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Mono

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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Vintage Mono Peri 50 Watt Power Amplifier El37 Tubes For Restoration SingleVintage Mono Peri 50 Watt Power Amplifier El37 Tubes For Restoration Single $700.00 Vintage Heathkit Mono Amplifier Model W4 Am Power Amp Worked A Couple Years AgoVintage Heathkit Mono Amplifier Model W4 Am Power Amp Worked A Couple Years Ago $169.98
Altec A127A Amplifier Rwb Made Under Western ElectricAltec A127A Amplifier Rwb Made Under Western Electric $2,300.00 Manley 175 Mono block Power AmplifierManley 175 Mono block Power Amplifier $4,000.00
Vintage Threshold Sa/12e Statis Pure Class A Mono Block Power Amplifier Amp PairVintage Threshold Sa/12e Statis Pure Class A Mono Block Power Amplifier Amp Pair $8,500.00 Fisher 70Az Vintage Monoblock Mono Audio Amplifier (Sn 56938, sounds good)Fisher 70Az Vintage Monoblock Mono Audio Amplifier (Sn 56938, sounds good) $520.00
Fisher 80Az Mono Tube Amps & 80C Preamp -Serviced & Working But Sold As-is.Fisher 80Az Mono Tube Amps & 80C Preamp -Serviced & Working But Sold As-is. $2,849.89 Craftsmen C550 (550) High-Fidelity Mono Power Amplifier=Nice Original!Craftsmen C550 (550) High-Fidelity Mono Power Amplifier=Nice Original! $599.00
Altec 1568A Vacuum Tube Mono Power Amplifier Used JpAltec 1568A Vacuum Tube Mono Power Amplifier Used Jp $1,399.99 Regency Hf-50 Tubes Mono Power Amp - PairRegency Hf-50 Tubes Mono Power Amp - Pair $2,500.00
Carver 'Black Beauty' 305 Vacuum Tube Mono-Block Power Amplifiers - RareCarver 'Black Beauty' 305 Vacuum Tube Mono-Block Power Amplifiers - Rare $7,500.00 Interelectronics Coronation One Hundred 40 watt Broadcast Mono Tube AmplifierInterelectronics Coronation One Hundred 40 watt Broadcast Mono Tube Amplifier $1,499.99
Vintage Nos Threshold Sa-1 Mono Block Power Amplifier Pair - Ready to UseVintage Nos Threshold Sa-1 Mono Block Power Amplifier Pair - Ready to Use $8,999.00 Bogen 50 s High Fidelity Tube Amplifier from vintage audio collection NiceBogen 50 s High Fidelity Tube Amplifier from vintage audio collection Nice $195.00
Vintage Heathkit W-5M Mono Tube Power Amplifier Amp Peerless El34 WorksVintage Heathkit W-5M Mono Tube Power Amplifier Amp Peerless El34 Works $450.00 Fisher 80Az Mono Amplifiers Restored NiceFisher 80Az Mono Amplifiers Restored Nice $2,995.00
Dynaco Mark-Vi Vacuum Tube Power Amplifier, Mono Pair restored upgradedDynaco Mark-Vi Vacuum Tube Power Amplifier, Mono Pair restored upgraded $6,000.00 Knight 25 Watt Basic Mono Power AmplifierKnight 25 Watt Basic Mono Power Amplifier $369.00
Pair Quad Ii Classic Vacuum Tube Type Power Amplifier Vintage Audio Mono BlocksPair Quad Ii Classic Vacuum Tube Type Power Amplifier Vintage Audio Mono Blocks $2,200.00 Vintage Heathkit Mono Amplifier Model W4 Am Power Amp Works Tung Sol 5881Vintage Heathkit Mono Amplifier Model W4 Am Power Amp Works Tung Sol 5881 $400.00
Waiting Audio 2A3 single ended class-A tube power amplifier (mono-mono)Waiting Audio 2A3 single ended class-A tube power amplifier (mono-mono) $1,480.00 Knight Six Dial Mono Amplifier 1960sKnight Six Dial Mono Amplifier 1960s $169.99
Allen Organ Amplifier Model T-100 Mos-1 mono blockAllen Organ Amplifier Model T-100 Mos-1 mono block $125.00 Vtg Luxman M-02 Duo-Beta/S Power Amplifier 140 Watts Stereo / 300 Watts MonoVtg Luxman M-02 Duo-Beta/S Power Amplifier 140 Watts Stereo / 300 Watts Mono $899.00
Vintage Eico Hf-14 Mono Tube Power Amplifier in Good Working ConditionVintage Eico Hf-14 Mono Tube Power Amplifier in Good Working Condition $349.00 Conrad Johnson Premier Five Mono BlocksConrad Johnson Premier Five Mono Blocks $3,200.00
Vintage Stromberg Carlson Tube Amplifier Amp Mono Model Aph-1030Vintage Stromberg Carlson Tube Amplifier Amp Mono Model Aph-1030 $100.00 2A3 Pp Hk-9 Vacuum Tube Working Mono Power Amplifier Set of 2 Vacuum Tube2A3 Pp Hk-9 Vacuum Tube Working Mono Power Amplifier Set of 2 Vacuum Tube $3,505.50
