Nilfisk EQU MKII User Manual

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User's Manual

15/31 Band

EQU MK Series

31 Band Graphic Equalizer

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

RANGE

POWEROUTPUT

INPUT

CLIP

40Hz

PASS

OUTPUT

LTO

OUTPUT

SIG

CLIP

16KHz

LOW PASS

EQU131VU

GRAPHIC MONO

31 BAND EQUALIZER

/VU METER

EQHI

+12

0dB

-6

-12

INPUT LEVEL

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.

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

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

-IIEQU215 Front PanelMK

IIEQU131- Front PanelMK

EQU215TWIN Front Panel-IIMK

Dual 15 Band Graphic Equalizer

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

Channel One ChannelTwo

INPUT

OUTPUT

+12

SIG

CLIP

40Hz

-6

-12

INPUT LEVEL

16KHz

0dB

LOW-PASS

HI-PASS

-12

RANGE

INPUT

LEVEL

OUTPUT

+12

SIG

CLIP

EQU215TWIN

40Hz

16KHz

0dB

HI-PASS

-12

RANGE

GRAPHIC STEREO

15 BAND EQUALIZER

LOW-PASS

+12

-6

-12

31 Band Graphic Equalizer

+12

OUTPUT

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

20 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 20K

LTO

20 31.5 50 100 200 2.5K 6.3K 12.5K25 40

160

Dual 31 Band Graphic Equalizer

800

500 1.25K400

630

3.15K

0dB

INPUT

OUTPUT

SIG

CLIP

40Hz

16KHz

-12

+12

0dB

-12

+12

0dB

-12

RANGE

INPUT OUTPUT

SIG

CLIP

40Hz

LOW-PASS

HI-PASS

RANGE

INPUT OUTPUT

SIG

CLIP

40Hz

LOW-PASS

HI-PASS

RANGE

LOW

PASS

OUTPUT

SIG

CLIP

16KHz

OUTPUT

SIG

CLIP

16KHz

-6

-12

INPUT LEVEL

+12

-6

-12

Channel One

Channel Two

+12

-6

-12

10K63 125 315250 1.6K

16K 20K

INPUT LEVEL

EQU131VU

GRAPHIC MONO

31 BAND EQUALIZER

/VU METER

EQHI

EQU231VU

GRAPHIC STEREO

31 BAND EQUALIZER

/VU METER

20 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 20K

Dual 31 Band Graphic Equalizer

20 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 20K

LTO

20 31.5 50 100 200 2.5K 6.3K 12.5K25 40

160

Dual 31 Band Graphic Equalizer

800

500 1.25K400

630

3.15K

INPUT

LEVEL

+12

0dB

-12

Channel One

Channel Two

+12

0dB

-12

INPUT

LEVEL

INPUT

LEVEL

+12

INPUT

SIG

INPUT LEVEL

CLIP

0dB

RANGE

-12

+12

INPUT

SIG

CLIP

0dB

RANGE

-12

-6

-12

Channel One

Channel Two

+12

-6

10K63 125 315250 1.6K

16K 20K

-12

40Hz

HI-PASS

40Hz

SIG

16KHz

LOW-PASS

SIG

16KHz

OUTPUT

CLIP

EQLOW-PASSHI-PASS

EQU231TWIN

GRAPHIC STEREO

31 BAND EQUALIZER

2.Level control

This control sets the input signal level to the equalizer. Its "0dB" position is unity gain (no boost or attenuation). If the clip LED (5) is light continuously, turndown this control until it only flickers occasionally.

3.High pass filter

This button electronically inserts a filter into the signal path, which cuts the low frequencies 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 path, which cuts the high frequencies at 16KHz (12dB per octave). The LED (13) indicator lights when the button is pressed and this filter is serving in the circuit.

5.Clip LED

This LED will light when any section of the equalizer is within 5 dB of clipping. Occasional flickering of this clip LED is acceptable, but if it remains on continuously, you should turn down the level control or reduce the output level of the preceding component to avoid audible distortion.

6.Signal LED

This green LED will light when any signal appears at input/output stage.

7.EQ switch

This switch inserts or removes the equalizer to channel path. If press this switch, the EQ LED (7) will be illuminated, which means it is in EQ mode. When release this switch, the input signal is routed directly to the output jacks. which means it is in bypass mode.

8.EQ LED

When this LED lights, it is in EQ mode.

9.Range switch

This button switches the gain range of the filter potentiometer between 6dB and 12dB.

10.Filter range indicator

When the 6dB range is selected, green LED will light. When the 12dB range is selected, red LED will light.

11.VU meter

This VU meter is used to indicate the output level.

