JBL Stereo Amplifier VT4881ADP AN CN User Manual

JBL Incorporated, 8500 Balboa Boulevard, P.O. Box 2200, Northridge, California 91329 U.S.A.  
Technical Manual  
JBL VT4881ADP-AN/CN  
SPECIFICATIONS  
ACOUSTIC & ELECTRICAL SPECIFICATIONS:  
SYSTEM COMPONENTS:  
• Cabinet:  
Enclosure Assembly C4881  
354690-001  
(1) 2269G,457 mm (18in) dia,100mm  
(4 in) Dual Coil,Differential Drive(R  
Direct Cooled(TM)  
• Nominal Impedance:  
• Power Handling:  
8 ohms  
• Grille:  
2000W Continuous/8000W Peak (AES/2  
hrs)  
• Low Frequency  
1200W Continuous/4800W Peak (100 hrs)  
• DP1 Internal Amplification Output:  
• DC Resistance:  
2.7 ohms  
(at load)  
3600W Peak, 1800 W Continuous  
AURAL SWEEP TEST SPECIFICATIONS:  
• DP1 Output Topology:  
• Frequency Response:  
• Frequency Range:  
• Max Peak Output:  
• Signal Processing:  
1-Channel Class-I  
34 Hz - 125 Hz (-3 dB)  
25 Hz - 160 Hz (-10 dB)  
131 dB SPL. 1m  
A. System Aural Sweep Test: 7.0mV Input, 20 Hz to 400 Hz  
B. LF. Aural Sweep Test: 10.0V Input, 10 Hz to 300 Hz  
PHYSICAL SPECIFICATIONS:  
dbx type IV Conversion System, Precision  
bandpass filters, limiting, pre- equalization • Enclosure Dimensions:  
787 mm x 569 mm x 800 mm  
(31 in. x 22.4 in. x 31.5 in.)  
filters and automatic self-test functions.  
• AC Power Operating Range:  
Auto Select 90-132VAC/216-264VAC,  
(W x H x D)  
• Net Weight:  
137 lbs. (62.2 kg)  
50/60Hz  
WARRANTY INFORMATION:  
• AC Line Voltage:  
50/60n Hz, Auto-Detect, 100V/220V,  
• Refer to Warranty Statement packed with each product.  
• AC Input Connector:  
• AC Power Loop-thru:  
Neutrik PowerCon  
Neutrik PowerCon  
• AC Current Requirement: 5A per system at 120A, 3.2A per system  
at 240V  
PACKAGE  
WIRING  
Warranty 59660  
Driver, Low Freq.  
2269H  
Specification Sheet  
362884-001  
(354096-001X)  
Cone Repl  
C8R2269  
Filler (2)  
362308-001  
Microfoam (8)  
49790P  
GRN  
GRN/BLK  
Carton  
362307-001  
Input Cup  
Assembly  
352817-001  
Protective Jackets (2)  
360849-001  
JBL Drive Pack  
Operators Guide  
362870-001  
Power Cord Assembly  
355040-002  
Edison / Shucko  
SCHEMATIC: 362309-001  
Wiring Harness  
Back Filler (2)  
363135-001  
Front Filler  
363137-001  
CD,Network  
Drive Pack  
361908-003  
JBL VT4881ADP-ACC  
Dolly Assembly  
350434-003  
Carton  
363005-001  
JBL VT4887-AF  
Carton  
350712-001  
JBL VT4887-SF  
Carton  
350487-001  
Filler,Bottom (2)  
363006-001  
Filler,Top (2)  
363007-001  
Filler (2)  
Filler (2)  
350713-001  
350486-001  
Exterior Cover  
363019-001  
Owner’s Manual  
350485-001  
Owner’s Manual  
350485-001  
Filler, Pad (2)  
363008-001  
05-08  
 
