Arrel Audio ML-116 User manual

ML–116
Mastering Monster Line
Five Band Parametric Equalizer
+Shelving
User Manual
Issue 0.2
REAL Innovation
F x2 F x2F x2 F x2F x2 F x2F x2 F x2F x2 F x2
CUT CUTCUT CUTCUT CUTCUT CUTCUT CUT
OFF OFFOFF OFFOFF OFFOFF OFFOFF OFF
BOOST BOOSTBOOST BOOSTBOOST BOOSTBOOST BOOSTBOOST BOOST
dB dBdB dBdB dBdB dB
Q QQ QQ QQ QQ Q
dB dB
0 00 00 00 00 010 1010 1010 1010 1010 10
1 11 11 11 1
11 999 99 99 99 9
3 33 33 33 337 77 77 77 77
4 44 44 44 44 46 66 66 66 66 6
2 22 22 22 2
3
22
7
888 88 88 88 8
555 55 55 5
55
120 120
100 100
300 300
1 1
4 4
20 20
80 80
400 400
1.5 1.5
6 6
30 30
240 240
8 840 40
160 160
500 500
60 60
200 200
600 600
3 3
2 2
800 800
2.5 2.5
12 12
10 10
50 50
0
0 0
0
0
0
0
0
0
0
0 00 00 00 00 0
SHELF SHELF
ON ON
+4 +4
+4 +4
+6 +6
+6 +6
00
0
0
0
0
+2 +2
+2 +2
+8 +8
+8 +8
+10 +10
+6+6 +10 +10
-4 -4
-4 -4
-6 -6
-6 -6
-2 -2
-2 -2
-8 -8
-8 -8
-10 -10
-6-6 -10 -10
HIHI
LO LO
BAND PASS BAND PASS
INPUT INPUT
PARAMETRIC PARAMETRIC
1515
10
10
25
25
30
30
4040
20
20
HI CUT HI CUT
LO CUT LO CUT
PHASE PHASE
OFF OFF
PEAK PEAK
± ±
± ±
5 dB 5 dB
5 dB 5 dB
Hz Hz
Monster
Hz HzHz HzKHz KHzKHz KHzHz Hz
MID LO MID LOMID MIDMID HI MID HIHI HILO LO
CHANNELCHANNEL
BA
EQ
ML - 116
AUDIO

ARREL Audio
ML-116 User Manual, Issue 0.1Page 2
SAFETY INSTRUCTIONS
WARNING
Always follow the precautions listed below to avoid any possibility of serious injury or even death from electrical shock, short-
circuiting, damages, fire or other hazards. These precautions include, but are not limited to, the following:
Do not expose the instrument to liquids and rain. Do not use it near water or in damp or wet conditions, or place
containers on it containing liquids. If any liquid seeps turn off the power and unplug the power cord from the AC outlet.
Do not put burning items, such as candles, on the unit. A burning item may fall over and cause a fire.
This instrument contains no user-serviceable parts. Do not open the instrument or attempt to disassemble or modify the
internal circuit.
Never insert or remove an electric plug with wet hands.
Check the electric plug periodically and remove any dirt or dust which may have accumulated on it.
Do not place the power cord near heat sources such as heaters or radiators, and do not excessively bend or otherwise
damage the cord, place heavy objects on it, or place it in a position where anyone could walk on, trip over, or roll
anything over it.
CAUTION
Always follow the precautions listed below to avoid any possibility of serious injury or even death from electrical shock, short-
circuiting, damages, fire or other hazards. These precautions include, but are not limited to, the following:
Do not connect the instrument to an electrical outlet using a multiple-connector. Doing so can result in lower sound quality, or
possibly cause overheating in the outlet itself.
When removing the electric plug from the instrument or an outlet, hold the plug itself and not the cord. Pulling by the cord can
damage it.
Remove the electric plug from the outlet when the instrument is not to be used for extended periods of time, or during
electrical storms.
Do not place the instrument in an unstable position where it might accidentally fall over.
Before moving the instrument, remove all connected cables.
When setting up the product, make sure that the AC outlet you are using is easily accessible. If some trouble or malfunction
occurs, immediately turn off the power switch and disconnect the plug from the outlet. Even when the power switch is turned
off, electricity is still flowing to the product at the minimum level.
When you are not using the product for a long time, make sure to unplug the power cord from the wall AC outlet.
Use only the stand/rack specified for the instrument. When attaching the stand or rack, use the provided screws only. Failure
to do so could cause damage to the internal components or result in the instrument falling over.
Information for Users on Collection and Disposal of Old Equipment
This special symbol on the products, packaging, and/or accompanying documents means that used electrical and electronic products
should not be mixed with general household waste.
For proper treatment, recovery and recycling of old products, please take them to applicable collection points, in accordance with your
national legislation and the Directives 2002/96/EC.
By disposing of these products correctly, you will help to save valuable resources and prevent any potential negative effects on human
health and the environment which could otherwise arise from inappropriate waste handling.
For more information about collection and recycling of old products, please contact your local municipality, your waste disposal service
or the point of sale where you purchased the items.
[For business users in the European Union]
If you wish to discard electrical and electronic equipment, please contact your dealer or supplier for further information.
[Information on Disposal in other Countries outside the European Union]
This symbol is only valid in the European Union. If you wish to discard these items, please contact your local authorities or dealer and
ask for the correct method of disposal.

