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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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Adcom Gfa-535 stereo amplifier Tested & working! (Missing Button)Adcom Gfa-535 stereo amplifier Tested & working! (Missing Button) $139.99 Adcom Gfa-545 Ii 2 Channel Power Amplifier. 100 Wpc. Spotless & Never Abused.Adcom Gfa-545 Ii 2 Channel Power Amplifier. 100 Wpc. Spotless & Never Abused. $290.00
Adcom Gfa-555 2-Channel Stereo Power Amplifier - 200 Wpc - Cleaned - TestedAdcom Gfa-555 2-Channel Stereo Power Amplifier - 200 Wpc - Cleaned - Tested $899.95 Adcom Gfa-6002 2-Channel Bridgeable Stereo Amplifier Gfa6002 Power AmpAdcom Gfa-6002 2-Channel Bridgeable Stereo Amplifier Gfa6002 Power Amp $199.00
💥 Adcom Gfa-535 Ii Stereo Power Amplifier High Current Vintage Audio Equipment💥 Adcom Gfa-535 Ii Stereo Power Amplifier High Current Vintage Audio Equipment $200.00 New ListingAdcom Gfa-5500 (200W/Ch) - Power AmpNew ListingAdcom Gfa-5500 (200W/Ch) - Power Amp $474.99
Adcom Gfa-5400 Stereo Power AmplifierAdcom Gfa-5400 Stereo Power Amplifier $192.50 New! 2025 Adcom Gfa-555Se Audiophile Edition Stereo Amplifier $1699New! 2025 Adcom Gfa-555Se Audiophile Edition Stereo Amplifier $1699 $1,699.00
Adcom Gfa-555 Ii + Gfa 555 Power Amp + Adcom Gfp 555 PreamplifierAdcom Gfa-555 Ii + Gfa 555 Power Amp + Adcom Gfp 555 Preamplifier $600.00 Adcom Gfa535 power amplifier excellent working conditionAdcom Gfa535 power amplifier excellent working condition $125.00
Adcom Gfa 5400 2 Channel Stereo Power Amplifier Outstanding!Adcom Gfa 5400 2 Channel Stereo Power Amplifier Outstanding! $349.95 Adcom Gfa 7807 Power Amplifier BeastAdcom Gfa 7807 Power Amplifier Beast $2,250.00
Adcom Gfa-555ii 2-Channel Stereo Power Amplifier - Serviced - Cleaned - TestedAdcom Gfa-555ii 2-Channel Stereo Power Amplifier - Serviced - Cleaned - Tested $899.95 Adcom Gfa-7500 5 Channel Thx Power AmplifierAdcom Gfa-7500 5 Channel Thx Power Amplifier $375.00
Adcom Gfa-535 stereo amplifier Tested & working!Adcom Gfa-535 stereo amplifier Tested & working! $149.99 Adcom Gfa-5400 High Current Stereo Amplifier-125 Rms X 2 JapanAdcom Gfa-5400 High Current Stereo Amplifier-125 Rms X 2 Japan $349.95
Adcom Gfa-4702 2 Channel Amplifier AmpAdcom Gfa-4702 2 Channel Amplifier Amp $1,499.95 Rack Mount Adcom Gfa-6002 2-Channel Stereo Power AmplifierRack Mount Adcom Gfa-6002 2-Channel Stereo Power Amplifier $249.99
Adcom amplifier Gfa 555Adcom amplifier Gfa 555 $499.00 Adcom Gfa-5300 2 Channel High Current Power AmplifierAdcom Gfa-5300 2 Channel High Current Power Amplifier $250.00
Super Nice Adcom Gfa-545 Ii Stereo Power Amplifier - Cool!Super Nice Adcom Gfa-545 Ii Stereo Power Amplifier - Cool! $299.99 New Adcom 5500 2 Channel Power AmplifierNew Adcom 5500 2 Channel Power Amplifier $999.99
