JBL TLX 121 Service Manual ▷ View online
Technical Manual
TLX 121
ACOUSTIC & ELECTRICAL SPECIFICATIONS
• Nominal Impedance
8 ohms
• Max Amp Power
75 watts
• Frequency Response
55Hz - 25kHz (–6dB)
• Sensitivity
89 dB SPL, 1 watt @ 1 meter
• Crossover Frequency
3000Hz
SYSTEM COMPONENTS:
• Cabinet
TLX 121 (not For Sale)
• Grille
240774 or 332745-001
• Low Frequency
6 1/2” Woofer (974323 or
Transducer
332751-001)
DC Resistance
4.7 ohms ±10%
• High Frequency
10 mm Titanium Composite
Transducer
(974301 or 302343-001)
DC Resistance
5.8 ohms ±10%
SYSTEM COMPONENTS: (cont.)
• Crossover Network
270774 or 332770-001
AURAL SWEEP TEST SPECIFICATIONS:
• System Aural Sweep Test
5.0V Input 50 Hz to 20 kHz
• L.F. Aural Sweep Test
5.0V Input 50 Hz to 4 kHz
• H.F. Aural Sweep Test
2.83V Input 2 kHz to 20 kHz
PHYSICAL SPECIFICATIONS
• Enclosure dimensions:
13 3/4” x 7 7/8” x 9 5/8”
(H x W x D)
(349 x 200 x 245mm)
• Weight
10.5 lbs. (4.8 kg) Each
(Sold in Pairs)
WARRANTY:
• Refer to Warranty Statement packed with each product.
Owner’s Manual
333047-001
333047-001
Warranty Card
331994-001
331994-001
Survey Card
331384-001
331384-001
Top/Bottom
Foam
332744-001
Foam
332744-001
OWNER’S
MANUAL
Outer Carton
9815011
9815011
PACKAGING
+
—
YEL
High Frequency
974301 or
302343-001
974301 or
302343-001
Low Frequency
974323 or
332751-001
974323 or
332751-001
GRN/BLK
GRN
Network
270774 or
332770-001
YEL/BLK
— +
WIRING DIAGRAM
L1
1.20 mH
C2
3.9 mfd, 50V
C1
6.8 mfd
50V
L2
0.39 mH
+
+
+IN
—IN
INPUT
110
.205
.110
.110
H.F.
L.F.
13.77" GREEN
13.77" GREEN/BLACK
17.71" YELLOW
17.71" YELLOW/BLACK
SCHEMATIC TLX 121
1-99
JBL Consumer Products, Inc. 250 Crossways Park Dr., Woodbury, New York 11797
TLX 121
Network
270774
or 332770-001
270774
or 332770-001
Terminal Cup
966050
966050
Screw 3/4 BLK
OVHD (4)
61867
OVHD (4)
61867
Woofer
974323 or 332751-001
974323 or 332751-001
Screw (4)
No. 6x3/4
PHD BLK
61868
No. 6x3/4
PHD BLK
61868
Grille Assy
240774 or 332745-001
240774 or 332745-001
Cabinet
TLX 121
(Not for sale)
TLX 121
(Not for sale)
Plaque
(Not for Sale)
(Not for Sale)
Port Tube
333051-001
333051-001
Tweeter
974301 or
302343-001
974301 or
302343-001
Screw (4)
No. 6x3/4
PPH BLK
63563
No. 6x3/4
PPH BLK
63563
Grille
Retainer (4)
66815
Retainer (4)
66815
Logo
945030
945030
Red
Black
COMPONENT EXPLODED VIEW
TLX 121
TLX 121
1-99
JBL Consumer Products, Inc. 250 Crossways Park Dr., Woodbury, New York 11797
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