JBL CONTROL 28T, CONTROL 28WH Technical Manual

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

JBL CONTROL 28T/WH REV H

PACKAGE

WIRING DIAGRAM

07-04

Technical Manual

JBL CONTROL 28T/WH

SPECIFICATIONS

ACOUSTIC & ELECTRICAL SPECIFICATIONS:

• Nominal Impedance: 8 ohm

• Power Capacity: 175W Continuous Program

• Frequency Range: 55 Hz to 15 kHz (–10 dB)

• Crossover Frequency: 2.8 kHz

SYSTEM COMPONENTS:

• Cabinet: Not For Sale

• Grille: 128-00173-60

• Low Frequency 200mm (8 in.) Cone Transducer: Transducer (124-58001-00)

• DC Resistance: 5.3 ohm ±5% Copper Wire

• Tap Settings: 100V Line: Tap 1 = 7.5W, Tap 2 = 15W

Tap 3 = 30W, Tap 4 is not used

70V Line: Tap 1 = 3.7W, Tap 2 = 7.5W

Tap 3 = 15W, Tap 4 = 30W

SYSTEM COMPONENTS:

(cont’d)

• High Frequency 25mm (1 in.) Polycarbonate Transducer: Dome Tweeter (123-10002-00)

• DC Resistance: 5.0 ohm ±5% Copper Wire

• Crossover Network: 338146-001

AURAL SWEEP TEST SPECIFICATIONS:

A. System Aural Sweep Test: 7.0V Input, 20 Hz to 20 kHz B. L.F.Aural Sweep Test: 7.0V Input, 20 Hz to 1.2 kHz C. H.F. Aural Sweep Test: 2.83V Input, 2 kHz to 20 kHz

PHYSICAL SPECIFICATIONS:

• Enclosure Dimensions: 375mm x 275mm x 215mm D

(15.0 x 11.0 x 8.5 in. D)

• Shipping Weight: 25 lbs. 11 kg.) (in Pairs)

(Net Weight 12lbs. Each)

WARRANTY INFORMATION:

• Refer to Warranty Statement packed with each product.

Warranty 59660 Owners Manual 980-00024-00

Foam Pad (2) 991-00052-00

Packaging

Carton 990-00040-00

Network 338146-001

SCHEMATIC CONTROL 28 (338146-001)

Speaker, High Freq 123-10002-00

Speaker, Low Freq 124-58001-00

YEL

WHT/BLK

WHT

YEL/BLK

R1 4

R2 4

R3 5

SK3 SK3

C1 2µ4

C2 6µF

L2 1mH5

H.F.

123-10002-00

L.F.

124-58001-00

INPUT

NOTE: INDIVIDUAL PARTS FOR THE ABOVE CROSSOVER ARE NOT AVAILABLE.

A COMPLETE REPLACEMENT ASSEMBLY SHOULD BE ORDERED. SK3 LAMP IS AVAILABLE SEPARATELY.

RED

BLK

WHITE BLUE VIOLET

ORANGE

2 YEL

562-00026-00

1 GRN

4 5 6 Not

Used

Switch 546-00003-00

–

L1 400µH

JBL CONTROL 28T/WH

Speaker, High Freq 123-10002-00

Grille Assy 128-00173-60 BLK 128-00173-61 WHT

SK3 Lamp (2)

Baffle Assy (Not fot Sale)

Gasket (Ref)

Network 338146-001

Pivot 888-00026-00

Cabinet (Not For Sale)

“O” Ring

Hardware Kit 179-00005-00

Ball Mount Assy 179-00002-00 BLK 179-00002-01 WHT

Screw (4)

Speaker, Low Freq 124-58001-00

Screw (4)

Screw (2)

Hex Wrench 885-00039-00 6mm x 7

JBL Logo 950-00005-00 Blank Logo (Black) 950-00005-BK Blank Logo (White) 950-00005-WH

Enclosure Plate 888-00025-00

Screw (4)

Screw (6)

Nut 7/16 x 20 (2)

Grille Spacer 389-00003-00

Screw (4)

Transformer/Switch Assy 562-00026-00

Switch 546-00003-00

Switch Plug 921-00008-00

COMPONENT EXPLODED VIEW