Vintage 1977 Eminence 12" Alnico Speaker – 8 Ohm – Code 67-7715 (Model 100-0015)

Up for sale is a rare, heavy-duty vintage 12-inch Alnico magnet instrument and utility speaker manufactured by Eminence in mid-April 1977. This is a highly sought-after, massive-format horseshoe / U-yoke Alnico driver built back when American iron was at its absolute peak.

Technical Bench Specs & Verification:

• EIA Factory Source Code: 67-7715 (Eminence, 15th week of 1977)
• Factory Part Number: 100-0015
• Impedance: Measures 6.5 Ohms DC Resistance on the bench meter, confirming a standard Nominal 8-Ohm voice coil setup.
• Magnet Architecture: Giant-format vintage Alnico cylinder slug securely housed inside an incredibly thick-gauge, heavy steel horseshoe yoke channel (Total driver weight is a substantial 8.7 lbs).
• Cone & Condition: Smooth paper cone layout featuring a copper voice coil and a fresh, clean recone with a flexible roll surround. The voice coil moves completely freely with zero rub. Fully tested on the bench and ready to plug and play.

Sonic Profile & Application: This driver is renowned for its rich, warm, and highly dynamic vintage tone. Rated around 30 Watts RMS, its broad 60 Hz to 5 kHz frequency response, smooth paper cone, and massive Alnico structure deliver a highly touch-sensitive midrange and natural, organic compression without any harsh top-end fizz. It is an incredible choice for a low-to-mid-wattage vintage tube guitar amp combo, an authentic vintage organ/utility enclosure restoration, or a premium studio tracking cabinet.