Pair of genuine Bose full-range drivers, model 181860, removed from a functional system. These are original Bose OEM 4-inch speakers, ideal for repair, restoration, or DIY audio projects.

Specifications:

• Brand: Bose

• Model: 181860

• Type: Full Range Drivers

• Size: 4 inches (approx. 10 cm)

• Impedance (DCR reading): 0.67Ω (approx. 1Ω nominal)

• Condition: Used / Tested / Working

• Cone & surround: Excellent condition, no cracks or tears

• Frame & magnet: Clean, minimal oxidation

• Quantity: 2 speakers (matched pair)

Testing:

Both units were tested with a multimeter and audio signal — consistent readings of 0.67Ω and clear output sound.

Shipping:

US mainland shipping only. Carefully packed for safe delivery.