User manual ARCAM FMJ A28

[. . . ] A28 Handbook Manuel Integrated amplifier Amplificateur intégré Integrierter Verstärker Geïntegreerde versterker HandbucH Handleiding CAUTION ATTENTION RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR class i product This equipment is a Class I electrical appliance. It requires safety connection to electrical earth (`ground' in the U. S. ). safety guidelines RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: To reduce the risk of electric shock, do not remove cover (or back). WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated `dangerous voltage' within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. [. . . ] Before switching your amplifier(s) on for the first time after connecting to speakers, please check all connections thoroughly. Ensure that bare wires or cables are not touching each other or the amplifier's chassis (which could cause short circuits), and that you have connected positive (+) to positive and negative (­) to negative. After making connections: switch the amplifier(s) on, select a source signal, then gradually increase the volume to the required listening level. If you are unsure as to how your system should be connected, or need advice on bi-wiring or bi-amping, please contact your Arcam dealer who will be happy to help you. bi-wiring Bi-wiring is running two separate cables between the amplifier and each speaker, with one cable carrying the low-frequency information, the other the higherfrequency signals. Bi-wiring can improve the sound of your system because the separation of high- and low-frequency signal currents into different speaker cables avoids distortions caused by the different currents interacting with oneanother within a single cable. The A28 is designed to allow easy bi-wiring, but your loudspeakers need to provide separate terminals for the two cables. Each speaker must have two pairs of terminals; one pair labelled hF or `High Frequency', the other pair labelled LF or `Low Frequency'. < < bi-amping Bi-amping is the separation of the amplification of lowand high-frequency signals over two amplifiers. Normally, your A28 is used to drive the highfrequency (treble) speakers, with a P38 used for the lower (bass) frequencies. < e-8 Single wiring english The A28 is designed for bi-wiring, which is why there are duplicate speaker terminals on the back. For single wiring, we recommend that you use the lower set of speaker terminals on your amplifier. If each speaker has more than one pair of connecting terminals, use the terminals labelled LF or `Low Frequency' for each speaker. Connect the positive terminal of the right speaker connection on the amplifier (coloured red and labelled +R) to the positive terminal of your right speaker. Similarly, connect the negative terminal of the amplifier (coloured black and labelled with R­) to the negative terminal of your speaker. Repeat the process for the left speaker, using the amplifier terminals labelled +L and L­. If your speakers support bi-wiring, then there is a strip of conductive metal on the speakers connecting the low-frequency terminals to those for the higher-frequencies; this mUST NOT be RemOVeD in a singlewired system. An A28 connected to speakers using single wiring bi-wiring Bi-wiring is performed in the same way as single wiring except that, for each speaker, a pair of cables are used to connect the amplifier to each speaker. Follow the instructions given for single wiring; then perform the same actions, this time connecting the upper set of speaker terminals on your amplifier to the terminals labelled hF or `High Frequency' for each speaker. Speakers that support bi-wiring have a strip of metal on the speakers connecting the low-frequency terminals to those for the higher-frequencies; this mUST be RemOVeD in a bi-wired system. An A28 connected to speakers using biwiring bi-amping Bi-amping requires the use of two amplifiers per channel. Normally, your A28 is used to drive the highfrequency (treble) speakers, while a power-amplifier (such as a P38) is used for the lower (bass) frequencies. Connect your A28 to the speakers as described for single wiring, with the exception that the A28 should be connected to the speaker terminals labelled hF or `High Frequency'. Then connect the power amplifier (P38, for example) to the LF or `Low Frequency' terminals, as in the diagram. A pair of audio interconnect cables are also required to connect the pre-amp outputs of the A28 to the power amp inputs of the P38. Note that the strip of metal on the speakers connecting the lower terminals to the upper terminals mUST be RemOVeD. Failure to do so will result in damage to both amplifiers, which will not normally be covered under warranty. An A28 and P38 connected to speakers using biamping e-9 a v -ph 20 operation Switching the a28 on The powER button switches the unit on and off; alternatively, the unit can be switched in and out of stand-by mode by pressing the 2 button on the remote control handset. [. . . ] With its extensive built-in library of codes, it can also be used with thousands of other audio-visual components ­ TVs, satellite and set-top boxes, PVRs and third-party CD players. The CR90 is a `learning' remote, so you can teach it almost any function from an old single-device remote. You can also program the CR90 to issue a sequence of commands (`macros') from a single button press ­ see the CR90 Handbook for details. As the CR90 is a system remote controller, some of the keys are not used with the A28. [. . . ]