New ListingAdcom Gfa-545 2 Channel Power Amplifier Tested and Working 🔊🔊New ListingAdcom Gfa-545 2 Channel Power Amplifier Tested and Working 🔊🔊 $225.00 Adcom Gfa 5802 amplifier 300Wpc Class A/B Nelson Pass DesignedAdcom Gfa 5802 amplifier 300Wpc Class A/B Nelson Pass Designed $900.00
Adcom Model Gfa 5802 Stereo Power Amplifier Amp 300W Channel W/Box Tested NelsonAdcom Model Gfa 5802 Stereo Power Amplifier Amp 300W Channel W/Box Tested Nelson $1,499.99 Adcom Gfa-5500 2-Channel Power Amplifier 200W Rms Per ChannelAdcom Gfa-5500 2-Channel Power Amplifier 200W Rms Per Channel $499.99
New ListingAdcom Gfa-555ii 2-Channel Stereo Power Amplifier - 200 Wpc - Cleaned - TestedNew ListingAdcom Gfa-555ii 2-Channel Stereo Power Amplifier - 200 Wpc - Cleaned - Tested $999.95 Adcom Gfa-535Ii High Current Power 60W x 2 Channel AmplifierAdcom Gfa-535Ii High Current Power 60W x 2 Channel Amplifier $90.00
Adcom Gfa-5300 - 2 Channel Power Amplifier in Decent Shape w/ Box!Adcom Gfa-5300 - 2 Channel Power Amplifier in Decent Shape w/ Box! $259.95 Adcom Gfa-535 2 Channel Power Amplifier - Nelson Pass Design!Adcom Gfa-535 2 Channel Power Amplifier - Nelson Pass Design! $90.00
Adcom Gfa-545 Ii High Current Stereo Power Amplifier , tested And Works.Adcom Gfa-545 Ii High Current Stereo Power Amplifier , tested And Works. $275.00 🔥【Pro Serviced】Adcom Gfa-535Ii 120W Stereo Power Amp!~Save💥Guaranty🔥【Pro Serviced】Adcom Gfa-535Ii 120W Stereo Power Amp!~Save💥Guaranty $197.95
Adcom Gfa-5300, Stereo/Surround 2 Channel Power Amplifier, Tested & Working.Adcom Gfa-5300, Stereo/Surround 2 Channel Power Amplifier, Tested & Working. $199.99 Adcom Gfa-555 Power Amplifier 200 w/8 (High Current)Adcom Gfa-555 Power Amplifier 200 w/8 (High Current) $900.00
Adcom Gfa-2 Power AmplifierAdcom Gfa-2 Power Amplifier $349.00 Adcom Gfa-1A Power Amplifier- Bench Checked, Cleaned, Lubed, Fully TestedAdcom Gfa-1A Power Amplifier- Bench Checked, Cleaned, Lubed, Fully Tested $289.99
1979 Adcom Gfa-1A 200Wpc Stereo Channel Power Amplifier - Untested, Sold As-Is1979 Adcom Gfa-1A 200Wpc Stereo Channel Power Amplifier - Untested, Sold As-Is $134.96 Adcom Gfa-1A Power Amplifier - 200 wpc 8 ohms / 350 wpc 4 ohmsAdcom Gfa-1A Power Amplifier - 200 wpc 8 ohms / 350 wpc 4 ohms $259.99
Adcom Gfa-5800 2-Channel Stereo Power Amplifier 250 Wpc/ Gtp-500 Combo WorkingAdcom Gfa-5800 2-Channel Stereo Power Amplifier 250 Wpc/ Gtp-500 Combo Working $1,599.99 Adcom Gfa-5300 2 Channel Power AmplifierAdcom Gfa-5300 2 Channel Power Amplifier $230.00
Adcom Gfa-5200 2 Channel Power Amplifier Tested/ WorkingAdcom Gfa-5200 2 Channel Power Amplifier Tested/ Working $175.00 Adcom Gfa-5002 Stereo Power Amplifier • 50Wpc • Exc Cond • Smoke Free HomeAdcom Gfa-5002 Stereo Power Amplifier • 50Wpc • Exc Cond • Smoke Free Home $199.99
Adcom Gfa 5002 Power Amplifier 50Wpc Tested WorkingAdcom Gfa 5002 Power Amplifier 50Wpc Tested Working $124.98
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Prices current as of last update, 07/01/25 12:50am.

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