ARREL Audio
ML-116 User Manual, Issue 0.1Page 3
ARREL Audio Contacts
ARREL Audio
Via A. Mondadori, 7
00128 Rome – Italy
Tel [phone]
Fax: [phone]
Info: [email protected]
Web: www.arrel-audio.com
Support: http://www.arrel-audio.com/support
ARREL Audio is continuously working to the improvement of its systems and related documentation.
In any case, we reserve the right to change the specifications without notice but in respect to the current legislation.
Disclaimer:
The information contained in this manual has been carefully checked and we believed is accurate at the time of publication.
In any case, we do not assume any responsibility for inaccuracies, errors or omissions nor any liability for any loss or damage resulting either
directly or indirectly from use of the information
contained in this manual.

ARREL Audio
ML-116 User Manual, Issue 0.1Page 4
TABLE OF CONTENTS
SAFETY INSTRUCTIONS ...................................................................................................2
ARREL Audio Contacts........................................................................................................3
TABLE OF CONTENTS .......................................................................................................4
INTRODUCTION .................................................................................................................5
Housing and Rack Mounting................................................................................................6
ML-116 Front Panel Controls and Operations......................................................................7
Input Section: gain Control ..............................................................................................7
input section: Phase switch ..............................................................................................7
input PARAMETRIC section: peak indicator.....................................................................7
.........................................................................................................................................8
input PARAMETRIC section: OFF SWITCH.....................................................................8
input PARAMETRIC section: ± 5  switch .....................................................................8
input BAND PASS section: LO-CUT subsonic filter switch...............................................8
input BAND PASS section: CUT OFF FREQUENCY ROTARY switch.............................8
input BAND PASS section: HI-CUT switch......................................................................8
eq section: general...........................................................................................................9
eq shelving section...........................................................................................................9
eq shelving section: emphasis/de-emphasis control knob (hi and low) ............................9
eq shelving section: shelf slope switch (hi and low) .........................................................9
eq shelving section: ON SWITCH ....................................................................................9
eq shelving section: ± 5  switch ................................................................................10
eq parametric section.....................................................................................................10
eq parametric section: q control knob ............................................................................10
eq parametric section: emphasis/de-emphasis control knob..........................................10
eq parametric section: emphasis/de-emphasis control switch........................................10
eq parametric section: central frequency control knob ................................................... 11
eq parametric section: F x 2 switch ................................................................................ 11
ML-116 Back Panel Controls and Operations ....................................................................12
Power supply switch.......................................................................................................12
bal/umbal switch.............................................................................................................12
APPENDIX A: External connections ..................................................................................13
APPENDIX B: Half Front Panel .........................................................................................14
APPENDIX C: Front Panel.................................................................................................15
APPENDIX D: Back Panel .................................................................................................16
APPENDIX E: ML-116 frequency response .......................................................................17
FIG.10 ML-116 Frequency response LO-CUT ...................................................................18
FIG.11 ML-116 Frequency response PARAM LOW 20 Hz.................................................19
FIG.12 ML-116 Frequency response PARAM MID - LO ....................................................20
TECHNICAL SPECIFICATIONS ........................................................................................25

