JBL PowerBass PB10, Предварительное руководство по обслуживанию

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JBL PB 10
150W Powered Sub Amp
LINE VOLTAGE Yes/No Hi/Lo Line Nom. Unit Notes
US 120vac/60Hz Yes 108-132 120 Vrms Normal Operation
EU 230vac/50-60Hz Yes 207-264 230 Vrms Normal operation, MOMS required
Parameter Specification Unit
QA Test
Limits Conditions Notes
Amp Section
Type (Class AB, D, other) D n/a n/a Class D Preferred...Sink required for Class AB
Load Impedance (speaker) 4 Ohms n/a Nominal Z-curve required
Rated Output Power 150 Watts 70 1 input driven
THD @ Rated Power 0.3 % 1 22k filter 75 Watts
THD @ 1 Watt 0.1 %
0.5
22k filter
DC Offset 10 mV-DC 20 @ Speaker Outputs
Damping factor 50 DF 35
Measured at the amplifier board THD < 0.1% 75
Watts @ 50Hz
Input Sensitivity
Input Frequency 50 Hz 50 Nominal Freq.
L&R 128 mVrms
±2dB
To 75 Watts Single input driven LP defeat switch OFF
LFE 128 mVrms ±2dB To 75 Watts LP defeat switch ON- Single input driven
Speaker/Hi Level Input 1.28 Vrms ±2dB To 75 Watts Single input driven
Signal to Noise
SNR-A-Weighted 100 dBA 75 relative to rated power A-Weighting filter
SNR-unweighted 80 dBr 80 relative to rated power 22k filter
SNR rel. 1W-unweighted 65 dBr
60
relative to 1W Output 22k filter
Residual Noise Floor 1 mVrms 2
Volume @max, using DVM or A/P
(BW=20 KHz)
Residual Noise Floor 1.5 mVrms(max) 2
Volume @max, w/ A/P Swept
Bandpass Measurement (Line
freq.+ harmonics) (BW=20Khz)
Input Impedance
Line Input 20K ohms n/a Nominal
Speaker/Hi Level Input 4.7K ohms n/a Nominal
Filters
Speaker in LP 2nd order variable 60-150 Hz ± 10
Subsonic filter (HPF) fixed 6th order Fixed
LFE Low pass 2nd order fixed 200>LP<1K Hz
Single input E106+E74
Speaker out HP filter
Left & Right
200 Hz ± 10 Speaker input - Spkr out 4 Ohms
Left & Right 100 Hz ± 10 Speaker input - Spkr out 8 Ohms
Limiter
THD at Max. Output Power n/a n/a functional Maximum Output Power Maximum THD as a result of limiting.
Signal Sensing (ATO)
Auto-Turn-On (yes/no) YES functional Auto - on selection switch in Auto
ATO Input test frequency 50 Hz functional "
ATO Level LFE Input 4 mV functional "
ATO Level Speaker in 50 mV functional "
ATO Turn-on time 5 ms functional
Auto Mute/ Turn-OFF Time 15 minutes 17
Power on Delay time 3 sec. 4 AC Power Applied
Transients/Pops
ATO Transient 5 mV-peak n/a @ Speaker Outputs
Turn-on Transient 50 mV-peak 2v-pp @ Speaker Outputs AC Line cycled from OFF to ON
Turn-off Transient 50 mV-peak 2v-pp @ Speaker Outputs AC Line cycled from ON to OFF
Efficiency 65 % 64 Nominal Line voltage 120 VAC / 230 VAC
Stand-by Input Power 15 Watts 18 @ nom. line voltage 0
Power Cons. @ rated power 115 Watts 120 @ nom. line voltage 75 Watts @ 4 Ohms nominal line voltage
Protection
Short Circuit Protection YES
functional Direct short at output
Thermal Protection YES
functional @1/8 max unclipped Power
DC Offset Protection YES - DC present at Speaker Out leads
Line Fuse Rating US version Amps 1.5 Type-T or Slo Blo-250 V Internal fuse
EU Amps TBD Type-T or Slo Blo-250 V External fuse with UL/SEMKO rated holder