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Oxford 12K5S8, 12 Inch, 1966 Vintage Stock Guitar Speaker in 1960s Blackface Deluxe Reverb & Other Fender Amplifiers

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MPN:
12K5S8
Condition:
Used
Shipping:
$28.00 (Fixed Shipping Cost)
  • Vintage 1966 Oxford 12K5S8 (12K5-8) 12-inch guitar speaker with 465-602 date code and P4561 cone marking. Original Fender stock speaker known for warm, smooth tone and gradual breakup. Perfect replacement or restoration piece for Blackface/Silver face Deluxe Reverb and similar amps. Excellent vintage condition.
  • Vintage 1966 Oxford 12K5S8 (12K5-8) 12-inch guitar speaker with 465-602 date code and P4561 cone marking. Original Fender stock speaker known for warm, smooth tone and gradual breakup. Perfect replacement or restoration piece for Blackface/Silver face Deluxe Reverb and similar amps. Excellent vintage condition.
  • Vintage 1966 Oxford 12K5S8 (12K5-8) 12-inch guitar speaker with 465-602 date code and P4561 cone marking. Original Fender stock speaker known for warm, smooth tone and gradual breakup. Perfect replacement or restoration piece for Blackface/Silver face Deluxe Reverb and similar amps. Excellent vintage condition.
  • Vintage 1966 Oxford 12K5S8 (12K5-8) 12-inch guitar speaker with 465-602 date code and P4561 cone marking. Original Fender stock speaker known for warm, smooth tone and gradual breakup. Perfect replacement or restoration piece for Blackface/Silver face Deluxe Reverb and similar amps. Excellent vintage condition.
$119.99
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Description

Oxford 12K5S8, 12 Inch, 1966 Vintage Stock Guitar Speaker in 1960s Blackface Deluxe Reverb & Other Fender Amplifiers.

 This 1966 Vintage Fender Guitar Amplifier Speaker, has had light duty service as it was used in a PA address type wall mounted speaker. It has been stored in a dry clean environment here for about 20 years. A rare find for restoring you original 1960s period Fender Amplifiers!

Vintage 1966 Oxford 12K5S8 12" Guitar Speaker — Authentic Fender-era Oxford with 465-602 date code and P4561 cone stamp. This 8-ohm speaker offers classic warm cleans and sweet overdrive, exactly as found in original Blackface Deluxe Reverbs, or Tremolux amps  and similar amps. Great working condition — ideal drop-in for restoration or tone upgrade. Tested and ready to play. Ships fast nationwide!"
 
Product Information
 
This is a vintage Oxford 12-inch guitar speaker, commonly used as a stock speaker in 1960s Fender amplifiers (especially Blackface and early Silver face models like the Deluxe Reverb). Oxford speakers were made by Oxford Speaker Company and supplied to Fender.Markings Breakdown:
  • 12K5S8: Oxford model designation (12" size, K5 series, S8 likely indicates 8-ohm impedance variant).
  • 465-602: EIA manufacturer/date code. "465" = Oxford; "602" = manufactured in 1966, week 2.
     
     
  • P4561: Printed on the cone — a common identifier on original Oxford cones used in Fender amps from this era.
     
    • Date Code (602): The 6 indicates the year 1966, and 02 means it was built during the 2nd week of January. [1, 2]
    • Model Number (12K5S8):
      • 12 = 12-inch diameter.
      • K = Power handling capability (typically rated for mid-power applications, around 20 to 30 watts, standard for Fender Deluxe Reverb or Tremolux amps).
      • 5 = Magnet structural variation weight.
      • S = Ceramic magnet construction.
      • 8 = 8-Ohm voice coil impedance. [1, 2]
    •  
These speakers are known for a warm, smooth, mid-focused tone with gradual breakup — often described as sweeter and less aggressive than contemporary Jensens (e.g., similar to a Jensen C12Q in character). They typically handle 20–30W RMS and are prized by vintage Fender enthusiasts for authenticity and musical tone.
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