Denon D-M51DVS User Manual download pdf (Page 17)

ENGLISH

(8) Using the active subwoofer (DSW-3L) (D-M51DVS only)

• 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 LED 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.

Protector circuit

• 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.

Note on speaker impedance

• With this unit’s speaker outputs, signals with the reverse phase of the “+” side output terminal’s signals are also output from the “–” side

output terminal.

Do not connect to a device for switching between multiple speakers (a speaker selector or audio channel selector) or connect in ways other

than described in this manual. Doing so will result in damage.

Cautions on connecting

Either twist the core wires

firmly or terminate the wires.

qTurn the speaker

terminal

counterclockwis

e to loosen it.

wInsert the cord’s

core wires.

eTurn clockwise to

tighten the

terminal.

When using banana plugs, turn

clockwise to tighten the terminal

before inserting.

Connecting banana plugs

1. Set the power switch to the “ON” position.

• When the unit’s AC power cord is plugged into a switched AC outlet on the amplifier, if the power switch is left at the “ON” position, the

unit’s power turns on and off automatically when the amplifier’s power is turned on and off.

• If the AC power cord is not plugged into a switched AC outlet on the amplifier, set the unit’s power switch to the “ON” position after turning

on the amplifier’s power. When turning the power off, set the unit’s power switch to the “OFF” position before turning off the amplifier’s power.

2. Adjust the volume using the volume adjustment control.

For details, see “PART NAMES AND FUNCTIONS”.

(9)

Removing the speaker net (SC-A3L) (D-M51DVS only)

* The net on the front of the speaker systems (SC-A3L) can be removed.

• To remove, grasp both sides of the net and pull forward.

• To mount, line up the holes in the four corners of the speaker net with the projecting pieces in the four corners of the cabinet and press in.

The red side is the “+” side, the black side

the “–” side.

To “+” side on amplifier

(copper colored core wire)

NOTE: Make sure the core wires do not

touch each other.

To “–” side on amplifier

(silver colored core wire)

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Denon D-M51DVS User Manual Page 17

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