ARREL Audio
ML-116 User Manual, Issue 0.1Page 5
INTRODUCTION
The ARREL Audio Mastering Monster EQ ML-116 is an advanced stereo equalizer built
to meet the versatility demands of professional recording and mastering engineers.
Special analog design techniques has been used to obtain a precise control of the sound
spectrum down to the minimum details.
The ML-116 features HI and LO cut filters and a 5 band parametric equalizer section +
high and low shelving filters. This advanced set of tools for the manipulation of the
frequency spectrum allow for unique filtering designs and for tuning of the structure of the
sound down to the smallest detail. The ML-116 is based on Livio Agentini’s patented
single-stage parallel parametric filters. This innovative phase coherent EQ design offers
the lowest distortion/noise specifications. No similar equipments are available on the
market.
The equalizer architecture provides a ±6 dB rotary knob with center detect controlling the
input level, a 50 KHz HI-cut filter and a subsonic filter with 6 selectable cut-off frequencies.
This unit has been designed for mastering applications where very precise settings are
required. To this purpose, both the parametric and the shelving sections are equipped by a
special button (±5 dB button) that halves the emphasis/de-emphasis range for super fine-
tunings. When this button is pressed, the pot’s entire 270° rotation is spread on a ±5 dB
range (rather than the default ±10 dB range) permitting and easy manual recall without the
use of stepped controls.
The filtering section offers low and high shelving filters with 3 different shelving slopes
selected by a switch. The emphasis/de-emphasis in the shelving section is controlled on a
±10 dB range by rotary knobs. A special button labeled “±5 dB” halves the emphasis/de-
emphasis range for super fine-tunings.
The Monster EQ provides 5 single-stage fully parametric bands. Each band has a Q
control and a switchable CUT/OFF/BOOST function that allows the use of the full knob
rotation for the Emphasis/De-Emphasis control in the 0/10 dB range. In the parametric
section the “±5 dB” button is used for super fine adjustments of the gain.
The F x 2 switches are used to multiply by 2 the frequency bands.
To obtain an outstanding audio quality, no servo amplifiers are used in the ML-116 so
IT IS NOT POSSIBLE TO UNBALANCE THE LINE OUT OF THE ML-116.
If you need an unbalanced connection for the line out there follow the instructions in
APPENDIX A.
Even though the ML-166 has been designed for professional mastering applications, it can
be used in any high profile recording, broadcast or live applications.

ARREL Audio
ML-116 User Manual, Issue 0.1Page 6
Housing and Rack Mounting
The ML-116 has been designed to be compliant with a 3U rack. No specific air
conditioning is required for the racks, provided that there is a free flow of air through the
rack from front to back and the temperature is maintained in the operating range.
Consequently the racks may be stacked.

