--- product_id: 461804801 title: "ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet" brand: "selenium" price: "€ 175.45" currency: EUR in_stock: true reviews_count: 3 category: "Selenium" url: https://www.desertcart.be/products/461804801-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite-magnet store_origin: BE region: Belgium --- # 40° x 40° precise dispersion 300W max power Aluminum + phenolic build ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet **Brand:** selenium **Price:** € 175.45 **Availability:** ✅ In Stock ## Summary > 🎵 Elevate your sound game with the ST400TRIO — where precision meets power. ## Quick Answers - **What is this?** ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet by selenium - **How much does it cost?** € 175.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/461804801-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite-magnet) ## Best For - selenium enthusiasts ## Why This Product - Trusted selenium brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Sound Coverage:** Bullet-shaped horn delivers focused 40° x 40° dispersion for immersive, room-filling sound. - • **Quick-Coupling Connectors:** Effortless setup with secure, fast-connect terminals designed for seamless integration. - • **Durable, Heat-Optimized Design:** Aluminum base and diffuser ensure superior heat dissipation for reliable, long-lasting performance. - • **Versatile Installation Options:** Use solo in low-power systems or array multiple units for amplified SPL and coverage. - • **Powerful Clarity, Zero Harshness:** Experience crystal-clear highs without fatigue, perfect for professional-grade audio setups. ## Overview The Selenium ST400TRIO is a high-performance 8 Ohm super frequency tweeter engineered for exceptional clarity and natural sound reproduction. Featuring a durable aluminum and phenolic construction, it offers a 40° x 40° dispersion pattern and handles up to 300 Watts of program power. Ideal for professional and vehicle audio systems, it combines advanced heat dissipation, quick-coupling connectors, and a bullet-shaped horn design to deliver immersive, distortion-free highs. ## Description JBL SUPER HIGH FREQUENCY TWEETER Review: Bueno - Bueno Review: JBL worth the money. This is my second JBL selenium - very smooth sound. This is my second JBL selenium super tweeter. I have it hooked up to my home audio center channel. Beware. Thris unit is massive in size and sound. Even at low volume you can hear the difference . Like being in a movie theater without the harshness of other brands. Recommended for professional use. ## Features - Super tweeter for outstanding detail & clarity in high-frequencies without harshness. The St400 TRIO may be used individually in lower power systems or arrayed for increased coverage & SPL in higher power systems. The base & diffuser are constructed of aluminum contributes to better heat dissipation of the coil moves, w/finish machining of diamond (diamond tool) & varnished. - The bullet-shape horn design offers a longer throw 40 Degrees x 40 Degrees dispersion. The phenolic annular diaphragm is long-lasting, cost-effective & more natural-sounding than metallic diaphragms. - The use of high-temperature materials & adhesives improves power handling & produces exceptionally high acoustic output. Together w/magnetic ring of aluminum ensuring a high-definition & efficiency across its fixed playback. Connectors w/quick couplings - * Nominal impedance: 8 ohms * Minimum impedance at 9,400 Hz: 7.8 ohms * Frequency response at -10 dB: 4,000 to 20,000 Hz * 40 x 40 degrees sound dispersion - * Recommended maximum program power while using crossover at 8000 Hz: 300 Watts * Recommended maximum program power while using crossover at 5000 Hz: 200 Watts * Diaphragm material: Phenolic * Voice coil diameter:.42 (1.6) mm (in) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06XGR65FV | | Additional Features | Durable, Lightweight | | Antenna Location | vehicle sound systems | | Audio Driver Type | Dynamic Driver | | Audio Output Mode | Stereo | | Best Sellers Rank | #193,755 in Electronics ( See Top 100 in Electronics ) #346 in Car Tweeters | | Brand | Selenium | | Built-In Media | Connectors with quick couplings | | Compatible Devices | Laptop, Desktop, Television | | Connectivity Protocol | Ethernet | | Connectivity Technology | wired | | Control Method | App | | Controller Type | ring | | Customer Reviews | 4.7 out of 5 stars 23 Reviews | | Enclosure Material | aluminum, phenolic | | Frequency Response | 20000 Hz | | Impedance | 8 Ohms | | Is Waterproof | False | | Item Dimensions D x W x H | 6"D x 4.7"W x 5.5"H | | Item Weight | 3.73 Pounds | | MP3 player | No | | Manufacturer | DEEJAYLED | | Model Name | JBL SUPER HIGH FREQUENCY TWEETER | | Model Number | ST400TRIO | | Mounting Type | Magnetic Mount | | Number of Items | 1 | | Power Source | Corded Electric | | Speaker Maximum Output Power | 300 Watts | | Speaker Size | 1.6 Inches | | Speaker Type | Tweeter | | Specific Uses For Product | vehicle sound systems | | Warranty Type | Limited | | Water Resistance Level | Not Water Resistant | | Wireless Technology | No Wireless Communication Technology | ## Product Details - **Audio Output Mode:** Stereo - **Brand:** Selenium - **Connectivity Technology:** wired - **Frequency Response:** 20000 Hz - **Speaker Maximum Output Power:** 300 Watts ## Images ![ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet - Image 1](https://m.media-amazon.com/images/I/61lbj7jZ28L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Bueno *by M***A on March 4, 2026* Bueno ### ⭐⭐⭐⭐⭐ JBL worth the money. This is my second JBL selenium *by D***N on May 7, 2023* very smooth sound. This is my second JBL selenium super tweeter. I have it hooked up to my home audio center channel. Beware. Thris unit is massive in size and sound. Even at low volume you can hear the difference . Like being in a movie theater without the harshness of other brands. Recommended for professional use. ### ⭐⭐ Used Items *by A***. on September 16, 2023* ## Frequently Bought Together - Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet - Stetsom STX 2448 DSP PRO - Digital Signal Processor, DSP PRO, Equalizer, High Precision Crossover, Filters, Limiter, Digital Audio Processor 2.4, 2 inputs & 4 outputs - Taramps TS 400x4 400 watts RMS 4 Channels Full Range Car Audio Amplifier, 2 Bridged Channels, RCA Input Class D, Output Power, Multichannel Amplifier System, Small - TS400X4 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/461804801-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite-magnet](https://www.desertcart.be/products/461804801-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite-magnet) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-04-22*