SP-997 - Audio Amplifier VINCENT - Free user manual and instructions

USER MANUAL SP-997 VINCENT

Instructions for use

english

we thank you for the confidence you prove in purchasing our product. It will match your high demands towards sound and manufacturing quality. Though it is understandable that you want to plug and play this product instantaneously, we encourage you to read this manual carefully before installation.

It will help you in handling and operating this machine in your system and obtaining the best possible performance, even if it was installed by your dealer.

Please follow the security precautions, though some of those things may seem obvious.

In the appendix to this manual you will find a glossary explaining some established technical terms.

If there are open questions your audio specialist dealer will help you. He also represents your contact person in case of needed warranty service or repairs after the warranty period and is interested to hear from your experiences with Vincent products.

We wish you plenty of joy with your / our product,

your Vincent-Team

Cher client,

Safety guidelines 20
Other instructions 21
Included in delivery 22
Description of the appliance 22
Installation 25
Operating the appliance 30
Tips 31
Search for errors 32
Technical Specifications 34
Glossary 35

english

This appliance was produced under strict quality controls. It complies with all established international safety standards. Nonetheless, the following instructions should be fully read and observed in order to prevent any hazard:

Do not open the appliance! Risk of electric shock! There are no parts in the appliance that require maintenance by the user.

Maintenance/Modifications

All equipment that is connected to the domestic mains voltage can be dangerous to the user if not handled properly. Leave maintenance work to qualified professionals. The product is only permitted for connection to AC 230Volt/50Hz, for earthed sockets and use in enclosed areas. Altering the product or manipulating its serial number voids the warranty. After a fault, leave the appliance's fuse to be replaced only by a professional with one of the same kind.

Power Cable Connection

Always pull the plug and never the power cable if you want to disconnect the appliance from the mains power. Make sure when setting up the appliance that the power cable is not squashed, severely bent or damaged by sharp edges. Do not touch the power lead with wet or damp hands. Use the power cable supplied or another one from Vincent.

Switching Off

Switch the appliance off every time before you connect or remove other components or loudspeakers, disconnect or connect it to the mains power, leave it unused for a longer period or want to clean its outside. On all amplifiers and receivers, wait approx. 1 minute after this before disconnecting or reconnecting the cable.

Moisture/Heat/Vibration

Contact of electrically operated equipment with liquids, moisture, rain or water vapour is dangerous for such equipment and the user and must be

avoided without fail. Take care that no liquids or objects get inside the appliance (ventilation slots etc.). It must be disconnected from the mains power immediately and examined by a professional if this happens. Never expose the appliance to high temperatures (direct sunshine) or strong vibration.

Heat Build-up

Make sure that a gap of 5cm remains around the appliance and that the surrounding air can circulate (do not install in enclosed cupboards). Vents must not be covered up.

Volume

The maximum tolerable volume is always

reached well below the maximum possible setting on the amplifier. Be careful with the volume setting, therefore, in order to prevent damage to hearing. So that you do not expose yourself to high volume unintentionally, always set to a low level before changing the input channel.

Cleaning

Pull out the plug before cleaning the outside of the product. Whenever possible, use a soft, lint-free cloth that has been dampened. Do not use abrasives, solvents, thinners, flammable chemicals, polishes and other cleaning products that leave marks.

OTHER INSTRUCTIONS

Setting up the appliance

How the system is set up has an effect on the sound quality. Therefore only place it on a suitable, stable surface. To make the most of your system's sound quality, we recommend placing the equipment on Vincent racks and not putting them on top of each other.

Old electronic equipment

This appliance is subject to the conditions set out in the European Directive 2002/96/EC. This is identified by the symbol of a crossed out waste bin on the appliance.

What this means for you as a consumer: All old electrical and electronic equipment that is no longer used must be disposed of separately from domestic waste using places provided by the authorities. By doing so you can prevent damage to the environment and help to encourage manufacturers to produce more durable or reusable products. For further information about disposing your old appliance, please consult your local authority, waste disposal agency or the shop where you bought the product.

CE sign

This appliance complies with the current EU directives about attaining the CE mark and thus meets the requirements for electrical and electronic equipment (EMC regulations, regulations and regulations for low voltage equipment).

Declarations

This document was written by Andreas Boer. It is a product of Sintron Vertriebs GmbH, 76473 Ilfezheim and may not be copied or distributed partly or in full without express, written consent. Vincent is a registered trademark of Sintron Vertriebs GmbH, 76473 Ilfezheim.

