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Hertz ST-25K-NEO — 1" compression tweeters with crossovers

Hertz

In stock

MSRP: $500.00
$404.99
(You save $95.01)

Highlights

  • Speaker Size 1"
  • Speaker Type Tweeter
  • Sensitivity 12 dB
SKU:
ST-25K-NEO
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Every order includes

  • A vehicle-specific install guide
  • Free lifetime tech support
  • The harness or adapter your vehicle needs, listed in the fit box above
  • 60-day returns

Questions? Talk to a Velocity advisor

Specifications

Specifications

Speaker Size
1"
Speaker Type
Tweeter
Sensitivity
12 dB

About the Hertz ST-25K-NEO — 1" compression tweeters with crossovers

From the manufacturer

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. Features - • 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. Specifications - • 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)

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Reviews

3 Reviews Hide Reviews Show Reviews

  • 5
    Would buy again

    Posted by Anthony H. on 16th Aug 2026

    Picked these for the 2012 Chevrolet Tahoe's front a-pillar spot instead of the tired factory driver. the rated power was plenty on the stock head unit. Fit against the factory opening with no modification. Noticeably clearer than stock, especially in the mids.

  • 4
    Works well

    Posted by Megan W. on 20th May 2026

    Good upgrade for the 2012 Chevrolet Tahoe's front a-pillar location. the rated power matched the factory wiring fine. only ding is the mounting depth ran a little tight against the door hardware, worth checking clearance first. Sound is a clear step up from the factory speaker.

  • 3
    Works, took some patience

    Posted by Susan W. on 26th Nov 2025

    These fit the front a-pillar opening on my 2012 Chevrolet Tahoe as advertised and the spec sheet checks out. Install took longer than the last set I did. Sound is fine, not a dramatic jump from stock at low volume. Works, just budget extra install time.

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Match the numbers to your setup

The specs above are the fastest way to confirm a part is right before checkout — a size or power rating just outside your factory setup usually means an adapter or a different SKU, not a return later. If you are not sure which spec matters for your vehicle, the fit tool at the top of the page narrows the catalog to parts already confirmed for your year, make, and model.