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8

18. Ground lift switch

4. INSTALLATION & CONNECTION

4.1 Mains Connection

4.2 Audio Connection

- Wiring Configuration

19. Fuse holder / Voltage selector

20. AC Inlet

This connector is meant for the connection of the supplied main cord.
Do not insert power cord into unit until voltage has been correctly set. Do not plug power cord into AC power
until voltage has been correctly set.

110-120V

220-240V

This is set for

110V AC TO 120V AC

operation

This is set for

220V AC TO 240V AC

operation

220-240V

110-120V

This switch is used to disconnect the signal ground from the mains and chassis earth. If it is determined that
the equalizer is the cause of hum or buzz in your system due to a ground loop, move this switch to the "lift"
position.

Please note the triangular markers on both sides of the fuse holder (see above figure). To change the voltage
pull the fuse holder out, rotate it 180 and push it back again. The operating voltage will be indicated by one
of the two triangular markers.

XLR Type Unbalanced

Pin3 (-)

Pin2 (+)

Pin1 ( )

(Linked to Pin1 manually,

)

XLR Type

alanced

B

Pin1 ( )

Pin2 (+)

Pin3 (-)

TRS Type Balanced

Tip

Ring

Sleeve

+

-

TRS Type Unbalanced

Tip

Ring

Sleeve

+

TS Type Unbalanced

Sleeve

Tip

+

NOTE:

While you can use any input connector with any output connector, only one set of these connectors is

to be used at one time, detail wiring and connection, please refer to 4.2 audio connection.

You must be sure of the Voltage available in your country because this is a Dual Voltage unit. Voltage opera-
tion can be changed through the fuse protecting the power supply but this operation must be performed by a
qualified engineer.

Either the 1/4" TRS phone jack or the XLR connector can be wired in balanced and unbalanced modes, which will
be determined by the actual application status, please wire your system as the following wiring examples:

17. RCA input and output connector

The RCA connector are unbalanced.

16. 1/4" TRS phone plug input and output connector

The 1/4" TRS connector are actively balanced and are used to input/output the signal.

Please ensure that the EQU MKII Series Graphic Equalizer is set to the correct supply voltage before plugging
the power cord into the wall outlet, use the same fuse as marked on the fuse holder at the AC power connection
socket.
The mains connection of the EQU MKII Series Graphic Equalizer is made by using the enclosed mains cord and
a standard IEC receptacle. It meets all of the international safety certification requirements.

The EQU MKII Series Graphic Equalizer presents with balanced XLR & 1/4" TRS and unbalanced RCA connectors,
and it can be interfaced by several ways to support a variety of applications without any signal loss. The EQU MK
II Series Graphic Equalizer can be used on a single instrument by connecting to a mixing console's main inserts,
or on an entire mix "in-line" between a mixing console's outputs and a power amplifier.

Summary of Contents for EQU MK Series

Page 1: ...5K 2 5K 6 3K 12 5K 25 40 80 160 400 1K 2K 5K 10K 63 125 315 800 250 630 1 6K 4K 3 15K 8K 16K 20K 20 12 31 Band Graphic Equalizer INPUT OUTPUT SIG CLIP SIG CLIP RANGE EQ HI PASS 6 12 ON 16KHz 40Hz LOW...

Page 2: ...to qualified service personnel only Do not perform any servicing other than those instructions contained within the User s Manual When required either blow off dust from the product or use a dry cloth...

Page 3: ...DIO 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 pro...

Page 4: ...INSTALLATION CONNECTION 8 4 1 Mains Connection 4 2 Audio Connection 4 3 Rack Mounting 5 APPLICATION 10 5 1 The Sound Frequency 5 2 Equalizer In Sound Reinforcement Systems Line Instrument Mixing Conso...

Page 5: ...lation in standard 19 rack space Manufactured Under QS9000 VDA6 1 certified management system 3 CONTROL ELEMENTS 3 1 The Front Panel 1 2 3 4 5 6 9 13 1 1 Thank you very much for expressing your confid...

Page 6: ...50 100 200 2 5K 6 3K 12 5K 25 40 80 160 2K 5K 10K 63 125 315 250 1 6K 4K 3 15K 8K 16K 20K INPUT LEVEL 500 1 25K 400 1K 800 630 Channel One Channel Two 0 12 12 0dB 12 12 6 6 SIG CLIP INPUT OUTPUT SIG...

Page 7: ...at 40Hz 12dB per octave The LED 12 indicator lights when the button is pressed and this filter is serving in the circuit 4 Low pass filter This button electronically inserts a filter into the signal...

Page 8: ...0VAC REPLACE FUSE WITH CORRECT TYPE ONLY Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk BALANCED UNBALANCED TIP PIN 2 RING PIN 3 SLEEVE PIN 1 INPUT BALANCED UNBALANCED TIP...

Page 9: ...ease refer to 4 2 audio connection You must be sure of the Voltage available in your country because this is a Dual Voltage unit Voltage opera tion can be changed through the fuse protecting the power...

Page 10: ...3 TIP RING SLEEVE TIP RING SLEEVE TIP SLEEVE SLEEVE RING TIP Unbalanced TIP RING SLEEVE Balanced 2 1 3 1 2 3 1 2 3 1 2 3 1 2 3 SLEEVE TIP SLEEVE RING TIP For these applications the EQU MKII Series Gra...

Page 11: ...in Viola Cello Double Bass Guitar KEYBOARDS Pianoforte Organ PERCUSSION Celesta Timpani Xylophone FREQUENCY 25 31 40 50 62 80 100 125 160 200 250 320 400 500 640 800 1K 1 3K1 6K 2K 2 5K 3 1K 4K 5K 6 2...

Page 12: ...raphic Equalizer can be used on an entire mix In line between a instrument outputs and a power amplifier and this is the basic application in the PA system to offer precise equalization control The EQ...

Page 13: ...fixed button type 20Hz to 50KHz at 1 5dBu 0 01 1KHz all VR at middle position 110dB 95V 120VAC 60Hz 220V 240VAC 50Hz 60Hz 2 31 band 1 3 octave ISO spacing 18W 2 31 band 1 3 octave ISO spacing 18W 2 3...

Page 14: ...LTO of 1 year from the purchase date if you have completed the Warranty Registration Card in time 3 3 During the warranty service may repair or replace this product at its own option at no charge to...

Page 15: ...altoproaudio com Tel 886 4 22313737 email alto altoproaudio com Fax 886 4 22346757 All rights reserved to ALTO All features and content might be changed prior notice Any photocopy translation or repr...

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