Yamaha DXS18 Owner's Manual

POWERED SUBWOOFER
Owner's Manual
DXS18
• The DXS18 is mainly used for the explana-
tions in this manual.
DXS15 mkll
• The illustrations as shown in this manual are
for instructional purposes only.
• The company names and product names used
DXS12 mkll
in this manual are the trademarks or registered
trademarks of their respective companies.
Introduction
Thank you very much for purchasing the DXS Powered Subwoofer. The DXS is a powered subwoofer used
for sound reinforcement and temporary installations. This owner's manual explains how to set up and use
the subwoofer in live venues and temporary PA installations to enhance low-end sound. Be sure to read this
manual before using this subwoofer, in order to make sufficient use of the many functions that this product
offers. Also, be sure to keep this manual after you are finished reading it.
Included accessories Optional accessories
• AC power cord • Speaker cover: SPCVR-18S01 (for DXS18), SPCVR-DXS152 (for DXS15mkII), SPCVR-DXS122 (for DXS12mkII)
• Owner's manual (this leaflet) • Wheels: SPW-1; 4 pieces
• Technical Specifications
w
q
r
e
q Pole sockets u INPUT jacks
Adapts to commercially available speaker poles of 35 mm diameter and These are balanced input XLR jacks (line-level), and this device outputs
M20 screws. For details on installing speaker poles, refer to "Installing the mixed signals of L and R.
a Speaker Pole."
i OUTPUT jacks
w Feet cups
These are balanced output XLR jacks for connecting full-range speak-
When stacking multiple DXS units, align the rubber feet of the upper ers or additional DXS units. The output signal can be switched via the
DXS unit to the feet cups of the lower. THROUGH/HPF POST switch (o).
L/R output from the OUTPUT jacks correspond to L/R input to the
CAUTION
INPUT jacks. The mixed signal of L/R is not output.
Do not stack more than two DXS units.
o THROUGH/HPF POST switch
Switches the signals output from the OUTPUT jacks (i).
e Front LED
Turns on when the power is on. Lights more brightly when the output
limiter is active. Using FRONT LED DISABLE switch (!9 ) allows you
to defeat the front LED altogether.
• THROUGH: Outputs unaffected signals from INPUT jacks (u).
r Wheel mounting holes
Select when using HPF of the connected speaker or connecting addi-
Optional SPW-1 wheels can be installed at these locations. For details
tional DXS units.
on installing the wheels or special precautions you should take, please
• HPF POST: Outputs signal input from INPUT jacks (u) after pass-
refer to the relevant manual for the wheels.
ing through a HPF. The cutoff frequency of the high pass filter is the
t AC IN inlet (V-Lock)
frequency specified with the X-OVER switch (!2 ) . Because the out-
Connect the AC power cord included with the unit. The AC power cord
put level from the OUTPUT jacks is linked to the LEVEL control
includes a locking mechanism with a latch. First connect the DXS to the
(!1 ) , the levels of this unit and the full-range speaker change simulta-
AC power cord, and then connect the power cord to the AC outlet.
neously.
When removing the cord, push the latch while pulling the cord out.
!0 PEAK indicator
CAUTION Lights red when the input level reaches 3 dB below clipping. If the indi-
cator lights frequently, adjust the volume of the input source or lower
Turn off the power before you connect or discon-
the LEVEL control (!1 ) so that the indicator flashes only briefly at the
nect the power cord.
highest input levels.
y Power switch
!1 LEVEL control
Turns the power to the unit on ( ) or off ( ).
Adjusts the output level.
If you are using multiple units, turn on the power to each unit one by
!2 X-OVER switch
one. If you turn on the power to multiple units simultaneously, a tempo-
Specifies the crossover frequency at 120 Hz, 100 Hz, or 80 Hz. The out-
rary drop in the power voltage may occur, possibly resulting in abnor-
put from the unit is processed through a low pass filter to cut the range
mal operation of the units.
of the selected frequency or higher. When setting THROUGH/HPF
Also, rapidly turning the unit on and off in succession can cause it to
POST switch (o) to [HPF POST], the output signals from the OUT-
malfunction. After turning the unit off, wait for about 5 seconds before
PUT jacks are processed through a high pass filter to cut the range of
turning it on again.
the selected frequency or lower, and the crossover frequency is linked to
CAUTION that of the connected speaker.
A slight electrical current will flow even when the
power switch is turned off. Make sure to unplug
the power cord from the power outlet when not
using the speaker for an extended period of time.
1
ZZ20050 Features
EN

High power, high sound pressure, superior low-end playback capabilities
Adopting a bandpass type enclusure for high sound pressure. The DXS features a high-resistance input,
low distortion woofer and a 1,020 W power amplifier to achieve superior low-end playback capability
and high sound pressure.

