The ST 44 car audio compression driver, like the ST 25 and the ST 35, employs a CCAR (Copper Clad Aluminium Ribbon) voice coil featuring an extra-light aluminium membrane with high thermal dissipation as well as an anodized aluminium body, for maximum damping and vibration rejection. It additionally features a 44 mm (1.7 in.) voice coil and a powerful ferrite magnet, creating maximum SPL in extreme installations.
Data table
| Size mm (in.) | 44 (1.7) |
| Power Handling - Peak W | 100 |
| Impedance ? | 4 |
| Frequency response Hz | 2,5k / 20k |
| Sensitivity dB SPL | 109 |
| Voice coil mm (in.) | 44 (1.7) |
| Magnet | High density flux ferrite |
| Cone/Dome | Aluminium |
(ST44)



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