VT4887
9
07-09 JBL Incorporated, 8500 Balboa Boulevard, P.O.Box 2200, Northridge, California 91329 U.S.A. JBL VT4887 REV AAA PACKAGE Technical Manual JBL VT4887 SPECIFICATIONS ACOUSTIC & ELECTRICAL SPECIFICATIONS: • Frequency Response: 80 Hz- 20 kHz (±3 dB) • Horiz Coverage Angle: 100°, 500 Hz - 16 kHz (-6dB) • Vert Coverage Angle: Varies with size and configuration(-6dB) • Max Peak Output: 131 dB to 141 dB @ 1M (Frequency/Bandpass Dependent) • Recommended Signal Digital System Processing: (Factory Settings) dbx 480, BSS 366, XTA 226 • Crossover Frequency: 415 Hz LF to MF/HF; 2.1 kHz MF to HF (Passive Crossover Network) SYSTEMS COMPONENTS: • Cabinet: Enclosure Panels:Top/Bottom (350764-001), Side, 2x (350763-001), Rear (350762-001) • Grille: Left (350768-001), Right (350768-002) • Low Frequency (2) 2168J, 208 mm (8”) dia., 76 mm (3”) Transducer: Dual Coil Differential Drive Nominal Impedance: 16 ohms (Per Driver) Input Power Rating: 1000W (4000W peak) 2 hrs. 700W (2800W peak) 100 hrs. Bandpass Sensitivity: 97 dB,1W @ 1m (3.3 ft.) DC Resistance: 5.2 Ohms • Mid Frequency (4) 2104H, 101 mm (4”) dia. Transducer: 25.4 mm (1”) Coil Nominal Impedance: 8 Ohms (Per Driver) Input Power Rating: 225W (900W peak) 100 hrs. Bandpass Sensitivity: 101 dB,1W @ 1m (3.3 ft.) DC Resistance: 4.2 Ohms SYSTEMS COMPONENTS (Cont): • High Frequency (2) 2407H, Neodymium Ultra Light Transducer: Ring Radiator Nominal Impedance: 8 Ohms (Per Driver) Input Power Rating: 225W (900W peak) 100 hrs. Bandpass Sensitivity: 101 dB,1W @ 1m (3.3 ft.) DC Resistance: 4.3 Ohms AURAL SWEEP TEST SPECIFICATIONS: A. System Aural Sweep Test (thru processormeasured at the amp output): 6V, 80 Hz to 20 kHz B. LF Woofer Sweep Test (per ets): 3V, 80 Hz to 400 Hz C. MF Woofer Sweep Test (per ets): 2V, 500 Hz to 5 kHz D. HF Driver Sweep Test (per ets): 1.2V, 800 Hz to 20 kHz PHYSICAL SPECIFICATIONS: • Enclosure Dimensions: 279 mm x 787 mm x 417 mm D (11 x 31x 16.4 in. D) • Shipping Weight: 85 lbs. (39 kg) VT4887 VT4887-ACC 25 lbs. (11.4kg) WARRANTY INFORMATION: • Refer to Warranty Statement packed with each product. Warranty 59660 Specification Sheet 350619-001 Filler (2) 351864-001 Microfoam (8) 49790P Carton 351863-001 Fiberglass (18) 22389P Chip FBRBRD 300982-001 JBL VT4887-AF Carton 350487-001 Filler (2) 350486-001 Owner’s Manual 350485-001 JBL VT4887-SF Carton 350712-001 Filler (2) 350713-001 Owner’s Manual 350485-001 Dolly Assembly (VT4887) 350401-003 Carton 350528-001 Filler, Top (2) 351400-001 Filler, Bottom (2) 350529-001 Soft Cover 350527-001
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Transcript of VT4887
07-09
JBL Incorporated, 8500 Balboa Boulevard, P.O. Box 2200, Northridge, California 91329 U.S.A.
