Nilfisk EQU MKII User Manual
User's Manual
15/31 Band
EQU MK Series
31 Band Graphic Equalizer
R
LTO
31.5 50 100 200 500 1.25K 2.5K 6.3K 12.5K25 40 80 160 400 1K 2K 5K 10K63 125 315 800250 630 1.6K 4K3.15K 8K 16K 20K20
Graphic Equalizer
SIG
6
RANGE
POWEROUTPUT
INPUT
CLIP
40Hz
12
PASS
OUTPUT
LTO
R
OUTPUT
SIG
CLIP
16KHz
LOW
PASS
EQU131VU
GRAPHIC MONO
31 BAND EQUALIZER
/VU METER
ON
EQHI
+12
+12
+6
0
0dB
-6
-12
-12
INPUT
LEVEL
R
LTO
www.altoproaudio.com
Version 1.2 August 2004
English
SAFETY RELATED SYMBOLS
CAUTION
RISK OFELECTRIC SHOCK
DO NOTOPEN
This symbol, wherever used, alerts you to the presence of un-insulated and dangerous voltages within the product enclosure. These are voltages that
may be sufficient to constitute the risk of electric
shock or death.
This symbol, wherever used, alerts you to important operating and maintenance instructions.
Please read.
Protective Ground Terminal
AC mains (Alternating Current)
Hazardous Live Terminal
ON: Denotes the product is turned on.
OFF: Denotes the product is turned off.
WARNING
Describes precautions that should be observed to
prevent the possibility of death or injury to the user.
CAUTION
Describes precautions that should be observed to
prevent damage to the product.
WARNING
Power Supply
Ensure that the mains source voltage (AC outlet) matches
the voltage rating of the product. Failure to do so could
result in damage to the product and possibly the user.
Unplug the product before electrical storms occur and
when unused for long periods of time to reduce the risk of
electric shock or fire.
External Connection
Always use proper ready-made insulated mains
cabling (power cord). Failure to do so could result
in shock/death or fire. If in doubt, seek advice from
a registered electrician.
the recommended fuse type as indicated in this manual.
Do not short-circuit the fuse holder. Before replacing the
fuse, make sure that the product is OFF and disconnected
from the AC outlet.
Protective Ground
Before turning the product ON, make sure that it is
connected to Ground. This is to prevent the risk of
electric shock.
Never cut internal or external Ground wires. Likewise,
never remove Ground wiring from the Protective Ground
Terminal.
Operating Conditions
Always install in accordance with the manufacturer's
instructions.
To avoid the risk of electric shock and damage, do not
subject this product to any liquid/rain or moisture. Do
not use this product when in close proximity to water.
Do not install this product near any direct heat source.
Do not block areas of ventilation. Failure to do so could
result in fire.
Keep product away from naked flames.
IMPORTANT SAFETY INSTRUCTIONS
Read these instructions
Follow all instructions
Keep these instructions. Do not discard.
Heed all warnings.
Only use attachments/accessories specified by the
manufacturer.
Power Cord and Plug
Do not tamper with the power cord or plug. These are
designed for your safety.
Do not remove Ground connections!
If the plug does not fit your AC outlet seek advice from a
qualified electrician.
Protect the power cord and plug from any physical
stress to avoid risk of electric shock.
Do not place heavy objects on the power cord. This
could cause electric shock or fire.
Do Not Remove Any Covers
Within the product are areas where high voltages may
present. To reduce the risk of electric shock do not remove
any covers unless the AC mains power cord is removed.
Covers should be removed by qualified service
personnel only.
No user serviceable parts inside.
Fuse
To prevent fire and damage to the product, use only
Cleaning
When required, either blow off dust from the product or
use a dry cloth.
Do not use any solvents such as Benzol or Alcohol.
For safety, keep product clean and free from dust.
Servicing
Refer all servicing to qualified service personnel only. Do
not perform any servicing other than those instructions
contained within the User's Manual.
1
Preface
Dear Customer:
Thanks for choosing LTO Graphic Equalizer and thanks for choosing one of the results of LTO AUDIO TEAM job
and researches.
For our LTO AUDIO TEAM, music and sound are more than a job...are first of all passion and let us say...our obse
-ssion!
We have been designing professional audio products for a long time in cooperation with some of the major brands in
the world in the audio field.
The LTO line presents unparalleled analogue and digital products made by Musicians for Musicians in our R&D
Centres in Italy, Netherlands, United Kingdom and Taiwan. The core of our digital audio products is a sophisticated
DSP (Digital sound processor) and a large range of state of the art algorithms which have been developed by our
Software Team for the last 7 years.
Because we are convinced you are the most important member of LTO AUDIO TEAM and the one confirming the
quality of our job, we would like to share with you our work and our dreams, pay attention to your suggestions and
your comments.
Following this idea we create our products and we will create the new ones! From our side, we guarantee you and we
will guarantee you also in future the best quality, and the best fruits of our continuous researches and the best prices.
Our LTO Graphic Equalizer is the result of many hours of listening and tests involving common people, area experts,
musicians and technicians.
The results of this effort is a high-end Graphic Equalizer which will provide a permanent precise equalization to the
musician, performer, studio engineer and sound contractor.
Nothing else to add, but that we would like to thank all the people that made the LTO Graphic Equalizer a reality
available to our customers, thank our designers and all LTO staff, there to make possible the realization of products
containing our idea of music and sound and there to support you, our customers, in the best way, conscious that you
are our best richness.
Thank you very much.
LTO AUDIO TEAM
2
TABLE OF CONTENT
1. INTRODUCTION ...................................................................................................................................4
2. FEATURE LIST .....................................................................................................................................4
3. CONTROL ELEMENTS ............................................................................... ..........................................4
3.1 The Front Panel
3.2 The Rear Panel
4. INSTALLATION & CONNECTION .......................................................................................................8
4.1 Mains Connection
4.2 Audio Connection
- Wiring Configuration
- In Line Connection
- Insert Points Connection
4.3 Rack Mounting
5. APPLICATION ............................................................................................. ..........................................10
5.1 The Sound Frequency
5.2 Equalizer In Sound Reinforcement Systems
- Line Instrument
- Mixing Console
6. TECHNICAL SPECIFICATIONS ..........................................................................................................12
7. WARRANTY ........... ............................................................................................ ...................................13
3
-IIEQU215 Front PanelMK
IIEQU131- Front PanelMK
EQU215TWIN Front Panel-IIMK
Dual 15 Band Graphic Equalizer
R
LTO
63 250 1.6K 6.3K40 160 1K 4K25 100 630400 2.5K 10K 16K 63 250 1.6K 6.3K40 160 1K 4K25 100 630400 2.5K 10K 16K
6
Channel One ChannelTwo
1
INPUT
OUTPUT
+6
+12
+12
SIG
SIG
CLIP
CLIP
40Hz
0
-6
-12
INPUT
LEVEL
2
16KHz
0dB
LOW-PASS
HI-PASS
-12
ON
6
12
EQ
RANGE
1
INPUT
INPUT
LEVEL
OUTPUT
+12
SIG
SIG
CLIP
CLIP
EQU215TWIN
40Hz
16KHz
0dB
HI-PASS
-12
RANGE
GRAPHIC STEREO
15 BAND EQUALIZER
LOW-PASS
ON
6
12
EQ
+6
+12
0
-6
-12
2
4
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