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. Amperex 1 item
  8. Amphenol 2 items
  9. Arrow Hart & Hart 1 item
  10. Astatic 7 items
  11. Belden Wire 1 item
  12. Bose 1 item
  13. Bogen 1 item
  14. Calrad 20 items
  15. Carter-Craft 1 item
  16. Cetec Vega 1 item
  17. Cinch 1 item
  18. Clarostat 1 item
  19. COILCRAFT 1 item
  20. Conneaut Audio Devices 2 items
  21. CRL 1 item
  22. Custom 2 items
  23. CTI 1 item
  24. CTI Audio Inc 2 items
  25. CTI INDUSTRIES 1 item
  26. ECS INC 1 item
  27. Edwards Signaling Products 2 items
  28. EIMAC 1 item
  29. Dreree 1 item
  30. ELECTRO CAP 1 item
  31. FAIRCHILD 1 item
  32. FUJITSU 1 item
  33. Floyd Bell Inc 1 item
  34. GUDEMAN CO. 1 item
  35. International Co. 1 item
  36. International Components Corp 1 item
  37. JAPAN 1 item
  38. KNOBS INC - Berkeley 1 item
  39. JENSEN 1 item
  40. JVC 1 item
  41. KNOWLES ELECTRONICS,LLC 3 items
  42. Line Electric 1 item
  43. LINE ELEC 1 item
  44. Mallory 1 item
  45. Matsushita 2 items
  46. MG 1 item
  47. MG ELECTRONICS 1 item
  48. MICHIGAN MAGNETICS 1 item
  49. MCM ELX 1 item
  50. Mallory/Electrosonic 2 items
  51. Motorola 2 items
  52. Morse 1 item
  53. MILITARY 1 item
  54. Texas Instruments 1 item
  55. Murata Erie 2 items
  56. MSP 1 item
  57. Mynthal 1 item
  58. NOBLE 1 item
  59. NTE Electronics Inc. 3 items
  60. Philips 2 items
  61. Nortronics 1 item
  62. Philco 2 items
  63. Pfantone 13 items
  64. Panasonic 1 item
  65. Quorum 1 item
  66. RADIX GROUP INT'L 1 item
  67. PROJECTS UNLIMITED 9 items
  68. Primo 1 item
  69. RCA 2 items
  70. Samsung 1 item
  71. S 2 items
  72. ROHM 2 items
  73. Rockwell 1 item
  74. Rogan Brothers 2 items
  75. Russound 1 item
  76. Sanyo 2 items
  77. Shure 1 item
  78. Schadow 1 item
  79. Selenium Brazil 1 item
  80. SEACOR 1 item
  81. Signal Division 1 item
  82. Sprague 2 items
  83. Sonetronics 1 item
  84. Sonalert 1 item
  85. STACKPOLE 1 item
  86. Star 2 items
  87. STK Electronics Inc 1 item
  88. Toshiba 3 items
  89. THOMAS 1 item
  90. TOA 5 items
  91. TRANSFORMER TECH 1 item
  92. Western Electric 2 items
  93. Westinghouse 1 item
  94. Woods 1 item
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Items 121-144 of 241