JBL
VT48
87R
EV
AA
A
PACKAGE
Technical Manual
JBL VT4887SPECIFICATIONSACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Frequency Response: 80 Hz- 20 kHz (±3 dB)• Horiz Coverage Angle: 100°, 500 Hz - 16 kHz (-6dB)• Vert Coverage Angle: Varies with size and configuration(-6dB)• Max Peak Output: 131 dB to 141 dB @ 1M
(Frequency/Bandpass Dependent)• Recommended Signal Digital System Processing: (Factory
Settings) dbx 480, BSS 366, XTA 226 • Crossover Frequency: 415 Hz LF to MF/HF; 2.1 kHz MF to
HF (Passive Crossover Network)
SYSTEMS COMPONENTS:
• Cabinet: Enclosure Panels:Top/Bottom (350764-001),Side, 2x (350763-001), Rear (350762-001)
• Grille: Left (350768-001), Right (350768-002)• Low Frequency (2) 2168J, 208 mm (8”) dia., 76 mm (3”)
Transducer: Dual Coil Differential Drive Nominal Impedance: 16 ohms (Per Driver)Input Power Rating: 1000W (4000W peak) 2 hrs.
700W (2800W peak) 100 hrs.Bandpass Sensitivity: 97 dB,1W @ 1m (3.3 ft.)DC Resistance: 5.2 Ohms
• Mid Frequency (4) 2104H, 101 mm (4”) dia.Transducer: 25.4 mm (1”) Coil Nominal Impedance: 8 Ohms (Per Driver) Input Power Rating: 225W (900W peak) 100 hrs.Bandpass Sensitivity: 101 dB,1W @ 1m (3.3 ft.)DC Resistance: 4.2 Ohms
SYSTEMS COMPONENTS (Cont):• High Frequency (2) 2407H, Neodymium Ultra Light
Transducer: Ring Radiator Nominal Impedance: 8 Ohms (Per Driver)Input Power Rating: 225W (900W peak) 100 hrs.Bandpass Sensitivity: 101 dB,1W @ 1m (3.3 ft.)DC Resistance: 4.3 Ohms
AURAL SWEEP TEST SPECIFICATIONS:
A. System Aural Sweep Test (thru processormeasured at the amp output):6V, 80 Hz to 20 kHz
B. LF Woofer Sweep Test (per ets): 3V, 80 Hz to 400 HzC. MF Woofer Sweep Test (per ets): 2V, 500 Hz to 5 kHzD. HF Driver Sweep Test (per ets): 1.2V, 800 Hz to 20 kHz
PHYSICAL SPECIFICATIONS:
• Enclosure Dimensions: 279 mm x 787 mm x 417 mm D(11 x 31x 16.4 in. D)
• Shipping Weight: 85 lbs. (39 kg)VT4887VT4887-ACC 25 lbs. (11.4kg)
WARRANTY INFORMATION:
• Refer to Warranty Statement packed with each product.
Warranty 59660
Specification Sheet350619-001
Filler (2)351864-001
Microfoam (8)49790P
Carton351863-001
Fiberglass (18)22389P
Chip FBRBRD300982-001
JBL VT4887-AF
Carton 350487-001
Filler (2)350486-001
Owner’s Manual 350485-001
JBL VT4887-SF
Carton350712-001
Filler (2)350713-001
Owner’s Manual350485-001
Dolly Assembly (VT4887)350401-003
Carton350528-001
Filler, Top (2)351400-001
Filler, Bottom (2) 350529-001
Soft Cover 350527-001
JBL
VT48
87JBL VT4887
WIRING DIAGRAM
No. 1 No. 2
No. 1
No. 2
No. 3
No. 4
No. 1 No. 2
Mid/HFCrossoverNetwork350984-001
ImputConnectionAssembly350930-005(assemblyincludes thenetwork)Input PCB350985-001
Low FrequencyDriver (2)2168J (338407-003X)C16R2168
RED
BLACKGREEN