Vincent is a registered trademark of Sintron Vertriebs GmbH, 76473 Iffezheim.

Vincent works continually to improve and develop its products. Therefore, the appearance and technical design of the appliance are subject to changes, as long as they are in the interest of progress.

The content of these instructions is for information purposes only. It can be changed at any time without prior notice and does not constitute any obligation on the part of the trademark's owner. The latter assumes no responsibility or liability for errors or inaccuracies, which may be included in these operating instructions.

Storage of the packaging

We strongly recommend that you keep the original packaging in case you need to transport the equipment again at a later date. Transport damages are mainly caused by improper packaging of the HiFi-devices. Because the original packaging fits the equipment accurately it will reduce the risk of damage if transport is necessary.

Explanation of the symbols

The lightening bolt tells you that dangerous voltages are present in the appliance, which can cause an electric shock.

This symbol brings your attention to particularly important information regarding operation and maintenance.

This symbol identifies useful information and advice about how to handle the appliance.

INCLUDED IN DELIVERY

Please check the contents of the packaging, which in addition to the appliance should contain the following accessories:

1 power cable
- 1 cable for the POWER CONTROL
- this manual

DESCRIPTION OF THE APPLIANCE

Vincent developers are not only dedicated to the stereo tradition but also create outstanding multi-channel system audio and home cinema components. The reason we have spent much effort in main amplifier conception is that these devices can be used again in future audio systems no matter what they consist of and what data formats the sources support. That is because audio signals from whatever source will always have to find their way to the speaker.

In order to be able to integrate main amplifiers in a most flexible way and to make them be combined channel by channel, Vincent had a ground breaking idea to develop mono main amplifiers with a reduced width into an upright housing. In this way they can either be placed in combination in a rack or be placed near the corresponding loudspeaker each. The SP-997 is a mono main

amplifier from the Vincent solidLine. The SP-997 can be combined with stereo preamplifiers (Vincent SA-94, SA-93Plus), compact preamplifiers (SA-96), headphone amplifiers (Vincent KHV-1) or multichannel decoder preamplifiers (Vincent SAV-C series). To make this device cooperate with other components of the system the Power Control function and automatic shutoff have been added. Contrary to its small dimensions the SP-997 has sufficient power for most available loudspeakers.

As music sources DVD players, CD players or tuners from the Vincent range are best suited. Our recommendation regarding loudspeakers go to Vincent or Focal speakers. In combination with HiFi furniture and loudspeaker cables from the Vincent range, the most various, perfectly harmonised systems can be built that make use of these mono main amplifiers.

FRONT VIEW

1. POWER: on/off switch

This button turns the unit on and back into standby mode. If none of the POWER CONTROL sockets (6) is in use you can activate and deactivate an automatic-shutoff function using the switch "AUTO" (4). If a "POWER CONTROL" cable is connected the on/off signal via Power Control Cable determines if the main amplifier is switched on or in standby mode and the "POWER" button is inoperable.

2. POWER indicator LED

This LED is lit as long as the device is active (switched on or activated via "POWER CONTROL").

REAR VIEW

3. LINE IN:

Input for preamplified mono audio signal

One connector of this input must be connected with the output socket of the preamplifier for the desired channel. For example, connected with "PRE OUT R", if the SP-997 is to be used for the loudspeaker of the right-hand stereo channel. Only one of the two input connectors can be used at any time. The setting "XLR/RCA" must be chosen correctly. Do not connect any line level sources!

4. AUTO: automatic shutoff

With this switch you can make this main amplifier switch back into standby automatically 30 minutes after a signal has been detected for the last time at the socket "LINE IN" (3). This function is not available in case of a connected Power Control Cable (6).

5. SPEAKERS: Loudspeaker terminal

At these output sockets with threaded speaker clamps one or two loudspeakers can be connected. Speaker cable with 4mm banana plugs can be used.

6. POWER CONTROL: ON/OFF control

These jack connectors (3.5 mm) receive and forward the signal for the standby control (12V Trigger). As long as there is a cable connected to one of the "POWER CONTROL" sockets, the signal via this cable alone decides whether this main amplifier is active or in standby mode.

7. AC power connector and fuse holder

To establish the power supply, connect the plugs of the power cable to the device and to the AC wall outlet. The small plastic housing beneath the plug opening holds the fuse. Refer to the security precautions.

INSTALLATION

Set up the cable links in a sequence as follows. Connect the power cable between device and power supply only after all other connections have been made.

