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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-5500 Power Amplifier - 200 WpcAdcom Gfa-5500 Power Amplifier - 200 Wpc $404.89 Adcom Gfa 5400 Stereo Amplifier Tested Working!Adcom Gfa 5400 Stereo Amplifier Tested Working! $318.75
Adcom Gfa-535Ii High Current Power 60W x 2 Channel AmplifierAdcom Gfa-535Ii High Current Power 60W x 2 Channel Amplifier $95.00 Adcom Gfa-7000 5 Channel AmpAdcom Gfa-7000 5 Channel Amp $349.99
Adcom Gfa 5802 amplifier 300Wpc Class A/B Nelson Pass DesignedAdcom Gfa 5802 amplifier 300Wpc Class A/B Nelson Pass Designed $1,000.00 Adcom Gfa-5500 AmplifierAdcom Gfa-5500 Amplifier $749.99
Adcom Gfa-585se Stereo Power Amplifier - 600W Per Channel (4 Ohms)Adcom Gfa-585se Stereo Power Amplifier - 600W Per Channel (4 Ohms) Adcom Gfa-555 2-Channel Stereo Power Amplifier - 200 Wpc - Cleaned - TestedAdcom Gfa-555 2-Channel Stereo Power Amplifier - 200 Wpc - Cleaned - Tested $929.95
Adcom Gfa-5200 Bench TestedAdcom Gfa-5200 Bench Tested $199.00 Adcom Gfa-535 2 Channel Amplifier High Current Vintage Audio Power TestedAdcom Gfa-535 2 Channel Amplifier High Current Vintage Audio Power Tested $124.00
Adcom Gfa-6002 2-Channel Bridgeable Stereo Amplifier Gfa6002 Power AmpAdcom Gfa-6002 2-Channel Bridgeable Stereo Amplifier Gfa6002 Power Amp $199.00 Adcom Gfa5300 stereo power amplifierAdcom Gfa5300 stereo power amplifier $150.00
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 $299.00 Adcom Gfa 5006 Power Amp 6/5/4/3 Channels 50w-8ohm 75w-4ohm 175w Bridged x3 VgcAdcom Gfa 5006 Power Amp 6/5/4/3 Channels 50w-8ohm 75w-4ohm 175w Bridged x3 Vgc $285.00
Adcom Gfa-545 100 wpc High Current Power AmplifierAdcom Gfa-545 100 wpc High Current Power Amplifier $200.00 Adcom Amp Gfa-5400 Power Stereo Amplifier WorkingAdcom Amp Gfa-5400 Power Stereo Amplifier Working $149.00
Adcom Gfa-5400 & Gtp-400 Power Amplifier & Pre-Amplifier Powers OnAdcom Gfa-5400 & Gtp-400 Power Amplifier & Pre-Amplifier Powers On $150.00 Adcom Gfa-535 Audiophile Stereo 60W + 60W Power AmplifierAdcom Gfa-535 Audiophile Stereo 60W + 60W Power Amplifier $239.00
Early 90's Adcom Gfa-535 Power Amp & Gtp-500 Preamp - Tested and WorkingEarly 90's Adcom Gfa-535 Power Amp & Gtp-500 Preamp - Tested and Working $324.99 Adcom Gfa-555 Stereo Power Amplifier 200 Wpc - Powers OnAdcom Gfa-555 Stereo Power Amplifier 200 Wpc - Powers On $359.99
Adcom Gfa-2535 240/320W 3/4-Ch Power Amp *Inspected & Tested* W/(2) Gfs-3sAdcom Gfa-2535 240/320W 3/4-Ch Power Amp *Inspected & Tested* W/(2) Gfs-3s $280.00 Adcom gfa-545 Power Amp 2 Chanel Black And WhiteAdcom gfa-545 Power Amp 2 Chanel Black And White $169.99
Adcom Gfa 7400 Excellent Condition 5 Channel Amplifier VintageAdcom Gfa 7400 Excellent Condition 5 Channel Amplifier Vintage $499.00 Adcom 5500 2 Channel Power Amplifier,and Comes With Adcom Gcd-700 5-Disc Cd CompAdcom 5500 2 Channel Power Amplifier,and Comes With Adcom Gcd-700 5-Disc Cd Comp $361.75
