SI-X

SI-X SeriesTM

SI-10X
SI-12X
SI-15X
SI-28X
SI-12BX
SI-15BX
SI-18BX

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SI-X Series
TABLE OF CONTENTS
Page
Important Warnings & Safety Instructions
2……………………….………Introduction/ Overview
2……………………………….What about the SI-X™ Series?
3…………………………….…Features
4……………………………….Setting up/ Speaker Placement
5……………….………………Connections/ Wiring
6…………..……………..…….Specifications
7…………………………….…Dimensional Drawings - SI-10X
8…………………………….…Dimensional Drawings - SI-12X
9…………………………….…Dimensional Drawings - SI-15X
10……………………………. Dimensional Drawings - SI-28X
11…………..………………….Dimensional Drawings - SI-12BX/ 15BX
12…………..………………….Dimensional Drawings - SI-18BX
13..………………………….. Warranty

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SI-X Series
IMPORTANT WARNINGS & SAFETY INSTRUCTIONS

1. READ ALL INSTRUCTIONS carefully and become familiar with the features andfunctions of these products before operating them.
2. RETAIN THESE INSTRUCTIONS for future reference.
3. COMPLY WITH ALL WARNINGS – All warnings and instructions for this productshould be adhered to.
4. USE WITH AMPLIFIERS – In order to avoid damage to drivers and other equipment, it
is advisable to establish and follow a routine for powering up and powering down a soundsystem. With all system components connected, turn on source equipment (mixers, signal
processors, record and playback units, etc.) BEFORE powering up amplifiers. Transient
voltages from powering up source equipment can damage speakers if amplifiers arealready turned on. Make sure that amplifier volumes are set to their minimum settings andpower up any system amplifiers LAST. It is recommended that all system components beallowed to stabilize for several seconds before any source signals are introduced or levelsetting adjustments are made. Similarly, when shutting systems down, turn all amplifiers
off first, before powering down any other system components.
5. CABLES – Do not use shielded or microphone cables for connection between
amplifiers and speakers. Use only approved speaker cables with proper connectors.
6. RIGGING – SUSPENDING – MOUNTING – Rigging, suspending and mounting ofthese speaker systems can expose members of the public to serious health risks andeven death. UNDER NO CIRCUMSTANCES ATTEMPT TO RIG, SUSPEND OROTHERWISE MOUNT THESE SPEAKERS UNLESS YOU ARE FULLY QUALIFIEDAND CERTIFIED TO DO SO BY RELEVANT LOCAL, STATE AND NATIONALAUTHORITIES. ALL RELEVANT SAFETY REGULATIONS MUST BE FOLLOWED. IFYOU ARE NOT PROPERLY QUALIFIED OR DO NOT KNOW OF PERTINENTREGULATIONS, CONSULT QUALIFIED PERSONNEL FOR ADVICE.
7. CAUTION – These professional loudspeaker systems are capable of generating veryhigh sound pressure levels. Use care with placement and operation to avoid exposure toexcessive volume levels. Permanent hearing damage can result when operated toextreme levels.
8. SERVICE – There are no user serviceable parts inside this product. Users should not
attempt to service this product. Warranty nullification could result if this is attempted.

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SI-X Series
INTRODUCTION
Thank You
Wharfedale SI-X™ Series loudspeakers are the result of many years of experience in the use, design andmanufacturing of professional loudspeaker products. We take great pride in engineering and building every
Wharfedale Pro loudspeaker and wish to thank you for entrusting us with your sound.
From the time Gilbert Briggs built his first loudspeaker in 1932, to the present, Wharfedale Loudspeakers
have maintained the same standard of quality in components, workmanship and performance. Actually,
Wharfedale is one of a few present day manufacturers that design, engineer and build all of their own
transducers.
Please take a few minutes to read this manual completely in order to ensure that you get the most out ofyour SI-X™ Series Loudspeaker system.

SI-X™ SERIES OVERVIEW:
The SI-X™ Series are powerful, accurate, high quality loudspeaker systems with low distortion that were
designed to deliver high quality sound for the best value. From the SI-10X to the SI-15X plus three highpower subs, you have what it takes to assemble the system that your music deserves.
An important factor in loudspeakers is the smoothness of the sound coverage. Many speakers that may
sound acceptable in the horizontal plane have problems in the vertical plane. The SI-X™ speakers exhibit
very smooth and well-behaved sound dispersion characteristics in both the horizontal and vertical planes
making positioning and set-up less critical. Everyone in the room will hear the same quality sound. Becauseof the multi-faceted cabinet design, the SI-X speakers can be positioned on the floor as a stage monitor ormounted on a wall or ceiling (using the U-shaped brackets included with the speaker).
The SI-X™ Series rugged cabinets feature 20 x M8 threaded inserts to facilitate the safe installation of theloudspeaker. See pages 7 and 8 for details on the configuration of the M8 inserts.

