---
product_id: 515572040
title: "ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet"
brand: "selenium"
price: "$U19177"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/515572040-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite-magnet
store_origin: UY
region: Uruguay
---

# 40°x40° precise sound dispersion Diamond-machined aluminum base for heat dissipation 300W max power handling ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet

**Brand:** selenium
**Price:** $U19177
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your audio game with precision-engineered clarity!

## Quick Answers

- **What is this?** ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet by selenium
- **How much does it cost?** $U19177 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/515572040-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

- • **Plug & Play Ready:** Quick coupling connectors make installation seamless—upgrade your sound system effortlessly.
- • **Power Meets Precision:** Handles up to 300W with high-temp materials ensuring durability and exceptional acoustic output.
- • **Engineered for Longevity:** Phenolic diaphragm offers natural sound and long-lasting performance over metallic alternatives.
- • **Focused Sound Projection:** Bullet-shaped horn delivers a tight 40°x40° dispersion for targeted audio coverage.
- • **Crystal-Clear High Frequencies:** Experience ultra-detailed sound without harshness, perfect for audiophiles craving clarity.

## Overview

The ST400TRIO 8 Ohm Super Frequency Tweeter features a barium ferrite magnet and diamond-machined aluminum base for superior heat dissipation. It delivers a wide 40°x40° sound dispersion and handles up to 300 watts of power, ensuring crisp, natural high-frequency audio with a durable phenolic diaphragm. Designed for both individual and array use, it’s perfect for professional-grade sound systems seeking clarity and reliability.

## Description

ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet

## 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 |
|---------------|-------|
| Mounting Type | Tabletop Mount |
| Material | aluminum, phenolic |
| Model Name | JBL SUPER HIGH FREQUENCY TWEETER |
| Speaker Type | Tweeter |
| Special Feature | Durable, Lightweight |
| Recommended Uses For Product | vehicle sound systems |
| Compatible Devices | Laptop, Desktop, Television |
| Subwoofer Diameter | 12 Inches |
| Surround Sound Channel Configuration | 1 |
| Included Components | Connectors with quick couplings |
| Product Dimensions | 15.2D x 11.9W x 14H Centimeters |
| Item Weight | 1.69 kg |
| Impedance | 8 Ohms |
| Is Waterproof | False |
| Number of Items | 1 |
| Control Method | App |
| Wireless Communication Technology | Bluetooth |
| Speaker Size | 1.6 Inches |
| Power Source | Battery Powered |
| Brand Name | Selenium |
| Item model number | ST400TRIO |
| Manufacturer | DEEJAYLED |
| Country of Origin | USA |
| Item Weight | 1 kg 690 g |

## Product Details

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

## Images

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

## Frequently Bought Together

- Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet
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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-01-22*