Yamaha R112 User manual

SPEAKER SYSTEMS
R112/R112C
R115/R115C
R215/R215C
R12M/R12MC
R15M/R15MC
SUBWOOFER
R118W/R118WC
Owner’s Manual
使用手卌
Thank you for choosing a YAMAHA speaker system.
In order to take full advantage of the superior
performance and features provided by these
speakers while ensuring maximum reliability and
longevity we urge you to read this manual
thoroughly before setting up and using your
speakers. Also, please keep the manual in a safe
place for future reference.
感謝您購買 YAMAHA 揚聲器系統。為了充分發揮這些
揚聲器的全部優點和卓越的性能 , 並確保可靠性和
長壽命 , 建議您在設定和使用揚聲器之前 , 請仔細
閱讀本使用手卌並妥為保管 , 以備今后查閱。
Contents
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Connection Examples . . . . . . . . . . . . . . . . . . . . . . 4
Full-range Connection . . . . . . . . . . . . . . . . . . . . 4
Using a Channel Divider and Subwoofers. . . . . . 5
Phone Plug Wiring . . . . . . . . . . . . . . . . . . . . . . . 5
Neutrik NL4FC Plug Wiring . . . . . . . . . . . . . . . . 6
Speaker Cable Selection . . . . . . . . . . . . . . . . . . . 6
Suspended Installation . . . . . . . . . . . . . . . . . . . . . . 6
Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
目錄
注意事項
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10
連接例 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
全音域連接 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
使用通道分頻器和副低音揚聲器
. . . . . . . . . . . . 12
耳機插頭接線
. . . . . . . . . . . . . . . . . . . . . . . . . . 12
Neutrik NL4FC 插頭接線
. . . . . . . . . . . . . . . . . . 13
揚聲器電纜選擇
. . . . . . . . . . . . . . . . . . . . . . . . 13
懸挂安裝
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
規格 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
技術資料
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
ENGLISH
漢語

2
ENGLISH
Precautions
WARNING
•If you notice any abnormality, such as smoke, odor, or noise,
turn the power amp off immediately. Remove the power cord
from the AC outlet. Consult your dealer for repair. Using the
unit in this condition is a fire and electrical shock hazard.
CAUTION
• When choosing a location for your speakers, avoid the fol-
lowing:
- Direct sunlight, high temperatures (such as near heaters),
or excessively low temperatures.
- High humidity.
- Areas subject to excessive dust accumulation and vibra-
tion.
- Non-level or unstable surfaces.
• To prevent short circuits or breakage of cables, always dis-
connect cables prior to moving system equipment.
•When using two or more speaker systems, be sure match the
polarity (+/–) of the speaker system connectors to those at the
amplifier. If the polarities do not match, the sounds produced
by the speakers will interfere with each other, making it im-
possible to achieve a well-balanced sound field.
• This unit is heavy. Use two or more people to carry it.
•To avoid damage to your speakers and other parts of your sys-
tem, when you turn on your system, ALWAYS turn the pow-
er amp on last! This will avoid loud, damaging pops that will
annoy your audience, and blow your speakers. When you
power down, the amplifier should ALWAYS be turned off
first to avoid the same problems.
•Always turn the power switches of system components OFF
prior to connecting or disconnecting cables. Failure to do so
may result in damage to speakers as well as to connected
equipment.
• Do not output distorted sounds for long periods of time, as
this will cause the speaker to heat up, leading to a fire hazard.
In case an abnormality occurs during operation
Installation Operation