WHAT ABOUT THE SI-X SERIES?
Wharfedale SI-X™ Series foreground/back-ground music and sound reinforcement speakers are designedfor demanding professional installations, i.e. venues as diverse as live performance halls, airports, housesof worship, schools, retail shops, restaurants and public houses.
The SI-X™ Series loudspeakers are high quality speaker systems designed to provide the best sound in a
powerful, feature laden, easy to use package. They are designed to provide transparent and accuratesound reproduction or reinforcement. The 25.4mm (1”) Titanium high frequency drivers project crystal clear
high frequencies. A proprietary 70° x 70° High Frequency Horn delivers the high frequencies in a welldefined, even coverage pattern. Dynamic passages, such as the crack of a snare drum or the report of acannon, come through just like the real thing.

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SI-X Series
FEATURES
2-way reflex systems
Folded horn and Direct Radiating subwoofers
25.4mm Titanium high frequency compression drivers
Low distortion, high power woofers
70º x 70º High Frequency Horndurable MDF enclosure
Twenty (20) M8 hanging points to facilitate safe rigging
NL4 & Barrier Strip speaker inputs for flexibility
U-shaped steel mounting bracket included3

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SI-X Series
SETTING UP/ SPEAKER PLACEMENTThe uniform dispersion of the SI-X™ Series makes it easy to position the speakers where you need them,rather than trying to rearrange the room to accommodate the sound system. And the multi-faceted cabinetwith mounting hardware makes the job of installing the speakers that much easier. For the best coverageand highest quality sound, the speakers should be located above head level.
You don’t think you are getting all the bass you need? The SI-X series has three (3) subs can help: SI-12BX& SI-15BX are folded horns that give you the lowest frequencies and the punch you need. The SI-18BX is astraight forward, no nonsense 18-inch bass reflex subwoofer with exceptional low frequency response.

CONNECTIONS/ WIRING
Connecting the SI-X™ Series to your system is easy. The rear panel includes two (2) parallel NL4 and abarrier strip connector. Run your speaker wires from your amplifier to the speaker; you can use either input
connector. Use the correct gauge of stranded insulated speaker cable according to the power handlingability of your SI-X™ Series cabinet. It is always advisable to use heavier gauge (lower number) cables on
longer runs. Be sure to connect your speakers in proper polarity (what many refer to erroneously, asphase). This means that in normal operation, connect one end of the same wire to the + or Red terminal on
the amplifier and the other end to the +1 or ‘+’ terminal of the barrier strip on the speaker. The other wire isconnected to the –1 pin on the NL4 or the ‘–’ (negative) terminal on the barrier strip.
If you are using the SI-12BX, SI-15BX or the SI-18BX subwoofers, you must use an external crossover;passive or active. See the frequency response data for each model in the SPECIFICATIONS section of thismanual on the following page. You will need to use another amplifier – one channel for the mid/highspeaker (high pass) and another channel for the low pass (subwoofer).
Generally speaking, electronic crossovers using 24 db/octave Linkwitz Riley filters is a good beginning. For
example: to use the SI-15BX with the SI-15X, set the low pass output to 250 Hz and the High Pass to250Hz. Consult the Crossover manual (such as Wharfedale WPG-202) for details on setting the crossoverparameters.

Connections to SubwoofersYour Si-X™ Subwoofers are intended to be used with full electronic crossovers.
Note - There are No Low Pass or Hi-Out crossovers in the subwoofers.
We recommend the use of our electronic crossover WPG-202 or similar as required.

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SI-X Series

SPEAKON CONNECTIONBARRIER STRIP CONNECTION

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SI-X Series
Dimensions

SI-10X

512.00301.50134.00294.00

2.
2200

.
8500

1524.00

275.007

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SI-X Series
Dimensions

187.50127.50562.00324.50SI-12X

344.00

261.

0.000

721576.00

300.008

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SI-X Series
Dimensions

SI-15X

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SI-X Series
Dimensions

SI-28X

250.008.
1850

291.50 194.00

150.506.

0015265.00

689.00675.00250.0010

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SI-X Series
Dimensions

SI-12BX

302.00548.00650.00266.00670.00SI-15BX

850.0011

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SI-X Series
Dimensions

SI-18BX

537.00620.00508.0012

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SI-X Series

WHARFEDALE PRO LIMITED WARRANTY

Wharfedale Pro SI-X™ Series speakers are warranted of manufacturing ormaterial defects for a period of one year from the original date of purchase.
In the event of malfunction, contact your authorized Wharfedale Pro dealer
or distributor for information.
*Be aware that warranty details may differ from country to country. Contact
your dealers or distributor for information. These terms do not infringe yourstatutory rights

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