Read JBL ES 250PW (serv.man2) Service Manual online
Parameter
Specification
Unit
QA Test
Limits
Conditions
Notes
ATO Turn-on time
5
ms
functional Amp connected and AC on, then
input signal applied
Auto Mute/ Turn-OFF Time
5-15
minutes
5-15
T before muting, after signal is
removed
Auto turn of time (T) must be 5 > T < 15
Minutes
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 ON
Turn-off Transient
0.5
V-peak
0.8V
@ Speaker Output
AC Line cycled from ON to OFF
Efficiency
Efficiency
65
%
62
Test conducted at rated power
200W
Nominal Line voltage
Efficiency 1/8 of rated power
48
%
45
Test conducted at 31.25 WRMS
Nominal Line voltage-Rated impedance 4
Ohms
Input Power 1/8 of rated power
61
Watts
69.4
Test conducted at 31.25 WRMS
"
Input current 1/8 of rated power
0.75
Amperes
Reference Test conducted at 31.25 WRMS
"
Standby Input power
15
Watts
16
Nominal Line voltage RED LED
Idle input power
14
Watts
16
@ nom. line voltage
Maximum allowable input power under
nominal Input voltage and frequency, HOT or
COLD operation. LED GREEN no signal
applied
Power Cons. @ rated power
303
Watts
331
@ nom. line voltage
200 Watts @ 4 Ohms nominal line voltage
Protections
Short Circuit Protection
YES
functional Direct short at output
Amplifier should resume operation after short
circuit condition removal
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
(refer to requirements sheet).
DC Offset Protection
YES
-
DC present at Speaker Out leads
Design must insure no Offset/DC Voltage at
the speaker output under any operating
condition including abnormal operation
Line Fuse Rating
USA-Domestic
USA-Domestic
3.15
Amps
3.15
Type-T or Slo Blo-250 V
EU
2
Amps
2
Type-T or Slo Blo-250 V, Low
Breaking capacity
SYSTEM PERFORMANCE USING WIRELESS TRANSMITTER (Tx )
THD @ 1 Watt
0.43
%
0.5
22K filter
Tx Input Impedance
Line Input (LFE)
Line Input (LFE)
7.3K
ohms
n/a
Nominal @ 1KHz
System Sensitivity
Using Tx
Input Frequency
50
Hz
50
Nominal Freq.
System level, using Tx
LFE Input
6.5
mVrms
±1dB
To 1 Watt
System level, using Tx
System gain
50
dB
±1dB
To 1 Watt
System level, using Tx
System Signal to Noise
Using Tx
SNR-A-Weighted
75
dBA
70
relative to 1W
A-Weighting filter
SNR-unweighted
55
dBr
55
relative to 1W
22K filter
Tx Filters
System filter
None
Hz
Should not have any effect on the
FR of the system
Refer to AP Graph
Tx Input Limiter dynamic
range
Maximum input voltage the Tx
range
Maximum input voltage the Tx
line input can take without
exceeding 1% of THD at the
output of the sub amp
5.7
Vrms
functional
Max input voltage Tx front end can handle
without exceeding 1% THD
Tx-Signal Sensing (ATO)
Auto-Turn-On (yes/no)
Auto-Turn-On (yes/no)
YES
functional
ATO Input test frequency
50
Hz
functional
ATO Level LFE Input
2
mV
functional
ES250PW
3
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