JBL Studio L Series Technical Manual

Technical Manual
L890
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance
• Max Amp Power
• Frequency Response
• Sensitivity
• Crossover Frequencies
SYSTEM COMPONENTS:
• Grille
• Low-Frequency Transducer
DC Resistance
• Mid-Frequency Transducer
DC Resistance
• High-Frequency Transducer
DC Resistance
• Ultrahigh-Frequency
Transducer
DC Resistance
• Crossover Network
PACKAGING
JBL Consumer Products, 250 Crossways Park Drive, Woodbury, New York 11797
8 ohms
250 watts*
28Hz – 40kHz (±3dB)
91dB (2.83V @ 1 meter)
700Hz, 5kHz, 20kHz
353231-001
Dual 8" (202mm) PolyPlas ™
cone, shielded (353111-001)
9.4 ohms ±10%
4" (101mm) PolyPlas ™
cone, shielded (353116-001)
4.8 ohms ±10%
1" (25mm) Pure-titanium
dome (353237-001)
3.3 ohms ±10%
3/4" (19mm) Mylar ® dome
(353107-001)
3.6 ohms ±10%
353584-001
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20
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Legend on Page 2
AURAL SWEEP TEST SPECIFICATIONS:
• System Aural Sweep Test
• L.F. Aural Sweep Test
• M.F. Aural Sweep Test
• H.F. Aural Sweep Test
• U.H.F. Aural Sweep Test
PHYSICAL SPECIFICATIONS:
• Enclosure dimensions
(H x W x D)
• Weight
WARRANTY:
• Refer to Warranty Statement packed with each product.
* The maximum recommended amplifier power rating will
ensure proper system headroom to allow for occasional
peaks. We do not recommend sustained operation at these
maximum power levels.
CROSSOVER
NETWORK
353584-001
MID-FREQUENCY
TRANSDUCER
353116-001
RED
BLK
WHT/BLK
ORG
TRANSDUCER
ORG/BLK
L890 SCHEMATIC
+
L1
C1B
LF
3.0mH
0.01uf
INPUT
100V
–
+
C2B
R1
C2
0.64mH
0.01uf 1.8ohm
HF/UHF
20uf
100V 10W
100V
INPUT
–
R2
1.8ohm
C4
10W
C4B
5uf
0.01uf
100V
100V
R3
3.9ohm
C5
5W C5B
0.5uf
0.01uf
100V
100V
6.0V Input 30Hz to 20kHz
5.0V Input 30Hz to 1kHz
5.0V Input 500Hz to 5kHz
2.83V Input 5kHz to 20kHz
n/a
42-1/4" x 10-1/4" x 15"
(1073mm x 259mm x 380mm)
60 lb (27.3kg) Each
LOW-FREQUENCY
TRANSDUCERS (2)
353111-001
GRN
GRN/BLK
WHT
YEL
YEL/BLK
ULTRAHIGH-
HIGH-FREQUENCY
FREQUENCY
TRANSDUCER
353237-001
353107-001
20" GRN
.250
.250
C1
80uf
100V
.205
.205
20" GRN/BLK
27" WHT
.250
L2
L3
M.F.
C3B C3
0.7mH
0.01uf 15uf
100V 100V
.205
27" WHT/BLK
30" YEL
.205
L4
0.18mH
.110
30" YEL/BLK
36" ORG
.205
C6
U.H.F.
C6B
L5
0.5uf
0.01uf
0.04mH
100V
100V
.110
36" ORG/BLK
L.F.
H.F.
11/05