Specifications
J820M
J830M
J900MII
J1000MII
Application
Bookshelf
Bookshelf
Tower
Tower
High Frequency 14mm" Ti
14mm Ti
14mm Ti
14mm Ti
14mm Ti
Dome Transducer
Composite
Composite
Composite
Composite
Midrange Transducer
n/a
6
1
⁄
2
"
6
1
⁄
2
"
6
1
⁄
2
"
(Nitrile Polymer Fibre Cone)
Low Frequency Transducer
8"
8"
8"
10"
(Nitrile Polymer Fibre Cone)
Crossover Frequency
3.5kHz
3.5kHz
3.5kHz
3.5kHz
Frequency
50 Hz to
45 Hz to
42 Hz to
40 Hz to
Response (– 6 dB)
20 kHz
20 kHz
20 kHz
20 kHz
Sensitivity (1 Watt/1 Meter)
90 dB
92 dB
92 dB
92 dB
Nominal Impedance
8 ohms
8 ohms
8 ohms
8 ohms
Recommended
10 to 125
10 to 150
10 to 150
10 to 175
Amplifier Power*
Watts
Watts
Watts
Watts
External Dimensions
Height 19
1
⁄
4
"
24"
32
3
⁄
16
"
36"
Width
10"
10"
10"
11
3
⁄
4
"
Depth
10"
12"
12"
12"
External Dimensions
Height
489 mm
610 mm
818mm
915 mm
Width
254 mm
254 mm
254 mm
298 mm
Depth
254 mm
305 mm
305 mm
305 mm
Weight (each)
18 lbs
25 lbs
28 lbs
32 lbs
8.2 kg
11.3 kg
12.7 kg
14.5 kg
Shipping Weight
40 lbs
29 lbs
32 lbs
36 lbs
18.2 kg
13.2 kg
14.5 kg
16.4 kg
*The maximum recommended amplifier power rating will insure proper system headroom
to allow for occasional program peaks. We do not recommend sustained operation at
these maximum power Levels.
JBL continually strives to improve its products. New materials, production methods and design refinements are
introduced into existing models without notice as a routine expression of our design philosophy. For this reason,
JBL J Series Loudspeakers may differ in some respect from their published specifications and descriptions, but
will always equal or exceed the original specifications unless otherwise stated.
250 Crossways Park Drive, Woodbury, NY 11797
8500 Balboa Blvd., Northridge, CA 91329
A Harman International Company
Part No. 332373-001
Printed in Taiwan
J SERIES LOUDSPEAKERS
J Series OM 7/28/98 10:20 AM Page 8