ARREL Audio
ML-116 User Manual, Issue 0.1Page 7
Fig. 1 Single channel front panel
ML-116 Front Panel Controls and Operations
On the left part of the front panel for each channel, are allocated the controls of the input
section: INPUT, PARAMETRIC and BAND PASS then we have the sheving section and
the parametric section Fig. (1).
INPUT SECTION: GAIN CONTROL
The input section gain control knob is located in the INPUT section of each channel. A
continuous level control (center detect) in the ± 10 dB range is obtained by rotating the
corresponding knob (Fig. 2).
INPUT SECTION: PHASE SWITCH
The input signal phase can be inverted by pressing the PHASE button (LED indicator).
Push the button to invert the phase (LED on). Push again to switch off the phase inversion
(LED off) (Fig. 2).
INPUT PARAMETRIC SECTION: PEAK INDICATOR
A peak level detector (LED on) circuit indicates when the output level is -6 dB with respect
to the saturation level (Fig. 2). The LED on do not means saturation but must be
interpreted as a warning indicating you are reaching the saturation level.
2xF2xF2xF2xFF x2
TUCTUCTUCTUCCUT
FFOFFOFFOFFOOFF
TSOOBTSOOBTSOOBTSOOBBOOST
dB dB dB dB
QQQQQ
dB
0000 01010101010
1111
91 9999
3333 7777
4444 666646
2222
3
2
7
88888
5555
5
120
100
300
14
20 80
400 1.5 6
30
240
840 160 500
60
200
600
3
2
800
2.5
12
10
50
0 0
0 0
0
00000
SHELF
ON
+4
+4
+6
+6
0
0
0
+2
+2
+8
+8
+10
+6 +10
-4
-4
-6
-6
-2
-2
-8
-8
-10
-6 -10
HI
LO
BAND PASS
INPUT
PARAMETRIC
15
10
25
30
40
20
HI CUT
LO CUT
PHASE
OFF PEAK
±
±
5 dB
5 dB
Hz
Hz Hz KHz KHzHz
MID LO MID MID HI HILO
CHANNEL
A
AUDIO

ARREL Audio
ML-116 User Manual, Issue 0.1Page 8
Fig. 2 Front panel input section controls
INPUT PARAMETRIC SECTION: OFF SWITCH
The parametric section can be excluded by pressing the OFF button (LED indicator). Push
the button to exclude the parametric section (LED on). Push again to switch on the
parametric section of the equalizer (LED off) (Fig. 2).
INPUT PARAMETRIC SECTION: ± 5  SWITCH
The range of the parametric section emphasis/de-emphasis knobs can be changed to the
± 5 dB range by pressing the ± 5 dB button (LED indicator). Push the button to change to
the ± 5 dB range (LED on). Push again to switch off the ± 5 dB function (LED off) (Fig. 2).
INPUT BAND PASS SECTION: LO-CUT SUBSONIC FILTER SWITCH
The input signal can be filtered by a variable cut off frequency subsonic filter by pressing
the LO CUT button (LED indicator). Push the button to activate the subsonic filter (LED
on). Push again to deselect the subsonic filter (green LED off) (Fig. 2).
INPUT BAND PASS SECTION: CUT OFF FREQUENCY ROTARY SWITCH
The cut off frequency of the subsonic filter can be changed by the rotary switch. Six
possible frequencies are available (10, 15, 20, 25, 30, 40 Hz) (Fig. 2).
INPUT BAND PASS SECTION: HI-CUT SWITCH
The input signal can be filtered by a hi pass filter by pressing the HI CUT button (LED
indicator). Push the button to activate the hi pass filter (LED on). Push again to deselect
the hi pass filter (LED off) (Fig. 2).
SHELF
ON
+4
+4
+6
+6
0
0
0
+2
+2
+8
+8
+10
+6 +10
-4
-4
-6
-6
-2
-2
-8
-8
-10
-6 -10
HI
LO
BAND PASS
INPUT
PARAMETRIC
15
10
25
30
40
20
HI CUT
LO CUT
PHASE
OFF PEAK
±
±
5 dB
5 dB
Hz
SUBSONIC FILTER SWITCH
HI-CUT FILTER SWITCH
± 5 dB RANGE SWITCH
PARAMETRIC SECTION MUTE BUTTON
INPUT GAIN ROTARY KNOB
PHASE SWITCH
PEAK DETECTOR LED
SUBSONIC CUT-OFF FREQUENCY SELECTOR

