SB Acoustics SB12PFCR25-4-COAX 4" Coaxial Speaker

The SB Acoustics SB12PFCR-4-COAX is a 2 way coaxial loudspeaker drive unit featuring a 4" paper composite cone midwoofer with a 1" centre mounted soft dome tweeter. You will need to design a suitable crossover for this item - the drive elements are well behaved so modelling is not difficult.

The tweeter is available as a spare part:  SB14ST-C000-4 , it can be adapted to repair various other coaxial speakers that feature a 1" pole piece.

Key Features:

• Proprietary cone material with natural fibers made in-house.
  
• Soft low damping rubber surround for improved transient response.
  
• Compact large surround dome tweeter.
  
• Non-resonant long life lead wires
  
• Optimized motor system
• Vented reinforced polymer chassis

Basic parameters (woofer):

Here's the full datasheet: