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Harman Kardon

An electronic amplifier is a device for increasing the current, voltage or power of a signal. It does this by taking power from a power supply and controlling the output to match the input signal shape but with a larger amplitude. more...

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Harman/Kardon Hk3550 Stereo Receiver Powers On *please Read*Harman/Kardon Hk3550 Stereo Receiver Powers On *please Read* $62.89 Harman Kardon Pa2000 Bridgeable Stereo Or Mono Amplifier<script type=el();Harman Kardon Pa2000 Bridgeable Stereo Or Mono Amplifiercript type="text/javascript">eb(1, 'price_link'); $149.99
Harman Kardon Pa5800 5 Channel Power Amplifier Amp - Not Fully Tested!Harman Kardon Pa5800 5 Channel Power Amplifier Amp - Not Fully Tested! $120.00 Harman/Kardon Hk870 Power AmplifierHarman/Kardon Hk870 Power Amplifier $780.41
Harman Kardon Hk6350R Integrated AmplifierHarman Kardon Hk6350R Integrated Amplifier $175.00 Harman Kardon A-401 Integrated Amplifier Fully rebuilt and Recapped! servicedHarman Kardon A-401 Integrated Amplifier Fully rebuilt and Recapped! serviced $450.00
Harman Kardon Hk 3700 170W 2-Channel High Performance Stereo Receiver AmplifierHarman Kardon Hk 3700 170W 2-Channel High Performance Stereo Receiver Amplifier $349.77 Harman Kardon Hk6500 | Intergrated Amplifier (Brand New!)Harman Kardon Hk6500 | Intergrated Amplifier (Brand New!) $2,086.39
New ListingHarman Kardon Avr 230 310 Watt Receiver 6.1 Channels - For Parts ReadNew ListingHarman Kardon Avr 230 310 Watt Receiver 6.1 Channels - For Parts Read $81.24 Harman Kardon Pa2000 Pa-2000 Bridgeable Stereo / Mono AmplifierHarman Kardon Pa2000 Pa-2000 Bridgeable Stereo / Mono Amplifier $220.00
Harman Kardon Pa2000 Bridgeable Stereo Or Mono AmplifierHarman Kardon Pa2000 Bridgeable Stereo Or Mono Amplifier $250.00 Harman Kardon Pa 4000 Power Amplifier As IsHarman Kardon Pa 4000 Power Amplifier As Is $129.00
Harmon Kardon 990 Vxi Stereo Amplifier Working Great ConditionHarmon Kardon 990 Vxi Stereo Amplifier Working Great Condition $307.44 Harman Kardon Hk6500 Integrated Stereo Amplifier – Vintage HiFi – WorkingHarman Kardon Hk6500 Integrated Stereo Amplifier – Vintage HiFi – Working $139.00
Harmon Kardon Hk 503 Dc Coupled Integrated AmpHarmon Kardon Hk 503 Dc Coupled Integrated Amp $250.00 Harman Kardon Pa 2100 Signature Series AmplifierHarman Kardon Pa 2100 Signature Series Amplifier $240.00
Harman Kardon Hk870 Stereo Power Amplifier – Vintage, Excellent ConditionHarman Kardon Hk870 Stereo Power Amplifier – Vintage, Excellent Condition $425.00 Harmon / Kardon A-401 Stereophonic Control Amplifier - Fair ConditionHarmon / Kardon A-401 Stereophonic Control Amplifier - Fair Condition $232.12
Crown/Harman Kardon Cdi 1000 2 Channel Power Amplifier 500 WattsCrown/Harman Kardon Cdi 1000 2 Channel Power Amplifier 500 Watts $1,299.95 Harman Kardon Pa2200 Signature Series Stereo Power Amplifier TestedHarman Kardon Pa2200 Signature Series Stereo Power Amplifier Tested $350.00
Harman Kardon Avr 230 5 Channel 300 Watt Av Stereo Receiver No RemoteHarman Kardon Avr 230 5 Channel 300 Watt Av Stereo Receiver No Remote $48.95 Harman Kardon Pa2000 Bridgeable Multichannel AmplifierHarman Kardon Pa2000 Bridgeable Multichannel Amplifier $135.00
New ListingHarman-Kardon A•401 Amplifier A-401New ListingHarman-Kardon A•401 Amplifier A-401 $149.99 Harman Kardon Pa2000 Pa-2000 Bridgeable Stereo / Mono Amplifier 2x 100WattsHarman Kardon Pa2000 Pa-2000 Bridgeable Stereo / Mono Amplifier 2x 100Watts $250.00
Harman/ Kardon Hk620 AmplifierHarman/ Kardon Hk620 Amplifier $119.99 Harman Kardon AmplifierHarman Kardon Amplifier $250.00