GREEN/BLACK
Wiring HarnessAssembly350986-001
High Frequency Driver(2)2407H (339150-001X)Dia ReplD8R2407
Mid FrequencyDriver (4)2104H(350049-001X use350049-003X)
WHITE
WHITEWHITE 12”
WHITE 12”
WHITE
WHITE
YELLOW/BLACK
YELLOW 12”
YELLOW
JBL
VT48
87JBL VT4887
SCHEMATIC DIAGRAMS
4–4+3–3+2–2+1–1+
4–4+3–3+2–2+1–1+
10987
654
321
10
9
8
7
6
5
4
3
2
1
REDBLACK
GRNGRN/BLK
WHTWHT/BLK
Input Connection Assembly P/N 350930-005 Wire Harness Assembly P/N 350986-001
P1P2
P3P4
P5P6
3X
LF (R)
LF (L)
To VT4887 crossover assy.P/N S-3772
STRIP/TIMSTRIP/TIM
STRIP/TIMSTRIP/TIM
250 FEMALE250 FEMALE
Mid/HF Crossover Network P/N 350984-001
16” YELLOW205 FEMALE
250 FEMALE
205 FEMALE
250 FEMALE
250 FEMALE
250 MALE
250 FEMALE
250 MALE
250 FEMALE
250 MALE
250 FEMALE
250 MALE
12” YELLOW
16” YEL/BLK
24” WHITE
12” WHITE
24” WHITE/BLK
24” WHITE
12” WHITE
24” WHITE/BLK
R16.8R25W
R26.8R25W
C1 6.8µF
C2 2µF
C520µF
C610µF
C3 1µF C4 12µF
L2 0.4mH
L1 0.5mH
L21mH250 PCB MALE
250 PCB MALE
2X NL8
JBL
VT48
87JBL VT4887
COMPONENT EXPLODED VIEW
Baffle Mid (2)350760-001
Baffle (2)350761-001
Rear Panel353802-001
T-Nut #10-32 x 5/16 (8)350840-001
Panel Divider350765-001
Side Panel (2)350763-003
T-Nut (16)10-3261861
Rigging Bracket (8)351922-001Screw(16)802-11010-086-32 x 1 1/2FLT,PH,BLK,ZINC
T-Nut (12)6186061861
Top/Bottom Panel350764-001
Screws (8)1/4 20 x 1805-42010-16
1/4 - 20 x 3/4T-Nut353861-001
WasherSilkscreenVertec351263-002
JBL
VT48
87JBL VT4887
COMPONENT EXPLODED VIEW
HF Flare351485-001
Screws (8)881-11110-084 x 1/2 FLT, PH,PB, BLK
Low Frequency (2) 2168J (338407-003X)Cone ReplC16R2168
Screws (8)804-11110-2010-32 x 1 1/4FLT,PH,BLK,ZINC,LCS
Grille Left:351533-002 (1)
Grille Right:351533-001 (1)
Grille Trim:351525-001 (2)
Screws (16)803-32011-048-32 x 1/4TRUSS,TORX,BLK,ZINC,LCS,
Mid Range(4) 2104H
H/F Grille350834-001
Screws (6) 804-11110-1610-32 x 1FLHD, PH, BLK
Gasket Horn (2)350771-001
Top/Bottom Horn Gasket (2)351415-001
Center HornGasket350878-001
Front Hinge (2)364941-001
Dolly Lock, Pin (2) 3.19”351796-002
Nut, (2)836-36110-003/8-24 Nylon
Dolly Retainer,Pin (2)351696-001
Handle (2)923-00022-07
Screws (12)884-42110-1210 x 3/4PAN,TORX,PB,BLK,ZINC,LCS
Screws (16)804-42110-1210-32 x 3/4PAN,TORX,BLK,ZINC,LCS
Rear Rigging Tube (2)350561-003
Patch (8)338885-0011/4 x 1FHHD socketGrade 8
Rear Hinge (2)364942-001
Slider Knob (2)350839-00110-32 x 5/8
Front Rigging Tube (2)350560-003
Pin, Quick Release (8)361343-001
RBI Assy (2) 350767-001
Screws (12)803-42010-248-32 x 1 1/2PAN,TORX,BLK,ZINC,LCS
Horn Assembly (2) 339206-001Horn Bracket (2)350770-001
Input ConnectionAssembly 350930-005(includes thecrossover network)
High Frequency (2) 2407H (339150-001X)Diaph ReplD8R2407
