Audio

Audio Electronic Parts

At Electronic Surplus, we distribute the best audio surplus products on the market. From speakers and cables to alarms and buzzers, our selection of audio electronic parts is almost endless—if you're looking to buy overstock electronics, you’ll be able to find exactly what you need. With equipment from trusted manufacturers like Bose and Hitachi, you can have confidence in the quality of our inventory.  

Some of the audio electronic parts that we carry are brand-new, while others are slightly used. Upon arrival, all of our used audio surplus products are carefully inspected to ensure that they’re still working properly. You can also request an audio device if we don’t currently have it in stock.  

Browse our selection below.  

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  1. Unmarked 58 items
  2. Hitachi 2 items
  3. ACME 2 items
  4. Aerovox 1 item
  5. Alcoknob 2 items
  6. Aiphone Co Ltd 1 item
  7. Amphenol 2 items
  8. Astatic 12 items
  9. Bose 2 items
  10. Bogen 2 items
  11. Calrad 23 items
  12. Cetec Vega 1 item
  13. COILCRAFT 1 item
  14. Conneaut Audio Devices 2 items
  15. CRL 1 item
  16. Custom 2 items
  17. CTI 1 item
  18. CTI Audio Inc 2 items
  19. CTI INDUSTRIES 1 item
  20. ECS INC 1 item
  21. Edwards Signaling Products 2 items
  22. Dreree 1 item
  23. FAIRCHILD 1 item
  24. FUJITSU 1 item
  25. FORD 1 item
  26. Fourjay Ind 1 item
  27. Floyd Bell Inc 1 item
  28. International Co. 1 item
  29. International Components Corp 1 item
  30. JAPAN 1 item
  31. JVC 1 item
  32. KNOWLES ELECTRONICS,LLC 3 items
  33. Line Electric 2 items
  34. Koss 1 item
  35. LINE ELEC 1 item
  36. Mallory 1 item
  37. Matsushita 2 items
  38. MG 1 item
  39. MG ELECTRONICS 2 items
  40. MICHIGAN MAGNETICS 1 item
  41. MCM ELX 1 item
  42. Mallory/Electrosonic 2 items
  43. Motorola 1 item
  44. Morse 1 item
  45. MILITARY 1 item
  46. Texas Instruments 1 item
  47. Murata Erie 2 items
  48. MSP 1 item
  49. Mynthal 1 item
  50. NTE Electronics Inc. 10 items
  51. Philips 2 items
  52. Nortronics 1 item
  53. Philco 3 items
  54. Pfantone 13 items
  55. Panasonic 2 items
  56. Quorum 1 item
  57. RADIX GROUP INT'L 1 item
  58. QUAM 1 item
  59. PROJECTS UNLIMITED 11 items
  60. Primo 1 item
  61. RCA 2 items
  62. Samsung 1 item
  63. S 2 items
  64. ROHM 2 items
  65. Rockwell 1 item
  66. Rogan Brothers 3 items
  67. Russound 1 item
  68. Sanyo 2 items
  69. Shure 1 item
  70. Selenium Brazil 1 item
  71. Signal Division 1 item
  72. Sony 1 item
  73. Sonetronics 2 items
  74. Sonalert 2 items
  75. STACKPOLE 1 item
  76. Switchcraft 3 items
  77. Star 3 items
  78. STK Electronics Inc 1 item
  79. Toshiba 3 items
  80. THOMAS 1 item
  81. TOA 7 items
  82. TRANSFORMER TECH 1 item
  83. UNTEX 1 item
  84. Vishay/Sprague 1 item
  85. Western Electric 3 items
  86. Westinghouse 1 item
  87. X-Tealth 1 item
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Items 1-24 of 260

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  1. PROJECTS UNLIMITED - AT-121-LW45 - Audio, PZT. Piezo tranducers. Package of 50.
    $8.99
    Audio, PZT. Piezo tranducers, 5kHz, 3-28Vp-p 8mA @ 12VDC 85dBA @ 12vp-p. No internal electronics - schematic for driving circuit available. Case: Enclosed 24mm D, 34mm with feet. (3) 45mm-wire leads. Package of 50. Learn More
  2. ALCOKNOB - KNP-900B 1/8 - Equipment, knob. For 1/8" shaft, Stereos, Amplifiers, Instrumentation.
    Special Price $5.98 Regular Price $8.00

    ALCO KNOB - KNP-900B  Series KPN Knob.