ARREL Audio
ML-116 User Manual, Issue 0.1Page 9
Fig. 3 Shelf Section Controls
EQ SECTION: GENERAL
The filtering section of the equalizer is composed by two different sections: shelving
section and parametric section (Fig. 1).
EQ SHELVING SECTION
In the shelving section HI and LOW shelving filter are provided. Each control described in
this section is applicable to the two shelving filters (HI and LOW) of each channel of the
stereo equalizer (Fig. 3).
EQ SHELVING SECTION: EMPHASIS/DE-EMPHASIS CONTROL KNOB
(HI AND LOW)
The emphasis/de-emphasis control in the ± 10 dB range is obtained by rotating the
corresponding knob (Fig. 3). The range becomes ± 5 dB if the ± 5 dB function is on.
EQ SHELVING SECTION: SHELF SLOPE SWITCH (HI AND LOW)
The slopes of the HI and LO shelving filters can be changed by using the toggle switch
(Fig. 3). Three possible slopes are available.
EQ SHELVING SECTION: ON SWITCH
The shelving section can be activated by pressing the ON button (LED indicator). Push the
button to activate the shelving section (LED on). Push again to bypass the shelving section
of the equalizer (LED off) (Fig. 3).
SHELF
ON
+4
+4
+6
+6
0
0
+2
+2
+8
+8
+10
+10
-4
-4
-6
-6
-2
-2
-8
-8
-10
-10
HI
LO
±5 dB
HI SHELF SLOPE SWITCH
± 5 dB RANGE SWITCH
SHELF SECTION BY-PASS SWITCH
LO SHELF EMPHASIS/DE-EMPHASIS
LO SHELF SLOPE SWITCH
HI SHELF EMPHASIS/DE-EMPHASIS

ARREL Audio
ML-116 User Manual, Issue 0.1Page 10
EQ SHELVING SECTION: ± 5  SWITCH
The range of the shelving section emphasis/de-emphasis knobs can be changed to the ± 5
dB range by pressing the ± 5 dB button (LED indicator). Push the button to change to the ±
5 dB range (yellow LED on). Push again to switch off the ± 5 dB function (LED off) (Fig.
3).
EQ PARAMETRIC SECTION
Each control described in the EQ section is applicable to the five bands (LO, MID LO, MID,
MID HI, HI) of each channel of the stereo equalizer.
EQ PARAMETRIC SECTION: Q CONTROL KNOB
The Q value is changed by rotating the corresponding knob (Fig. 4).
EQ PARAMETRIC SECTION: EMPHASIS/DE-EMPHASIS CONTROL
KNOB
The emphasis/de-emphasis control in the ± 10 dB range is obtained by rotating the
corresponding knob (Fig. 4). The range becomes ± 5 dB if the ± 5 dB function is on.
This knob works as frequency boost if the corresponding CUT-OFF-BOOST switch is in
the BOOST position (switch lever green illuminated). This knob works as frequency cut if
the corresponding CUT-OFF-BOOST switch is in the CUT position (switch lever red
illuminated).
EQ PARAMETRIC SECTION: EMPHASIS/DE-EMPHASIS CONTROL
SWITCH
This is a lever illuminated toggle switch. Frequency boost is selected if the corresponding
CUT-OFF-BOOST switch is in the BOOST position (switch lever green illuminated).
Frequency cut is obtained if the corresponding CUT-OFF-BOOST switch is in the CUT
position (switch lever red illuminated). If the switch is not illuminated, the off function is
selected so the emphasis/de-emphasis knob is not active. This function is important in
order to avoid accidental operations Fig. 4.

