{"product_id":"hertz-st25aneo-2-1-8-compression-tweeters","title":"Hertz ST25ANEO-2 1.8\" Compression Tweeters","description":"\u003cp\u003eThe Hertz ST25ANEO-2 is a pair of compact 44 mm (1.8-inch) high-efficiency compression tweeters for car-audio systems. It is designed to add focused upper-frequency output where conventional full-range speakers or midranges need dedicated treble support. The ST 25A NEO active-version design supplies the tweeters themselves for use in a properly configured active or filtered system.\u003c\/p\u003e\u003cp\u003eWith a 3 kHz to 20 kHz frequency-response specification and 107 dB SPL sensitivity, these tweeters are intended for systems that prioritize high-frequency presence and output. Their aluminum dome is lightweight for responsive high-frequency reproduction. A 4-ohm nominal impedance supports matching with compatible car-audio amplification and crossover networks.\u003c\/p\u003e\u003cp\u003eThe ST25ANEO-2 uses a 25 mm CCAR copper-clad aluminum ribbon voice coil and a neodymium motor. Hertz specifies N38 H neodymium for the motor assembly, helping keep the driver compact and light. The compression-driver format also incorporates a phase plug and loading horn optimized using FEM design methods.\u003c\/p\u003e\u003cp\u003eHertz rates each tweeter for 100 watts peak when it is high-pass filtered at 5 kHz with a 12 dB-per-octave slope. This filter requirement is important: the tweeters should not be connected directly to a full-range signal. A suitable active crossover, DSP, or passive high-pass network is needed to limit low-frequency energy.\u003c\/p\u003e\u003cp\u003eThe compact housing uses high-current screw terminals for speaker-wire connection and includes body waterproofing with anti-UV treatment. Its published dimensions should be checked against the intended custom panel, pod, or mounting location before installation. These tweeters are a practical match for an SPL-oriented multi-driver build that needs dedicated high-frequency drivers.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e44 mm Compression Driver:\u003c\/strong\u003e Compact high-efficiency tweeter format for dedicated high-frequency output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 W Peak Handling:\u003c\/strong\u003e Rated with a 5 kHz, 12 dB-per-octave high-pass filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e107 dB SPL Sensitivity:\u003c\/strong\u003e Supports strong output with comparatively modest amplifier power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eN38 H Neodymium Motor:\u003c\/strong\u003e Provides a compact magnetic motor assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum Dome:\u003c\/strong\u003e Lightweight diaphragm material for upper-frequency reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCCAR Voice Coil:\u003c\/strong\u003e Copper-clad aluminum ribbon coil supports thermal and mechanical capability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe ST25ANEO-2 combines an aluminum dome, CCAR voice coil, neodymium magnet, and FEM-optimized phase plug\/loading horn. Hertz also specifies body waterproofing and anti-UV treatment, along with high-current screw terminals. Each component weighs 0.39 kg (0.86 lb).\u003c\/p\u003e\u003cp\u003eUse these tweeters as part of a filtered system, with a high-pass point at 5 kHz and a 12 dB-per-octave slope specified for the peak-power rating. Confirm the 57 mm, 43.5 mm, 55.5 mm, and 29.7 mm published dimensional references against the planned installation location. Pair them with compatible 4-ohm amplification, an active crossover or DSP, and suitable midrange drivers for a complete system.\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":45631858999366,"sku":"ST25ANEO-2","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/51C59aw4q2L.jpg?v=1784384079","url":"https:\/\/audiowatt.store\/products\/hertz-st25aneo-2-1-8-compression-tweeters","provider":"Audio Watt Store","version":"1.0","type":"link"}