JBL VT4888 - User Manual

03-12
JBL Incorporated, 8500 Balboa Boulevard, P.O. Box 2200, Northridge, California 91329 U.S.A.
JBL VT4888
REV AAB
PACKAGE
Technical Manual
JBL VT4888
SPECIFICATIONS
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Frequency Response: 60 Hz- 16 kHz (±3 dB)
• Max Peak Output: 136 dB to 146 dB @ 1M
(Frequency/Bandpass Dependent)
• Recommended Signal Digital System Processing: dbx 480,
BSS 366, XTA 226
• Horiz Coverage Angle: 90°, 250 Hz - 16 kHz (-6dB)
• Vert Coverage Angle: Varies with size and configuration(-6dB)
• Crossover Frequency: 315 Hz LF/Mid
1.2 kHz MF/HF
SYSTEMS COMPONENTS:
• Cabinet: Enclosure Assembly C4888
• Grille: Left (350780-002), Right (350780-001)
• Low Frequency (2) 2262H, 304 mm (12”) dia., 76 mm (3”)
Transducer: Dual Coil Differential Drive
• Nominal Impedance: 8 ohms (Per Driver)
• Input Power Rating: 2000W (8000W peak) 2 hrs.
1400W (5600W peak) 100 hrs.
• Bandpass Sensitivity: 98 dB,1W @ 1m (3.3 ft.)
DC Resistance: 5.1 Ohms
• Mid Frequency (4) 2106HPL, 50 mm (2”) dia.Voice Coil
Transducer:
• Nominal Impedance: 8 Ohms (Per Driver)
• Input Power Rating: 600W (2400W peak) 100 hrs.
400W (1600W peak) 100 hrs.
• Bandpass Sensitivity: 102 dB,1W @ 1m (3.3 ft.)
• DC Resistance: 4.3 Ohms
SYSTEMS COMPONENTS (Cont):
• High Frequency (2) 2431H, 76 mm (3”) dia. Aluminium
Transducer: Diaphragm, 38mm (1.”) Throat Dia.
• Nominal Impedance: 8 ohms (Per Driver)
• Input Power Rating: 150W (600W peak) 100 hrs.
• Bandpass Sensitivity: 114 dB,1W @ 1m (3.3 ft.)
• DC Resistance: 4.0 Ohms
AURAL SWEEP TEST SPECIFICATIONS:
A. System Aural Sweep Test (thru processor measured as amp output):
6V, 40 Hz to 20 kHz
B. LF Woofer Aural Sweep Test: 6V, 40 Hz to 1 kHz
C. MF Woofer Aural Sweep Test: 3V, 400 Hz to 4 kHz
D. HF Driver Aural Sweep Test: 1.5V, 800 Hz to 20 kHz
PHYSICAL SPECIFICATIONS:
• Enclosure Dimensions: 355.6 mm x 990.6 mm x 508 mm D
(14 x 39 x 20 in. D)
• Shipping Weight:
VT4888 130 lbs. (59 kg)
VT4888-ACC 30 lbs. (13.6 kg)
WARRANTY INFORMATION:
• Refer to Warranty Statement packed with each product.
Warranty 59660
Specification Sheet
350620-001
Filler (1)
35862-001
Microfoam (4)
49790P
Carton
351861-001
Fiberglass (13)
22389P
Chip FBRBRD
(38)
300982-001
JBL
VT4888-AF
Carton
350484-001
Filler (2)
350486-001
Owner’s Manual
350485-001
JBL
VT4888-SF
Carton
350706-001
Filler (2)
350713-001
Owner’s Manual
350485-001
Dolly Assembly
350519-002
Carton
350521-001
Filler,Bottom (2)
350522-001
Filler, Top (2)
351401-001
Soft Cover
350520-001
910-00035-01
(1)
Ferro fluid vial w/
blotter paper and
instruction sheet
910-00035-02
(12)
Ferro fluid vials w/
blotter paper and
instruction sheet

Summary

JBL VT4888 Specifications

Acoustic and Electrical Specifications

Key acoustic and electrical performance parameters including frequency response, max output, coverage angles, and crossover frequency.

System Components Details

Details on the individual components like cabinet, grille, and transducers (LF, MF, HF) with their specifications.

JBL VT4888 Wiring Diagram

High Frequency Driver Wiring

Illustrates the wiring connections for the high-frequency drivers to the input connector.

Mid Frequency Driver Wiring

Details the wiring connections for the mid-frequency drivers to the input connector.

Low Frequency Driver Wiring

Shows the wiring connections for the low-frequency drivers to the input connector.

JBL VT4888 Component Exploded View

Enclosure Assembly and Driver Components

Exploded view illustrating the main enclosure, HF, MF, and LF drivers, and associated mounting hardware.

JBL VT4888 Specifications

General

Brand	JBL
Model	VT4888
Category	Speakers
Language	English