JBL LS Series, Руководство по обслуживанию

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Parameter Specification Unit QA Test Limits Conditions Notes
Power on Delay time 3 sec. 4 AC Power Applied
Transients/Pops
ATO Transient 0.5 V-peak 0.5V @ Speaker Output
Amplifier activated by signal
presence at the Line input
Turn-on Transient 0.5 V-peak 0.8V @ Speaker Output AC Line cycled from OFF to
Turn-off Transient 0.5 V-peak 0.8V @ Speaker Output AC Line cycled from ON to
Efficiency
Efficiency 65 % 60
Test conducted at
rated power 150W
Nominal Line voltage
Efficiency at 1/8 of rated power 50 % 45
Test conducted at
18.75 WRMS Nominal Line voltage-Rated
impedance 4 Ohms
Off state input power 7 Watts 8 Nominal Line voltage RED
Stand-by Input Power
15 Watts 16 @ nom. line voltage
Maximum allowable input
power under nominal Input
voltage and frequency, HOT or
COLD operation.LED GREEN
Power Cons. @ rated power 384 Watts 416 @ nom. line voltage 150 Watts @ 4 Ohms nominal
Protections
Short Circuit Protection YES functional
Direct short at
output Amplifier should resume
operation after short circuit
Thermal Protection
YES functional
@1/8 max unclipped
Power at 1.06 times
the input voltage
Temperature rise in accessible
metal parts should not exceed
35K rise for domestic version
or 30K rise for European
DC Offset Protection YES -
DC present at
Speaker Out leads
Design must insure no Offset
at the speaker output under
any operating condition
Line Fuse Rating
USA-Domestic
3.15 Amps 2 Type-T or Slo Blo- Internal fuse with UL/SEMKO
EU 2.5 Amps 1.25
Type-T or Slo Blo-
250 V, Low Breaking Internal fuse with UL/SEMKO
rated holder
3
LS120P