Harman Kardon A401 Stereophonic Control Amplifier Free shipping Usa/CanadaHarman Kardon A401 Stereophonic Control Amplifier Free shipping Usa/Canada $400.00 Harman Kardon Festival T300 Preamp Tuner & 500J Power Amp UsedHarman Kardon Festival T300 Preamp Tuner & 500J Power Amp Used $420.87
Harman Kardon Pa2000 Bridgeable Multichannel Amplifier Tested Working 4x45 100x2Harman Kardon Pa2000 Bridgeable Multichannel Amplifier Tested Working 4x45 100x2 $159.99 Harmon Kardon Signature 2.1 - 5 Channel Amp - Great Condition.Harmon Kardon Signature 2.1 - 5 Channel Amp - Great Condition. $425.00
Harman Kardon A1000T Stereo Solid State Integrated AmplifierHarman Kardon A1000T Stereo Solid State Integrated Amplifier $625.00 Harman Kardon Pa4000 Multichannel Power AmplifierHarman Kardon Pa4000 Multichannel Power Amplifier $370.00
Harman Kardon Hk505 Stereo AmplifierHarman Kardon Hk505 Stereo Amplifier $425.00 Harman Kardon Hk 670 Stereo Amplifier | Used | Working | With Cable | No RemoteHarman Kardon Hk 670 Stereo Amplifier | Used | Working | With Cable | No Remote $140.00
New ListingStereo Power Amplifier Harman Kardon Hk 870.New ListingStereo Power Amplifier Harman Kardon Hk 870. $1,133.58 Harman Kardon A402 Integrated Amplifier | Tested | Working | Read DescriptionHarman Kardon A402 Integrated Amplifier | Tested | Working | Read Description $419.95
Harman Kardon Hk 3385 Stereo Receiver 2-Channel Powers On, No Further TestingHarman Kardon Hk 3385 Stereo Receiver 2-Channel Powers On, No Further Testing $59.95 Vtg Harman Kardon 50+ Multichannel Receiver stereo integrated amp amplifierVtg Harman Kardon 50+ Multichannel Receiver stereo integrated amp amplifier $124.99
Harman Kardon Signature Series 2.1 5 Channel Power Amp & 2.0 Tuner SetHarman Kardon Signature Series 2.1 5 Channel Power Amp & 2.0 Tuner Set $450.00 Harman Kardon Citation 5.1 AmpHarman Kardon Citation 5.1 Amp $949.99
Harman Kardon Twelve 12 vintage stereo power amplifier.Harman Kardon Twelve 12 vintage stereo power amplifier. $350.00 Harman Kardon Avr 230 6.1 Channel 300 Watt Receiver - Tested And WorkingHarman Kardon Avr 230 6.1 Channel 300 Watt Receiver - Tested And Working $99.99
Harman / Kardon - Hk3470 - Stereo Receiver AmplifierHarman / Kardon - Hk3470 - Stereo Receiver Amplifier $118.00 Harman Kardon Hk 1400 Line AmplifierHarman Kardon Hk 1400 Line Amplifier $150.00
Harmon Kardon Pa 2400 Stereo Power AmpHarmon Kardon Pa 2400 Stereo Power Amp $475.00 Harman Kardon Hk 870 Power Amplifier Vintage Confirmed Operation Free ShipHarman Kardon Hk 870 Power Amplifier Vintage Confirmed Operation Free Ship $559.00
Harman Kardon Pa 5800 5 Channel Power Amplifier Works Great!Harman Kardon Pa 5800 5 Channel Power Amplifier Works Great! $220.00 Harmon Kardon Hk 3385 2 Channel 160 Watt Receiver Powers On, No Vfd, As-IsHarmon Kardon Hk 3385 2 Channel 160 Watt Receiver Powers On, No Vfd, As-Is $51.99
Harman/Kardon Hk6350R Stereo Intergrated Amplifier No Remote One Channel QuietHarman/Kardon Hk6350R Stereo Intergrated Amplifier No Remote One Channel Quiet $45.21 Harman Kardon Ca470 Amplifier High-Quality Audio Performance very good conditionHarman Kardon Ca470 Amplifier High-Quality Audio Performance very good condition $275.00
⭐️Pair Of Harman/Kardon Hk775 Ultrawideband Mono Dc Power Amplifier Tested⭐️⭐️Pair Of Harman/Kardon Hk775 Ultrawideband Mono Dc Power Amplifier Tested⭐️ $899.00 Harman Kardon Avr 230 6.1 Channel 300 Watt Receiver - No RemoteHarman Kardon Avr 230 6.1 Channel 300 Watt Receiver - No Remote $65.00
Harman Kardon Hk3250 Stereo Am/Fm Receiver Amplifier Used Workng Ships FastHarman Kardon Hk3250 Stereo Am/Fm Receiver Amplifier Used Workng Ships Fast $95.00 Harman Kardon Hk6500 Integrated Stereo Amplifier – Working w/ CableHarman Kardon Hk6500 Integrated Stereo Amplifier – Working w/ Cable $150.00
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Prices current as of last update, 07/17/25 2:50pm.

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