JBL VT4881ADP-AN/CN  
COMPONENT EXPLODED VIEW  
Port Cup (4)  
352961-001  
Slider Knob (2)  
350839-001  
Input Cup Assembly  
352817-001  
Slider Knob (2)  
350839-001  
Connect Assembly  
352270-001  
Amplifer Assembly  
362327-004X (DP)  
362327-005X (AN)  
362327-006X (CN)  
Rigging Bracket (4)  
351922-001  
Screw (120  
Front Hinge (2)  
364941-001  
Wire Harness  
362309-001  
Rear Hinge (2)  
364943-001  
Input Cup  
883-41110-08  
Screw (8)  
352271-001  
8 x 1/2  
802-11010-10  
PAN,PH,PB,BLK,  
R.A.P.  
354304-001  
Screw (8)  
R.A.P.  
354304-001  
6-32 x 5/8  
Wire Harness  
352087-001  
(Ribbon Cable)  
ZINC,LCS  
804-42110-12  
10-32 x 3/4  
PAN,TORX,BLK,  
ZINC,LCS  
FLT,PH,BLK ZINC,  
Screw (8)  
LCS  
875-33011-20  
1/4-20 x 11/2  
SCKT, HEX,BLK,  
ZINC,MCS  
Gasket, Port Flare (2)  
362378-002  
Gasket  
352818-001  
Driver, Low Freq  
Port Tube (2)  
354599-004  
2269G  
(354096-001X)  
Cone Repl  
C4R2269  
Handle (6)  
923-00022-07  
Gasket, Rear (8)  
60578  
Cork Adh Back  
Gasket, Handle (6)  
382-00337-00  
Quick Release Pin (8)  
361343-001  
Screw (8)  
804-72110-24  
10-32 x 1 1/2  
SKT,TOR,BLK,  
ZINC,LCS  
Screw (24)  
804-42110-12  
PAN, TORX, BLK, ZINC, LCS  
Grille Trim  
Dust Dome  
350175-001  
Screw (36)  
71133-04  
884-42100-12  
10 x 3/4  
PAN,TORX,PB,BLK,ZINC,LCS  
Gasket (8)  
71848-03  
18” Self Adhesive  
Washer (8)  
354305-001  
Rigging Bracket (8)  
351922-001  
Rigging Pad (8)  
351001-001  
1 1/4”  
Screw (16)  
881-411010-  
4 x 5/8  
PAN,PH,PB,CLR  
ZINC,LCS  
Rigging Bracket (4)  
Rear Rigging Tube (2)  
350575-003  
351922-001  
Foot (4)  
353445-001  
Screw (8)  
802-11010-10  
6-32 x 5/8  
FLT,PH,BLK ZINC,  
LCS  
T-Nut (8)  
350840-001  
10-32 x 5/16  
Screw (4)  
Screw (4)  
804-42110-12  
10-32 x 3/4  
PAN,TORX,  
BLK,ZINC,  
LCS  
339286-001  
1/4-20 x 1/4  
FLAT HEAD SCKT  
Dolly Lock Pin (2)  
351798-002  
3.73”  
Grille  
364690-001  
Nut (2)  
836-36110-00  
3/8-24  
Nylon,BLK,ZINC,  
LCS,Right  
Front Rigging Tube (2)  
350576-002  
Grille Standoff (7)  
Screw (9)  
350389-001  
339283-001  
10-32 x 3/8  
TORX,PAN,BLK,  
NYLON  
Screw (4)  
339286-001  
1/4 - 20x1 1/4  
FLAT HEAD SCKT  
Insert Nut (7)  
350015-001  
Dolly Retainer Pin (2)  
351696-001  
 