Adcom Gfa-565 Mono Power Amplifier Tested & WorkingAdcom Gfa-565 Mono Power Amplifier Tested & Working $449.00 Adcom Gfa-535 Stereo Power Amplifier Excellent Made In UsaAdcom Gfa-535 Stereo Power Amplifier Excellent Made In Usa $99.99
Adcom Gfa-5500 (200W/Ch) - Power AmpAdcom Gfa-5500 (200W/Ch) - Power Amp $499.99 Adcom Gfa - 5503 Amplifier in Full Working .Adcom Gfa - 5503 Amplifier in Full Working . $550.00
Adcom Gfa-5300 2 Channel High Current Power AmplifierAdcom Gfa-5300 2 Channel High Current Power Amplifier $250.00 Legendary Adcom Gfa-5500, Stereo Power Amp-Class Ab-Usa-200Wx2-PreOwn-Exc CondLegendary Adcom Gfa-5500, Stereo Power Amp-Class Ab-Usa-200Wx2-PreOwn-Exc Cond $550.77
Adcom Gfa-535 Stereo Power AmplifierAdcom Gfa-535 Stereo Power Amplifier $180.00 Adcom Gfa-5300 2 Channel Power Amplifier ServicedAdcom Gfa-5300 2 Channel Power Amplifier Serviced $195.00
Adcom Gfa 5002 Power Amplifier 50Wpc Tested WorkingAdcom Gfa 5002 Power Amplifier 50Wpc Tested Working $155.98 Adcom Gfa-5400 Power AmplifierAdcom Gfa-5400 Power Amplifier $335.00
Adcom Gfa-7500 5 Channel Thx Power AmplifierAdcom Gfa-7500 5 Channel Thx Power Amplifier $400.00 Adcom Gfa- 575Se Bridgeable High Current Stereo Power Amp Audiophile DreamAdcom Gfa- 575Se Bridgeable High Current Stereo Power Amp Audiophile Dream $2,150.00
New! 2025 Adcom Gfa-555Se Audiophile Edition Stereo Amplifier $1649New! 2025 Adcom Gfa-555Se Audiophile Edition Stereo Amplifier $1649 $1,649.00 💥 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 Model Gfa-555 High Current Power Amplifier, 200-Watts, Works, No ManualNew ListingAdcom Model Gfa-555 High Current Power Amplifier, 200-Watts, Works, No Manual $499.99 Adcom Gfa-545 Ii Power Amplifier 120V 600WAdcom Gfa-545 Ii Power Amplifier 120V 600W $274.99
Adcom Gfa-4702 2 Channel Amplifier AmpAdcom Gfa-4702 2 Channel Amplifier Amp $1,999.95 Adcom Gfa-545 2 Channel Power AmplifierAdcom Gfa-545 2 Channel Power Amplifier $138.00
Rack Mount Adcom Gfa-6002 2-Channel Stereo Power AmplifierRack Mount Adcom Gfa-6002 2-Channel Stereo Power Amplifier $249.99 Adcom Gfa-2 Power Amplifier 200 Watts 50-60HzAdcom Gfa-2 Power Amplifier 200 Watts 50-60Hz $175.00
Us Adcom Gfa-2535 Power AmplifierUs Adcom Gfa-2535 Power Amplifier $714.24 New ListingAdcom Gfa-535 Power Amplifier Excellent Condition Original Box.New ListingAdcom Gfa-535 Power Amplifier Excellent Condition Original Box. $110.00
Adcom Gfa-5300, Stereo/Surround 2 Channel Power Amplifier, Tested & Working.Adcom Gfa-5300, Stereo/Surround 2 Channel Power Amplifier, Tested & Working. $224.99 Adcom Gfa-555 2-Channel Power Amplifier (200wpc)Adcom Gfa-555 2-Channel Power Amplifier (200wpc) $349.00
Adcom Gfa 5503 Power Amplifier 3 Channel Great ConditionAdcom Gfa 5503 Power Amplifier 3 Channel Great Condition $900.00 Vintage Adcom Gfa-535 2-Channel 120-Watt Stereo Power Amplifier Fast ShippingVintage Adcom Gfa-535 2-Channel 120-Watt Stereo Power Amplifier Fast Shipping $129.95
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Prices current as of last update, 05/03/25 9:50am.
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