User manual VINCENT SV-129

[. . . ] 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. [. . . ] Only use loudspeakers with a nominal impedance of at least 8 (if two pairs of loudspeakers are connected) and a nominal impedance of at least 4 (if one pair of loudspeakers is connected). Cable connections Make sure that all plugs fit tightly. Inadequate connections can cause noise interference, failures and malfunctions. Make sure that you do not mix up the analogue inputs for right and left. The RCA plugs for these are mostly colour coded as follows: red for the right channel, black or white for the left channel. - falsely 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!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. 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. For maximum music enjoyment, we recommend that you connect to the "REC" jack adapter only as long as you are recording. The jack "PRE OUT" (11) is only needed when you separate amplifier for the supply of additional speakers want. This can be useful when two more speakers will be used for stereo music playback, even in another room. These speakers are then connected to the outputs of respective amplifiers. The output connectors "PRE OUT" (12) of SV-129 are connected with the input terminals of the amplifier (s), which are mostly labelled as "INPUT", "POWER AMP IN" or "MAIN INPUT". As shown here, instead of stereo power amplifier, two mono amplifiers can also be used. On the SV-129 amplifier, a pair of speakers can be connected. For each speaker you will find two speakers at the device terminals (positive + and negative -), with one side of a speaker cable connected. At each terminal pair you will find a label (R or L), which indicates to which side (right or left), the terminal pair belongs. On speakers, there are like or similar connections, marked here also, which connect to the pole (+ or -) belongs to. Here is the other end of the assigned speaker cable. The speaker cables must be connected like ports on a terminal pair: marked with "+" terminal on the amplifier must be marked with a "+" connector of the speaker lead. [. . . ] One of the signal cables between audio source and amplifier inputs has not yet been plugged in or is defective. An audio signal cable between the main precursor (13) and power amplifier is one of the defective or loose connections. The cable connections are not tight, the connectors are dirty or a cable is defective. the tone settings on the dials "TREBLE" or "BASS" have not been selected correctly. [. . . ]