Specifications

ManualsBrandsShure ManualsAmplifierSR105

222 HARTREY AVE.. EVANSTON, IL. 60204 U.S.A.

DATA

MODEL SR102 AND SR103

AREA CODE 3121866-2200

CABLE: SHUREMICRO

SHEET

SPEAKER COLUMNS

TWX: 910.231-0048 TELEX: 72-4381

OPERATION AND SERVICE INSTRUCTIONS

FIGURE A. SR102 SPEAKER COLUMN

DESCRIPTION

The Shure Model SR102 and SR103 Speaker Col-

umns are speaker systems designed for use with

Shure Model

SR105 or similar high-power amplifiers

in sound reinforcement applications. When properly

installed and connected, the

SR102 and SR103 Col-

umns will provide outstanding performance. Their wide

frequency range, distortion-free reproduction and high

sound penetration power make them a valuable asset

to any sound reinforcement system. The Columns may

be used with either direct

(4-

lo 16-ohm) or constant-

voltage 25- or 70-volt amplifier outputs.

Quality sound reproduction is achieved through the

use of two 10-inch and four

binch heavy-duty speak-

ers, plus two high-frequency speakers which combine

the functions of dome radiators and acoustic horn

radiators. The tuned-rear-port enclosure design con-

tributes to the highly directional pattern, which is

critical in achieving maximum audience penetration

and feedback reduction. The inductive-capacitive di-

viding networks maintain frequency-selective distribu-

tion of signals to the proper speakers.

The

SR102 Column

is a portable unit (see Figure

FIGURE

SR103 SPEAKER COLUMN

A), and is primarily designed for temporary installation

either indoors or in a protected outdoor environment,

such as under an open pavilion. The Column may be

operated vertically on its own feet, or in a tilted posi-

tion using an optional easel-type tubular stand (Shure

A3S-T). The

SR102 Column is supplied with a 15m

(50-foot), 18-gauge, rubber-jacketed connecting cable

with locking phone plugs. The lower rear section

the

Column contains a cable storage compartment. The

SR102 Column is covered with a tough vinyl surface,

front and rear metal grilles are finished in durable

black enamel, and trim is anodized to minimize visible

wear. A retractile handle and balanced design con-

tribute to ease of transporting.

The

SR103 Column

(see Figure

is a weather-

resistant unit, and is primarily designed for permanent

installation either indoors or in a protected outdoor

environment such as under the roof of an open pavil-

ion. Electrical components, hardware and enclosure

surfaces have been designed to maximize resistance

to adverse weather, with drain holes provided to min-

imize moisture accumulation. Adhesives used in the

SR103 Column are moisture-resistant and trim and

fastening hardware have a high corrosion resistance.

1980,

Shure Brothers Inc.

27A897

(TC)

Printed

U.S.A.

Summary of content (12 pages)