12.High pass LED

When the High pass filter (40Hz/12dB) is in active, this LED will light.

13.Low pass LED

When the Low pass filter (16KHz/12dB) is in active, this LED will light.

3.2 The Rear Panel

IIEQU131- PanelMK Rear

POWER

AC INPUT

95-120V /210-240V 60-50Hz

MODEL

SERIAL

OFF

RatedPower Consumption 9W

FUSE:

210-240V:T100mAL 250VAC 95-120V:T160mAL 250VAC REPLACEFUSE WITH CORRECT TYPEONLY

Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk

LIFT GND

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

OUTPUT

BALANCEDUNBALANCED

16 15

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

INPUT

PUSH

NEW TIDE

BALANCEDUNBALANCED

1516

MKEQU215 Rear Panel-II

AC INPUT

95-120V /210-240V 60-50Hz RatedPower Consumption 9W

OFF

POWER

FUSE:

210-240V:T100mAL 250VAC 95-120V:T160mAL 250VAC REPLACEFUSE WITH CORRECT TYPEONLY

Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk

LIFT GND

1820

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

OUTPUT

BALANCEDUNBALANCED

17 16 15

CHANNEL 2

17 16 15

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

INPUT

PUSH

NEW TIDE

BALANCEDUNBALANCED

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

OUTPUT

CHANNEL 1

BALANCEDUNBALANCED

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

INPUT

PUSH

NEW TIDE

BALANCEDUNBALANCED

MKEQU215TWIN Rear Panel-II

OFF

POWER

AC INPUT

95-120V /210-240V 60-50Hz RatedPower Consumption 9W

FUSE:

210-240V:T100mAL 250VAC 95-120V:T160mAL 250VAC REPLACEFUSE WITH CORRECT TYPEONLY

Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk

MODEL

SERIAL

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

OUTPUT

LIFT GND

CHANNEL 2

BALANCEDUNBALANCED

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

INPUT

PUSH

NEW TIDE

BALANCEDUNBALANCED

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

OUTPUT

CHANNEL 1

BALANCEDUNBALANCED

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

INPUT

PUSH

NEW TIDE

BALANCEDUNBALANCED

EQU131VU Rear PanelMK-II

AC INPUT

95-120V /210-240V 60-50Hz RatedPower Consumption 9W

FUSE:

210-240V:T100mAL 250VAC 95-120V:T160mAL 250VAC REPLACEFUSE WITH CORRECT TYPEONLY

Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk

MODEL

SERIAL

POWER

OFF

EQU231VU /EQU231 Rear PanelMK MK-II - II

AC INPUT

95-120V /210-240V 60-50Hz RatedPower Consumption 18W

FUSE:

210-240V:T100mAL 250VAC 95-120V:T200mAL 250VAC REPLACEFUSE WITH CORRECT TYPEONLY

Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk

MODEL

SERIAL

POWER

OFF

17 16 15 17 16 15

LIFT GND

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

OUTPUT

INPUT

PUSH

NEW TIDE

BALANCEDUNBALANCED

PUSH

NEW TIDE

BALANCEDUNBALANCED

PUSH

NEW TIDE

BALANCEDUNBALANCED

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

BALANCEDUNBALANCED

CHANNEL 1

CHANNEL 2

TIP/PIN2 RING/PIN3 SLEEVE/PIN1

17 16 15

MKEQU231TWIN Rear Panel-II

20 18

14.Power switch

This is used to switch the equalizer on and off. The appliance would be turned on when the power switch to be set to the on-position, and it would be turned off when the switch be set to the off-position.

15. XLR input and output connector

The XLR connector are actively balanced and are used to input/output the signal.

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.

17. RCA input and output connector

The RCA connector are unbalanced.

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.

18. Ground lift switch

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.

19. Fuse holder / Voltage selector

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

110-120V

220-240V

110-120V

This is set for

110V AC TO 120V AC

operation

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.

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.

4. INSTALLATION & CONNECTION

4.1 Mains Connection

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.

4.2 Audio Connection

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.

This is set for

220V AC TO 240V AC

operation

- Wiring Configuration

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:

Tip

Sleeve

TS Type Unbalanced

Ring

TRS Type Balanced

Tip

Sleeve

Ring

TRS Type Unbalanced

Tip

Sleeve

Pin2 (+)

Pin3 (-)

(Linked to Pin1 manually, )

Pin1 ( )

XLR Type Unbalanced

Pin3 (-)

Pin2 (+)

Pin1 ( )

XLR Type alancedB

- In Line Connection

- Insert Points Connection

1/4" TRS insert

Ring

Tip

Sleeve

4.3 Rack Mounting

Send

Return

Insert Leads

TIPRING SLEEVE

SLEEVETIP

5. APPLICATION

5.1 The Sound Frequency

In recording studios as well as stage or radio plays, the EQU MKII Series Graphic Equalizer will be your valuable sound tool to modify the frequency "contour" of a sound. But first of all, you should clarify the typical frequency of each instrument and voice, so that you can obtain nice results in terms of sound characterization. The tables on the following pages will give you an idea of specific frequencies and their acoustic significance.

