Yamaha DBR12 Owner's Manual - Page 2

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Yamaha DBR12 Owner's Manual
Rear
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5
Bottom
• Owner's manual (this leaflet)

Controls and Connectors

1
Input jacks (CH1 and CH2)
These are balanced combo jacks that support both XLR and phone plugs (both CH1 and CH2), and RCA-
pin plugs (CH2 only). For the combo jacks, connect a mixer, microphone, or digital musical instrument
such as a keyboard. For RCA-pin jacks, connect a device such as an MP3 player or a CD player. For
devices with high level signals such as a mixer, connect to CH2, or connect to CH1 then set the [MIC/
LINE] switch (
C
6
2
[LEVEL] knobs
Adjust the level of each input jack (
3
[MIC/LINE] switch
7
Set this switch to [MIC] or [LINE] for the CH1 jack, depending on the level of the input signal. For low-
level signals (such as microphones), set the switch to [MIC]. For high-level signals (such as mixer), set the
8
switch to [LINE].
4
Output switch
Selects the output signal sent to the output jack (
9
[CH1 THRU]: Delivers the direct output signal of CH1 only. Signal from CH2 will not be output.
[CH1+2 MIX]: Outputs the mixed signals of CH1 and CH2.
5
Output jack
This is a balanced XLR jack. This can be used to connect another DBR speaker. Outputs the signal
selected by
0
6
[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.
A
Note Integral power consumption refers to the sum of power provided to the speaker driver per unit time.
7
[SIGNAL] indicator
Indicates (lit in green) when an audio signal exceeding the threshold has been detected.
8
[PROTECTION] indicator
B
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 indicator turns off when the power supply has started normally.
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.
9
[POWER] indicator
Indicates (lit in green) when the [ /
C
0
[D-CONTOUR] indicator
Indicates (lit in yellow) when the [D-CONTOUR] switch (
A
[D-CONTOUR] switch
D
Selects one of the D-CONTOUR (Dynamic CONTOUR) presets.
[FOH/MAIN]: Boosts the high and low frequency components so that the frequency response is suitable
for a main speaker.
E
[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.
B
[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].
C
Vent
The unit contains a cooling fan. Since the air for cooling is taken in and expelled here, be careful not to
block this vent.
D
[AC IN] socket
Connect the supplied power cord here. First connect the power cord to the unit, then plug it into an
appropriate AC power outlet.
CAUTION
Turn off the power before you connect or disconnect the power cord.
E
[ /
] (power) switch
Turns power to the unit on [ ] or off [
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).
F
CAUTION
Even when the switch is in the off position, a small amount of electricity is still flowing to the unit. If it will not be used for an
extended period of time, therefore, be sure to unplug the power cord from the wall AC outlet.
Note • Rapidly turning the unit on and off in succession can cause it to malfunction. After turning the unit off, wait for
G
• If you are using multiple units, turn on the power to each unit one by one. If you turn on the power to multiple
F
Screw holes (M8)
Use these M8 size screw holes for installing separately sold brackets or commercially available eye bolts.
G
Pole socket
This socket adapts to commercially available speaker stands and speaker poles of 35 mm diameter.
3
) to [LINE].
XLR
Phone
1
).
5
).
4
output switch.
E
] (power) (
) switch is turned on.
]. First, turn on the power of the connected sound source (external
about 5 seconds before turning it on again.
units simultaneously, a temporary drop in the power voltage may occur, possibly resulting in abnormal operation
of the units.
RCA-pin
A
) is set to [FOH/MAIN] or [MONITOR].