / B
BOOST / CUT
CONTROL
Perfect-Q Proport-Q ±6 ±12
OL
+12
+6
+3
0
-3
-6
-12
dBFS
dBFS
(EACH CHANNEL)
INPUT A
INPUT B
OUTPUT A
OUTPUT B
BYPASS ALL
INPUT OUTPUT
OUTPUT
+
+
A
B
C
D
D
C
A
B
VC
Vc
CUT-ONLY
BYPASS FILTERS
FAIL-SAFE RELAY
FAIL-SAFE RELAY
OL
+12
+6
+3
0
-3
-6
-12
Block Diagram
Architectural Specifications
e equalizer shall be analog-controlled, with all control provided
on the front panel using 45 mm DEQ 60L linear sliders with dust
dams. A detented and guaranteed 0 dB point shall be provided on
these linear sliders. All signal processing shall be accomplished us-
ing high accuracy digital signal processing. e equalizer shall be
a two channel model, and each channel shall have thirty (30) fre-
quency bands located on standard ISO center frequencies. Each
band shall have a bandwidth of 1/3-octave. e equalizer shall be
front-panel switchable between two modes, Proportional-Q or
Perfect-Q. e equalizer shall have a front panel switch selecting
cut-only or boost/cut operation.
Low and high cut lters shall be provided with 12 dB/octave
slopes and adjustable corner frequencies. Tone controls shall be
provided for low, mid and high frequencies. e tone controls
shall have a range of +6 dB to o.
Input and output level controls shall be provided for each
channel. Input and output peak dBu meters shall be provided.
e unit shall provide an automatic passive bypass feature when
power is not available, and active bypass switches for each channel
when the unit is operating.
e inputs and outputs shall be active balanced/unbalanced
designs terminated with XLR, 1/4" TRS (tip-ring-sleeve), and
Euroblock terminals. e outputs shall have equal output imped-
ances. RFI lters shall be provided.
e unit shall meet CE and UL agency safety requirements
and be powered from an internal universal power supply (100
to 240 VAC) via a rear panel IEC connector. e unit enclosure
shall be constructed entirely from cold-rolled steel. e unit shall
be supplied with ears for mounting into a standard 3U EIA rack.
e unit shall be a Rane DEQ 60L Graphic Equalizer.