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  1. Unidentified MFG - STK2125 - 16-PWR SIP PWR AMPLI.
    Unidentified MFG - STK2125 - 16-PWR SIP PWR AMPLI.
    Special Price $7.18 Regular Price $9.57
    16-PWR SIP PWR AMPLI.Listed as Generic Manuf, possibly a Sanyo product. Learn More
  2. Sanyo - STK024 - IC, audio. AF Power amplifier 20W  to 30W.
    Sanyo - STK024 - IC, audio. AF Power amplifier 20W to 30W.
    Special Price $9.98 Regular Price $12.50
    IC, audio. AF Power amplifier 20 watt to 30 watt minimum. Case: 10 Pin power Sip, thick film hybrid. New. Listed as Generic Manufacture possibly a Sanyo product. Learn More
  3. Speco - CBS240 - MS-177 - Full Range Marine Speaker. 8 Ohm 5 Watt, Enclosed.
    Speco - CBS240 - MS-177 - Full Range Marine Speaker. 8 Ohm 5 Watt, Enclosed.
    Special Price $14.98 Regular Price $24.50
    READY TO SHIP - ONLY 37 LEFT IN STOCK!
    Speco - CBS240 - MS-177 - Full Range Marine Speaker. 8 Ohm 5 Watt, Enclosed. MS-177 - Full Range Speaker, Enclosed. Impedance: 8 Ohm Max Power: 7 Watts, 4 Watts RMS Sensitivity: (1W/1M): 88dB Max. SPL (Pmax/1m): 106 dB Magnet: 3 Oz Ferrite Frequency Response: 180 Hz- 6.6 KHz Dispersion @ 1000 Hz: 90 Degrees Conical Material: ABS Body, Bracket Metal Color: Black Speaker: 4” polypropylene Enclosed, with an attached 18' cord to a 1/8" (3.5mm) Male Mono Mini Jack Plug. Weatherproof professional marine communications extension speaker Surface Mounting with Adjustable Tilt Bracket. NVAA Compliant Alternate: 097-0626-002 Dimensions: 4-1/3" sq x 3" deep. New Old Stock Made in Taiwan Learn More
  4. Unidentified MFG - 8-668 - ELECTRET CONDENSER MICROPHONE FREQ: 80-15,000 HZ,
    Unidentified MFG - 8-668 - ELECTRET CONDENSER MICROPHONE FREQ: 80-15,000 HZ,
    $4.50
    ELECTRET CONDENSER MICROPHONE FREQ: 80-15,000 HZ, SHOCK MT RUBBER W/HOLES, FOR CAMCORDERS, ETC. Learn More
  5. CTI audio / Astatic  - 46101-0000 - Microphone Element.
    CTI audio / Astatic - 46101-0000 - Microphone Element.
    Special Price $6.98 Regular Price $8.50

    CTI Audio / Astatic - 46101-0000 Microphone Element.

    Approx Size: 1.148" OD x 2.431" H.

    Made for CTI Audio Inc (Now Astatic).

    Specifications not available.

    Learn More
  6. Unidentified MFG - 42391-0000 - Audio equipment. Microphone windscreen.
    Unidentified MFG - 42391-0000 - Audio equipment. Microphone windscreen.
    $2.99
    Audio equipment. Microphone windscreen, black foam. Dimensions: 2-1/8" high, with an opening of 1" wide and an inside depth 1-1/2". Learn More
  7. Astatic/CTI Audio - 42327-0000 - Microphone Element, Insert, Felt Face 0.7"
    Astatic/CTI Audio - 42327-0000 - Microphone Element, Insert, Felt Face 0.7"
    Special Price $7.98 Regular Price $9.50 As low as $6.98

    Astatic/CTI Audio - 42327-0000 Microphone Element, Insert.

    Felt Face 0.7" (17.7mm) Dia x 31.2mm face

    TO contacts.

    Manuf for CTI Audio Inc.

    No other info avail.

    Learn More
  8. Unidentified MFG - 42249 - Audio, Microphone Transformer.
    Unidentified MFG - 42249 - Audio, Microphone Transformer.
    $1.00
    IN STOCK - MORE THAN 100 READY TO SHIP!

    Audio, Microphone transformer.

    3 wire.

    Dimensions: 0.50" wide x 0.35" high x 0.771" deep.

