User manual VINCENT SA-31

[. . . ] Dear Customer, 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. [. . . ] The RCA plugs for these are mostly colour coded as follows: red for the right channel, black or white for the left channel. 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. 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!You can connect up to four devices with analogue stereo high level output such as a CD player in order to provide the audio signals of your input sources to the system. the output sockets on the source equipment are usually indicated by "Line Out" , "Audio Out" or "Front Out". You will find information about ways to connect source equipment in their operating manuals. The audio inputs "CD", "AV", "TAPE" and "TUNER" (9) represent electrically equivalent standard high level inputs with RCA connection. They have an identical function and differ only in name. This preamplifier has two stereo preamplifier outputs with RCA connectors for the main amplifier channels. In this way it is possible to drive four loudspeakers or bi-wire/bi-amp one pair of loudspeakers. the main amplifiers supply the system's loudspeakers and the loudspeakers are connected to the outputs of these. Instead of each stereo main amplifier shown here you can alternatively use two mono main amplifiers. Connection of one pair of speakers: In this case you will need two main amplifier channels, for example one stereo main amplifier. Connect both sockets named "1" in the field "OUTPUT" with the RCA input sockets of the main amplifier channels (often marked as "INPUT" or "POWER AMP IN"). Please pay attention not to interchange right with left channels. The letters "R" and "L" indicate the correct correlation. You may further use the SA-31 preamplifier output marked with "2" for a headphone amplifier. General hints: To use a record player you need a so-called phono preamplifier (also called an equaliser preamplifier), which is installed in the signal path between the record player and one of the high-level inputs. Some models of record player already include this preamplifier and can be connected directly. You will find further information in this appliance's operating manual. [. . . ] Check the connection and ready status of the main amplifier(s) and whether it is/they are working. The source equipment is giving signal on only one channel. One of the signal cables between audio source and preamplifier inputs has not yet been plugged in or is defective. One or more audio signal cables between pre- and main amplifier are defect or one of the plug connections is loose. [. . . ]