User manual ARCAM DIVA P1000

[. . . ] 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. This product is designed and manufactured to meet strict quality and safety standards. [. . . ] see `Bi-amping' on page 8 for more information. Note that bi-amping in this way requires the use of phono connections between your pre-amp. Provides a 12V Trigger output, it can be connected to the 12V TRIGGER IN socket using a 3. This enables the P1000 to be turned on remotely from the pre-amp. Note that the trigger input is active only when the power button on the rear panel is in the `on' position. There are three different wiring strategies that can be employed to connect your P1000 to your speakers. Your choice will be limited by what your speakers can support. Single wiring Single wiring is the conventional wiring system of running a single cable per channel between the amplifier and the speaker. 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 higher-frequency signals. Any amplifier can support bi-wiring, but speakers support it only if separate connection terminals are provided for the two cables (the speaker will have two pairs of terminals on the back, one pair labelled HF or High Frequency, the other pair labelled LF or Low Frequency). Bi-wiring improves the sound of your system because the separation of high and low frequency signal currents into separate speaker cables avoids distortions caused by the different currents interacting with one-another within a single cable, as occurs in conventionally wired systems. Note that some speakers have three pairs of terminals on the back, extending the biwiring principle to tri-wiring. Ensure that your P1000 is switched off and disconnected from the mains supply before attempting to connect speakers. Failure to do this may result in both speaker and amplifier damage. Bi-amping The performance of your system can be enhanced further by extending the signal-separation principle to include separate amplification for the low- and high-frequency drivers in each speaker. You will require two amplifiers to do this. The speaker terminals for any given channel are labelled clearly on the rear of the P1000. The treble (higher) terminals of your speaker should be connected to the speaker terminals of the amplifier module (channel) being used for the high frequencies, while the bass (lower) terminals of your speaker should be connected to the speaker terminals of the amplifier or module (channel) being used for the lower frequencies. The strip of metal on the speakers connecting the lower terminals to the upper terminals must be removed. Do not make any connections to your amplifier while it is switched on or connected to the mains supply. Always ensure that the volume control on your pre-amplifier is set to minimum before starting to make connections. Before switching your P1000 on for the first time after connecting to speakers, please check all connections thoroughly. [. . . ] If the amplifier is supplied with a DC voltage (rather than the expected AC voltage) for an extended length of time, the coils in the attached speakers will eventually burn out (or, in extreme cases, catch fire). The P1000 can detect this condition, and cut the current to the speakers. All measurements are with 230V/50Hz mains power Continuous output power All channels driven, 20Hz--20kHz, 8 All channels driven, 20Hz--20kHz, 4 One or two channels driven at 1kHz, 8 One or two channels driven at 1kHz, 4 One or two channels driven at 1kHz, 3. 2 Peak output current capability ±20. [. . . ]