AUDAC PRE220 Manuale utente

PRE220/240

User Manual

www.audac.eu

ADDITIONAL INFORMATION

This manual is put together with much care, and is as complete as could be on the

publication date. However, updates on the specifications, functionality or software may

have occurred since publication. To obtain the latest version of both manual and software,

please visit the Audac website @ www.audac.eu.

Index

Introduction 5

Precautions 6

Safety requirements 6

Caution servicing 6

EC Declaration of Conformity 6

Waste of Electrical and Electronic Equipment (WEEE) 7

Caution 7

Chapter 1: Pin connections and connectors 9

Connection standards 9

Chapter 2: Front & rear panel 10

Front panel overview 10

Front panel description 10

Rear panel overview 11

Rear panel description 11

Enabling phantom power & talkover 12

Chapter 3: Additional information 13

Technical specifications 13

Notes 15

Introduction

10-Channel stereo preamplifiers

The PRE2xx series preamplifiers are solutions for applications where a large number (up to

8) of microphones (or other mono balanced audio inputs) need to be mixed to two output

zones. The multifunctional stereo design with a total of 10 inputs allows connection for any

type of audio source such as microphones, Bluetooth devices or line level audio sources.

Channels one to eight are balanced inputs, allowing the connection of microphones or line

level audio sources with the ability of enabling 48V phantom power to each input. They

feature 3-band tone control and talk-over for priority announcements. The other two (9

and 10) inputs are unbalanced stereo line inputs allowing connection of any type of line level

audio source.

An integrated Bluetooth receiver and a front panel 3.5 mm jack offer convenient wired

or wireless connection possibilities for mobile and portable devices including laptops,

smartphones and tablets. The front panel includes a master volume control with 2-band

tone control and LED VU bar for each output.

Each input section is accommodated with input mixing dials and output selection switches.

A priority mute for each zone output suppresses all (non-priority) music sources in case of

contact closure, allowing linking autonomous alarm systems.

Precautions

READ FOLLOWING INSTRUCTIONS FOR YOUR OWN SAFETY

ALWAYS KEEP THESE INSTRUCTIONS. NEVER THROW THEM AWAY

ALWAYS HANDLE THIS UNIT WITH CARE

HEED ALL WARNINGS

FOLLOW ALL INSTRUCTIONS

NEVER EXPOSE THIS EQUIPMENT TO RAIN, MOISTURE, ANY DRIPPING OR SPLASHING

LIQUID. AND NEVER PLACE AN OBJECT FILLED WITH LIQUID ON TOP OF THIS DEVICE.

DO NOT PLACE THIS UNIT IN AN ENCLOSED ENVIRONMENT SUCH AS A BOOKSHELF

OR CLOSET. ENSURE THERE IS ADEQUATE VENTILATION TO COOL THE UNIT. DO NOT

BLOCK THE VENTILATION OPENINGS.

DO NOT STICK ANY OBJECTS THROUGH THE VENTILATION OPENINGS.

DO NOT INSTALL THIS UNIT NEAR ANY HEAT SOURCES SUCH AS RADIATORS OR

OTHER APPARATUS THAT PRODUCE HEAT

DO NOT PLACE THIS UNIT IN ENVIRONMENTS WHICH CONTAIN HIGH LEVELS OF DUST,

HEAT, MOISTURE OR VIBRATION

THIS UNIT IS DEVELOPED FOR INDOOR USE ONLY. DO NOT USE IT OUTDOORS

PLACE THE UNIT ON A STABLE BASE OR MOUNT IT IN A STABLE RACK

ONLY USE ATTACHMENTS & ACCESSORIES SPECIFIED BY THE MANUFACTURER

UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG

PERIODS OF TIME

ONLY CONNECT THIS UNIT TO A MAINS SOCKET OUTLET WITH PROTECTIVE

EARTHING CONNECTION

THE MAINS PLUG OR APPLIANCE COUPLER IS USED AS THE DISCONNECT DEVICE, SO

THE DISCONNECT DEVICE SHALL BE READILY OPERABLE

THIS DEVICE IS NOT SUITABLE FOR USE IN LOCATIONS WHERE CHILDREN ARE LIKELY

TO BE PRESENT

EC DECLARATION OF CONFORMITY

This product conforms to all the essential requirements and further

relevant specifications described in following directives: 2014/30/EU

(EMC) and 2014/35/EU (LVD)

CAUTION - SERVICING

This product contains no user serviceable parts. Refer all servicing to

qualified service personnel. Do not perform any servicing (unless you

are qualified to)

CAUTION

The symbols shown are internationally recognized symbols that warn about potential

hazards of electrical products. The lightning flash with arrow point in an equilateral triangle

means that the unit contains dangerous voltages. The exclamation point in an equilateral

triangle indicates that it is necessary for the user to refer to the users manual.