ARREL Audio
ML-116 User Manual, Issue 0.1Page 11
Fig. 4 Parametric Section Controls
EQ PARAMETRIC SECTION: CENTRAL FREQUENCY CONTROL KNOB
Turn the frequency knob in order to select the required central frequency value (Fig. 4).
EQ PARAMETRIC SECTION: F X 2 SWITCH
This button selects the F x 2 function. Push the button to activate the F x 2 function (LED
on). Push again to deselect the F x 2 function (LED off) (Fig. 4).
This function permits to obtain ten different frequency bands.
F x2F x2
CUTCUT
OFFOFF
BOOSTBOOST
dB
QQ
dB
0010 10
1
91 9
37
4466
2
3
2
7
88
5
5
120
100
20 80
30
240
40 160
60
200
50
0 0
00
HzHz
MID LOLO
EMPHASIS/DE-EMPHASIS
CONTROL KNOB
CUT-OFF-BOOST SWITCH
CENTRAL FREQUENCY
CONTROL KNOB
F x 2 SWITCH
Q CONTROL KNOB

ARREL Audio
ML-116 User Manual, Issue 0.1Page 12
ML-116 Back Panel Controls and Operations
POWER SUPPLY SWITCH
The ML-116 power-on switch is located in the left part of the back panel. The power on
state is indicated by the illumination of the switch (Fig. 4).
BAL/UMBAL SWITCH
On the back panel of the ML116 each output is equipped with a Bal/Unbal switch (Fig. 5).
Fig. 5 Back panel
INPUTOUTPUT INPUTOUTPUT
UNBAL
-6 dB
UNBAL
-6 dB
CHANNELCHANNEL AB
GROUND
PHASE +
PHASE -
1
2
3

ARREL Audio
ML-116 User Manual, Issue 0.1Page 13
APPENDIX A: External connections
FIG. 6 ML-116 external connections
WIRING ML - 116
MAIN OUTPUT
LINE INPUT
XLR
XLR
On the back
On the back
1
1
2
2
3
3
1 = Ground
1 = Ground
2 = PHASE +
2 = PHASE +
3 = PHASE -
3 = PHASE -
Balanced line only - Switch for unbalanced lines
Balanced line - It is possible connect unbalanced lines
AUDIO

ARREL Audio
ML-116 User Manual, Issue 0.1Page 14
APPENDIX B: Half Front Panel
FIG. 7 ML-116 half front Panel
2xF2xF2xF2xF
F x2
TUCTUCTUCT
U
CCUT
FFOFFOFFOFFOOFF
TSOOBTSOOBTSOOBTSOOBBOOST
dB dB dB dB
QQQQQ
dB
000
0010101010
1
0
1111
91 9999
3333 7777
4
4
4
4 6
6
6
6
46
2222
3
2
7
88888
5
5
5
5
5
120
100
300
14
20 80
400 1.5 6
30
240
840 160 500
60
200
600
3
2
800
2.5
12
10
50
0
0
0
0
0
00000
SHELF
ON
+4
+4
+6
+6
0
0
0
+2
+2
+8 +8
+10
+6 +10
-4 -4
-6
-6
-2 -2
-8
-8
-10
-6 -10
HI
LO
BAND PASS
INPUT
PARAMETRIC
15
10
25
30
40
20
HI CUT
LO CUT
PHASE
OFF PEAK
±
±
5 dB
5 dB
Hz
Hz Hz KHz KHzHz
MID LO MID MID HI HILO
CHANNEL
A
AUDIO

