Harman JBL SUB 550P, Service Manual, Page: 4 / 43

Parameter Specification Unit
QA Test
Limits Conditions Notes
Efficiency & Consumption
120V
Efficiency 65 % 65 Test conducted at rated power 245WNominal Line voltage
Efficiency at 1/8 of rated powe 52 % 50 Test conducted at 31.25 WRMS Nominal Line voltage-Rated impedance 4 Ohms
Standby input power 120VAC 5.5 Watts 6.5 @ nom. line voltage 120VAC-60Hz Nominal Line voltage LED=>RED
Idle input power 11 Watts
13
@ nom. line voltage 120VAC-60Hz
Maximum allowable input power under nominal
Input voltage and frequency, HOT or COLD
operation. LED GREEN no signal applied
Power Cons. @ rated power 358 Watts 384 @ nom. line voltage 120VAC-60Hz 250 Watts @ 4 Ohms nominal line voltage
Input Current @ rated power 3.8 ARMS Reference @ nom. line voltage 120VAC-60Hz
Efficiency & Consumption
230VAC
Efficiency 65 %
62.5
Test conducted at rated power 250WNominal Line voltage
Efficiency at 1/8 of rated powe 52 %
50
Test conducted at 31.25 WRMS Nominal Line voltage-Rated impedance 4 Ohms
Standby input power 230VAC 0.5 Watts 0.55 230VAC, 50-60Hz Nominal Line voltage LED=>RED
Idle input power 15 Watts 16 @ nom. line voltage and Frequency
Maximum allowable input power under nominal
Input voltage and frequency, HOT or COLD
operation. LED GREEN no signal applied
Power Cons. @ rated power 393 Watts 400 @ nom. line voltage and Frequency 250 Watts @ 4 Ohms nominal line voltage
Input Current @ rated power 2.14 ARMS
Reference @ nom. line voltage and Frequency
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 version
or 30K rise for European versions (refer to
requirements sheet).
DC Offset Protection YES - DC present at Speaker Out leads
Design must insure no Offset at the speaker
output under any operating condition including
abnormal operation
Line Fuse Rating
USA-Domestic 3.15 Amps 3.15 Type-T or Slo Blo-250 V, 3AG Type Internal fuse with UL/SEMKO rated holder
EU 2.5 Amps 2.5
5x20mm Type-T-250 V, Low
Breaking capacity
Internal fuse with UL/SEMKO rated holder
Transformer
Flux Density <12.5 KGauss n/a @ Nom. line voltage No Audible hum/buzz or excess idle current
Power losses 4.65 Watts Reference 120VAC-60Hz
Magnetizing current 0.044 Amps Reference RMS 120VAC-60Hz
All Agency Approvals YES n/a
Required per UL/CSA/SEMKO
Standards
Refer to "Requirements" sheet
Other Parameters/Notes:
1. Limiter circuit response must be clean sounding with no apparent pops, noises, or pumping.
2. Plate dimensions not to exceed 11.81"H x 7.87"W and the plate must be airtight with no possibility of air leaks (plastic cover required).
3. 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.
4. ALL SPECS SHOULD BE MEASURED AT NOMINAL LINE VOLTAGE.
Rev-00 July-12-2011, Eng-reference sample
SUB 550P / 230
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