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 Ω 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
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
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