DP1 AMPLIFIER ASSEMBLY REFERENCE  
AMPLIFIER ASSEMBLY  
362327-001  
Input Modules  
Amplifier Assemblies  
DP1  
Note: Amplifier assembly includes the input module.  
Note: If ordering an input module you must order 1 of the tuning files  
below depending on the system model number.  
Part No.  
Description  
DP-dbx  
DP-AN  
DP-CN  
361541-001X 361092-001X 361093-001X  
362327-001  
Amplifier Assembly, Base Model, VP/VT Series  
Amplifier Assembly, VPSB7118DPAN  
Amplifier Assembly, VPSB7118DPCN  
Amplifier Assembly, VT4881ADP  
Amplifier Assembly, VT4881ADP-AN  
Amplifier Assembly, VT4881ADP-CN  
Amplifier Assembly, VPSB7118DP  
362327-002X  
362327-003X  
362327-004X  
362327-005X  
362327-006X  
362327-007X  
Model Numbers  
Tuning File Part Numbers  
VT4881ADP  
VPSB7118DP  
363146-001  
364097-001 362351-001  
363457-001  
363458-001  
362352-001  
Screen. DP2 (2)  
354382-001  
Gasket, Cabinet (2)  
354339-001  
End Cap  
353901-001  
Screw (4)  
354379-001  
1/4-20 x 1 1/2,5/16  
SHLDR,BLKLUBE  
Screw (4)  
354379-001  
1/4-20 x 1 3/4,5/16  
SHLDR,BLKLUBE  
Badge, Center  
354382-001  
Foam Pad  
382-00325-00  
Knob, Volume  
355039-001  
Vertical  
Gasket, Riser (2)  
353830-001  
(dbx only)  
*Note: end-caps are not required for or  
included with Venue Performance sales  
models.  
Riser, DP (2)  
353829-001  
Screw (8)  
873-33014-10  
8-32 x 5/8  
SCKT,CAP,HEX  
BLK,ZINC  
 
JBL VT4881ADP-ACC  
DOLLY ASSEMBLY  
350434-003  
Dolly Platform  
351895-002  
(w/c’sink holes)  
Screw (16)  
Screw (16)  
807-13000-20  
5/16-18 x 1-1/4  
FLT HEX, CLR,  
ZINC,LC  
807-13000-20  
5/16-18 x 1-1/4  
FLT HEX, CLR,  
ZINC,LC  
T-Nut (2)  
21749  
8-32 x 1/4  
CP  
Insert (10)  
8161207-001  
8-32 x 4MM  
HXS,KNIFE32608C10ZC  
Caster Plate (4)  
339514-001  
Caster Wheels (4)  
339513-001  
Nut (16)  
352018-001  
Nylock Special  
Screw (12)  
803-11000-08  
8-32 x 1/2  
FLT,PH,CLR,  
ZINC,UNC  
Spring Assembly (2)  
351899-001  
Cover,Dolly Housing (2)  
351893-001  
 
JBL VT4887-SF  
ARRAY FRAME ASSEMBLY  
Screw (4)  
Pin, Ball Locking Assembly (4)  
804-31110-08  
10-32 x 1/2  
TRUSS,PH,BL,  
ZINC, LCS  
361345-001  
4 in.  
Frame Array  
350629-001  
JBL Label  
955-00154-00  
Front Hinge Block (4)  
339668-004  
Bolt (16)  
856-0013-40  
3/8-16 x 2 1/2  
HEX,CAP, BLK  
ZINC, MCA  
Nut (16)  
836-36113-00  
3/8-16  
Front Hinge Block (4)  
339668-004  
Nylon Lock, BLK,  
ZINC,MCAS,RT  
Bolt (16)  
856-0013-40  
3/8-16 x 2 1/2  
HEX,CAP,BLK  
ZINC,MCA  
Washer (32)  
846-00410-08  
3/8 x .08  
FLTPL,EX DT  
BLK ZINC,CS  
 
JBL VT4887-AF  
ARRAY FRAME ASSEMBLY  
Pin, Ball Locking Assembly (4)  
361345-001 (4 in.)  
Washer (32)  
846-00410-08  
3/8 X .08  
FLTPL,EX DT,BLK  
ZINC, CS  
Screw (4)  
804-31110-08  
10-32 x 1/2  
TRUSS,PH, BLK  
ZINC, LCS  
Nut (16)  
836-36113-00  
3/8-16  
Nylon Lock,BLK  
ZINC MCAS,RT  
JBL Label  
955-00154-00  
Bolt (16)  
856-00013-48  
3/8 -16 x 2 1/2  
HEX,CAP BLK ZINC  
MCA  
Frame Array  
350361-002  
Front Hinge Block (4)  
339668-004  
 

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