Shure 709 User Guide

222

HARTREY

AREA CODE 3121866-2200 . CABLE: SHUREMICRO

TWX: 910.231-0048 TELEX: 72-4381

AVE.,

EVANSTON.

IL.

60204

U.S.A.

OPERATION AND SERVICE INSTRUCTIONS

MODEL

709

rnGiim3imTM

SPEAKER SYSTEM

DESCRIPTION

The Shure Model 709 PRO MASTERTM Speaker System

-a wide-range high efficiency, lightweight, portable, two-way speaker system- is an ideal companion unit to Shure's 700 Series PRO MASTER Power Consoles similar high-power amplifiers. The Model 709 provides high SPL sound reinforcement of wide frequency range program material in locations ranging from the largest clubs to the most intimate lounges. The speaker system consists of

cabinet and three piezoelectric horns.

The 709 system has a frequency response of 50 to 20,000 Hz and an impedance of 8 ohms. The system is designed to operate with amplifiers capable of delivering

up to 150 watts continuous to an 8-ohm load.

The 709 is constructed of 15.9 mm covered in scuff-resistant black vinyl. The black fabric grille is rugged, cleanable, and easily removable and re-

placeable. The corners of the cabinet are equipped with

steel protectors. The 709 weighs only 20.4 kilograms

(45 Ib) and can be easily carried by grasping the cabinet

at the top and sides of the horns. Proper lifting tech-

niques should be observed when handling any equipment of this size and weight.

A heavy-duty 15m (50 ft), 18-gauge, rubber-jacketed

connecting cable with phone plugs is supplied with the

speaker. A rugged vinyl slip-on protective cover with a

cable pocket is available as Model be wall-mounted using the optional Model Mount Swivel Bracket.

15-inch woofer in a front-ported bass-reflex

(5/8

in.) wood and

A709C. The 709 can

A112D Wall

SPECIFICATIONS

Power Rating

. . .

. . . .

.Maximum recommended ampli-

fier output to 8 ohms: 150 watts continuous, 34.6 Vrms, 55V peak

Impedance Frequency Response

Sound Pressure

Level (SPL)

Phasing (Polarity)

High Frequency

Section

Low Frequency

Section Horizontal Distribution. Vertical Distribution

Directivity Factor

Environmental:

Operating

Temperature

Storage

Temperature

Connectors Cable

Overall Dimensions

(including feet)

Weight Construction

. . . . . . . . . .

. . .

(Q)

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.8 ohms nominal (see Figure

.50 Hz to 20 kHz (see Figure .EIA rating: 53 dB at 9.2m (30 ft)

1 milliwatt, equivalent to

from 102 dB at Im (3.3 ft) with

I-watt input

.Positive voltage on phone jack

tip produces positive sound pressure

.Three piezoelectric horns .15-inch woofer

120' (see Figure 3)

.SO0 .6.3 at 2 kHz

7 to 43OC (20 to 11

. .

-29 to 7I0C (-20 to 160°F)

.Two parallel-wired phone jacks

. .

(50 ft), 18-gauge,

.15m

jacketed, with phone plugs

.638 mm H x 584 mm W x 402

mm D (25-1/8 in. x 23 in.

15-13/16 in.)

.20.4 kg (45 Ib)

.15.9 mm (5/8 in.) wood, black

vinyl covering, black fabric grille, steel corner protectors,

plastic feet

rubber-

27A8002

(TJ)

1980,

Shure

Brothers

Inc.

Printed

U.S.A.

Optional Accessories

TYPICAL IMPEDANCE CURVE

A709C, Protective Slip-On Cover

with Cable Pocket; Wall-Mount Swivel and Tilt

Bracket;

former

FREQUENCY IN HERTZ

FIGURE

A102A, 70-volt Trans-

A112D,

units). The angle of tilt (assuming a single speaker to each side of the sound source) should be such that you can look into the center of the speaker from the last rows of the audience area.

If it is desirable to elevate the 709, adequate support for heights up to about one meter (three feet) can usually be obtained using a sturdy table or bench. The surface must be capable of supporting the 20.4 kg (45 Ib) weight of the speaker.

For greater elevations, the optional accessory Model A112D Wall Mount Swivel Bracket is designed to support the 709 for wall mounting only. It is important to note that the 709 is not designed for mounting by simple chains or cables to the cabinet top or sides. If the 709 must be supported by chains or cables, encircle or cradle it.

WARNING

It is extremely important that both the mounting surface and the mounting hardware are adequate to support the weight of the speaker. Inadequate support may result in a hazardous operating condition. Whatever mounting means are employed, support should be provided for a speaker static load of

81.7 kg

20.4 kg (45 Ib).

(180 Ib). Actual weight of the speaker is

TYPICAL FREQUENCY RESPONSE

FIGURE

LEGEND LEGEND

-----

500

. .

. . . .

. .

TYPICAL POLAR PAllERNS

FIGURE

INSTALLATION

General

Maximum coverage for source-oriented installations is generally obtained with the speakers on both sides of the sound source and as far forward as possible. Each speaker is tilted slightly either downward (for wall- or

ceiling-mounted units) or upward (for floor-standing

HOOKUP

Amplifiers

The 709 is designed for use with the Shure 700 Series Power Consoles and similar amplifiers having the following maximum power output capabilities.

8 ohms 4 ohms

(55V peak)

Speaker Wiring

Fifteen meters (50 ft) of cable is supplied with each 709 Speaker System. For convenient attachment, a straight phone plug and a right-angle phone plug are provided. Connect either end to the back of the speaker and to the Power Consoie amplifier. The supplied cable

is 18 gauge (No. 18 AWG) and can be used for cable runs of up to 15m (50 ft) between the speaker and the amplifier. If cable runs longer than 15m are required, use the following table to determine the correct wire gauge.

Maximum

Distance From

Power Console Amplifier Wire Gauge Recommended Cables

15m (50 ft) AWG 18 Belden 30m (1 00 ft) AWG 16 Belden #8470, #8471, 60m (200 ft) AWG 14 Belden

#8460, #8461,

#9470, #8542

8472

#8473

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