HERTZ ST 25

Extremely compact size for explosive performance: ST 25 is the first Hertz car audio compression driver specifically designed for SPL competitions.

The 25 mm ST 25 with CCAR (Copper Clad Aluminium Ribbon) voice coil features an extra-light aluminium membrane with high thermal dissipation.

An extremely powerful neodymium magnet is employed along with a highly efficient compression loading horn, designed for maximum high frequency acoustic pressure.

Data table

Size mm (in)

• 25 (1)

Power Handling - Peak W

• 100

Impedance Ω

• 4

Frequency response Hz

• 3k ÷ 20k

Sensitivity dB SPL

• 107

Voice coil Ø mm (in)

• 25 (1)

Magnet

• Neodymium

Cone/Dome

• Aluminium