Wharfedale Pro SIGMA Series Guide

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SIGMA Series

SIGMA-8 SIGMA-10 SIGMA-12 SIGMA-15 SIGMA-18B SIGMA-V4 SIGMA-V8

PROFESSIONAL SOUND SYSTEMS

OPERATING MANUAL AND USER GUIDE

TABLE OF CONTENTS

IMPORTANT WARNINGS & SAFETY INSTRUCTIONS....................................................................................... 1

SIGMA SERIES INTRODUCTION ........................................................................................................................ 2

KEY FEATURES .................................................................................................................................................... 2

INSTALLATION.................................................................................................................................................... 2

CONNECTIONS / WIRING .................................................................................................................................. 3

RIGGING / SUSPENDING ................................................................................................................................... 4

DIMENSIONAL DRAWINGS................................................................................................................................ 5

SPECIFICATIONS ................................................................................................................................................. 8

WARRANTY.......................................................................................................................................................... 9

IMPORTANT WARNINGS & SAFETY INSTRUCTIONS

• READ ALL INSTRUCTIONS - Become familiar with the features and functions of these products before operating

them.

• COMPLY WITH ALL WARNINGS - All warnings and instructions for this product should be adhered to.

• 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 sound system. 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 are already turned on. Make sure that ampliﬁer volumes are set to their minimum settings and

power up any system ampliﬁers LAST. It is recommended that all system components be allowed to stabilize for

several seconds before any source signals are introduced or level setting adjustments are made. Similarly, when

shutting systems down, turn all ampliﬁers oﬀ ﬁrst, before powering down any other system components.

• CABLES - Do not use shielded or microphone cable for connection between ampliﬁers and speakers. Use only

approved speaker cables with proper connectors.

• RIGGING, SUSPENDING, AND MOUNTING - Suspending and mounting of these speaker systems can expose

members of the public to serious health risks and even death.

Under no circumstances attempt to rig, suspend or otherwise mount these speakers unless you are fully

qualiﬁed and certiﬁed to do so by relevant local, state and national authorities. All relevant safety regulations

must be followed. If you are not properly qualiﬁed or do not know of pertinent regulations, consult qualiﬁed

personnel for advice.

• CAUTION - These professional loudspeaker systems are capable of generating very high sound pressure levels.

Use care with placement and operation to avoid exposure to exposure to excessive volume levels. Permanent

hearing damage can result when operated to extreme levels.

• 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.

Wharfedale Pro SIGMA Series are extreme power handling, ultra hardwearing loudspeakers in an aﬀordable

package built for a multitude of live sound applications. Our latest developments in loudspeaker technology

harness dual voice coil woofers reaching depths of 35Hz. These proprietary LF drivers are paired with 1.75”

Titanium Tweeters which throw high end to your crowd, while crossover points and acoustic charactaristics are

tuned by our experienced engineers for sonic accuracy. The cabinets adapt to multiple formations – M8 rigging

points, dual angle speaker poles and carry handles meet the varying demands of ﬁxed installation and touring with

our Rhino Rock ﬁnish and steel grilles providing protection for a lifetime of use.

INTRODUCTION

Very High SPL Output Capability

High Sensitivity & Dynamic Range

Custom 90 x 60 HF Waveguides

Custom High Output, Low Distortion Woofers

Custom Compression Drivers

Dual layer Voice Coils (Quad layer on SIGMA 18B)

Proprietary Rhino Rock Painted Enclosure

HF Protection Circuitry

Parallel Wired speakon Inputs

Dual Angle Pole Mount Receptacles (Excludes SIGMA 8)

KEY FEATURES

Before attempting to install a SIGMA Series Loudspeaker system please refer to the important warnings and safety

instructions. Only qualiﬁed personnel should install a loudspeaker system.

Improper installation of a loudspeaker system can cause serious harm and even death if correct procedure is not

followed. Anyone attempting installation assumes all liability arising from such use.

Speakers with dual angle pole mount sockets (SIGMA 10 / 12 / 15) have an sockets that angles the cabinet down by

10°.This allows more sound to be aimed directly at the audience and less at the ceiling, reducing early reﬂections.

Please ensure that the correct socket is used for each speaker.

INSTALLATION

Connecting the SIGMA Series to your system is easy. The input panel includes parallel Speakon connectors. 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 handling ability of your SIGMA 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, as phase).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 on the NL4 Connector. The

other wire is connected to the-1 pin on the NL4 CONNECTOR. Be sure to use high quality, low gauge (thick) speaker

wire and NOT shielded cable.

CONNECTIONS/WIRING

The SIGMA Series loudspeakers feature parallel wire inputs. Either input can be used for a simple system and 2

speakers can be parallel wired using a standard speaker cable. When Parallel wiring loudspeakers always take in

consideration the load you are putting on your ampliﬁer. 2 parallel wired SIGMA loudspeakers will produce a 4

ohm load.

SIGMA SERIES CONNECTION PANELS

To avoid any possible damage to your amp and speakers, be sure to check the owner’s manual of your power

ampliﬁer to conﬁrm it is capable of operating at 2 ohms. The SIGMA 18B has a High Pass output. The high pass

allows you to connect a full range SIGMA loudspeaker and subwoofer to one ampliﬁer channel with 4 ohm load

IMPORTANT NOTE

SIGMA-15 SIGMA-18B

SIGMA-8/10/12/15 Rear Pannel SIGMA-18B Rear Pannel

POWER HANDLING:

350 Watts Continuous

700 Watts Program

1400 Watts Peak

Impedance: 8 Ohms POWER HANDLING:

500 Watts Continuous

1000 Watts Program

2000 Watts Peak

Impedance: 4 Ohms

All full range SIGMA enclosures (except SIGMA-18B) include multiple M8 rigging points for fast, safe and secure

suspension.

Using Shoulder Eyebolts

Always apply the load to the bolt along the plane of the eye. For long term installation use a thread-locking

compound. Do not attempt to bend or otherwise deform any rigging hardware.

Please refer to the important safety warnings before you consider suspending any loudspeakers.

Each primary load bearing suspension point shall be rated for the total load.

(A minimum 5:1 Design Factor)

RIGGING/SUSPENDING

DIMENSIONAL DRAWINGS

SIGMA-8

SIGMA-10

DIMENSIONAL DRAWINGS

SIGMA-12

SIGMA-15

DIMENSIONAL DRAWINGS

SIGMA-18B

DIMENSIONAL DRAWINGS

SIGMA-V4

SIGMA-V8

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