Shure VA300-S Operating Manual

222 HARTREY AVE.. EVANSTON,

IL.

60204 U.S.A.

AREA CODE 3121866-2200 TWX: 910-231-0048 TELEX: 72-4381

CABLE: SHUREMICRO

OPERATING MANUAL AND

The Shure Model VA300-S Speaker Column has been designed to be used in conjunction with the Shure VOCAL MASTER@ Booster Amplifier. Used in this manner, the

VA3OO-S Speaker Column will provide an outstanding vocal reproduction system. Correct frequency range, distortion-free reproduction and enough sound power to penetrate large audience areas are features which contribute to its outstanding performance.

The

VA3OO-S employs two special 10-inch speakers and four special 8-inch speakers-a total speaker cone area of 2,310 Speaker Column delivers virtually uniform penetrating power over a 140" angle in the horizontal plane and a 65" angle in the vertical plane. The rear-ported enclosure of the VA300-S contributes to its highly directional pattern, which is critical in achieving maximum audience penetration and reduction of feedback.

When the stage, the speakers should be placed at the sides of the stage and as far forward as possible. With this setup, the entire stage area will be relatively free from acoustic feedback; also the illusion of sound coming from the center of the stage will be quite good except for the first few forward rows of seats.

The VA300-S Speaker Column may be used on its side, though this reduces the horizontal coverage and the penetrating power. In a low ceiling, small, intimate room such as a night club, horizontal mounting at or near the ceiling level may be very successful. (It is not recommended that the VA300-S Speaker Column be used on its side in larger rooms.) An alternate solution for this type of small room is to use Speakers.

Fifteen meters (50 ft) of heavy duty cable is supplied with each VA300-S Speaker Column. The end of the cable with the straight plug and locking ring connects to the amplifier; the end with the right angle plug con-

nects and locks to the Speaker Column. The cable can

be stored in the cable-well at the base of each column. Connect the cable from either of the phone jacks on the back of the amplifier. If both of the speaker jacks on the amplifier are being used for other speakers, then connect the speakers in cascade-that is, con-

nect the VA300-S Speaker cable to one of the unused

phone jacks on the rear of one of the other speakers.

The Shure VOCAL MASTER and POWER MASTER amplifiers are designed to deliver full rated power (100W) to an 8 ohm load. It is recommended that VA3OO-S Speaker Columns be used in pairs, each column having a nominal impedance of 16 ohms, which provides an impedance of 8 ohms when two are used.

Speaker loads of less than 5.3 ohms should not be

used with these amplifiers. No damage to the speakers or amplifier will occur but loss of power and thermal shutoff of the amplifier may result.

The following list shows the resultant impedance

loads obtained from a variety of speaker combinations.

MASTER@ Control Consoles or POWER

cm2 (358 inz) per column. The VA300-S

VA3OO-S Speaker Columns are used on

VA3Ol-S Monitor

MODEL VAJOO-S

SPEAKER COLUMN

SERVICE INSTRUCTIONS

IMPEDANCE

OHMS

QUANTITY

1 VA300-S 2 VA300-S 3 VA300-S 1 2 3 4 VA301-S*

6 1 VA3OO-S and 1 VA301-S*

1 VA300-S and 2 VA301-S* 1 VA300-S and 3 1 VA300-S and 2 VA300-S and 2 VA300-S and 2 VA301-S*

Any of the above combinations of speakers will provide loads suitable for use with the Shure VOCAL MASTER or POWER MASTER Amplifiers.

*The Shure VA301-S Speaker Column is intended pri-

marily for use as an speaker meets all of the criteria for an excellent vocal system speaker, its area of coverage is more localized than that of the VA300-S. An integral volume on the VA301-S permits its use on-stage as a monitor at the highest possible sound level without feedback.

be free from electrical and mechanical defects for a

period of one year from date of purchase. Please

retain proof of purchase date. This guarantee includes

all parts and labor. This guarantee is in lieu of any and all other guarantees or warranties, express or

implied, and there shall be no recovery for any con-

sequential or incidental damages.

If outside the United States, return the unit to your dealer or Authorized Shure Service Center for repair. The unit will be returned to you prepaid.

and

SPEAKER

VA301-S* VA301-S* VA3Ol-S*

VA301-S* VA301-S*

This Shure product is guaranteed in normal use to

Carefully repack the unit and return it prepaid to:

Shure Brothers Incorporated Attention: Service Department 1501 West Shure Drive Arlington Heights, Illinois 60004

MODEL

VA301-S*

"on-stage monitor." While this

GUARANTEE

SHIPPING INSTRUCTIONS

(NOMINAL)

5.3 32 16

10.6

6.4

5.3

10.6

6.4

5.3

6.4

5.3

control

27A908

1979,

(SF)

Shure

Brothers

inc.

Printed

U.S.A

SPECIFICATIONS

Power Rating: 100 watts Impedance: 16 ohms Frequency Response: Horizontal Distribution:

Vertical Distribution:

Dimensions:

Weight: 31.8 kg (70 Ib) (including cable) Construction and Finish:

Supplied Accessories: 50-foot, No. 18 gauge, 2-con-

Optional Accessories:

VA300-S SPEAKER SERVICING:

1. Unplug cables from speaker jacks.

2. Using an ohmmeter, measure the resistance of the speaker column. The resistance should be between 12 and 16 ohms. A reading outside these limits indicates possible failure.

3. Remove back of cabinet.

4. Disconnect one end of the white lead connected between the two 10-inch loudspeakers.

5. Using an ohmmeter, measure resistance of the coil of each loudspeaker individually. Each 10-inch speaker should measure between 12 and 16 ohms. Each 8-inch speaker should measure between 5 and 8 ohms. Readings outside of these limits indicate possible failure.

6. Apply 60 Hz, 1 to ers individually. Any buzzes or rattles indicate possible failure. The speakers should all sound generally alike with a slight difference between the 8-inch and 10-inch loudspeakers.

7. Reconnect lead disconnected in Step 4. Install back of cabinet tightly.

50 to 10,000 Hertz 140' (See Polar Response)

65' 1594 mm 222 mm D (62%'' x 15%"~ 8%

19 mm gray vinyl covering, black grille, anodized aluminum hardware.

ductor rubber-jacketed cable with locking phone plugs attached.*

A3S-S Speaker Stand ASS-T Speaker Tilt Stand A3PC-S Protective Cover POLAR RESPONSE A50XC 50-ft. Extension Cable*

10 volts, to each of the six speak-

x 400 mm

(Y4'')

wood construction,

voice-

180'

O-

......

M16

......"'

(FOOT)

REPL

ITEM

MI5

M16

MI7

*Recommended replacement cable connectors (not available from factory; Switchcraft part

numbers given): Straight Locking Plug: No. 282; Right Angle Locking Plug: No. 228; Locking Extension Jack (for Extension Cable Assembly): No.

KIT

NO.

RKC32

RKC39

I I

REPLACEMENT PARTS

REPLACEMENT KIT CONSISTS OF

QTY. PART NO. DESCRIPTION

1 1 80A207 1

80A208

90A1375 Rear Panel Assembly

90A1605 Column Cabinet

90A1373 Cable and Plug Assembly*

1 1 95A436

4 1 65A1001A 1 Bumper (Plastic Foot)

39A279

I I

8-inch Loudspeaker

10-inch Loudspeaker

Handle Assembly

Nameplate

123.