Harman Kardon SUB-TS7, Service Manual

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SUB-TS7 100W Powered Sub/ Plate Amp
SUB-TS8 100W Powered Sub/ Plate Amp
LINE VOLTAGE Yes/No Hi/Lo Line Nom. Unit Notes
US 120vac/60Hz Yes 108-132 120 Vrms Normal Operation
Parameter
Nonimal
Specification
Unit
QA Test
Limits
Conditions Notes
Amp Section
Type (Class AB, D, other) AB n/a n/a
Load Impedance (speaker) 4 Ohms n/a Nominal
Rated Output Power 100 Watts 75 50 - 250 Hz, 1 input driven, limiter off
THD @ Rated Power 0.08 % 0.1 22k filter
THD @ 1 Watt 0.15 % 0.5 22k filter
DC Offset 5 mV-DC 30 @ Speaker Outputs
Damping factor >100 n/a 30 Measured at amplifier board
Measured at the speaker at speaker output
terminals on the amp board.
Input Sensitivity
Input Frequency 50 Hz n/a Nominal Freq.
Line (L&R) Input 220 mVrms 154 - 308 To Rated Power Single input driven
SUB (LFE) Input 125 mVrms 87 - 175 To Rated Power SUB (LFE) input driven only
Speaker/Hi Level Input 2.2 Vrms 1.5 - 3.0 To Rated Power (20 dB below Line In), Single input driven
Hi Level Max. Input Voltage 32 Vrms
30
Nominal Freq., Min. Volume
Signal to Noise
SNR-A-Weighted 100 dB 85 relative to rated power A-Weighting filter
SNR-unweighted 90 dB 80 relative to rated power 22k filter
SNR rel. 1W-unweighted 65 dB 60 relative to 1W Output 22k filter
Residual Noise Floor 1.2 mVrms
3.0
Volume @max, using RMS reading
DMM/VOM (or A/P)
Residual Noise Floor 0.8 mVrms 2.0
Volume @max, w/ A/P Swept Bandpass
Measurement (Line freq.+ harmonics)
Input Impedance
Line Input (L, R,LFE) 10K ohms n/a Nominal
Speaker/Hi Level Input 4.7K ohms
n/a
Nominal
Filters
L&R Fixed Low-Pass Filter 170 Hz 150 - 200 @ -6dB ref. 100Hz 2nd order fixed
SUB (LFE) Low pass Filter 270 Hz 240 - 300 @ -3dB ref. 100Hz 2nd order fixed
Subsonic filter (HPF) 3rd Order 28 Hz 22 - 28 @ -3dB ref. 30Hz 3rd order fixed
Limiter
THD at Max. Output Power 2.0 %
5.0
Features
Auto - On -Off Selection Switch YES functional Refer to ATO section
Phase Switch 0-180 deg functional
Filter On/Off Switch YES functional
Volume Pot Taper (Lin/Log) LOG
functional
A Taper
Speaker Out YES
functional
Binding post connector L&R
2-Color LED power indicator YES functional Blue: On, Amber: Stand-by
Power Switch YES functional
Fuse Holder YES functional
Input Configuration
Line In (L,R) YES functional Dual RCA jack
SUB (LFE) YES functional RCA jack
Speaker/Hi Level In YES functional Binding post connector L&R
Signal Sensing (ATO)
Auto-Turn-On (yes/no) YES functional Auto - on selection switch in Auto
ATO Input test frequency 50 Hz n/a Auto - on selection switch in Auto
ATO Level Line & SUB Input 4.0 mV
2.0 - 6.0
Auto - on selection switch in Auto
ATO Level Speaker in 40 mV 25 - 55 Auto - on selection switch in Auto
ATO Turn-on time 5 ms functional
Amp connected and AC on, then input
signal applied
ATO Turn-OFF Time 15 minutes 10 - 20
Time before muting, after signal is
removed
Power on Delay time 3 sec.
functional AC Power Applied
Transients/Pops
ATO Transient 5 mV-peak 10 @ Speaker Outputs
Turn-on Transient 50 mV-peak 100 @ Speaker Outputs AC Line cycled from OFF to ON
SUB-TS7/TS8 harman/kardon
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