Typical Frequency of Each Instrument and Voice

Mid C

CDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABC

25 31 4 0 5 0 6 2 8 0 100 12 5 160 200 25 0 320 4 00 500 640 80 0 1K 1. 3K 1.6K 2K 2.5K 3.1K 4K 5K 6.2 K 8K 10K 13K 16K 20 K

25 31 40 50 6280100 125 160 200 250 320 400 500 640

800

1.3K1.6K2K2.5K 3.1K

6.2K8K10K 13K 16K 20K

Human hearing range

VOCAL Soprano

Contralto

Baritone

Bass

WOODWIND

Piccolo

Flute

Oboe

Clarinet in B flat or A

Clarinet in E flat

Bass Clarinet

Basset Hom

Cor Anglais

Bassoon

Double Bassoon

BRASS

Soprano Saxophone

Alto Saxophone

Tenor Saxophone

Baritone Saxophone

Bass Saxophone

Trumpet in C

Trumpet in F

Alto Trombone

Tenor Trombone

Bass Trombone

Tuba

Valve Hom

STRINGS

Violin

Viola

Cello

Double Bass

Guitar

KEYBOARDS

Pianoforte

Organ

PERCUSSION

Celesta

Timpani

Xylophone

FREQUENCY

5.2 Equalizer In Sound Reinforcement Systems

The EQU MKII Series Graphic Equalizers can be used in the sound reinforcement systems to:

Eliminate unwanted sounds, such as the 60Hz Hum noise. Shape the sound by changing the frequency response of the track. Special effects like telephone sounds are done by cutting off the low end to 200Hz and the high end to 6KHz. Allow you to modify the sound of the instrument if put EQU MKII Series Equalizer in line with a musical instrument. you can brighten the sound, and body to a thin sounding instrument, or you can give the sound a totally different character. Fix a track that does not sound quite right, put the EQU MKII Series Equalizer in an effects send and return it to the mix bus.

The following connection is probably most common field of application:

- Line Instrument

The EQU MKII Series Graphic 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.

CH1 IN

CH2 IN

From line instrument outputs

20 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 20K

LTO

20 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 20K

Dual 31 Band Graphic Equalizer

CH1 OUT

CH2 OUT

To power amplifier inputs

INPUT

INPUT OUTPUT

LEVEL

+12

SIG

CLIP

126

0dB

-6

-12

ChannelOne

ChannelTwo

INPUT OUTPUT

+12

SIG

CLIP

0dB

126

-6

-12

INPUT LEVEL

40Hz 16KHz

PASS

SIG

CLIP

EQRANGE

LOW PASS

SIG

LOW PASS

EQU231

GRAPHICSTEREO

31BAND EQUALIZER

CLIP

ON40Hz 16KHz

EQRANGE

- Mixing Console

The EQU MKII Series Graphic Equalizer can also be used on a single instrument by connecting to a mixing console's main inserts, esp for those consoles without built-in equalization circuitry.

Main Inserts

MIXING CONSOLE

20 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 20K

LTO

20 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 20K

CH1 IN

Dual 31 Band Graphic Equalizer

CH1 OUT

CH2 IN

CH2 OUT

ChannelOne

ChannelTwo

INPUT

INPUT OUTPUT

LEVEL

+12

SIG

CLIP

126

PASS

INPUT OUTPUT

SIG

CLIP

126

40Hz 16KHz

PASS

ON40Hz 16KHz

EQRANGE

LOW PASS

SIG

CLIP

EQRANGE

LOW

PASS

0dB

-6

-12

+12

0dB

-6

-12

INPUT LEVEL

EQU231

GRAPHICSTEREO

31BAND EQUALIZER

NOTE: Mono/Stereo Application

a. For mono application, please use the EQU131- II, EQU131VU- II mono Graphic Equalizer.MK MK b. For stereo application, please use the EQU215- II, EQU215TWIN- II, EQU231- II, EQU231VU

- II or EQU231TWIN- II stereo Graphic Equalizer, either of the two channels can be used as L/R

MK MK

MK MK MK

input & output.