DURING INSTALLATION PLEASE OBSERVE THE FOLLOWING ADVICE:

Protective caps

Prior to the first installation the protective plastic caps must be removed from all the connections used at the rear of the unit.

RCA connections

Contacting the middle pin of the RCA plugs with the outer ring of the RCA chassis jack may lead to damages to the main amplifier if it is switched on! To avoid this hazard, connect or disconnect only in switched-off state and more than one minute after deactivating!

XLR connections

Please note that European and US-American XLR signal assignments for the connector pins are different. This Vincent preamplifier uses the European system following the standard AES14-1992. The cable structure is the same in any case. As long as both the preamplifier and the power amplifier satisfy the same standard, the signal connection is correct. This is always the case if both units were made by Vincent. If two units from different standards are connected, this inverts the signal. In this case the signal assignment on one side of the connection has to be changed. Your audio specialist dealer will support you with this.

Speaker cable connections

The use of ready-made loudspeaker cables is recommended instead of connecting the cable's central wire (strand) directly to the terminals. Banana plugs or cable lugs ensure high security from short-circuits and damage to loudspeakers or amplifier.

Make sure that bare loudspeaker wires are never able to come into contact with each other or with the metal on the back of the housing. Ensure that bare loudspeaker wires are never able to come into contact with each other or with the metal on the back of the housing.

Make sure that the positive and negative loudspeaker wires are connected correctly. You will notice a reduced sound quality if the connections are the wrong way round.

Only use loudspeakers with a nominal impedance of at least 4

When using loudspeaker cable with 4mm banana plugs the factory security plugs in the speaker clamps have to be removed prior first use.

Cable connections

Make sure that all plugs fit tightly. Inadequate connections can cause noise interference, failures and malfunctions.

To make the most of the components' sound potential, only high quality loudspeakers and connecting cables, for example Vincent cables, should be used. Your local stockist will be glad to advise you about this.

CONNECTING THE PREAMPLIFIER CHANNEL

This main amplifier is equipped with a mono audio input "LINE IN" on which the unit awaits the preamplified signal of one audio channel (for example "PRE OUT R", CENTER or "FRONT L"). This is the audio information the SP-997 processes for one loudspeaker.

Please note:

No source with a standard line level output signal ("LINE OUT") must be connected to this input. It is only intended for preamplified signals (e.g. "PRE OUT").

This audio input is equipped with two connectors with which the preamplifier can be connected as desired by means of either the RCA or XLR connection on the SP-997. If your preamplifier offers both options, XLR is preferable. Only one of the two connectors may be used at any given time. The setting of the switch "XLR/RCA" determines which connector is currently used as the input. If the preamplifier is connected with an RCA cable, then the switch "XLR/RCA" must be set to "RCA". If the preamplifier is connected with an XLR cable, then the switch "XLR/RCA" (3) must be set to "XLR".

Connect the selected audio input connector of the SP-997 to the output connector (example: "PRE OUTPUT R", "PRE OUTPUT REAR R" or "OUTPUT R") of a preamplifier. Summarizing, you will use an

Both "LINE IN" inputs can be connected to preamplifiers at the same time and in this way it is possible to connect two preamplifiers simultaneously and toggle between the inputs. Make sure the volume of the respective preamplifier is not set too high before switching.

If the switch "AUTO" (4) is set to "ON" and no cable is connected to both "POWER CONTROL" sockets, this main amplifier switches back into standby automatically 30 minutes after a signal has been detected for the last time at this "LINE IN" (3) socket.

Check that the electricity supply to your home is appropriate to the device. The required voltage and frequency can be read on the back of the device beside the socket for the mains. If the electricity supply is appropriate, push the inlet connector of the supplied mains cable firmly into socket for the mains on the back of the device (7). Connect the other end of the mains cable to a mains socket.

CONNECTIONS FOR THE STANDBY CONTROL (POWER CONTROL)

Many AV systems or stereo audio systems consist of a multitude of individual components. To avoid the necessity of switching them on and off before and after every use, many manufacturers have equipped their devices with what is known as "POWER CONTROL" circuit or "TRIGGER". This kind of remote-controlled standby circuit is used primarily for preamplifier and power amplifiers. To employ these functions, direct or indirect cable connections must be made between the preamplifier (or integrated amplifier) and all the devices which support this function. The "POWER CONTROL" function operates in such a way that each switching on or off of one device in the system (usually the preamplifier) automatically brings about the switching on or off of all the connected devices which support this function. Please keep in mind that all devices which respond to the power control are not disconnected from the mains network when switched off. They are set to a standby state instead. For connecting cables, two-core cables with 3.5mm jack plugs (mono) are used. For each connection between two devices one of those cables is needed. If the SP-997 main amplifier is to be switched on/off automatically with the preamplifier, then the cable connections for power control described below must be made correctly. If you don't wish to use this function or if the other components do not support it, all you have to do is leave out these cable connections.