PAGE 1
2 2 2 HARTREY AVE.. EVANSTON, IL. 6 0 2 0 4 U.S.A. AREA CODE 3121866-2200 TWX: 9 1 0 . 2 3 1 - 0 0 4 8 . CABLE: SHUREMICRO TELEX: 7 2 - 4 3 8 1 I DATA SHEET MODEL SR102 AND SR103 SPEAKER COLUMNS OPERATION AND SERVICE INSTRUCTIONS FIGURE A. SR102 SPEAKER COLUMN DESCRIPTION The Shure Model SR102 and SR103 Speaker Columns are speaker systems designed for use with Shure Model SR105 or similar high-power amplifiers in sound reinforcement applications.
PAGE 2
SPECIFICATIONS SR102 SR103 --- Power Rating (Program Material) 100 watts max. (40-volt input, 16 ohms or 80-volt input, 64 ohms) Power Load for Constant-Voltage Operation 39 watts (25-volt input, 16 ohms) 78 watts (70.7-volt operation, 64 ohms) Impedance 16 ohms nominal (25-volt strapping) 64 ohms nominal (70.7-volt strapping) Frequency Response 100 Hz - 15 kHz (See Frequency Response, Figure C) 5 kHz Crossover Frequency Sound Pressure Level (SPL) EIA rating: 53 dB at 9.
PAGE 3
SPECIFICATIONS (CONT'D) SR102 SR103 Supplied Accessories One 15m (50-foot) heavy-duty cable with locking phone plugs - Optional Accessories A102A 70-Volt Transformer A3S-T Speaker Tilt Stand* A50XC 15m (50-foot) Extension Cable with male and female phone plugs A102A 70-Volt Transformer A103A Wall Mount Speaker Column Bracket * Do not use Shure A3S-S Tilt Stand; this stand will not fit the SR102 Column.
PAGE 4
119 mm (4-11/16 IN.) I L FIGURE E. 4 SR102 COLUMN OVERALL DIMENSIONS Direct Output Strapping To connect the SR102 or SR103 Columns for use with direct (4- to 16-ohm) amplifier outputs or standard constant-voltage, 25-volt lines, proceed as follows. The SR102 Column rear panel contains a terminal strip with six terminals (numbering, from left to right: -, 4, 3, 2, 1, +) and two parallel-wired phone jacks (see Figure G). The phone jacks are wired to correspond with the strapping of the terminal strip.
PAGE 5
70-Volt Output Strapping For 70-volt (series) operation, remove the two straps and insert one strap between terminals 2 and 3 only. (Retain the extra strap for possible future use.) This connection provides a total Column impedance of 64 ohms and a power rating of 100 watts when operated from a constant-voltage, 70.7-volt line. Note that this strapping allows the Column to be used directly on a 70-volt line without a transformer. The power drawn from the 70-volt line is 78 watts.
PAGE 6
If the Column is to be used at a low power on a constant-voltage, 70-volt system, a Shure A1 02A 70-Volt Transformer must be connected between the amplifier and Columns. WARNING If the A102A Transformer is to be mounted to the Column, it should be positioned at the lower rear, just above the jack panel, in order to improve Column stability.
PAGE 7
on which set of four speakers is suspect. Removal of these speakers will provide access to the wiring associated with the other speakers of that set. (NOTE: If a power screwdriver is used to remove the retainer strip screws, excessive force may loosen the teenuts and cause them to drop into the enclosure.) Remove the &inch speaker by removing the four locknuts and flat washers (using an 11/32" nutdriver), and gently lifting the speaker out and resting it on the baffle board. 6.
PAGE 8
HORN DIAPHRAGM 8 COlL ASSEMBLY CLEARANCE HOLES (3), TYPE I ONLY OR THREADED HOLES (3),TYPE I I ONLY 0 y I NUTS (3), TYPE I ONLY I I LOCATOR PINS (3) CLEARANCE HOLES (3) MOUNTING SCREWS (3) FIGURE L. DIAPHRAGM AND COlL ASSEMBLY REPLACEMENT The assembly is a delicate part. Do not touch the voice coil and bobbin, or allow it to come in contact with the work surface, tools, etc. If the assembly is placed on the work surface, rest it on the diaphragm with the voice coil upward. 8.
PAGE 9
REPLACEMENT PARTS LIST (see Figure M) Reference Designation Replacement Kit Consists Of: Replacement Kit No.* Qty. Part No. Description A l , A2 - Crossover Network Assembly (Capacitor, Inductor, Terminal Board) A3 - Rear Panel Assembly with connectors (SR102 only) Rear Panel Assembly with connectors (SR103 only) A3 A4 C I , C2 1 - Capacitor, Mylar, 1 pF, l o % , 250 WVdc Inductor, 0.
PAGE 10
REPLACEMENT PARTS LIST (see Figure M) Reference Designation (CONT'D) Replacement Kit Consists Of: Replacement Kit No.* Qty. Description Part No.
PAGE 11
ARCHITECTS' AND ENGINEERS' SPECIFICATIONS SR102 Speaker Column The Speaker Column shall be a portable speaker column designed for sound reinforcement applications. The Column shall utilize two 10-inch and four 8-inch cone-type speakers with a total speaker cone area of 1419 cm? (220 in2), and two high-frequency horn-type speakers. Pressure sensitivity of the Column shall be an EIA rating of 53 dB at 9.2m (30 feet) from 1 milliwatt (equivalent to 101 dB at 1.2111-4 feet-with a I-watt input).
PAGE 12
MODEL SR102 AND SR103 SPEAKER COLUMNS ACCESSORIES MODEL A102A 70-VOLT TRANSFORMER A high-efficiency, low-loss autotransformer that mounts easily on the back of any speaker or convenient surface to provide wattage taps of 50, 25, 12 and 6 watts in 70-volt distributed systems, and impedance taps of 8 and 16 ohms to accommodate a wide variety of speakers. Five-screw 70-volt terminal strip and threescrew impedance terminal strip.