These symbols warn that there are no user serviceable parts inside the unit. Do not open the

unit. Do not attempt to service the unit yourself. Refer all servicing to qualified personnel.

Opening the chassis for any reason will void the manufacturer’s warranty. Do not get the

unit wet. If liquid is spilled on the unit, shut it off immediately and take it to a dealer for

service. Disconnect the unit during storms to prevent damage.

CAUTION HOT SURFACE

CAUTION: Hot surface

Do not touch

WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)

The WEEE marking indicates that this product should not be disposed

with regular household waste at the end of its life cycle. This regulation

is created to prevent any possible harm to the environment or human

health.

This product is developed and manufactured with high quality materials

and components which can be recycled and/or reused. Please

dispose this product at your local collection point or recycling centre

for electrical and electronic waste. This will make sure that it will be

recycled on an environmentally friendly manner, and will help to protect

the environment in which we all live.

POWER SUPPLY AND POWER CORD REQUIREMENTS

Power supply class I grounding requirements:

For protection from fault currents, the equipment shall be connected to a grounding terminal.

Plug the system power cord into an AC outlet that provides a ground connection. Substitute

cords may not provide adequate fault protection. Only use the power cord supplied with

this product or an authorized/equivalent replacement

Safety notices:

Denmark:

Apparatets stikprop skal tilsluttes en stikkontakt med jord, som giver forbindelse

til stikproppens jord.

Finland:

Laite on liitettävä suojakoskettimilla varustettuun pistorasiaan.

Norway:

Apparatet må tilkoples jordet stikkontakt.

Sweden:

Apparaten skall anslutas till jordat uttag.

ATTENTION

The fuse (T500mAL/250V) provides a safeguard function to the device. When replacing

the fuse, make sure that the value of the replacement matches the value of the original

fuse. Identification of a suitable replacement component or substitute shall be done by

qualified technicians.

Chapter 1

Pin connections and connectors

CONNECTION STANDARDS

The in- and output connections for AUDAC audio equipment are performed corresponding

to international wiring standards for professional audio equipment.

Cinch (RCA):

For unbalanced line input connections

Tip: Signal Sleeve: Ground

White: Left Red: Right

XLR:

For balanced signal input connections

Pin 1: Ground

Pin 2: Signal +

Pin 3: Signal -

3-Pin Terminal Block:

For balanced signal input & link output connections.

Left: Signal - (XLR Pin 3)

Center: Signal + (XLR Pin 2)

Right: Ground (XLR Pin 1)

For balanced line output connections:

For unbalanced line output connections:

Chapter 2

Front & rear panel

Front panel overview

Front panel description

Input mixing controls:

Using the input mixing controls, the individual level for each input can be adjusted. Each

input control is provided with a clip indicator LED which illuminates when the maximum level

(clipping) is almost reached. To ensure the best signal-to-noise ratio, illumination of this

indicator should only occur at peak levels. When it illuminates frequently, the channel will

be overdriven and a distorted ‘clipping’ sound will occur.

Signal routing selection buttons:

The signal routing buttons located on the right side of each input mixing control (indicated

with ‘Z1’ and ‘Z2’ for PRE220 and ‘Z1 to Z4’ for PRE240) are used for selection for routing

each input to one or both output channels. Press this button to enable the input routing to

the corresponding output. The corresponding routing indicator LED illuminates when routed.

Bluetooth (CH1):

The integrated Bluetooth receiver is mixed with channel 1 and contains a pairing button

besides the input mixing control. This allows connection of the pre-amplifier with any

supporting audio source device such as smartphone or tablet. The LED positioned beside

this button indicates the current operation mode. When non illuminating, the device cannot

be discovered by (new) Bluetooth devices. When blinking, the device is not connected but can

be discovered through Bluetooth devices, and when illuminated it is connected and doesn’t

allow pairing with another device.

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