The SP-997 is equipped with one input connector and one output connector for the power control. Connect a Power Control socket (named "POWER CONTROL OUTPUT" or "TRIGGER OUTPUT") of the controlling or relaying unit with one of the POWER CONTROL sockets. If the POWER CONTROL cable is connected to this device, the second jack connector serves to pass on the switch signal (for example to the main amplifier of the other channel) or it remains free. This main amplifier cannot generate the switching signal for other components on its own!

CONNECTIONS FOR THE STANDBY CONTROL (POWER CONTROL)

Attention:

Many devices which can be controlled by a switching signal (not preamplifiers or integrated amplifiers), have two connectors which do not differentiate between input and output. In this case either of the two can be selected. Even some devices that transmit the switch signal (preamplifiers and integrated preamplifiers) lack this marking. In this case it may be assumed that they both are signal outputs.

POWER CONTROL sockets of preamplifiers or integrated amplifiers must not be interconnected! All receiving devices must not be connected to more than one preamplifier or integrated amplifier (directly or indirectly)!

If a POWER CONTROL cable is connected to the back of the main amplifier, the main amplifier can no longer be switched off with the "POWER" (1) button. This is true even in case the POWER CONTROL cable is only connected to the SP-997 and the other end of the POWER CONTROL cable is unplugged. If the POWER CONTROL function is not desired, all switch signal cables must therefore be removed!

Please note that automatic shutoff is not available if a POWER CONTROL cable is connected to the SP-997 (independent of the setting of the switch "AUTO" (4)). In this case the SP-997 is supposed to be controlled only by POWER CONTROL signal and automatic standby would be nothing but disturbing.

CONNECTION OF THE LOUDSPEAKERS

You can connect one loudspeaker the usual way (via a two-core speaker cable) to the power amplifier SP-997. For this loudspeaker the unit provides two speaker connectors (1x positive + and 1x negative -). One end of a conventional loudspeaker cable must be connected to this connector pair. At the loudspeaker connection terminal there are similar connector screws or connectors. There, the polarity of each screw (+ or -) can be identified as well and the other side of the speaker cable associated with this loudspeaker must be attached. Make sure only connector screws of the same polarity will be connected by each speaker cable wire: a knob marked "+" in the amplifier's terminal must be connected with a speaker's connector screw marked "+" as well. SP-997 can only process the signal of one individual channel, for additional channel(s) (mostly L or R, but sometimes CENTER etc.) additional main amplifiers are needed.

If you own loudspeakers that are equipped with Bi-Wiring terminals (four connector screws) you have to make sure that the metal brackets (contact pieces consisting of small metal plates or short pieces of cable which are supplied with the speakers) are applied to the terminal and that each one connects the two knobs of the same polarity (e.g. both connectors marked "+"). The upper connector screw labelled "+" at the amplifier's backside must be connected to one of the bridged, labelled "+" connectors of the loudspeaker. Accordingly, the upper connector screw labelled "-" at the amplifier's backside must be connected to one of the bridged, labelled "-" connectors of the loudspeaker.

CONNECTION OF THE LOUDSPEAKERS

If you are using ready made loudspeaker cables with 4mm banana plugs, all you need to do is connect the two plugs on each loudspeaker cable end to the two associated speaker connectors. At first installation after unpacking the main amplifier it is necessary to remove the small plastic security plugs from the speaker connector holes (completely remove the connector screw, remove the plug and refit the screw again). Turn all connector screws clockwise to fasten them.

If you want to use speaker cables equipped with spade lug connectors, every connector screw must be opened by turning counter clockwise. After that, the lug must be moved under the screw head. Then, turn the screw clockwise to fasten the lug to the connector. To avoid damages to the amplifier, make sure the connection is tight and no bare metal from the cable lug connector makes contact with the rear panel or with another terminal.

