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Hertz High Efficiency Compression Driver Tweeter - ST25KNEO

Abt Model: ST25KNEO
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Product Details

Hertz ST25KNEO High Efficiency Compression Driver Tweeter

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.


  • Powerful Neodymium magnet providing high performance with compact size.
  • FEM (Finite Element Method) optimized phase-plug and loading horn.
  • CCAR (Copper Clad Aluminium Ribbon) voice coil for unheard-of thermal and mechanical capability ready for an easy replacement with replacement body kit.
  • Extra-light aluminium membrane to maximize SPL with high current, screw terminals.
  • Body waterproofing and anti-UV treatment to allow safe outdoor use without discoloration over time.
  • “Kit” version with metallic mesh grille and inline crossover filter included.
  • Compact and lightweight, the new spl neo systems are extremely loud and do not fear nature elements for an unlimited fun in every condition!


  • Component: High Efficiency Compression Driver
  • Provided inline crossover: Hi-pass filter @ 9 kHz - 6 dB Oct.
  • Size mm (in.): 44 (1.8)
  • Power Handling - Peak W: 100 Hi-pass filtered @ 5 kHz - 12 dB Oct.
  • Impedance Ω: 4
  • Frequency response Hz: 3k ÷ 20k
  • Sensitivity dB SPL: 107
  • Voice coil Ø mm (in.): 25 (1)
  • Magnet: Neodymium
  • Cone/Dome: Aluminium

Approximate Dimensions:

  • Height: 42.5"
  • Width: 11"
  • Depth: 10"

Approximate Weight:

  • Shipping: 13 lbs

Warranty Information:

  • Manufacturers Warranty(authorized online retailer): One Year Parts & Labor
California customers: Proposition 65 WARNING

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Key Features

Powerful Neodymium Magnet Providing High Performance With Compact Size/ Finite Element Method Optimized Phase-Plug And Loading Horn/ Copper Clad Aluminium Ribbon/ Extra-Light Aluminium Membrane To Maximize SPL/ Black Finish

More reasons to buy the Hertz High Efficiency Compression Driver Tweeter ST25KNEO from Abt Electronics

  • is an authorized dealer.
  • The Hertz High Efficiency Compression Driver Tweeter ST25KNEO is Brand New.
  • Abt ships this product for free!


RMS Power Handling50
Impedance (ohms)4
Size (inches)1.8


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