Flexible features
• D-XSUB: D-XSUB is a DSP technology that gives users additional dynamic control of the frequency
range to meet the demands of a variety of applications or musical styles.
• Selectable X-OVER (80/100/120 Hz): Selecting the cut-off frequency and LPF/HPF settings offers
users more flexibility to adapt to various applications.
• Cardioid mode: The Cardioid mode setting adds additional control of low frequencies for sub-woofer
arrays of two or more DXS speakers, effectively reducing the SPL of bass directed towards the stage
while increasing the bass levels directed towards the audience.

Reliability
A high-performance DSP control protects the speaker and amplifier. The DXS can be used worry-free,
even under harsh operating conditions.

Durability
The DXS's sturdy plywood cabinet is covered with an extremely durable polyurea finish that provides
added protection from outside elements.

Fast and easy setup
M20 and Ø35 mm dual pole sockets allow for more flexible set up, while optional casters are also avail-
able for improved portability.
Controls and functions
u
!0
!1
o
!2
i
t y
!3 D-XSUB switch
Switches the low-range frequency response characteristics.
• NORMAL: A generic setting corresponding to various applications.
• BOOST: Boosts the frequency range enhancing and providing punch
to the sound.
• XTD LF (eXTenDed LF): Extends the bottom of the low frequency
range.
!4 CARDIOID switch
Connection of multiple DXS units enables the use of Cardioid mode.
For details on Cardioid mode and using the switch, refer to "Setup of
Cardioid Mode" on the opposite page.
!5 POLARITY switch
CAUTION
Switches the polarity of the unit, normal or inverted. When the polarity
Make sure to lower the input level when switching.
is inverted, the INVRT indicator lights.
In most cases, this should be set to normal; however, the inverted setting
may improve low-range response, depending on the type and location of
the speaker system. Select a setting that produces the best low-end
sound.
!6 LIMIT indicator
Lights when the output limiter is active. The output limiter operates in
order to protect the speaker and amplifier, attenuating the output signal
to the amplifier. If the indicator lights frequently, adjust the volume of
the input source or lower the LEVEL control (!1 ) so that the indicator
only occasionally lights at the highest input levels.
!7 PROTECTION indicator
Lights when the protection system is active. The protection system
operates and the speaker output is muted in the following situations.
• If amplifier overheating is detected.
• If overcurrent is detected.
• Immediately after turning the power on. (The protection system is
activated to prevent noise and the indicator lights for about two sec-
onds. The indicator turns off when the power supply has started nor-
mally.)
!8 POWER indicator
Lights when the power is on.
!9 FRONT LED DISABLE switch
Turns the FRONT LED at the front of the unit on or off. The LED lights
when this switch is set to off. Turn this switch on to disable the LED.
Input the output signal from a source, such as a mixer, to the INPUT jack of the DXS, and input the output
signal from the OUTPUT jack of the DXS to the input jack of a full-range speaker.
• X-OVER switch (!2 )
It is recommended that you match the crossover frequency (the cutoff frequency of the low pass filter)
of the DXS and the cutoff frequency of the high pass filter of the full-range speaker. The same fre-
quency range output from the DXS and the full-range speaker may cause interference with each other
and degrade the frequency characteristics.
• THROUGH/HPF POST switch (o)
If the full-range speaker is properly equipped with a high pass filter, you should set this to
[THROUGH]. The [THROUGH] setting enables you to control the level independently and minimize
signal delay. If the full-range speaker is not equipped with a high pass filter or the high pass filter in the
full-range speaker cannot be set to the same cutoff frequency as that of the low pass filter of the DXS,
set this to [HPF POST] to use the high pass filter in the DXS.
 Combination and setting examples
Full-range
speaker
Full-range
speaker
From
DXS
mixer
CAUTION