New ListingLuxman Mb-3045 Vacuum Tube Power Amplifier Pair Set of 2 Used[Very Good]New ListingLuxman Mb-3045 Vacuum Tube Power Amplifier Pair Set of 2 Used[Very Good] $2,992.99 Scott 240 Laboratory Series Mono Block Pair2 Tube Power Amplifiers Just ServicedScott 240 Laboratory Series Mono Block Pair2 Tube Power Amplifiers Just Serviced $2,799.99
Hallicrafters A-84 Mono Power AmplifierHallicrafters A-84 Mono Power Amplifier $429.00 Altec A333A High-Fidelity Mono Power Amplifier=Nice! Please Read!Altec A333A High-Fidelity Mono Power Amplifier=Nice! Please Read! $1,399.00
Rca Mi-9335B Mono Tube Power Amplifier (Worldwide Shipping)Rca Mi-9335B Mono Tube Power Amplifier (Worldwide Shipping) $2,200.00 Stromberg Carlson Ap-80 Mono Block 6550 tubes Power AmplifierStromberg Carlson Ap-80 Mono Block 6550 tubes Power Amplifier $549.95
Exceptional McIntosh Mc50 Solid State Mono block AmplifierExceptional McIntosh Mc50 Solid State Mono block Amplifier $795.00 Western Electric/McIntosh A116 Monoblock Valve Amplifiers - Fully Rebuilt!Western Electric/McIntosh A116 Monoblock Valve Amplifiers - Fully Rebuilt! $3,299.00
Great Sound ! Vintage Kenwood L-07M Mono Block Power Amplifier (Item#2)Great Sound ! Vintage Kenwood L-07M Mono Block Power Amplifier (Item#2) $279.99 Pre 1958 McIntosh Mc60 Mono Vacuum Tube Power Amplifier, Pro Serviced*Read*Pre 1958 McIntosh Mc60 Mono Vacuum Tube Power Amplifier, Pro Serviced*Read* $3,799.99
The Fisher 510-St And 30-A Pair Of Mono El84 Tube Power Amplifiers 1960’sThe Fisher 510-St And 30-A Pair Of Mono El84 Tube Power Amplifiers 1960’s $600.00 Dynaco Mark Iii Mono Block Tube Power Amplifier Pair With Cages!Dynaco Mark Iii Mono Block Tube Power Amplifier Pair With Cages! $1,999.00
Dynaco Mark Vi Professional Power Amplifiers = Factory Wired!Dynaco Mark Vi Professional Power Amplifiers = Factory Wired! $3,999.00 Crown Dc-300A Vintage Monster Amplifier (Circa 1968) Tech Tested & Owned/ManualCrown Dc-300A Vintage Monster Amplifier (Circa 1968) Tech Tested & Owned/Manual $699.99
6С33с tube power amplifier, single ended  mono amplifiers6С33с tube power amplifier, single ended  mono amplifiers $1,855.00 Mcintosh Mc30 Mono Tube Amplifier Restored Early Serial NumberMcintosh Mc30 Mono Tube Amplifier Restored Early Serial Number $2,495.00
Pair of Heathkit W-5M Mono Bloc Power Amplifiers=Peerless Output TransformersPair of Heathkit W-5M Mono Bloc Power Amplifiers=Peerless Output Transformers $1,149.00 Vintage Geloso G-227A El34 Pp tube mono amplifiers 1960sVintage Geloso G-227A El34 Pp tube mono amplifiers 1960s $1,750.00
Rca Mi-12222-B Vintage Mono Tube Amplifier from vintage audio collection NiceRca Mi-12222-B Vintage Mono Tube Amplifier from vintage audio collection Nice $595.00 Trans Electronics Rs-217A Mono Block Tube Power Amplifier Regulated Power SupplyTrans Electronics Rs-217A Mono Block Tube Power Amplifier Regulated Power Supply $449.99
Vintage General Electric Tube Power Amplifier Mono Block A1-300 Parts or RepairVintage General Electric Tube Power Amplifier Mono Block A1-300 Parts or Repair $995.00 McIntosh Mc60 Tube Mono Block Power Amplifier Working Survivor For RestorationMcIntosh Mc60 Tube Mono Block Power Amplifier Working Survivor For Restoration $810.00
Restored Luxman Lux Mb8A, Mb8-A Vacuum Tube Mono Power Amplifier Pair Japan JpRestored Luxman Lux Mb8A, Mb8-A Vacuum Tube Mono Power Amplifier Pair Japan Jp $2,320.63 6L6 Tube Mono amp for modifier fender guitar amp6L6 Tube Mono amp for modifier fender guitar amp $149.00
Dynaco Mark-Vi Vacuum Tube Power Amplifier, Mono PairDynaco Mark-Vi Vacuum Tube Power Amplifier, Mono Pair $3,800.00 George Gott G 30U Biggs of California Mono Tubes Power Amp - PairGeorge Gott G 30U Biggs of California Mono Tubes Power Amp - Pair $1,400.00
McIntosh Mc30 Vacuum Tube Mono Power Amplifier free ship vintage audioMcIntosh Mc30 Vacuum Tube Mono Power Amplifier free ship vintage audio $2,199.45 Pioneer Elite M-90 Stereo Amplifier 200W/Ch Hifi Dual Mono + 30-Day GuaranteePioneer Elite M-90 Stereo Amplifier 200W/Ch Hifi Dual Mono + 30-Day Guarantee $1,820.00
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Prices current as of last update, 06/28/25 10:50pm.

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