ARREL Audio
ML-116 User Manual, Issue 0.1Page 15
APPENDIX C: Front Panel
FIG.8 ML-116 front Panel
F x2 F x2
F x2 F x2F x2 F x2F x2 F x2F x2 F x2
CUT CUT
CUT CUT
CUT CUT
CUT CUT
CUT CUT
OFF OFFOFF OFF
OFF OFF
OFF OFFOFF OFF
BOOST BOOST
BOOST BOOST
BOOST BOOST
BOOST BOOSTBOOST BOOST
dB dBdB dBdB dBdB dB
Q QQ QQ QQ QQ Q
dB dB
0 00 00 00 00 010 1010 1010 1010 1010 10
1 11 11 11 1
11
999 99 99 99 9
3 33 33 3
33
3
7 77 7
77
777
444 44 44 4
4 46 6
6 66 66 6
66
2 2
222 22 2
3
22
7
88
8 88 88 88 8
555 55 5
5 5
55
120 120
100 100
300 300
11
4 4
20 20
80 80
400 400
1.5 1.5
6 6
30 30
240 240
8840 40
160 160
500 500
60 60
200 200
600 600
3 3
2 2
800 800
2.5 2.5
12 12
10 10
50 50
0
0
0
0
0
0
0
0
0
0
0 00 00 00 00 0
SHELF SHELF
ON ON
+4 +4
+4 +4
+6 +6 +6 +6
00
0
0
0 0
+2 +2
+2 +2
+8 +8
+8 +8
+10 +10
+6+6 +10 +10
-4 -4 -4 -4
-6 -6
-6 -6
-2 -2 -2 -2
-8 -8 -8 -8
-10 -10
-6
-6 -10 -10
HIHI
LO LO
BAND PASS BAND PASS
INPUT INPUT
PARAMETRIC PARAMETRIC
1515
10
10
25
25
30
30
4040
20
20
HI CUT HI CUT
LO CUT LO CUT
PHASE PHASE
OFF OFF
PEAK PEAK
± ±
± ±
5 dB 5 dB
5 dB 5 dB
Hz Hz
Monster
Hz HzHz HzKHz KHzKHz KHzHz Hz
MID LO MID LOMID MIDMID HI MID HIHI HILO LO
CHANNEL
CHANNEL
BA
EQ
ML - 116
AUDIO

ARREL Audio
ML-116 User Manual, Issue 0.1Page 16
APPENDIX D: Back Panel
FIG.9 ML-116 Back Panel
FUSE 600 mA
50 / 60 Hz - 30 W.
MAINS IN 110/220 V AC
INPUTOUTPUT INPUTOUTPUT
UNBAL
-6 dB
UNBAL
-6 dB
CHANNELCHANNEL
AB
GROUND
PHASE +
PHASE -
1 2 3
220
FUSE
OFF
ON
CAUTION
TO REDUCE THE RISK OF FIRE OR EJECTRIC
SHOCK DO NOT EXPOSE THIS EQUIPMENT
TO RAIN OR MOISTURE
WARNING
RISK OF ELECTRIC SHOCK
DO NOT OPEN
DESIGNED AND
MANUFACTURED
IN ITALY
ML 116/117
MONSTER EQ
AUDIO

ARREL Audio
ML-116 User Manual, Issue 0.1Page 17
APPENDIX E: ML-116 frequency response
FIG.10 ML-116 Frequency response HI-CUT
10 100 1.000 10.000 100.000
-16
-14
-12
-10
-8
-6
-4 -2
0
2
Frequency (Hz)
Amplitude (dB)
ARREL AUDIO ML-116 MONSTER EQUALIZER HI-CUT

ARREL Audio
ML-116 User Manual, Issue 0.1Page 18
FIG.11 ML-116 Frequency response LO-CUT
10 100 1.000 10.000 100.000
-30 -25 -20 -15
-10
-5
0
5
Frequency (Hz)
Amplitude (dB)
ARREL AUDIO ML-116 MONSTER EQUALIZER LO-CUT

ARREL Audio
ML-116 User Manual, Issue 0.1Page 19
FIG.12 ML-116 Frequency response PARAM LOW 20 Hz
10 100 1.000 10.000 100.000
-15 -10
-5
0
5
10
15
Frequency (Hz)
Amplitude (dB)
ARREL AUDIO ML-116 MONSTER EQUALIZER PARAMETRIC LOW BAND 20 HZ

ARREL Audio
ML-116 User Manual, Issue 0.1Page 20
FIG.13 ML-116 Frequency response PARAM MID - LO
10 100 1.000 10.000 100.000
-15 -10
-5
0
5
10
15
Frequency (Hz)
Amplitude (dB)
ARREL AUDIO ML-116 MONSTER EQ PARAM MID-LO