    Status: Discontinued

    Fits 1/8" shaft, with one set screw.

    Heavy, Silver. - Stright Knurled

    Matrial: Black Anodized Aluminum  with Vertical Pointer.

    Dimensions: 0.931 OD x 0.54" high. (33.6 X 13.7 mm)

    Applications: Stereos, Amplifiers, Instrumentation. Vintage - Newer Used - Genuine Alco - New Old Stock

     

    Learn More
  3. ACME - 6-349 - Hardware, Knob. 1/4" Flattened Shaft. Stereo , Control, Volume, HI-FI, Amplifier. Package of 4
    Special Price $5.98 Regular Price $8.50

    ACME Hardware, knob.

    For 1/4" flattened shaft.

    Black Band 0.74" around it for gripping easily.

    Material: Attractive Chromed Aluminum.

    Dimensions: 0.62" D x 0.90" high.

    Color: Silver.

    Note: The orientation of the indicator line is straight up from the center of the 1/4" (D) circle.

    Upgrade your Old System with High Quality New Old Stock Knobs.

    Package of 4

    Learn More
  4. iSPY007 - SPY EAR - Ear Secret Sound Amplifier Device.
    Special Price $3.98 Regular Price $6.99
    NOT IN STOCK - CALL FOR PRICE AND AVAILABILITY

    iSPY007 - SPY EAR - Ear Secret Sound Amplifier Device.

    Almost Sold Out- "The Original Super Ear Spy Lisening Device"

    What is this amazing device? This great little gadget is similar to the "disposable hearing aid" you've may have seen advertised on television. It is very small and inconspicuous, yet it can amplify sounds up to 40 or more decibels (that means you will be able to hear some things over 1000 times better!). It is a fun toy for kids, and a useful tool for adults!Just plug in the earphones and turn on the device, adjust the volume to your comfort level, and you are ready to go! You can wear it at your side and amplify all sounds around you, or you can aim the microphone at a source to amplify specific sounds! Batteries not included (Removed).

    Description Item # SPM8757405026 Model # SPYEAR

    "This device is a powerful secret sound amplifie with built-in high sensitive microphone.

    "With this device :
    You can listen clearly to people talking secretly.
    You can listen to the far away sound of the animals while hunting.
    You can spy on people in another room by listening to their conversation.

     

    Learn More
  5. Unidentified MFG - VSQ0055 - VFH Matching Box, Coaxial Transformer, Input 75 Ohm to 300 Ohm Output.
    Special Price $3.98 Regular Price $5.00

    VSQ0055 - VFH Matching Box, Coaxial Transformer

    Transformer, coaxial.

    Input 75 Ohm to output 300 Ohm. 

    Made in Japan

    Quality Constructed Vintage - New Old Stock

    Learn More
  6. Unidentified MFG - BE-010 - Microphone Windscreens 1-5/8"H x 7/16"ID
    $2.99
    Microphone Windscreens 1-5/8" tall with a 7/16" dia opening and an inside depth 1-1/3" (available in black or brown) Learn More
  7. Unidentified MFG - 7-108 - RCA male straight to RCA male, right angle. 8".
    $0.75
    Audio, RF. Cable: RCA male straight to RCA male, right angle. Length: 8". Learn More
  8. Unidentified MFG - F20DP60-55F-D - Speaker, 8 Ohm light weight. Package of 2.
    Special Price $16.98 Regular Price $28.95

    F20DP60-55F-D Speaker.

    8 Ohm.

    Light weight.

    Depth: 2-1/4" maximum (2" max behind panel).

    Some may have a 7 foot, 2 conductor cable with a male RCA plug on one end.

