Denon AVR 3806 Owners Manual - Page 12

Easy Setup and Operation Speaker connections • Connect the speaker terminals with the speakers making sure that like polarities are matched (< with with >). Mismatching of polarities will result in weak central sound, unclear orientation of the various instruments, and the stereo image being impaired. • When making connections, take care that none of the individual conductors of the speaker cable come in contact with adjacent terminals, with other speaker cable conductors, or with the rear panel. NOTE: NEVER touch the speaker terminals when the power is on. Doing so could result in electric shocks. 2 Speaker impedance • Speakers with an impedance of from 6 to 16 Ω/ohms can be connected for use as front, center, surround and surround back speakers. • Be careful when using two pairs of surround speakers (A + B) at the same time, since use of speakers with an impedance of less than 8 Ω/ohms will lead to damage. • The protector circuit may be activated if the set is played for long periods of time at high volumes when speakers with an impedance lower than the specified impedance are connected. Note on speaker impedance The protector circuit may be activated if the set is played for long periods of time at high volumes when speakers with an impedance lower than the specified impedance (for example speakers with an impedance of lower than 4 Ω/ohms) are connected. If the protector circuit is activated, the speaker output is cut off. Turn off the set's power, wait for the set to cool down, improve the ventilation around the set, then turn the power back on. Connecting the speaker cables 1. Loosen by turning counterclockwise. Either tightly twist or terminate the core wires. 2. Insert the cable. 3. Tighten by turning clockwise. Connecting banana plugs Turn clockwise to tighten, then insert the banana plug. Protector circuit This unit is equipped with a high-speed protection circuit. The purpose of this circuit is to protect the speakers under circumstances such as when the output of the power amplifier is inadvertently short-circuited and a large current flows, when the temperature surrounding the unit becomes unusually high, or when the unit is used at high output over a long period which results in an extreme temperature rise. When the protection circuit is activated, the speaker output is cut off and the power supply indicator flashes. Should this occur, please follow these steps: be sure to switch off the power of this unit, check whether there are any faults with the wiring of the speaker cables or input cables, and wait for the unit to cool down if it is very hot. Improve the ventilation condition around the unit and switch the power back on. If the protection circuit is activated again even though there are no problems with the wiring or the ventilation around the unit, switch off the power and contact a DENON service center. Easy Setup and Operation 2 Connections • The AVR-3806 can be configured for 10 speaker playback using two pairs of surround speakers (A+B) and one pair of surround back speakers as shown below. • The output of the surround back's power amplifier can be assigned to the multi zone or front channel. For details, refer to "Setting the Power Amplifier Assignment" ( page 72). • When making connections, also refer to the operating instructions of the other components. Subwoofer Center speaker Surround speaker Systems (A) Surround speaker Systems (B) Connection terminal for subwoofer with built-in amplifier IN (subwoofer), > < etc. (L) (R) > < (L) (R) > < (L) >< (R) >< (L) (R) > < Front speaker Systems Precautions when connecting speakers: If a speaker is placed near a TV or video monitor, the colors on the screen may be disturbed by the speaker's magnetism. If this should happen, move the speaker away to a position where it does not cause this effect. Surround back speaker Systems NOTE: • When using only one surround back speaker, connect it to the left channel. 7