If no connector is to be used, remove approximately 1 cm length of insulation from each end of the speaker wire. Twist the braid in order to avoid short circuits. Turn the fastener on the loudspeaker terminal counter clockwise to loosen it and introduce the bare wire end into the exposed connector hole. Then turn the fastener clockwise so that the wire is firmly clamped. Make sure the connection is pretty tight.

Attention:

Every type of loudspeakers with a minimal nominal impedance of 4 can be utilised.

Consider correct polarity, the positive contact is mostly marked red or with "+" . The side of the speaker cable that has to be connected with the positive socket has a marking.

OPERATING THE APPLIANCE

Operation	Button(s)	Description
Switch on and off	POWER (1)	The amplifier is switched on and back to standby using this button at the front panel. When switched off the device is not internally separated from the AC power and reacts to a signal at one of the inputs “POWER CONTROL” (6). This main amplifier can not be switched on or off by means of the “POWER” button as long as a cable is plugged into the “POWER CONTROL” (6) sockets. As a precaution, before switching on, the Volume setting of the preamplifier should be reduced. After switching on, the LED located at the front panel flashes for about five seconds while the preamplifier’s protective circuit is active and muting the output. The LED is lit permanently as long as the amplifier is active.
Select the input connector	XLR/RCA (3)	Here you can select if the power amplifier is provided with the preamplified input signal at the XLR or at the RCA connector at the rear of the unit. If set to “XLR”, the SP-997 cannot process a signal connected to the RCA connector but expects the signal via the XLR connector.
Activate or deactivate audio signal dependent auto-shutoff	AUTO (4)	With this switch you can activate or deactivate the automatic-shutoff function. When set to “ON” it makes this main amplifier switch back into stand-by automatically 30 minutes after a signal has been detected for the last time at the socket “LINE IN” (3). This function is not effective in case of a connected Power Control Cable (6).

TIPS

Burn in/ Warm up

Your audio components need a certain time period until they reach maximum performance. The duration of this "warm up" time is very different for the various elements of your audio system. Higher and homogeneous sound quality is achieved while keeping the device switched on.

Your audio specialist dealer has enough experience to give you more information.

Net frequency noise

Some audio source devices may in combination with the amplifier cause a humming noise at power line frequency audible from your speakers. Usually, its volume varies with the volume setting of the amplifier. This is no sign of a defect or fault of your audio products but has to be eliminated. Generally, every wall-powered device connected to the ground wire of the power plug can cause this problem when connected to the amplifier.

Experience shows that this problem is mainly caused by antenna-connected components (as TV-sets or Tuners), personal computers, electrostatic loudspeakers, subwoofer, record players or headpho

ne amplifiers that are connected to the audio inputs of the amplifier. Another possible reason for humming noise is electromagnetic interference of other components' power supplies with pick-up systems of record players (change the place of the record player for a test).

In most electric devices the ground potentials of all signals are connected to each other at one central point, where they have one common connection. If the device uses the protective conductor of the wall outlet, the corresponding wire of the line cord is connected intractably to the metal housing of the device. This is the mostly the point where the central grounding point is attached to. By doing this the housing is able to shield all signals from external radiated noise. Some main amplifiers are equipped with a "Ground Lift"-switch. If it is activated, ground potential of the chassis and the protective ground wire are being separated from the central signal ground point. The protective ground wire keeps its function. Sometimes this helps prevent noise caused by errors in grounding.

If the problem occurs and cannot be solved by yourself your audio specialist dealer will help you.

