{"product_id":"hertz-st25kneo-2-1-8-compression-tweeter-kit","title":"Hertz ST25KNEO-2 1.8\" Compression Tweeter Kit","description":"\u003cp\u003eThe Hertz ST25KNEO-2 is a compact 44 mm (1.8-inch) high-efficiency compression tweeter kit designed to add focused high-frequency output to a car audio system. It is intended for systems that need dedicated treble reproduction above the midrange range. With a 4-ohm nominal impedance and 107 dB sensitivity rating, it is suited to high-output speaker installations.\u003c\/p\u003e\u003cp\u003eThis kit is a practical option for enthusiasts building or upgrading an SPL-oriented system with separate midrange drivers. Its aluminium dome and horn-loaded design are engineered to reproduce upper-frequency detail from 3 kHz to 20 kHz. The compact neodymium motor helps keep the assembly lighter and more space-conscious than conventional large-magnet compression tweeters.\u003c\/p\u003e\u003cp\u003eThe ST25KNEO-2 uses a 25 mm CCAR copper-clad aluminium ribbon voice coil and an extra-light aluminium membrane. Hertz also specifies a FEM-optimized phase plug and loading horn, intended to support controlled high-frequency output. Its 100-watt peak power-handling specification applies with a 5 kHz high-pass filter at 12 dB per octave.\u003c\/p\u003e\u003cp\u003eAs the kit version of Hertz's ST 25 Neo platform, the ST25KNEO-2 includes metal mesh grilles and inline crossover filters. These included filters help support high-pass use when integrating the tweeters with compatible midrange speakers. High-current screw terminals provide a secure connection point for speaker wiring.\u003c\/p\u003e\u003cp\u003eThe tweeters fit naturally into multi-driver front-stage, door-panel, custom-pod, and show-style audio upgrades where placement and aiming can be planned carefully. Their waterproofed, anti-UV-treated body is designed for exposure to outdoor conditions without discoloration over time. Confirm mounting clearance, amplifier setup, crossover point, and polarity before installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e44 mm Compression Tweeter:\u003c\/strong\u003e Compact horn-loaded design for dedicated high-frequency reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 W Peak Handling:\u003c\/strong\u003e Rated with a 5 kHz, 12 dB\/octave high-pass filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e107 dB Sensitivity:\u003c\/strong\u003e Supports strong output with modest amplifier power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeodymium Motor:\u003c\/strong\u003e Keeps the tweeter compact and lightweight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminium Dome:\u003c\/strong\u003e Extra-light membrane supports upper-frequency response to 20 kHz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Accessories:\u003c\/strong\u003e Includes inline crossover filters and metal mesh grilles.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe ST25KNEO-2 combines a neodymium N38 H motor, aluminium dome, CCAR voice coil, and FEM-optimized phase plug and loading horn. Hertz specifies body waterproofing and anti-UV treatment for durability in exposed installations. Each tweeter weighs 0.39 kg and uses high-current screw terminals.\u003c\/p\u003e\u003cp\u003eUse these tweeters in a properly filtered multi-speaker system rather than as full-range speakers. Hertz specifies the 100 W peak rating with a 5 kHz high-pass filter at 12 dB per octave, and the included inline crossover filters should be installed according to their supplied instructions. Check the 57 mm overall diameter and 29.7 mm mounting-depth dimension before choosing a mounting location.\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":45631859228742,"sku":"ST25KNEO-2","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/51D_kgHOtKL.jpg?v=1784384135","url":"https:\/\/audiowatt.store\/products\/hertz-st25kneo-2-1-8-compression-tweeter-kit","provider":"Audio Watt Store","version":"1.0","type":"link"}