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y [LIMIT] indicator

Indicates (lit in red) that the limiter is on when the output

voltage of the amplifier has exceeded the maximum level,

or when excessive integral power consumption is

detected. If this indicator stays lit, lower the input level.

NOTE

Integral power consumption refers to the sum of power provided

to the speaker driver per unit time.

u [SIGNAL] indicator

Indicates (lit in green) when an audio signal exceeding

the threshold has been detected.

i [PROTECTION] indicator

Indicates (lit in red) when the protection circuit is active.

The protection circuit will be activated and the speaker

outputs will be muted in the situations listed below.

• If amplifier overheating is detected

• If overcurrent is detected

• When turning the power on; the protection circuit will be

activated for a few seconds to prevent noise. The indi-

cator turns off when the power supply has started nor-

mally.

If the protection circuit has engaged, waiting until the

amplifier cools down or powering off and on again will

return to normal operation. If the unit does not return to

normal operation, please contact your Yamaha dealer.

o [POWER] indicator

Indicates (lit in green) when the [ /

is turned on.

!0 [D-CONTOUR] indicator

Indicates (lit in yellow) when the [D-CONTOUR] switch

(!1 ) is set to [FOH/MAIN] or [MONITOR].

!1 [D-CONTOUR] switch

Selects one of the D-CONTOUR (Dynamic CONTOUR)

presets.

[FOH/MAIN]: Boosts the high and low frequency compo-

nents so that the frequency response is suitable for a

main speaker.

[MONITOR]: Reduces the low frequency range, which

could otherwise tend to be boomy if the speaker is set

directly on the floor. This enables you to hear mid and

high frequency ranges clearly when using as a floor

monitor.

[OFF]: Turns off D-CONTOUR. This is a generic frequency

response setting.

!2 [HPF] switch

Selects the cutoff frequency of the high pass filter. If you

set this switch to [120Hz] or [100Hz], the low frequency

components below each threshold will be cut. If you use

the unit alone, set this switch to [OFF]. If you plan to use

the unit along with a subwoofer, we recommend that you

set this switch to [120Hz] or [100Hz].

!3 Vent

!4 [AC IN] socket

!5 [ / ] (power) switch

] (power) (!5 ) switch

The unit contains a cooling fan.

CAUTION

Do not block the vents. This product has ventila-

tion holes at the rear to prevent the internal tem-

perature from becoming too high. Inadequate

ventilation can result in overheating, possibly

causing damage to the product(s), or even fire.

Connect the supplied power cord in the order below.

Before connecting the power cord, make sure that the

DHR power is turned off.

1. Insert the plug of the power cord into this socket.

2. Plug the other end of the cord into the AC outlet.

NOTE

When removing the power cord, perform this procedure in

reverse order.

WARNING

Use only the supplied power cord.

CAUTION

Turn off the power before you connect or discon-

nect the power cord.

Turns the power supply on [ ] or sets it to standby [

First, turn on the power of the connected sound source

(external device), then the unit. When turning off the

power, reverse the order by turning off the power of the

unit first and then the connected sound source (external

device).

NOTICE

Even when the switch is in the standby position, a small

amount of electricity is still flowing to the unit.

NOTE

• Rapidly turning the unit on and off in succession can cause it to

malfunction. After turning the unit off, wait for about 5 seconds

before turning it on again.

• If you are using multiple units, turn on the power to each unit

one by one. If you turn on the power to multiple units simultane-

ously, a temporary drop in the power voltage may occur, possi-

bly resulting in abnormal operation of the units.

Controls and Connectors