    Learn More
  9. Astatic - 4221700372 - Audio. Microphone Grille/Windscreen.
    Astatic - 4221700372 - Audio. Microphone Grille/Windscreen.
    Special Price $7.98 Regular Price $14.95 As low as $6.98
    Astatic - 4221700372 - Audio. Microphone Grille/Windscreen. If you’ve ever spoken into a microphone before, you probably know to speak into the metal grille for the best results. Chanced are you’ve spoken into a handheld microphone with a spherical grille. Microphone grilles come in many shapes and sizes and have many purposes for microphone performance! So what is a microphone grille? A microphone grille (or “grill”) is the protective mesh-like layer around a microphone’s capsule. Grilles provide varying degrees of protection from physical trauma, plosive gusts of air, and moisture while still allowing sound to enter the mic capsule effectively. The windscreen attenuates wind noise and environment noise and provides ample protection. Material: Metal (Steel), Heavy Screen. Overall Dimensions: 1.714" (43.5mm) Wide x 1.648" (41.8mm) High. Threaded ID 1.28" (32.7mm x 5/16"). Overall Depth Dimension: 1.5" Deep. Color: Black Made in USA Note: From Astatic Manufacturing Facility in Conneaut Ohio prior to it’s closing. Learn More
  10. Unidentified MFG - 5-091 - Connector, Audio. Monaural Cable , 18" long, 1/8" (3.5 mm) Male to to !/8 Male plug 3.5 mm.
    Unidentified MFG - 5-091 - Connector, Audio. Monaural Cable , 18" long, 1/8" (3.5 mm) Male to to !/8 Male plug 3.5 mm.
    Special Price $1.98 Regular Price $2.50
    IN STOCK - MORE THAN 100 READY TO SHIP!

    Universal Monaural Cable

    Male 1/8" (3.5mm) to Male 1/8" (3.5 mm) Plug.

    Cable Length 18 inches.

    Learn More
  11. Unidentified MFG - 6-255 - Ultrasonic / Audio Transmitter & Receiver Probe
    Unidentified MFG - 6-255 - Ultrasonic / Audio Transmitter & Receiver Probe
    Special Price $18.98 Regular Price $42.95

    Commercial Ultrasonic / Audio Transmitter & Receiver Probe

    Transducer Receiver consist of a piezoelectric ceramic disc mounted with-in a probe.  A conical metal resonator bonded at the center of disc acting as a rigid piston. This special construction provides high sensitivity, wider bandwidth and excellent durability in wide temperature and humidity ranges and high stability in electrical and mechanical characteristics. Due to its free vibration character the open type transducers are very suitable for continual wave driving, such as Doppler motion detector.

    High Quality Distance Ultrasonic Sensor Head

    Marked in Red: "2-5-10cm. 3-8 Vol. 1-2 Inch & 2 - 12 Feet.

    Has two DIN Male connectors, a 5-pin and a 3-pin plug attached to the special microphone with a 5 foot long flat cable with widely separated conductors.

    Specific Application and Specifications Unknown - Great for Hobbyist/Experimenters/Inventors 

    Typical Ultrasonic Probe Applications: Measurement, Motion, Sensing & Instrumentation, Automation & Process Control, Robotics, Security, Power Management, Leak Detection. and Inspection In Industrial, Aerospace, Medical, and Manufacturing.

    Vintage - New Old Stock

    Learn More
  12. Toshiba - TA7060P - for FM IF Amplifier New 5-sip.
    Toshiba - TA7060P - for FM IF Amplifier New 5-sip.
    Special Price $8.98 Regular Price $12.00 As low as $7.98

    Toshiba - TA7060P for FM IF Amplifier

    Genuine Toshiba - New Old Stock - Rare 

    New 5-SIP.