3
ENGLISH
This product, when used in combination
with amplification and/or additional
loudspeakers, may be capable of produc-
ing sound levels that could cause perma-
nent hearing loss.
DO NOT operate at high volume levels
or at a level that is uncomfortable. If you
experience any discomfort or ringing in
the ears, or suspect an hearing loss, you
should consult an audiologist.
To protect your speakers
When choosing a power amplifier to use with your
speakers, make sure that its power output matches the
speakers’ power capacity (refer to the Specifications on
page 7). Even if the amplifier’s power output is lower
than the speakers’ PGM (program) power capacity, the
speakers may be damaged when clipping of a high input
signal occurs.
The following may cause damage to speakers:
•Feedback caused when using a microphone.
•Continuous high sound pressure level produced by
electronic instruments.
•Continuous high-power output distorted signals.
•Popping noises caused by turning on equipment, or
by connecting or disconnecting system components
while the amplifier is turned on.
Poly Switch
All full-range loudspeakers are fitted with a self-reset-
ting poly switch that protects the high-frequency driver
from damage caused by excessive power.
If a loudspeaker cabinet loses high-frequency output,
immediately remove power from the unit and wait for
two to three minutes. The should allow the poly switch
to reset. Re-apply power and check the performance of
the high-frequency driver before continuing with the
power reduced to a level that does not cause the poly
switch to interrupt the signal.
On the R118W/R118WC sub woofer, the Poly Switch
protects the woofer and a similar routine should be fol-
lowed if its output is lost.

4
ENGLISH
Connection Examples
■Full-range Connection
Each speaker features three input/parallel connectors – two 1/4" phone jacks and one
Neutrik NL4MP connector. Use either a phone jack or the Neutrik connector to receive
input from your sound system/power amplifier. One of the spare connectors can be used
to parallel-connect an additional speaker (keeping in mind the impedance
considerations mentioned below).
Impedance Considerations
We do not recommend connecting more than two 8-ohm speakers in parallel. Two
parallel-connected 8-ohm speakers have a total impedance of 4 ohms, which is the
minimum that should be connected to one amplifier output channel. The R112/R112C,
R115/R115C, R12M/R12MC, R15M/R15MC and R118W/R118WC are 8-ohm speakers,
and two of these can safely be paralleled on one output. The R215/R215C, however, has
an impedance of 4 ohms and should not be parallel-connected with another R215/
R215C or any other model.
MIXING
CONSOLE
GRAPHIC
EQUALIZER
SPEAKER
SYSTEMS
L
R
L
R
SPEAKER
SYSTEMS
DAISY-CHAINED
POWER
AMPLIFIER
L
R
PhonesNeutrik
NL4MP

5
ENGLISH
■Using a Channel Divider and Subwoofers
Using a channel divider in a multi-way system like the one shown in the diagram can
provide superior dynamic range and overall sound quality. The channel divider divides
the line-level audio from the preamplifier or mixing console into separate frequency
bands that are then sent to separate power amplifiers. The power amplifiers drive
speaker systems selected for optimum performance in the corresponding frequency
ranges.
■Phone Plug Wiring
Phone plugs for connection to the phone
jack inputs should be wired as shown to
the right. Be sure to use proper speaker
cable – NOT shielded instrument or line
cable – for all speaker connections.
MIXING
CONSOLE
TWO-CHANNEL
GRAPHIC
EQUALIZER
LEFT
INPUTS
RIGHT
CHANNEL
DIVIDER
LEFT
HIGH
RIGHT
INPUT
TO POWER
AMP INPUTS
LEFT
RIGHT
LOW INPUT
TWO-CHANNEL
POWER AMPLIFIER
TWO-CHANNEL
POWER AMPLIFIER
OUTPUT
OUTPUT
SPEAKER SYSTEMS
SPEAKER SYSTEMS
R118W/R118WC
R118W/R118WC
L
R
L
R
L
R
L
R
L
R
L
R

