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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 Avr 230 5 Channel 300 Watt Av Stereo Receiver No Remote -WorkingHarman Kardon Avr 230 5 Channel 300 Watt Av Stereo Receiver No Remote -Working $89.99
Harman Kardon Pa2000 Bridgeable Multichannel AmplifierHarman Kardon Pa2000 Bridgeable Multichannel Amplifier $135.00 Harman Kardon Hk 610 Integrated Amplifier - Working, Visible Wear, No AccessorieHarman Kardon Hk 610 Integrated Amplifier - Working, Visible Wear, No Accessorie $9.51
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 Intergrated Ampharman kardon Intergrated Amp $295.00
Harman Kardon A224 Amplifier-workingHarman Kardon A224 Amplifier-working $450.00 Harman/Kardon 75+Twin Power amp board's and het sinks untestedHarman/Kardon 75+Twin Power amp board's and het sinks untested $75.99
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 Pa2000 Pa-2000 Bridgeable Stereo / Mono AmplifierHarman Kardon Pa2000 Pa-2000 Bridgeable Stereo / Mono Amplifier $198.00
Harman Kardon Hk6500 | Intergrated Amplifier (Brand New!)Harman Kardon Hk6500 | Intergrated Amplifier (Brand New!) $2,086.39 Harman Kardon Avr 230 310 Watt Receiver 6.1 Channels - For Parts ReadHarman Kardon Avr 230 310 Watt Receiver 6.1 Channels - For Parts Read $82.35
Harman / Kardon - Hk3470 - Stereo Receiver AmplifierHarman / Kardon - Hk3470 - Stereo Receiver Amplifier $118.00 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 Hk 870 Power Amplifier Vintage Confirmed Operation Free ShipHarman Kardon Hk 870 Power Amplifier Vintage Confirmed Operation Free Ship $559.00 Harman Kardon Pa 4000 Power Amplifier Power Tested Only - As-Is, For Parts, ReadHarman Kardon Pa 4000 Power Amplifier Power Tested Only - As-Is, For Parts, Read $149.95
Harman/ Kardon Hk620 AmplifierHarman/ Kardon Hk620 Amplifier $119.99 Harman Kardon Vtg A-300 AmpHarman Kardon Vtg A-300 Amp $850.00
Harman Kardon A402 Integrated Amplifier | Tested | Working | Read DescriptionHarman Kardon A402 Integrated Amplifier | Tested | Working | Read Description $419.95 Harman Kardan Ez Set / Eq High Quality Audio Stereo Amplifier Hkts-11 Set Of 2Harman Kardan Ez Set / Eq High Quality Audio Stereo Amplifier Hkts-11 Set Of 2 $5.00
Harman/Kardon Hk6350R Stereo Intergrated Amplifier No Remote One Channel QuietHarman/Kardon Hk6350R Stereo Intergrated Amplifier No Remote One Channel Quiet $47.59 Harman Kardon Hk870 Stereo Power Amplifier – Vintage, Excellent ConditionHarman Kardon Hk870 Stereo Power Amplifier – Vintage, Excellent Condition $425.00
Harman Kardon Avr300 HiFi Stereo 6.1 Channel Receiver Powers onHarman Kardon Avr300 HiFi Stereo 6.1 Channel Receiver Powers on $29.07 Harman Kardon AmplifierHarman Kardon Amplifier $250.00
Harman Kardon Hk 3700 170W 2-Channel High Performance Stereo Receiver AmplifierHarman Kardon Hk 3700 170W 2-Channel High Performance Stereo Receiver Amplifier $399.77 Harman Kardon Hk870 Stereo Power Amplifier – 100w per channelHarman Kardon Hk870 Stereo Power Amplifier – 100w per channel $450.00
Harman Kardon Pa4000 Multichannel Power AmplifierHarman Kardon Pa4000 Multichannel Power Amplifier $370.00 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
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 Pa2000 Bridgeable Stereo Or Mono AmplifierHarman Kardon Pa2000 Bridgeable Stereo Or Mono Amplifier $250.00
Harman / Kardon Pa2200 200W 8 Ohm Home Stereo HiFi AmplifierHarman / Kardon Pa2200 200W 8 Ohm Home Stereo HiFi Amplifier $250.00 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
Harman Kardon Pa2200 Signature Series Stereo Power Amplifier TestedHarman Kardon Pa2200 Signature Series Stereo Power Amplifier Tested $350.00 Harman/Kardon Hk870 Power Amplifier UsedHarman/Kardon Hk870 Power Amplifier Used $583.60
Harman Kardon Twelve 12 vintage stereo power amplifier.Harman Kardon Twelve 12 vintage stereo power amplifier. $350.00 Harman Kardon Pa2000 Amplifier Hifi Audio Stereo MonoHarman Kardon Pa2000 Amplifier Hifi Audio Stereo Mono $199.99
Harman Kardon A401 Stereophonic Control Amplifier 1970sHarman Kardon A401 Stereophonic Control Amplifier 1970s $300.00 Harman Kardon Pa 5800 5 Channel Power Amplifier Works Great!Harman Kardon Pa 5800 5 Channel Power Amplifier Works Great! $275.00
Harman Kardon Hk 3700 170W 2-Channel Stereo Amplifier Factory Recertified OpenHarman Kardon Hk 3700 170W 2-Channel Stereo Amplifier Factory Recertified Open $599.99 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 Pa 4000 Power Amplifier As IsHarman Kardon Pa 4000 Power Amplifier As Is $129.00 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 Hk6500 Integrated Stereo Amplifier – Working w/ CableHarman Kardon Hk6500 Integrated Stereo Amplifier – Working w/ Cable $150.00 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 hk750 Ultrawideband Dc Amplifier – Tested –Harman Kardon hk750 Ultrawideband Dc Amplifier – Tested – $134.99 Harman Kardon Hk 1400 Line AmplifierHarman Kardon Hk 1400 Line Amplifier $150.00
Harmon / Kardon A-401 Stereophonic Control Amplifier - Fair ConditionHarmon / Kardon A-401 Stereophonic Control Amplifier - Fair Condition $244.34 Harmon Kardon Pa 2400 Stereo Power AmpHarmon Kardon Pa 2400 Stereo Power Amp $475.00
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 A401 Stereophonic Control Amplifier Free shipping Usa/CanadaHarman Kardon A401 Stereophonic Control Amplifier Free shipping Usa/Canada $400.00 Harman Kardon Hk6350R Integrated AmplifierHarman Kardon Hk6350R Integrated Amplifier $175.00
Harman Kardon Hk505 Stereo AmplifierHarman Kardon Hk505 Stereo Amplifier $425.00 Harman Kardon A-401 Integrated Amplifier Fully rebuilt and Recapped! servicedHarman Kardon A-401 Integrated Amplifier Fully rebuilt and Recapped! serviced $450.00
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Prices current as of last update, 06/26/25 12:50am.

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