Hertz – ST 25K NEO ST25KNEO



1-3/4 Inch (1.75) Compression Driver
  • Maximum Power – 100W, RMS Wattage – , Impedance – 4 Ohm
  • 1-3/4″ Aluminum Bullet Tweeter
  • Weather Resistant
  • More Features!

10 in stock

SKU: ST 25K NEO Categories: ,


Speaker Features

Hertz ST 25K NEO Compression Driver

Speaker Features

NEO line bullet tweeters are a totally new project, lighter and more compact compared to the previous ST 25 and with superior performance thanks to the use of Neodymium N38 H for the motor units and a FEM (Finite Element Method) optimized driver/horn design. The “Kit” version, ST 25K Neo features metallic mesh grille and inline crossover filter included.

1. Powerful Neodymium magnet providing high performance with compact size.

2. FEM (Finite Element Method) optimized phase-plug and loading horn.

3. CCAR (Copper Clad Aluminium Ribbon) voice coil for unheard-of thermal and mechanical capability ready for an easy replacement with replacement body kit.

4. Extra-light aluminium membrane to maximize SPL with high current, screw terminals.

5. Body waterproofing and anti-UV treatment to allow safe outdoor use without discoloration over time.

6. “Kit” version with metallic mesh grille and inline crossover filter included.

Speaker Specifications


Hertz ST 25K NEO Compression Driver

Speaker Design Tweeter
DC Resistance (Ω) 4 Ohm (Ω)
Peak Power (Watts) 100W
Continuous Power (RMS)
Sensitivity dB 107
Effective Frequency Range 3k-20k
Mounting Hole Diameter (0.00 mm)
Top Mount Depth
Bottom Mount Depth
Grille No

Additional information

Weight 2.23 lbs
Dimensions 7.50 × 3.50 × 4.75 in

Maximum Wattage


Speaker Design