Rolls Stereo Equalizer EQ101 User Guide

LIMITED WARRANTY  
EQ101 10-BAND EQ  
This product is warranted to the original consumer purchaser to be  
free from defects in materials and workmanship under normal installation, use  
and service for a period of one (1) year from the date of purchase as shown on  
the purchaser’s receipt.  
• Compact Mono Equalization  
• Clean, quiet operation  
• Hard-wired bypass  
• 1/4" and RCA Inputs and Outputs  
The obligation of Rolls Corporation under this warranty shall be  
limited to repair or replacement (at our option), during the warranty period of  
any part which proves defective in material or workmanship under normal  
installation, use and service, provided the product is returned to Rolls  
Corporation, TRANSPORTATION CHARGES PREPAID. Products returned to  
us or to an authorized Service Center must be accompanied by a copy of the  
purchase receipt. In the absence of such purchase receipt, the warranty period  
shall be one (1) year from the date of manufacture.  
This warranty shall be invalid if the product is damaged as a result  
of defacement, misuse, abuse, neglect, accident, destruction or alteration of  
the serial number, improper electrical voltages or currents, repair, alteration or  
maintenance by any person or party other than our own service facility or an  
authorized Service Center, or any use violative of instructions furnished by us.  
This one-year warranty is in lieu of all expressed warranties,  
obligations or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS,  
OR LIABILITIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED  
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PAR-  
TICULAR PURPOSE, SHALL BE LIMITED IN DURATION TO THE ONE  
YEAR DURATION OF THIS WRITTEN LIMITED WARRANTY. Some  
states do not allow limitations on how long an implied warranty lasts, so the  
above limitation may not apply to you.  
IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL,  
INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS  
OR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, WHATSO-  
EVER. Some states do not allow the exclusion or limitation of special,  
incidental or consequential damages so the above limitation or exclusion may  
not apply to you. This warranty gives you specific legal rights, and you may  
also have other rights which vary from state to state.  
The EQ101 is for any application needing  
simple mono equalization.  
SPECIFICATIONS  
Input Impedance:  
Output Impedance:  
Max Input Level:  
Max Output Level:  
Center Freq:  
Boost/Cut Range:  
Bypass:  
50 K Nominal  
100 Ω  
+24 dBV  
+14 dB  
+/-5% Standard ISO  
+/- 12 dB  
Hard-wired  
Frequency Response:  
Dynamic Range:  
S/N Ratio:  
20 - 20 kHz +/- 1 dBV  
95 dB A Weighted  
85 dB  
+12 VDC 150 mA (center neg.)  
Adapter provided in the U.S.A.  
4 x 4.5 x 1.125 inches (WxHxD)  
1 lb.  
Power:  
Dimensions:  
Weight:  
Rolls Corporation  
Salt Lake City, UT  
4/99  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Thank you for your purchase of the EQ101 10-Band Graphic Equalizer.  
This unit is designed and manufactured to provide years of quality  
service. Please read this manual carefully for proper operation and care.  
OPERATION  
Shown below is an example of connection and operation of the EQ101.  
Signal processor or preamplifier  
To amplifier  
or mixer  
INSPECTION  
1. Unpack and Inspect the EQ101 package  
Be sure to examine the unit and the carton for any signs of damage that  
may have occurred during shipping. If obvious physical damage is  
noticed, contact the carrier immediately to make a damage claim.We  
suggest saving the shipping carton and packing materials for safely  
transporting the unit in the future.  
IN  
OUT  
IN  
OUT  
12 - 17  
VDC  
+
-
Graphic equalizers boost the  
indicated frequency. Low  
frequencies are equivalent to  
bass sounds and high fre-  
quencies equal treble sounds.  
BYPASS  
EQ  
2. Please complete the Warranty Registration Card and return it to the  
factory.  
PWR  
EQ101  
DESCRIPTION  
REAR PANEL  
+12  
0
IN: 1/4" TS unbalanced and RCA jacks for connection to input signal.  
This could be an instrument or the output of a signal processor.  
OUT: 1/4" TS unbalanced and RCA jacks for connection to an amplifier,  
or mixer.  
-12  
LVL 32 64 125 250 500 1K 2K 4K 8K 16K  
SCHEMATIC  
LVL:This control adjusts the overall level of the equalizer. Note that the  
center position is detented for easy location of unity gain.  
32 through 16K:These controls boost or cut the indicated frequency.  
When the slider is in the center (detented) position, the frequency is not  
effected.  
R
1
1
P
2
VCC  
P
P
1
3
0
0
K
S
S
K
4
5
6
0
6
5
7
C
.
