---
product_id: 515572040
title: "Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet"
brand: "selenium"
price: "B/.646"
currency: PAB
in_stock: true
category: "Selenium"
url: https://www.desertcart.com.pa/products/515572040-selenium-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite
store_origin: PA
region: Panama
---

# 8 Ohm nominal impedance for precise load matching 40° x 40° bullet horn dispersion for wide, focused sound 300W max program power for powerful, distortion-free highs Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet

**Brand:** selenium
**Price:** B/.646
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your sound game with precision-tuned clarity that commands attention!

## Quick Answers

- **What is this?** Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet by selenium
- **How much does it cost?** B/.646 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/515572040-selenium-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite)

## 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

- • **Power Meets Precision:** Handles up to 300 Watts with high-temp materials ensuring durability and exceptional acoustic output.
- • **Premium Build Quality:** Aluminum base and diffuser for superior heat dissipation and longevity, finished with diamond machining.
- • **Effortless Integration:** Quick coupling connectors and 8 Ohm impedance make setup seamless in any pro or home audio system.
- • **Wide Yet Focused Coverage:** Bullet-shaped horn design delivers a 40° x 40° dispersion, filling your space with balanced sound.
- • **Crystal-Clear High Frequencies:** Experience ultra-detailed sound without harshness, perfect for audiophiles who demand clarity.

## Overview

The Selenium ST400TRIO is a high-performance 8 Ohm super frequency tweeter designed for professional and enthusiast audio setups. Featuring a phenolic diaphragm and a bullet-shaped aluminum horn, it delivers clear, natural high frequencies with a wide 40° x 40° dispersion. Built with high-temperature materials and diamond-machined aluminum components, it supports up to 300 Watts of program power, ensuring durability and powerful output without distortion. Ideal for vehicle sound systems and wired stereo setups, it offers quick coupling connectors for easy installation.

## Description

JBL SUPER HIGH FREQUENCY TWEETER

## 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 |
| Age Range Description | Adult |
| Antenna Location | vehicle sound systems |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Box Contents | Connectors with quick couplings |
| Brand | Selenium |
| Brand Name | Selenium |
| Compatible Devices | Laptop, Desktop, Television |
| Connectivity Protocol | Ethernet |
| Connectivity Technology | wired |
| Control Method | App |
| Controller Type | ring |
| Enclosure Material | aluminum, phenolic |
| Frequency Response | 20000 Hz |
| Impedance Unit of Measure | 8 Ohms |
| Is Waterproof | False |
| Item Dimensions D x W x H | 15.2D x 11.9W x 14H Centimeters |
| Item Weight Unit of Measure | 3.73 Pounds |
| MP3 player | No |
| Manufacturer | DEEJAYLED |
| Model Name | JBL SUPER HIGH FREQUENCY TWEETER |
| Model Number | ST400TRIO |
| Mounting Type | Tabletop Mount |
| Network Connectivity Technology | wired |
| Number of Audio Channels | 1 |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Product Features | Durable, Lightweight |
| Speaker Maximum Output Power | 300 Watts |
| Speaker Size | 1.6 Inches |
| Speaker Type | Tweeter |
| Specific Uses For Product | vehicle sound systems |
| Subwoofer Speaker Diameter Unit of Measure | 12 Inches |
| Tweeter Driver Diameter | 1 Inches |
| Unit Count | 1 Count |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |

## Product Details

- **Brand:** Selenium
- **Speaker Maximum Output Power:** 300 Watts
- **Frequency Response:** 20000 Hz
- **Connectivity Technology:** wired
- **Audio Output Mode:** Stereo

## Images

![Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet - Image 1](https://m.media-amazon.com/images/I/61lbj7jZ28L.jpg)

## Frequently Bought Together

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-07-17*