JBL VT4880A Manuel utilisateur

JBL Incorporated, 8500 Balboa Boulevard, P.O. Box 2200, Northridge, California 91329 U.S.A.

JBLVT4880A

REV K

PACKAGE WIRING DIAGRAM

02-10

Technical Manual

JBLVT4880A

SPECIFICATIONS

ACOUSTIC & ELECTRICAL SPECIFICATIONS:

• Nominal Impedance: 8 ohms Each Transducer

• Input Power Rating: 4000 W (AES), 16,000 W Peak

• Frequency Response: 29 Hz – 120 Hz (–3 dB)

• Frequency Range: 25 Hz – 160 Hz (–10 dB)

• Sensitivity: 95 db, 1 W,@ 1m (35-120 Hz)

• Max Peak Output: 142 dB @ 1m (half-space,grounded)

136 dB @ 1m (half-space,suspend

ed)

• Recommended Signal dbx Drive Rack, BSS FDS-366,

Processing: Crown I-tech and other Digital

Systems Controllers supported

• Recommended Bandpass: 26 Hz– 80 Hz

SYSTEM COMPONENTS:

• Cabinet: Enclosure Assembly C4880

• Grille: 338792-001 (Foam Backed)

• Low Frequency Transducer: (2) 2269H, 460 mm (18 in) dia.,

100 mm (4 in) Dual Coil, Differential

Drive, Direct Cooled

SYSTEM COMPONENTS: (CONT’D)

• Transducers Power 2000 W cont / 8000 W peak (AES)

Sensitivity 1200 W cont / 4800 W peak (100 hrs)

• DC Resistance: 4.8 ohm ±10%

• Input Connector: 360952-001

AURAL SWEEP TEST SPECIFICATIONS:

A. System Aural Sweep Test: 10.0V Input, 10 Hz to 200 Hz

B. L.F. Aural Sweep Test: 20.0V Input, 10 Hz to 300 Hz

PHYSICAL SPECIFICATIONS:

• Enclosure Dimensions: 493mm x 1229mm x 860mm D

(19.42 x 48.38 x 33.85 in.D.)

•Shipping Weight: 185 lbs. (83.9 kg.)

WARRANTY INFORMATION:

• Refer to Warranty Statement packed with each product.

Warranty 59660

Specification Sheet

363581-001

VT4880A-ACC

Installation Procedure

339960-001

VT4880A-ACC:

Soft Cover

361022-001

Dolly Assembly

339510-002

Carton

339636-001

Filler, Lower (2)

339637-001

Filler,Upper (2)

339638-001

Carton

339193-001

Top Filler (2)

339194-001

Tray (2)

339630-001

RED BLKWHT/BLK

WHT/RED

Input

Connector

Assembly

360952-001

Wire Harness

355079-001

Driver, Low Freq (2)

2269H

(354096-001X)

Cone Repl

C8R2269

Pin Outs NL-4

1+ 8 Ohms

2+ 8 Ohms

Pin Outs NL-8

1+ 8 Ohms

2+ 8 Ohms

3+ Thru

4+ Thru

COMPONENT EXPLODEDVIEW

JBLVT4880A

Grille Trim

338838-001 Grille

338792-001

Screw (10)

804-41110-12

10-32 x 3/4

PAN,TORX,BLK,

ZINC,LCS

Bracket (2)

361292-001

Screw (4)

882-41110-10

6 X 5/8

PAN,PH,PB,BLK,

ZINC,LCS

Driver, Low Freq

2269H

(354096-001X)

Cone Repl

C8R2269

Screw (16)

804-72110-24

10-32 X 1 1/2

SKT,TORX,BLK,

ZINC,LCS

Gasket, Rear (8)

60578

Gasket, (8) 18” Self Adh.

71848-03

Pin, Dolly Lock (2)

351798-002

Nut (2)

836-36110-00

3/8 - 24 Nylon,

BLK,ZINC,LCS,RIGHT

Retainer, Dolly Pin (2)

351696-001

Rigging Frame (2)

338978-001

Pin,Quick Release

361344-001

Screw (8)

804-41110-06

10-32 X 3/8

PAN,PH,BLK,

ZINC,LCS

End Cap, Front (2)

338941-001

Screw (8)

806-42010-32

1/4-20 X 2

PAN,TORX,BLK,

ZINC,LCS

Washer, Flat (8)

337183-001

25 X .5 ZINC

Hinge Lock Bar (2)

338950-001

Screw (6)

884-11000-12

FLT,PH,WD,

CLR,ZINC,

LCS

Lock Bar Cushion(2)

338951-001

Feet (8)

338948-001

Screw (8)

806-42010-32

1/4-20 X 2

PAN,TORX,

BLK, ZINC,LCS

End Cap, Rear (2)

338942-001

Screw (4)

806-42010-32

1/4-20 X 2

PAN,TORX,BLK,

ZINC,LCS

Washer (4)

844-01110-07

1/4 SAE,REG,BLK,

ZINC,CS

Washer, Flat (4)

337183-001

.25 X .5 ZINC

Wave

Washer (4)

339236-001

Washer Flat (4)

339235-001

Hinge Cushion (2)

339201-001

Input Connector

Assembly

360952-001

Screw (8)

804-42110-12

10-32 X 3/4

PAN,TORX,BLK,

ZINC,LCS

Handle (2)

364978-001

Gasket, (2)