6. TECHNICAL SPECIFICATIONS

Type

EQU231VU-MKII

EQU231-MKII EQU231TWIN-MKII EQU131VU-MKII EQU131-MKII EQU215-MKII EQU215TWIN-MKII

2 31 Band: 1/3 octave, ISO spacing (2H series) 2 31 Band: 1/3 octave, ISO spacing (2H series) 2 15 Band: 2/3 octave, ISO spacing (3H series) 1 31 Band: 1/3 octave, ISO spacing (2H series) 1 31 Band: 1/3 octave, ISO spacing (1H series) 2 15 Band: 1/3 octave, ISO spacing (1H series) 2 31 Band: 1/3 octave, ISO spacing (2H series)

Slider travel

Range

Input connections

Input impedance

Maximum input level

Output connections

Input impedance

Output impedance

High pass filter

Low pass filter

20mm with positive centre detente (EQU231-MKII/EQU231VU-MKII/EQU131-MKII/EQU215-MKII) 45mm with positive centre detente (only for EQU231TWIN-MK II) 60mm with positive centre detente (EQU131VU-MKII/EQU215TWIN-MKII)

6dB or 12dB selectable

Active balanced XLR and 1/4" TRS

Unbalanced RCA

20k (bal.) 15k (unbal.)

14dBu

Active balanced XLR and 1/4" TRS

Unbalanced RCA

20kohm (bal)

15kohm (unbal)

600

40Hz (12dB/oct) fixed-button type .

16KHz (12dB/oct) fixed-button type

Frequency response

THD+N%

S / N ratio

Power supply

Consumption

EQU231VU-MKII EQU231-MKII EQU231TWIN-MKII EQU131VU-MKII EQU131-MKII EQU215-MKII EQU215TWIN-MKII

Dimensions

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 31 band, 1/3 octave, ISO spacing: 18W 1 31 band, 1/3 octave, ISO spacing: 9W 1 31 band, 1/3 octave, ISO spacing: 9W 2 15 band, 1/3 octave, ISO spacing: 9W 2 15 band, 1/3 octave, ISO spacing: 9W

483(W) 220(D) 44(H)(19" 8.66" 1.7")mm (1H series)

483(W) 220(D) 88(H)(19" 8.66" 3.5")mm (2H series)

483(W) 220(D) 132(H)(19" 8.66" 5.1")mm (3H series)

7. WARRANTY

1. WARRANTY REGISTRATION CARD

To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date.

All the information presented in this Warranty Registration Card gives the manufacturer a better understanding of the sales status, so as to purport a more effective and efficient after-sales warranty service.

Please fill out all the information carefully and genuinely, miswriting or absence of this card will void your warranty service.

2. RETURN NOTICE

2.1 In case of return for any warranty service, please make sure that the product is well packed in its original shipping carton, and it can protect your unit from any other extra damage.

2.2 Please provide a copy of your sales receipt or other proof of purchase with the returned machine, and give detail

information about your return address and contact telephone number.

2.3 A brief description of the defect will be appreciated.

2.4 Please prepay all the costs involved in the return shipping, handling and insurance.

3. TERMS AND CONDITIONS

3.1 warrants that this product will be free from any defects in materials and/or workmanship for a period

LTO

of 1 year from the purchase date if you have completed the Warranty Registration Card in time.

3.2 The warranty service is only available to the original consumer, who purchased this product directly from the

retail dealer, and it can not be transferred.

3.3 During the warranty service, may repair or replace this product at its own option at no charge to you for

LTO

parts or for labor in accordance with the right side of this limited warranty.

3.4 This warranty does not apply to the damages to this product that occurred as the following conditions:

Instead of operating in accordance with the user's manual thoroughly, any abuse or misuse of this product.

Normal tear and wear.

The product has been altered or modified in any way.

Damage which may have been caused either directly or indirectly by another product / force / etc.

Abnormal service or repairing by anyone other than the qualified personnel or technician.

And in such cases, all the expenses will be charged to the buyer.

3.5 In no event shall be liable for any incidental or consequential damages. Some states do not allow the exclu-

LTO

sion or limitation of incidental or consequential damages, so the above exclusion or limitation may not apply to you.

3.6 This warranty gives you the specific rights, and these rights are compatible with the state laws, you may also

have other statutory rights that may vary from state to state.

SEKAKU ELECTRON INDUSTRY (H.K.) CO. LTD.

No.1, Lane 17, Sec. 2, Han Shi West Road, Taichung, 401 TAIWAN

http://www.altoproaudio.com Tel:886-4-22313737

email: alto@altoproaudio.com Fax:886-4-22346757

without

manual without ekaku Electron

prior notice. Any photocopy, translation, or reproduction of part of this

NF -1.201783

Nilfisk EQU MKII User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual