Pro-Ject Audio Systems Stereo Box DS3 Manuale utente

INSTRUCTIONS FOR USE

Stereo Box DS3

-Ject Audio Systems · Stereo Box DS3 · Revision 19.12.2022

Dear music lover,

Thank you for purchasing an integrated amplifier from Pro-Ject Audio Systems.

In order to achieve maximum performance and reliability you should study these instructions for use carefully.

Warning of a hazard for the user, the unit or possible misuse

Important notice

Safety instructions

AC outlet voltages vary from country to country. Before connecting to the mains, make sure that the

voltage in your area meets the voltage requirements printed on the power supply.

The power supply is used to connect/disconnect the unit from the mains. Make sure that the power supply

is easily accessible at all times. Never handle the device, the power supply while your hands are wet or

damp.

Avoid letting liquids enter the device or the power supply. Never place any item containing

liquid, such as a flower vase on or near the device. Never spill any liquid on the device or the power

supply. Never place any naked flame sources, such as lighted candles on or near the device. The product

shall not be used in damp or wet locations, next to a bathtub, sink, swimming pool or any other similar

conditions.

Connectors

1. Make all connections whilst the unit is disconnected from the mains.

2. Never connect or disconnect the power supply to or from the unit whilst the power supply is connected

to the mains. Never use any other power supply than the supplied one, with the exception of dedicated

Power Boxes which can replace original power supplies.

3. Take care to connect the left and right channels of RCA inputs correctly. The right channel is usually

marked red, the left channel black or white.

Speaker connections for the left speaker are located on the right-hand

side of rear view above,

connections to right speaker are located on the left side. Speaker connectors marked red represent

according indicators on speaker terminal.

Mains power connection and methods to switch the unit on and off

Connect the low voltage plug from the power supply to the Power 36V DC socket of the unit before

connecting the power supply to the mains. Stereo Box DS3 can be switched on and off by using 2 different

methods which are equal in priorities.

1. Using front pushbutton to switch on or into standby

The pushbutton on the front panel of the unit alternately turns the power on or returns it to standby mode. The

blue LED on the front panel shows that the unit is powered on. If a trigger signal is present Stereo Box DS3

can’t be switched off by the pushbutton.

.2022

2. Remote power on - triggers

Stereo Box DS3 can be switched on via other Box Design components when a 12V trigger voltage is present

at the 2.5mm socket marked Trigger Input. Special power-on cables (polarity ) in diverse lengths are

available as accessories. The remote power-on signal can be relayed to further units via the Trigger Output

socket. When the 12V trigger signal is switched off, Stereo Box DS3 will also switch off.

Trigger cables may only be plugged into the sockets when the amplifier is disconnected from the power

supply and from the mains. Failure to do so may result in damage of the unit.

Line output

A power amplifier, active loudspeakers or an active subwoofer can be connected to the output sockets marked

Var Output.

Fix Line Output

Fix Output connects an analogue record device or a headphone amplifier.

Connection to the speakers

The output terminals accept loudspeaker cables terminated with 4mm ∅Banana plugs, spades connectors or

naked wire.

Phono input

Connect the tonearm signal lead to the Phono input of the amplifier. The MM/MC switch on the back panel

allows to adapt to connected cartridge type. The earthing wire may be connected to the screw terminal if you

encounter hum problems when using the turntable.

Line inputs

Line level sources (CD player, radio or TV) can be connected to the inputs marked In 2, In 3 or In 4.

Front panel controls

Input selector

After the unit is powered on, pressing the buttons◄and ►selects the desired input. The LEDs show which

input is currently active.

Volume

Adjust the volume to the desired level, using the large knob on the front panel.

-Ject Audio Systems · Stereo Box DS3 · Revision 19.12.2022

Connecting a headphone

Connect the headphones to the ¼“ (6,3mm ∅) jack socket on the front of the unit. Once headphone jack is

connected into the socket, rear panel outputs are muted.

+6dB button

gain of the preamplifier for all inputs is increased by 6dB if pressed

BLUETOOTH® connection

Make sure the antenna is attached to its connector In 5 BT on the back panel prior using BLUETOOTH®.

Only use the supplied antenna!

BLUETOOTH® is active only when input 5 is selected. If you want to connect your device the first time activate

the pairing mode by pressing and hold the button ►(pair) until LED 5 starts blinking. The Stereo Box is now

visible & ready to pair for 60 seconds.

Pairing with Android devices

Open Settings and turn on BLUETOOTH®. Start a Scan for BLUETOOTH® devices. Searched devices will

show up. Tap on "Stereo Box DS3" and confirm presented pairing code on your Android device. When the

connection was successful, the LED of Input 8 lights up continuously. Now you can play music from your

Android device over BLUETOOTH® to Stereo Box DS3.

BLUETOOTH® pairing with Apple devices

Tap on Settings and turn on BLUETOOTH®. Your device will automatically start searching for available

devices. Tap on "Stereo Box DS3" and confirm the connection. When the connection was successful, the LED

of Input 5 lights up continuously.

BLUETOOTH® pairing with Windows smartphones

Open Settings and turn on BLUETOOTH®. A scan for available devices starts automatically. Searched devices

will show up. Tap on "Stereo Box DS3" and confirm presented pairing code on your Windows device. When

the connection was successful, the LED of Input 5 lights up continuously. Now you can play music from your

Windows device over BLUETOOTH® to Stereo Box DS3.

Stereo Box DS3 can store up to 8 BLUETOOTH® devices. If the memory is full, new connections will

automatically replace the oldest connection. A new connection is only possible if the LED of BT input is

blinking slowly (it indicates that no device is connected). You can reset & clear the BLUETOOTH®

module by holding the ◄button and then turn the unit on. The LED 5 will quickly flash & the device

will then turn on after the reset is completed.

Remote control

ON/OFF turns the unit on/off

VOL-turns the volume down

VOL+ turn the volume up

CH-select the input down

CH+ select the input up

MUTE activates and deactivates mute

.2022

Replacing batteries

Proceed as follows:

•Unlock and slide open the battery case cover

•Replace the battery.

Make sure the battery is the right way round!

•Close the battery case cover

Battery type: 2x AAA 1,5V

Do not dispose the batteries as ordinary domestic refuse. Please dispose your exhausted batteries at

the appropriate collection sites - usually located at supermarkets and drugstores.

Technical specifications Pro-Ject Stereo Box DS3

Power output: 2x 150W/80W at 4/8 ohms (1%THD)

Frequency response (20Hz-20kHz): - 0,1dB at 20Hz, +0,3dB at 20kHz

Channel separation: - 73dB at 10kHz

Signal to noise ratio PA output: >98dB (105 dB - 'A' weighted) at 1kHz

Signal to noise ratio Variable output: >117dB (120 dB - 'A' weighted) at 1kHz

THD: < 0,01% at 10W

Line level inputs: 3 pair RCA (sensitivity: 860 mV)

Line input impedance: 50 kohms

Line input gain: 29 dB), + 6 dB

Phono input: 1 pair RCA

Phono input sensitivity: suitable for MM, MI and MC cartridges

Phono input impedance: MM 47k ohms / MC 100 ohms

Phono input gain: MM 40dB / MC 60dB

Fix line level output: 1 pair RCA

Variable line level output: 1 pair RCA

BLUETOOTH® version: 5.0

BLUETOOTH® music receiver codec: aptX, aptX HD, A2DP profile

Speakers connectors: ∅ 4mm banana plugs, spades connectors or naked wire

Headphone amplifier: 1x 6.3mm stereo JACK

Headphone amplifier output: 2 x 450mW at 32ohm (1%THD)

Frequency response (20Hz-50kHz): -0,1dB at 32 ohms

Min. recommended impedance: 16 Ohm

Trigger input: 12V on/off detector

Tigger output: 12V

Outboard power supply: 36V/5,5A DC suitable for your country's mains supply

Power consumption in standby: <0.5W

Replacement battery remote control: 2x AAA 1,5V

Dimensions W x H x D (D with sockets): 206 x 71 x 211 (223) mm

Weight: 1800 g without power supply

Should you encounter a problem which you are not able to alleviate or identify, please contact your dealer for

further advice. Only if the problem cannot be resolved there, the unit should be sent to the responsible

distributor in your country.

-Ject Audio Systems · Stereo Box DS3 · Revision 19.12.2022

Warranty

The manufacturer accepts no responsibility for damage caused by not adhering to these instructions

for use. Modification or changes to any part of the product by unauthorized persons release the

manufacturer from any liability over and above the lawful rights of the customer.

Pro-Ject Audio Systems is a registered Trademark of

H. Lichtenegger.

This guide was produced by: Pro-Ject Audio Systems

The information was correct at the time of going to

press. The manufacturer reserves the

right to make

changes to the technical specification without prior

notice as deemed necessary to uphold the ongoing

process of technical development.

BLUETOOTH®® is a trademark owned by the BLUETOOTH® SIG, Inc., , Microsoft®, Windows®, are either

registered trademarks or trademarks of Microsoft Corporation, Apple is registered trademark of Apple Inc.,

Android™ is a trademark of Google Inc.

Waste from Electrical and Electronic Equipment (WEEE): This directive mandates the collection and recycling

of electronics and component materials in order to reduce the amount going to landfills. Outside North

America, when the user decides to discard this product, it must be sent to a separate collection facility for

recycling. Please contact your point of purchase for more details.

Federal Communication Commission (FCC) Interference Statement FCC Part 15: This equipment has been

tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference in a residential

installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and

used in accordance with the instructions, may cause harmful interference to radio communications. However,

there is no guarantee that interference will not occur in a particular installation. If this equipment does cause

harmful interference to radio or television reception, which can be determined by turning the equipment off

and on, the user is encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna

- Increase the separation between the equipment and receiver

- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected

- Consult the dealer or an experienced radio/TV technician for help.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)

This device may not cause harmful interference, and (2) this device must accept any interference received,

including interference that may cause undesired operation. FCC Radiation Exposure Statement: This equipment

complies with FCC radiation exposure limits set forth for an uncontrolled environment.

To maintain compliance with FCC´s RF exposure guidelines, this equipment should be installed and operated

with minimum distance 20cm between the radiator and your body. Use on the supplied antenna.

Contains FCC ID: 2AWO-FSCBT1026

.2022

Declaration of Conformity

We, Canor spol. s r.o.

Družstevná 13925/39

08006 Prešov

Slovakia

(manufacturer)

and

Pro-Ject Audio Systems a division of Audio Tuning GmbH

Margaretenstrasse 98

1050 Vienna,

Austria

(distributor)

declare under our responsibility that the product is in conformity with the provisions of Directives:

2014/35/EU including amendments

2014/30/EU including amendments

2014/53/EU including amendments

The following harmonised standards were applied:

Health: EN62479:2010

Safety: EN60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013, EN62368-1:2014/A11:2017,

EN61558-1:2005/A1:2009, EN61558-2-16:2009/A1:2013

EMC: EN301489-1 V2.2.0: 2017-03, EN301489-17 V3.2.0:2017-03, EN55032:2015, EN55035:2017,

EN61000-3-2:2014, EN61000-3-3:2013

Radio Spectrum: EN300328 V2.1.1 (2016-11)

Pro-Ject Audio Systems a division of Audio Tuning GmbH

1050 Vienna, Austria, Margaretenstrasse 98

info@project-audio.com

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