SEARCH FOR ERRORS

Symptom	Possible Cause	Countermeasure
Unit does not work after pressing the power button	Mains cable is not connected to a suitable mains wall outlet.	Connect to a functioning socket using a suitable mains voltage.
	Mains cable has not been firmly inserted into wall power socket and the device's socket (7). Otherwise it may be defective.	Check the power cable. If necessary, exchange it with a suitable mains cable and push its plug firmly into wall socket and the device's power connector.
	A cable is connected to one of the "POWER CONTROL" (6) sockets. In this case the but- ton "POWER" (1) is without function.	Remove all cables from the "POWER CONTROL" connectors (6) or switch on the unit that generates the POWER CONTROL signal (preamplifier or integrated amplifier).
	Unit fuse or unit is defective.	Contact your dealer.
The unit cannot be switched off	A device connected to the input "POWER CONTROL" transmits the switching signal (12V).	Switch off the device that controls the switching on/off of the system (usually preamplifier or integrated amplifier). If the power control functi- on is not desired, remove all cables from the "POWER CONTROL" connectors (6).
No sound, appliance is switched on (the LED (2) on the front of the device is lit)	The audio source currently selected at the preamplifier is giving no signal.	Switch on the source unit and begin play- back.
	The output of the source device is not connec- ted or is wrongly connected e. g. not connec- ted to the selected input channel terminal of the preamplifier.	Correct the connection.
	Wrong input channel has been selected at the preamplifier.	Set the preamplifier to the input that your desired source is connected to.
	Volume setting of the preamplifier is set too low.	Carefully increase the volume of the pream- plifier.
	The preamplifier has been muted (MUTE- Function).	Deactivate the MUTE function at the preampli- fier after, as a precaution, reducing the volu- me level.
	Output of the preamplifier not connected or incorrectly connected to the input connector of the SP-997.	Correct the connection to the preamplifier.
	The setting of the switch "XLR/RCA" in the connector area "LINE IN" is not correct.	Set the selector to the correct input.
	The speaker cable is not properly connected to the main amplifier's terminals (5) or is defective.	Check and tighten the speaker cables at the main amplifier and at the speakers.

SEARCH FOR ERRORS

Symptom	Possible Cause	Countermeasure
Poor sound quality	The cable connections are not tight, the connectors are dirty or a cable is defective.	Check the cables and cable connections.
	A record player has been connected to a line level input of the preamplifier without using a phono preamplifier.	Interconnect a phono preamplifier.
	An audio source with standard line level output (example: CD player) is connected to the power amplifier direct input “LINE IN” (3).	Do not connect line level audio sources to the input “LINE IN” (3).
Humming low frequency noise is audible, even as no audio source is playing back	See section “Net frequency noise” in the chapter “Tips”.	See section “Net frequency noise” in the chapter “Tips”.

TECHNICAL SPECIFICATIONS

Frequency response:

Nominal Output Power per channel at 8

Nominal Output Power per channel at 4

Input sensitivity:

Total Harmonic Distortion:

Signal to Noise Ratio:

Input Impedance:

AC power connection type:

Inputs:

Outputs:

Dimensions (W× H× D)

Weight:

Colour:

20 Hz - 20 kHz (±0.5 dB)

150W

250 W RMS

1.2 V

< 0.1% (1 kHz, 1 W)

95dB

47 kΩ

230 V / 50 Hz

1x RCA Main Input mono,

1x XLR Main Input mono,

1x POWER CONTROL (3.5 mm jack socket)

1 × 2 loudspeaker clamps,

1x POWER CONTROL (3.5 mm jack socket)

160 × 268 × 225 ~mm

6.5 kg

silver / black

GLOSSARY

Input sensitivity

Term for the smallest average (RMS) input voltage which causes the maximum output power at the maximum volume setting on the amplifier. Examples: 100mV to 500mV (Millivolts) on high level inputs, 2mV to 5mV on the phono MM input or 0.1mV to 0.5mV on the phono MC input.

dB level

This is a way of describing any physical quantity; it is a common measurement for signal voltages and the volume. It is given in decibels (dB). Alternating signal voltages below 1V (RMS) are described as "line level" voltages, which are suitable as music signals for amplifier inputs. Inputs on amplifiers (mostly represented by RCA sockets) which are designed for signals on the CD player, tape recorder, DVD player etc. are also referred to as "line level inputs". Those signal inputs must not be confused with inputs that accept preamplified signals.

RCA

RCA is the American name for a type of coaxial connectors and sockets, originally the abbreviation for "Radio Corporation of America", the name of a United States company. Both the plug and cable consist of a rod-shaped inner lead and a cylindrical-shaped outer lead. This enables a mono audio signal or a video signal to be transmitted. Compared to the XLR plug connector, this type of connection is also called "unbalanced signal connection".

XLR

Also: "Symmetrical Connection" or "Balanced". A plug-and-socket connection for audio devices. It is round (with approx. 1.5cm in diameter) and mostly has 3 contacts/pins. XLR is an alternative connection to RCA used to transmit NF-Signals in professional audio equipment. The advantage is one additional transmission path for the same but phase inverted signal. If the receiving device can process this, all inducted noise received in the cable screen can be eliminated. The signal voltage level used for this type of transfer is higher, so it is a more robust less sensitive signal path.

CONSIGNES DE SECURITE

Please keep the receipt, store it together with this manual. The receipt is your proof for the beginning of the warranty period. Note the serial number in the following box, you can read it from the rear side of the device.

www.sintron-audio.de