Screws (8)705-90002-141/4-20 x 7/8 Socket SetCup Point
Screws (8) 854-00003-081/4-20 x 1/2HEX,CLR,ZINC,MCAS
External Tooth LockWasher (8) 844-10100-06
Washer (8)844-01110-071/4,SAE,REG,BLKZINC,LCS
Standoff (16)885-00082-018-32, 3/8 HEX x 1/4,SS
Grille Insert Nut (16)350618-001
HDL Gasket (2)382-00337-00
Gasket (2)360-60002-00
Rigging TubePad (8)350862-001
Screw (4)882-51110-126 x 3/4 OV,PH,PTCL,BLK,ZINC,LCS
(350049-001X use
350049-003X)
Enclosure AssyC4887A(available to VerTecDealers and ServiceCenters)
Washer, Amp Mount (8)351905-0027/8”(Cabinet Back)
Screw (8)806-42010-16 1/4-20 x 1 PAN,TORX,BLK ZINC, LCS
R.A.P365004-001
Rigging Bracket (8)351922-001Screw(16)802-11010-086-32 x 1 1/2FLT,PH,BLK,ZINC
T-Nut (16)10-3261861
JBL
VT48
87-A
CC
RE
V C
JBL VT4887-ACCREV C
DOLLY ASSEMBLY
Dolly Assembly(1)350401-003
Dolly Platform(1)w/c’ sink holes351369-001
Caster Wheels (4)924-00005-00
Caster Plate (4)909-00052-01
Flat Washer (16)845-00100-005/16
Nylon Nut Lock (16)352018-0015/16-18
HSG. Dolly Locking Pin (2)885-00091-00
Dolly Lock Cover337089-001
Cap # 1/8 (2)351563-001LC-9125
Dolly LockHousing Assembly (2)350875-001
Screws (16)807-13000-20# 5/16-18 x 1-1/4HEX,CLR,ZINCLC
Screws (8)804-11100-1610-32 x 1FLT,CLR,ZINC,LCS
Fender Washer (8)843-00100-00#10
Nut833-36100-0010-32Nylon, CLR,ZINC,LCS
Screws (10)802-11000-086-32 x 1/2FLT,PH,CLR,ZINC,LCS
JBL
VT48
87-A
CC
RE
V C
JBL VT4887-ACCREV C
10-02
Dolly Platform364183-001
Caster Wheels (4)924-00005-00
Caster Plate (4)909-00052-01
Nut (16)NyLock Special 352018-001
Spring Assembly (2) 351900-001
Cover (2)Dolly Housing351898-001
Screws (12) 803-11000-208-32 x 3/4LFT,PH,CLR,ZINC, LCS
Insert (10)8161207-0018-32 x 4mmHXS, KNIFE32608C10ZC
Screws (16)807-13000-205/16-18 x 1 1/4 FLT, HEX,CLRZINC, LC
T NUT (2)CP, 8-32 x 1/4 21749
DOLLY ASSEMBLY
JBL
VT48
87-S
FJBL VT4887-SF
10-02
ARRAY FRAME ASSEMBLY
Front Hinge Block (4)339668-004
Frame Array350629-001
Front Hinge Block (4)339668-004
Washer (32)846-00410-083/8 x .08FLTPL,EX DT,BLK ZINC,CS
Nut (16)836-36113-003/8-16Nylon Lock, BLKZINC, MCAS, RTScrew (16)
856-00013-403/8-16 x 2-1/2HEX,CAP,BLK ZINC,MCA
Bolt (16)856-00013-403/8-16 x 2 1/2 HEX,CAP, BLK ZINC, MCA
Pin, Ball Locking Assembly (4)361345-0014”
JBL Label955-00154-00
Screw (4)804-31110-0810-32 1/2TRUSS, PH, BLKZINC, LCS
JBL
VT48
87-A
FJBL VT4887-AF
10-02
ARRAY FRAME ASSEMBLY
Front Hinge Block (4)339668-004
Pin, Ball Locking Assembly (4)361345-0014”
Screws (4)804-31110-0810-32 x 1/2TRUSS,PH,BLKZINC,LCS
Frame Array350361-002
JBL Label955-00154-00
Washer (32)846-00410-083/8 x .08FLTPL, EX DT,BLK, ZINC, CS
Nut (16)836-36113-003/8-16Nylon Lock,BLK ZINCMCAS, RT
Screws (16)856-00013-483/8-16 x 3 HEX, CAP, BLK ZINC, MCA
