Rolls REQ131 User Manual
EQUALIZERS
Rolls equalizers are designed for modern sound reinforcement and recording applications. Smooth band-pass
filtering and transparent low-noise circuitry provide virtually distortion free operation.
REQ131 Mono 31-Band Graphic Equalizer
20
50 100
30
16
EQ
BYPASS
HPF
200
1.5
400
500
HZ
LEVEL
LPF
6
4
10
2
30 -12
1
KHZ
202531.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.2K 1.6K 2K 2.5K 3.1K 4K 5K 6.3K 8K 10K 12.5K 16K 20K
0
+17
+10
0
-7
+12
-13
REQ215 Dual 15-Band Graphic Equalizer
20
LVL
10 150
Hz
3.5630
kHz
IN/OUT
20 40 63 100
+17
+10
0
-7
-13
160
250 400 630 1K 1.6K
CHANNEL 1
2.5K 4K
6.3K 10K 16K
+12
0
-12
20
+17
10 150
Hz
+10
0
-7
3.5630
kHz
-13
LVL
IN/OUT
FEATURES
• Standard ISO Frequency Centers
• Adjustable Hi/Low Shelving Filters
• XLR, 1/4" and RCA Inputs and Outputs
SPECIFICATIONS
Frequency Response: 16 Hz to 30 kHz +/-3 dB
THD: <.03%
S/N Ratio: >90 dB
Max Input: +21 dB (REQ131)
+17 dB (REQ215)
Max Output: +21 dB (REQ131)
+17 dB (REQ215)
Input Impedance: 10KΩ (20K balanced)
Output Impedance: 50Ω
LED Levels: +17, +10, 0, -7, and -13 dB
Frequency Centers: 31 ISO standard 1/3 octave +/-3% (REQ131)
15 ISO standard 2/3 octave +/-5% (REQ215)
Shelving Slope: 12 dB / Octave (REQ131)
6 dB / Octave (REQ215)
Size: 19" x 6" x 1.75"
(48.3 x 15.2 x 4.5 cm)
Weight: 5 lbs. (2 kg)
20 40 63 100 160 250 400 630 1K 1.6K 2.5K 4K 6.3K 10K 16K
CHANNEL 2
+12
PWR
-12
+12
0
PWR
-12
5143 South Main Street, Salt Lake City, UT, 84107
(801) 263-9053 FAX (801) 263-9068
rolls@rolls.com ï www.rolls.com
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