If multiple powered speakers are connected in daisy-chain fashion, turn each device on
in sequence starting from the one nearest to the sound source, and turn them off start-
ing from the one farthest from the sound source.
Combination of monaural DXS and stereo full-range speakers
Full-range speaker
!6
!7
!8
!9
!5
!3 !4
Combination of stereo DXS and stereo full-range speakers
NOTE
The L and R jacks are interchangeable; there is no difference in behavior between them.
Full-range speaker
DXS
Basic Setup
This is a pole socket used to mount a full-range speaker atop the DXS. The pole socket is compatible with
35 mm or M20 speaker poles, available commercially. When using the pole socket, be sure that the follow-
ing conditions are met.
DXS18
DXS15mkII
Using the high pass filter in the Using the high pass filter in
connected full-range speaker the DXS DXS12mkII
Installing optional wheels SPW-1 at the back of the DXS enables you to transport the unit easily. To install
the wheels, use the screws already installed in the DXS unit.
!2 !2
Please do not use the speaker once the screws are removed. This causes air leaks to occur in enclosure,
o o
resulting in undesirable performance.
Full-range speaker
From mixer
DXS
Power does not turn on.
Power suddenly turned
off.
No sound.
To full-range speaker
Sound is interrupted
Mixer
suddenly.
Sound howls (feed-
back).
The sound from each
speaker differs (if multi-
ple speakers are used.)
Sound is distorted.
* If any specific problem should persist, please contact your Yamaha dealer.
From mixer
System Type
Frequency Range (-10 dB)
Measured Maximum SPL (Peak)
Full-range speaker Pink Noise @1m
Power
Amplifier
Components
Dimensions
To full-range speaker
(W × H × D; including rubber feet)
Weight
Handles
Pole Sockets (top surface)
Connectors
Input Sensitivity (LEVEL: center)
DXS
Maximum Input Level
Mixer
* The contents of this manual apply to the latest specifications as of the publishing date.
To obtain the latest manual, access the Yamaha website then download the manual file.
Installing a Speaker Pole
Ø35 M20 screw
Subwoofer Top-mounted speaker Pole length
Weight 28.0 kg or less, height 76 cm or less (DSR115) 120 cm or less
Weight 19.3 kg or less, height 61 cm or less (DXR12) 100 cm or less
Weight 14.6 kg or less, height 51 cm or less (DXR10) 82 cm or less
Weight 13.5 kg or less, height 46 cm or less (DXR8) 90 cm or less
Installing Wheels
CAUTION
• For details on installing the wheels or special precautions you should take, please
refer to the relevant manual for the wheels.
• Do not install wheels other than the SPW-1.
Troubleshooting
Symptom Possible causes Possible solution
The power cord is not con-
Connect the power cord properly.
nected properly.
The protection system has
Turn off the power, wait until the amplifier cools down,
been activated, shutting
and then turn on again.
down the power supply.
The cable is not con-
Connect the cable to the INPUT jack properly.
nected properly.
The protection circuit has Wait until the amplifier cools down. If the unit doesn't
been activated, muting the automatically reset itself, turn off the power, and then
output. on again.
A microphone is directed Keep the speaker away from the area where the
toward the speaker. microphone picks up the sound.
The settings for each Set each switch of each speaker to the same posi-
speaker differ. tion.
Lower the volume of the input device so that the
Input volume is excessive.
PEAK indicator lights only occasionally.
Output volume is exces- Lower the output level with the LEVEL control so that
sive. the LIMIT indicator lights only occasionally.
General Specifications
General Specifications DXS18 DXS15mkII DXS12mkII
Powered subwoofer, band-pass type
32 Hz–120 Hz 40 Hz–150 Hz 42 Hz–150 Hz
136 dB SPL 135 dB SPL 134 dB SPL
Dynamic 1,020 W
Power
Rating Continuous 800 W
Power Consumption
100 W
(1/8 output power)
18" cone, 15" cone, 12" cone,
LF
4" voice coil 2.5" voice coil 2.5" voice coil
563 × 683 × 721 mm 480 × 611 × 614 mm 400 × 567 × 570 mm
49.7 kg 36.0 kg
Steel, side × 2
Ø35 mm (depth: 80 mm), M20 (threaded depth: 25 mm)
Input XLR3-31 × 2
Output XLR3-32 × 2 (THROUGH or HPF POST)
Power IEC AC inlet × 1 (V-Lock)
+10 dBu
+24 dBu
30.0 kg