1
U
2
B
C
2
J
R
3
0
6
8
C
8
2
R
1
2
3
.
3
U
F
R
1
3
C
A
J
A
C
K
0
0
K
4
5
6
0
BYPASS/EQ SWITCH: Selects whether the input signal is sent through  
the equalization circuitry (EQ) or is sent directly to the outputs (BY-  
PASS). Note that the EQ101 has a "hard-wire" bypass meaning that if  
there is no power connected to the unit, signal will still be present at the  
outputs.  
PWR: This LED indicates that power is applied to the EQ101.  
12 - 17 VDC: For connection to the AC adapter. Please use either the  
ROLLS PS27, or a proper adapter with 12 - 17 VDC, 150 mA, outside of  
barrel positive.  
P
1
0
0
0
K
K
S
S
K
2
3
2
R
7
8
P
K
F
BIAS  
R
4
2
2
5
1
C
.
3
U
2
A
P
1
W
1
0
0
K
C
C
.
7
K
1
C
C
4
6
0
3
9
1
.
5
U
F
R
1
4
BIAS  
R
1
5
0
0
K
P
P
4
5
VCC  
5
J
P
1
2
P
P
1
1
0
0
S
S
S
S
K
4
6
0
H
H
O
O
N
N
E
E
1
1
/
/
4
4
4
5
6
0
6
5
BIAS  
R
2
3
S
D
W
1
A
1
3
2
3
7
C
.
5
4
.
7
K
U
3
B
1
U
C
2
4
2
1
U
1
A
0
1
5
R
1
2
9
R
1
6
P
D
T
1UF  
R
1
7
R
2
4
1
8
K
0
K
0
0
K
4
5
6
0
0
K
K
2
3
J
P
BIAS  
1
C
.
7
U
3
A
S
D
W
1
B
4
2
7
P
F
C
3
0
C
P
1
0
2
5
C
2
5
0
0
8
2
8
.47  
R
1
6
0
0
K
R
1
9
6
VCC  
P
D
T
P
1
0
0
K
S
S
K
4
5
6
0
1
0
U
BIAS  
6
5
R
1
2
6
B
J
R
5
7
C
.
1
1
U
4
B
C
A
J
A
C
K
0
K
C
1
1
1
1
0
0
3
9
.27  
R
1
1
0
R
1
1
1
VCC  
P
7
0
0
K
4
5
6
0
P
1
0
0
K
S
S
K
4
5
6
0
6
5
2
BIAS  
7
1
C
.
1
3
U
4
A
U
1
3
0
0
2
2
1
C
P
4 .12  
R
1
2
0
0
K
IN  
OUT  
IN  
OUT  
12 - 17  
VDC  
R
1
1
3
8
9
VCC  
5
C
5
2
3
P
P
1
1
0
0
0
K
S
S
S
S
K
4
6
0
BIAS  
6
5
7
0
3
C
8
1
5
U
5
B
+
-
C
P
6
8
.
.
0
0
6
3
8
3
2
0
P
F
1
R
1
4
R
1
1
5
0
0
K
4
5
6
0
0
K
K
BYPASS  
EQ  
2
BIAS  
1
PWR  
C
4
1
7
U
5
A
I
N
9
-
1
5
V
A
C
1
/
V
D
C
3
D
VCC  
1
N
4
0
0
X
J
J
4
A
BIAS  
7
0
C
C
R
1
1
6
R
1
1
2
9
2
3
1
0
0
K
R
1
1
7
8
K
P
P
1
1
0
1
VCC  
5
R
2
2
7
C
4
2
6
BIAS  
P
P
1
1
0
0
0
0
K
K
S
S
S
S
K
4
6
0
R
4
2
8
C
1
2
K
EQ101  
7
U
6
5
.
7
K
1
0
0
0
U
F
P
D
C
7
C
2
1
9
U
6
B
D
L
2
0
.
0
1
5
7
0
P
F
R
1
8
D
S
G
1
0
0
K
+12  
0
R
1
2
0
BIAS  
K
4
5
6
0
2
ROLLS CORPORATION  
5143 South Main Street  
Salt Lake City, UT 84107  
C22  
1
C
1
2
1
U
6
A
3
2
0
P
F
R
1
2
1
.
0
0
8
2
10 BAND PRECISION EQ EQ101  
Document Number:  
Ba  
0
0
K
-12  
Rev.  
BIAS  
Size  
A
EQ101.SCH  
LVL 32 64 125 250 500 1K 2K 4K 8K 16K  
Date: 2-Apr-1999  
Sheet1 of  
1
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