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J SERIES LOUDSPEAKERS
7
Specifications J Center J50 J520M J620M
Application Center Bookshelf Bookshelf Bookshelf
Channel
High Frequency 10mm Ti 2" Paper 10mm Ti 10mm Ti
Dome Transducer Composite (Cone) Composite Composite
Midrange Transducer n/a n/a n/a n/a
(Nitrile Polymer Fibre Cone)
Low Frequency Transducer 2 x 3.5" 5" 5" 6
1
⁄2"
(Nitrile Polymer Fibre Cone) (Neo Magnet)
Crossover Frequency 4.5kHz 2.2kHz 4.5kHz 4.5kHz
Frequency 80 Hz to 75 Hz to 70 Hz to 55 Hz to
Response (– 6 dB) 20 kHz 20 kHz 20 kHz 20 kHz
Sensitivity (1 Watt/1 Meter) 87 dB 86 dB 87 dB 88 dB
Nominal Impedance 8 ohms 8 ohms 8 ohms 8 ohms
Recommended 10 to 80 10 to 50 10 to 75 10 to 100
Amplifier Power* Watts Watts Watts Watts
External Dimensions
Height 5
3
⁄16" 11" 12" 15"
Width 14
1
⁄4"6
1
⁄2"7
1
⁄2"8
1
⁄2"
Depth 6
5
⁄8"7
1
⁄4"8
1
⁄2" 10"
External Dimensions
Height 132 mm 280 mm 305 mm 381 mm
Width 362 mm 165 mm 190 mm 216 mm
Depth 168 mm 184 mm 216 mm 254 mm
Weight (each) 7 lbs 7 lbs 8 lbs 12 lbs
3.2 kg 3.2 kg 3.6 kg 5.5 kg
Shipping Weight 10 lbs 18 lbs 20 lbs 28 lbs
4.5 kg 8.2 kg 9.1 kg 12.7 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.
J Series OM 7/27/98 3:50 PM Page 7
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