    Alternate: ECG1104

    Learn More
  13. TOA - X-21S - Aux amplifier. Power: 24VDC 20mA.
    TOA - X-21S - Aux amplifier. Power: 24VDC 20mA.
    $44.99
    Aux amplifier. Power: 24VDC 20mA. Input: 220K Ohm. Gain 0~28dB. Att: 0~60dB. Model: X-21. Learn More
  14. TOA - X-01R - Aux amplifier. Power: 24VDC 4mA.
    TOA - X-01R - Aux amplifier. Power: 24VDC 4mA.
    $44.99
    Aux amplifier. Power: 24VDC 4mA. Input: 200 Ohm. Gain 0~28dB. Model: X-01. Learn More
  15. TOA - U-01S - Aux amplifier. Power: 24VDC 4mA.
    TOA - U-01S - Aux amplifier. Power: 24VDC 4mA.
    $44.99
    Aux amplifier. Power: 24VDC 4mA. Input: 220K Ohm. Gain 0~30dB. Model: U-01. Learn More
  16. TOA - H-01S - Mic amplifier. Power: 24VDC 8mA.
    TOA - H-01S - Mic amplifier. Power: 24VDC 8mA.
    $44.99
    Mic amplifier. Power: 24VDC 8mA. Input: 200 Ohm. Gain 52~32dB. Model: H-01. Note: Use only with TOA 900 series amplifiers. Learn More
  17. STK Electronics Inc - STK4161II - STEREO AMP
    STK Electronics Inc - STK4161II - STEREO AMP
    Special Price $9.97 Regular Price $13.00
  18. SONETRONICS - M80C/U - Microphone, dynamic. 24VDC 150 Ohm. New.
    SONETRONICS - M80C/U - Microphone, dynamic. 24VDC 150 Ohm. New.
    $39.00
    Microphone, dynamic. Military. 24VDC 150 Ohm 300-3500Hz, 10 Dynes per square cm. With coiled stretch cord and 5 Pin circular connector. Used with Military radios and pa systems. A microphone which depends for its operation upon the generation of an electromotive force by the motion of a moving coil within a magnetic field. Water resistant. Note: Military NSN 5965-00-179-7762. Learn More
  19. SONALERT - SC24 - Audio alarms and buzzers. 20-30VDC.
    SONALERT - SC24 - Audio alarms and buzzers. 20-30VDC.
    $9.99
    Audio alarms and buzzers. 20-30VDC.Dimensions: 1.465" D round x 0.635" above board. Mount: PCB. More info: http://www.mallory-sonalert.com/specifications/SC24.PDF Learn More
  20. ITT Schadow - 3-119 - Switchbank 15 Button / Position 4PDT Pushbutton Selector Switchbank.
    ITT Schadow - 3-119 - Switchbank 15 Button / Position 4PDT Pushbutton Selector Switchbank.
    Special Price $48.98 Regular Price $64.98
    READY TO SHIP - ONLY 31 LEFT IN STOCK!

    ITT Schadow - 3-119 - Switch, 15 Button Pushbutton Selector Switchbank.

    Each Spring Loaded Switch is 4PDT

    Switchbank 15 Position 4PDT Interlocking, Cancelling.

    Ganged Switches with Only One Switch is "On" At a time.

    Dimensions: 12.25" Length X 2.25" Depth X 0.785" Height.

    Note: Complete with Push Black Knobs.

    New Old Stock

    Learn More
  21. SANYO - LC7537N - IC, Electronic Volume Control, 42 Pin DIP.
    SANYO - LC7537N - IC, Electronic Volume Control, 42 Pin DIP.
    Special Price $6.98 Regular Price $8.50 As low as $4.98
    IN STOCK - MORE THAN 100 READY TO SHIP!

    SANYO - LC7537N IC. Electronic volume control system for audio equipment.

    The LC7537N is an electronic control LSI capable of electronically controlling the volume, balance, loudness, fader, bass, and treble functions individually with fewer externally connected component parts.

    Case: 42 DIP, Bulk packaged

    Genuine Vintage Sanyo New Old Stock

    Alternate: EN2169C CMOS LSI LC7537, 7537AN, 7537NE 

    Additional Information: https://dtsheet.com/doc/309368/sanyo-lc7537n

    Learn More
  22. SANYO - STK2135 - IC, audio. Stereo power amplifier.
    SANYO - STK2135 - IC, audio. Stereo power amplifier.
    Special Price $18.98 Regular Price $25.00

    SANYO - STK2135 - IC, Audio.

    Stereo Power Amplifier.

    2 Channel darlington power pack with emitter resistance.

    Package: 16 Power SIP.

    New.

    Learn More
  23. Rockwell - TEA2025B - IC, audio. Stereo audio amplifier. Used.
    Rockwell - TEA2025B - IC, audio. Stereo audio amplifier. Used.
    Special Price $19.95 Regular Price $25.00
    IC, audio. Stereo audio amplifier. Package: 16 Dip. Bulk packaged. Note: Used/Removed from equipment. Learn More
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