360937-001

Screw (8)

804-42101-16

10-32 x 3/4

PAN,TORX,

BLK,ZINC,LCS

Washer, Amp Mount (8)

351905-002 (7/8”)

(Cabinet Back)

Screw (8)

806-42010-16

1/4-20 X 1

PAN,TORX,BLK,ZINC

Washer (8)

844-00110-06

1/4 X .06

FLTPL, REG,BLK

ZINC,CS

Handle (6)

923-00022-07

Screw (24)

804-42110-12

10-32 X 3/4

PAN,TORX,BLK,

ZINC,LCS

Screw (36)

884-42110-12

10 X 3/4

PAN,TORX,PB,BLK,

ZINC,LCS

Gasket, Handle (8)

382-00337-00

Knob, Slider

350839-002

Rear Hinge (2)

364597-001

R.A.P.

354965-001

Screw (12)

884-42110-12

10 X 3/4

PAN,TORZ,PB

BLK ZINC,LCS

Knob, Slider

350839-001

Front Hinge (2)

364596-001

R.A.P.

354965-001

JBL VT4880A

JBLVT4880A-ACC

DOLLY ASSEMBLY

Dolly Platform

351894-003

339510-002

Caster Wheels (4)

339514-001

Caster Plate (4)

339513-001

Nut (16)

352018-001

Nylock Special

Spring Assembly (2)

351899-001

Cover (2)

351893-001

Dolly Housing

Screws (12)

803-11000-08

8-32 x 1/2

FLT, PH, CLR ZINC, UNC

Insert (10)

8161207-001

8-32 x 4mm

HXS, KNIFE32608C10ZC

Screws (16)

807-13000-20

5/16-18 x 1 1/4

FLT, HEX,CLR

ZINC, LC

T NUT (2)

21749

8-32 x 1/4

JBLVT4889-AF

ARRAY FRAME

Array Frame

337036-001

VT4889 AF

DETAIL A

Nut, (16)

836-36113-00

3/8-16

Nylon Lock, BLK ZINC,

MCAS,RT

Washer, (16)

846-00410-08

3/8 X .08

fFLTPL,EX DT BLK ZINC,CS

Label, Array Frame

955-00154-00

Pin,Ball Locking Assesmbly (4)

361345-001

4”

Screw (4)

804-3111-08

10-32 x 1/2,

TRUSS, PH, BLK ZINC,

LCS

Bolt (16)

856-00013-44

3/8-16 x 2 3/4

HEX,CAP,BLK

ZINC,MCA

Specification Tag

VT4889 AF

337080-001

Hinge Block, Front (2)

352963-001

Hinge Block, Rear (2)

352964-001

Short

Long

The VT4889-AF array suspension frame

is crafted of 6061 Grade heat-treated

aluminum. It includes 11 (eleven)

attachment holes for fitting 6.5-ton

shackles.Each of these holes is fitted

with a bronze bushing for longer life.

These holes are set on approximately

102mm (4”) centers. Each hole has an

I.D. (Inner Diameter) of 25.4mm (1”).

The frame includes four receiver blocks,

designed to attach Hinge Bars from the

VT4889 enclosures.These blocks are

made of 7075 Grade aluminum.They

are coupled with Grade 8 bolts, and the

attached steel quick release pins are

secured with stainless steel restraining

lanyards.

The VT4889-AF weighs 45 kilograms

(100 lbs.) It measures approximately

1257mm x 1129mm x 102mm

(49.5” x 44.45” x 4”).

DETAIL A

VT4889-AF (Array Frame)

JBLVT4889-AF

VT4889 Manual

336890-001

JBLVT4889-SF

ARRAY FRAME (Short Frame)

Short Frame

888-00106-00

VT4889-SF

DETAIL A

NUT, (16)

836-36113-00

3/8-16

Nylon Lock, BLK ZINC,

MCAS,RT

Washer, Flat (32)

846-00410-08

3/8 X .08

FLTPL,EX DT,BLK ZINC,CS

Label, Array Frame

955-00154-00

Pin, Ball Locking Assembly (4)

361345-001

Screw (4)

804-31110-08

10-32 x 1/2

TRUSS, PH, BLK,

ZINC, LCS

Bolt (16)

856-00013-40

3/8-16 x 2-1/2

HEX, CLR, ZINC, MCA

Specification Tag

VT4889-SF

337080-001

Hinge Block, Front (2)

352963-001

Hinge Block, Rear (2)

352964-001

Short

DETAIL A

Like the larger VT4889-AF, the Short

Frame is crafted of 6061 Grade heat-

treated aluminum. It includes 6 (six)

attachment holes. Each hole is fitted

with a bronze bushing for longer life.

These holes are set on approximately

102mm (4”) centers. Each hole has an

I.D. (Inner Diameter of 25.4mm (1”).The

frame includes four receiver blocks,

designed to attach Hinge Bars from the

VT4889 enclosures.These blocks are

made of 7075 Grade aluminum.They

are coupled with Grade 8 bolts, and the

attached steel quick release pins are

secured with stainless steel restraining

lanyards.

The VT4889-SF weighs only 23.6 kilo-

grams (52 lbs.).It measures approxi-

mately 1257mm x 660mm x 102mm

(49.5” x 26” x 4”).

VT4889-SF (Short Frame)

JBLVT4889-SF

VT4889 Manual

336890-001

Long

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