    Speaker dimensions: 7-1/8" D, overall with frame is 8".

    Cross: 1713-3010.

    Note: Package of 2.

    Learn More
  9. PRIMO - EM-47A - Audio, microphone. Electric Condenser Microphone Cartridge
    Special Price $24.98 Regular Price $36.50

    PRIMO - EM-47A Audio, Microphone.

    From live concert sound to recording a movie, pro-audio microphones are critical to the clarity of the sound. Primo's products are use inside many major brands from vocal mics to shotgun camera mics, our quality is perfect for professional and amateurs alike.

    Electric Condenser Microphone Cartridge.

    Omni-directional.

    Highest quality, very high output into 200Meg Ohm to 500Meg Ohm, using FET AMP with source follower.

    Has no internal preamps.

    Can withstand very high S.P.L. (sound pressure level over 90db?).

    Dimensions: 0.828" (21mm) D x 10.5mm high.

    Threaded.

    Learn More
  10. QUORUM - PD-300 PAAL Sport - Personal Alarm LOUD!
    Special Price $9.98 Regular Price $14.95 As low as $8.98

    QUORUM - PD-300 PAAL Sport - Personal Alarm Security, personal.

    PAAL Sport 107db personal alarm with door clip and pull pin.

    The Sports PAAL is a high quality weatherproof (Waterproof) personal attack alarm, designed to withstand outdoor activities, repels moisture and offers the owner a true sense of protection.

    Immediately activated by pulling the special pin/cord or by the included door / window N.O. switch opening up. Deactivate it by replacing the special pin to it's original position.

    Battery 9V required, not included.

    Approx: 2-3/4" x 2" x 1". Color: yellow.

    Learn More
  11. PANASONIC - WM-034CY - Audio, microphone cartridge. Electret.
    Special Price $2.98 Regular Price $4.00 As low as $1.98

    WM-034CY Audio, microphone cartridge.

    Part Status : Discontinued

    Electret Condenser, Omnidirectional 42db +/-3db.

    Frequency range: 20Hz to 16kHz.

    Impedance: 2.2K Ohm.

    Sensitivity: 20Hz ~ 16kHz.

    Signal Noise Ratial: 60 dB

    Voltage: 4.5VDC, Voltage Range: 4.5 to 10V  

    Current: 800uA.

    Output type: Analog.

    Dimensions: Circular 9.7mm Diameter x 6.7mm thick. (0.382" X 0.264")

    Termination: Solder Pads.

    Made in Japan

    Learn More
  12. Line Electric - MD-120VAC-5VA - Electromechanical 120VAC, 5VA.
    Special Price $2.98 Regular Price $4.00

    Line Electric - MD-120VAC-5VA Audio, alarms and buzzers.

    Electromechanical buzzer 120VAC, 5VA.

    Shock hazard.

    Dimensions: 0.9" D x 1.7" long x 1".

    Mount: open frame.

    Applications: toy train gate warning.

    Learn More
  13. ECS INC - ZTA-3.58MG - Ceramic resonator 3.58MHz. Package of 10.
    $3.00
    Filter/resonator. Ceramic resonator 3.58MHz, 30 Ohm. Tolerance: 0.5%. Dimensions: 10mm wide x 5mm deep x 7.5mm high. Package: 2 Pin radial leads. Lead spacing: 5mm. Note: Extended temperature range. Package of 10. From: 500/manuf bag. More info: http://www.ecsxtal.com/store/pdf/ZTAR.pdf Learn More
  14. Edwards Signaling Products - CS1088 - 876-N5 - Alarms. Security Horns, 103dB loud, 120VAC.
    Special Price $74.99 Regular Price $120.95

    Edwards Signaling Products - CS1088 - 876-N5 - Audible Alarm.

    Security horns, 103dB loud,

    120VAC 0.13A 14VA 150-ohm coil.

    Case: 4.5" square.

    Enclosures sold separately.

    Weight: 1.4 lbs.