6
ENGLISH
■Neutrik NL4FC Plug Wiring
If you will be using the Neutrik
connectors for speaker input, wire the
plugs as shown to the right . Be sure to
use proper speaker cable – NOT
shielded instrument or line cable – for all
speaker connections.
■Speaker Cable Selection
Speaker cables must carry a significant amount of current in order to drive a high-power
speaker system. For this reason it is important to use heavy-gauge speaker cable for all
speaker connections. Other types of cable can dramatically limit performance as well as
being a fire hazard.
Suspended Installation
1The R112/R112C and R115/R115C can
be used in suspended “flying” rigs by
using optional long eye bolts (M10) and
an appropriate suspension wire. For this
type of installation replace the three bolts
on the top and back of the speaker with
the long eye bolts.
2Refer to the diagram to the right for
suspended installation details. Make sure
that all wire and fittings used – including
the ceiling structure – are strong enough
to support the speakers.
Suspension Cautions
• Installation should be carried out by experienced personnel.
• Some fittings may deteriorate due to wear or corrosion over extended periods of time.
The installation should be checked thoroughly at regular intervals for safety.
• Use only the specified M10 long eye bolts.
• Always suspend the speakers using all three long eye bolts.
• Never use the speakers' handles as suspension points.
2– (NO USE)
2+ (NO USE)
1+ : HOT(+)
1– :COLD (–)
Neutrik NL4FC connector
M10 long eye bolts(Optional)
Bolts
Maximum
45 Degrees

7
ENGLISH
Specifications
*: EIA RS-426
Specifications and descriptions in this owner’s manual are for information purposes only.
Yamaha Corp. reserve the right to change or modify products or specifications at any
time without prior notice. Since specifications, equipment or options may not be the
same in every locale, please check with your Yamaha dealer.
Model R112/R112C R12M/R12MC R115/R115C R15M/R15MC R215/R215C R118W/
R118WC
Type 2Way Bass reflex Bass reflex
Speaker Unit LF 12" Cone 15" Cone 15" Cone × 2 18" Cone
HF 1.75" v.c.Comp. Driver —
Frequency Range 55 Hz - 20 kHz (–10 dB) 50 Hz - 20 kHz (–10 dB)
40 Hz - 20 kHz
(–10 dB)
35 Hz - 3 kHz
(–10 dB)
Power
Capacity
NOISE*200 W 250 W 500 W 250 W
PGM 400 W 500 W 1000 W 500 W
MAX 800 W 1000 W 2000 W 1000 W
Nominal Impedance 8 ohms 4 ohms 8 ohms
Sensitivity 97 dB SPL (1W,1 m) 98 dB SPL (1W,1 m) 97 dB SPL
(1W,1 m)
Nominal
Dispersion
Horizontal 90˚ 40˚ 90˚ 40˚ 90˚ —
Ver tical 40˚ 90˚ 40˚ 90˚ 40˚ —
Cross Over Frequency 1.7 kHz 1.5 kHz —
Input Connectors SPEAKON NL4MP × 1, 1/4" Phone Jack × 2
Dimensions (W × H × D) 480 × 695 ×
400 mm
675 × 450 ×
380 mm
520 × 765 ×
470 mm
745 × 490 ×
400 mm
520 × 1175 ×
600 mm
562 × 811 ×
639 mm
Weight 26.5 kg 24.0 kg 35.0 kg 30.5 kg 69.0 kg 49.5 kg
Color Black
Mounting Screw M10 3points — M10 3points — — —
695
400
75˚ 105˚
480
R112/R112C
120˚
30˚
R12M/R12MC
675
450
380
765
470
75˚ 105˚
520
R115/R115C
490
400
120˚
30˚
745
R15M/R15MC
1175
600
77.5˚
102.5˚
520
R215/R215C
811
639
562
R118W/R118WC

8
ENGLISH
Technical Data
10k1k100
20
4
8
16
FREQUENCY (Hz)
RESPONSE (dB)
60
70
80
90
100
110
32
R115/R115C/R15M/R15MC
10k1k100
20
4
8
16
FREQUENCY (Hz)
RESPONSE (dB)
60
70
80
90
100
110
32
R118W/R118WC
10k1k100
20
4
8
16
FREQUENCY (Hz)
RESPONSE (dB)
60
70
80
90
100
110
32
R112/R112C/R12M/R12MC
10k1k100
20
2
4
8
FREQUENCY (Hz)
RESPONSE (dB)
60
70
80
90
100
110
16
R215/R215C

Yamaha Manual Library
http://www2.yamaha.co.jp/manual/english/
M.D.G., Pro Audio & Digital Musical Instrument Division, Yamaha Corporation
© 2002 Yamaha Corporation
209AP-01A0
Printed in China