Denon AVR-2500 Operating Instructions - Page 6
Speaker, System, Connections, Connecting, antenna, terminals
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2-2 Speaker System Connections • This receiver can accommodate connections of a total of eight speakers including two set of (front) main amplifier speakers (A and B), one set of rear speakers, and one or two center speakers. e e). • Connect the speaker terminals with the speakers making sure that like polarities are matched (Cs with 0 , with Mismatching of polarities will result in weak central sound, unclear orientation of the various instruments, and the sense of direction of the stereo being impaired. • When making connections, take care that none of the indi- vidual conductors of the speaker cord come in contact with adjacent terminals, with other speaker cord conductors, or with the rear panel. • Speaker Impedance • • When speaker systems A and B are use separately, speakers with an impedance of from 6 to 16 4 /ohms can be connected. • Be careful when using two pairs of main speakers (A + 8) at the same time, since use of speakers with an impedance outside the.range of 12 to 16 /ohms will lead to damage. • Speakers with an impedance of 6 to 12 0/ohms can be connected for use as center and rear speakers. • The protection circuit may operate or damage may occur when speakers with an impednce outside of the above range are used. Connecting the speaker terminals 1. Losen by turning counterclockwise. 2. Insert the cord. I I 3. Tighten by turning clockwise Connecting banana plugs 1. Press the lever. 2. Insert the cord. • I=> 3. Release the lever. 2-3 Connecting the antenna terminals FM Indoor antenna (An Accessory) 75 4 /ohms coaxial cable ANTENNA TERMINALS IN COAX ntt LOOP COO - AM CENTER SPEAKER PRf OUL, 0 0 IMPEDANCl/Ave 6.40 A.8 It-t6lj~ AM LOOP ANTENNA tan Accessory) AM OUTDOOR ANTENNA "Ilr " GROUND 1. Push the lever. Connection of AM antennas 2. Insert the conductor. 3. Return the lever. 6 Banana Plug Turn clockwise to tighten, then insert the banana plug. ANTENNA INSTALLATION • FM ANTENNA The supplied FM antenna can be used inside wooden houses for receiving local FM stations and other strong FM signals. Stretch out the ends of the antenna and mount the antenna on the wall or ceiling where optimum reception is achieved. A indoor FM antennas may not consistently ensure stable reception, due to environment changes. In such cases, the indoor FM antenna should only be used temporarily until an outdoor FM antenna has been installed. When connecting an outdoor FM antenna, the use of 75 ohm coaxial cable (3C-2V, 5C-2V) is strongly recommended. • AM ANTENNA Attach the supplied AM loop antenna even when using an outdoor AM antenna. Connect the leads to the AM and GND terminals. Also use the AM terminals for connecting an outdoor AM antenna (when.making such a connection do not disconnect the AM loop antenna.) Adjust the loop antenna to obtain optimum reception, Where broadcast stations are distant and only weak signals are received, or where signals are blocked, it is best to install an outdoor AM antenna. NOTES • This receiver has a full back-up system. When the power is turned on, the INPUT SELECTOR buttons are set to the last mode set before the power was turned off. • When using this receiver in close proximity to video equipment (TV, VCR, VDP, etc.), noise may be generated in AM broadcasts. To avoid this, keep the receiver as far away from other video components as possible, or detach the AM loop antenna from the antenna holder and place it where noise is reduced. If the noise is not reduced, turn off the power of the video components when listening to AM broadcasts. Note to CATV system installer: This reminder is provided to call the CATV system installer's attention to Article 820.40 of the NEC which provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as close.to the point of cable entry as practical.