    UPC 093871220332

    Learn More
  15. CUSTOM - 8-366 - Connector. RCA Male to RCA Male. Package of 3.
    Special Price $2.98 Regular Price $4.50

    Custom Connector. RCA Phono Male to RCA Phono Male.

    One straight connector and one Right angle on a white shielded teflon cable.

    Length: 12".

    Package of 3.

    Learn More
  16. ASTATIC - T2M-914 - Replacement Omnidirectional Audio, Microphone / Speaker, Electret Cartridge
    Special Price $14.98 Regular Price $24.50

    ASTATIC - T2M-914 Replacement Omnidirectional Audio, Microphone /Speaker.

    Speaker / Microphone matches virtually any transmitter.

    Micro switch with positive snap action.

    Rotable spring clip on back.

    Power Requirements: 3 to 12 VDC.  

    Quality Electret Cartridge. 

    Lightweight Durable Noryl Housing.

    Dimensions: Approximately 2" wide x 3" high x 1.3" D.

    Complete with 6 wire Neoprene coil cord, extends to 5-1/2 feet. 

    Includes hook up instructions. 

    Electret microphones are a type of electrostatic capacitor-based microphone which eliminates the need for a polarizing power supply by using a permanently charged material.

    Proudly Made in USA

     

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  17. Unbranded - Vintage RCA Audio Panel Mount Strip 2 Way Female Audio Coaxial Connector Socket
    Special Price $0.98 Regular Price $2.00 As low as $0.49

    Vintage RCA Panel Mount 2 Way Female Audio Coaxial Connector Socket TV Stereo

    Horizontal Panel Mount 2 Way RCA Female Jack Connector Sockets for Various Electronic Connections.

    Panel Mount used in various electric appliances, such as TV, Monitor, DVD, computer, speaker, etc.

    Phenolic Chassis Mount Strip W/Solder Terminal and ceramic insulator

    Overall Length:  1.50" (38.0 mm)

    Overall Depth:  .845" (21.5 mm)

    Mounted Height: 1.0" (25.5 mm)

    Vintage New Old Stock

    Note: Ceramic insulator can be removed to repair used equipment.

     

     

     

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  18. Unidentified MFG - FV272/1740 - Audio, microphones. Element only, Miniature.
    $29.98

    FV272/1740 - Audio, Microphone Element.

    Element only, miniature.

    Dimensions: Approximately .764"X .50" X .36" (19.5 X 12.7 X 9.0 mm)

    Strong on higher frequencies.

    Researching this element to confirm if it is the Heil HC-5 that is in high in demand by Ham Radio Enthusiasts

    Made in Taiwan

    Learn More
  19. Unidentified MFG - SPK-055 - Speakers. 8 Ohm. Size: 4-1/2" square.
    $2.95

    Speakers. 8 Ohm. Size: 4-1/2" square, 3-1/2" mounts. Cross: 95140679.

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  20. Unidentified MFG - 7-068 - Cable, audio. RCA male to male. Package of 10.
    $6.00
    Cable, audio. RCA male to male. Shielded cable. Length: 13". Color. black. Package of 10. Learn More
  21. Unidentified MFG - DM60 - Audio, Microphone Cartridge Element. 400 Ohm.
    Special Price $6.98 Regular Price $8.50

    DM60 Audio. Microphone Cartridge.

    400 Ohm coil.

    Material: Nylon case.

    Dimensions: 0.985" OD x 0.8".

    Color: Beige.

    Vintage New Old Stock

    Learn More
  22. Unidentified MFG - 8-546 - Speakers. 4 Ohm, 0.1 watt mylar cone.
    $1.95
    Speakers. 4 Ohm, 0.1 watt mylar cone, with a 16 foot power cord, 2 conductor 22AWG and a 1/8" audio plug. size: Overall 1-1/8" D round x 9/16" deep. Learn More
  23. Unidentified MFG - 05114 - Audio, microphone. Elements.
    $5.95

    Audio, microphone. Elements. Manufactured for CTI Audio Inc. Approximate dimensions: 0.553" OD x 0.838" high. No other information available.

    Learn More
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