Detailed Specifications - JBL ES250PW Service Manual

ES250PW
ES250PW 250W Powered Sub Amp
LINE VOLTAGE
US 120vac/60Hz
EU 230vac/50-60Hz
Parameter
Amp Section
Type (Class AB, D, other)
Load Impedance (speaker)
AVG System impedance
Min System impedance
Rated Output Power (120VAC)
AVG RMS Dynamic Power
THD @ Rated Power
THD @ 1 Watt
DC Offset
Damping factor
Input Sensitivity
Input Frequency
L or R
LFE input
System Gain (L or R inputs)
System Gain (LFE input)
Signal to Noise
SNR-A-Weighted
SNR-unweighted
Residual Noise Floor
Input Impedance
Line Input (L, R,LFE)
Filters
LP filter Variable (Normal mode)
Subsonic filter (HPF) 2nd Order
Friend circuit
LFE Low pass
Limiter
THD at Max. Output Power
Features
Volume pot Taper (lin/log)
Phase switch
LP Filter defeat switch
Wireless ready
Wireless channels
LED Indicator
Input Configuration
Line in (L,R) & LFE
Signal Sensing (ATO)
Auto-Turn-On (yes/no)
ATO Input test frequency
ATO Line level input
Yes/No Hi/Lo Line Nom.
Yes 108-132
Yes 207-253
QA Test
Specification Unit
Limits
D n/a
4 Ohms
7.25 Ohms
4.385 Ohms
250 Watts 240
336 Watts Reference 200mV driven into LFE input
0.5 %
0.2 %
10 mV-DC
>50 DF
50 Hz
13 mVrms ±1dB
7 mVrms ±1dB
43.7 dB Reference
49.1 dB Reference
80 dBA
65 dBr
<1.5 mVrms(max)
10K ohms
50-150 Hz ± 10
Fixed
Fixed
200>LP<500 Hz
5 % functional
--
LOG -- functional
0-180 deg functional
YES functional
YES functional
4 n/a functional
YES functional
YES -- functional
YES functional
50 Hz functional
1.5 mV functional
Unit
120 Vrms
230 Vrms
Conditions
n/a
n/a Nominal
n/a AP Computed BW 20 to 500Hz
n/a @ 92Hz
1 22K filter
0.3 22K filter
30 @ Speaker Outputs
Measured at amplifier board 90%
20
of full power
50 Nominal Freq.
To 1 Watt, AP Zo=600
To 1 Watt, AP Zo=600
75 relative to 1W
60 relative to 1W
Volume @max, w/ A/P Swept
2.5 Bandpass Measurement (Line
freq.+ harmonics) (BW=20 KHz)
n/a Nominal
LFE input driven only
Drive unit 6dB above the required
level to obtain full power
Approximately 800mV single input
driven, L or R input
2
Notes
Normal Operation
Normal operation, MOMS required
Notes
Domestic version only 120 VAC-60 Hz
Average RMS power, 3/20 Cycles 50 Hz,
Driven 6dB above its input sensitivity ,
average of the RMS value for the first 4
consecutive peaks
Measured at the speaker cable. 225 Watts @
THD < 0.1 % @ 50 Hz
Single input driven, either L or R
LFE input driven only.
Single input driven L or R inputs (Local inputs)
Single input driven LFE, local input
A-Weighting filter
22K filter
Line level inputs must be terminated using
1KOHM
4th Order variable-24 db/Octave
Maximum THD as a result of limiting.
A Taper
Disables LP filter, Wireless mode only, it has
no effect when using local inputs
Refer to Wireless section below
System is provided with 4 wireless channels,
which can be selected via a rear panel switch,
channel should match ID at Tx side
RED-Standby, GRN-Active, ORG-Wireless
link and subwoofer are active.
3 RCA Jacks, RED, WHT (Left and Right) and
Purple for LFE
Maximum acceptable level.