JBL ES250P Service Manual page 4

ES250P
Turn-off Transient
Efficiency
Efficiency
Efficiency at 1/8 of rated power
Off state input power
Stand-by Input Power
Power Cons. @ rated power
Protections
Short Circuit Protection
Thermal Protection
DC Offset Protection
Line Fuse Rating
USA-Domestic
EU
Other Parameters/Notes:
1. Limiter circuit response must be clean sounding with no apparent pops, noises, or pumping.
2. Volume control should be at the input buffer stage in order to lessen the possibility of clipping the input section with highly dynamic audio material.
3. ALL SPECS SHOULD BE MEASURED AT NOMINAL LINE VOLTAGE.
Yes/No Hi/Lo Line Nom.
0.8V
0.5 V-peak
60
65 %
45
48 %
12
10 Watts
18
18 Watts
406 Watts 416
YES functional Direct short at output
YES functional
YES -
3.15 Amps 3.15
2 Amps 2
Unit
@ Speaker Output
Test conducted at rated power
250W
Test conducted at 31.25 WRMS
@ nom. line voltage
@ nom. line voltage
@1/8 max unclipped Power at
1.06 times the input voltage
DC present at Speaker Out leads
Type-T or Slo Blo-250 V
Type-T or Slo Blo-250 V, Low
Breaking capacity
3
Notes
AC Line cycled from ON to OFF
Nominal Line voltage
Nominal Line voltage-Rated impedance 4 Ohms
Nominal Line voltage RED LED
Maximum allowable input power under nominal
Input voltage and frequency, HOT or COLD
operation. LED GREEN no signal applied
250 Watts @ 4 Ohms nominal line voltage
Amplifier should resume operation after short
circuit condition removal
Temperature rise in accessible metal parts
should not exceed 35K rise for domestic version
or 30K rise for European versions (refer to
requirements sheet).
Design must insure no Offset at the speaker
output under any operating condition including
abnormal operation
Internal fuse with UL/SEMKO rated holder
Internal fuse with UL/SEMKO rated holder