---
product_id: 396716669
title: "Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet"
brand: "selenium"
price: "$1170452"
currency: COP
in_stock: true
category: "Selenium"
url: https://www.desertcart.co/products/396716669-selenium-st400trio-8-ohm-super-frequency-tweeter-with-barium-ferrite
store_origin: CO
region: Colombia
---

# 8 Ohm nominal impedance for precise audio matching 40° x 40° dispersion for wide, immersive sound coverage 300W max program power at 8kHz for powerful output Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet

**Brand:** selenium
**Price:** $1170452
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your sound game with precision and power – don’t just hear it, feel it!

## Quick Answers

- **What is this?** Selenium ST400TRIO 8 Ohm Super Frequency Tweeter with Barium Ferrite Magnet by selenium
- **How much does it cost?** $1170452 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/396716669-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

- • **Quick-Coupling Connectors:** Effortless installation and secure connections mean less downtime and more listening pleasure.
- • **Phenolic Diaphragm Durability:** Long-lasting, natural sound that outperforms metallic alternatives without breaking the bank.
- • **Versatile Array Compatibility:** Use solo for intimate setups or combine multiple units for stadium-level sound coverage.
- • **Crystal-Clear High Frequencies:** Experience ultra-detailed sound without harshness, perfect for audiophiles craving clarity.
- • **Diamond-Machined Aluminum Base:** Enhanced heat dissipation keeps your tweeter cool and performing at peak efficiency.

## Overview

The Selenium ST400TRIO is a high-performance 8 Ohm super tweeter designed for exceptional clarity and detail in high-frequency audio. Featuring a diamond-machined aluminum base for superior heat dissipation, a durable phenolic diaphragm for natural sound, and a bullet-shaped horn delivering 40° x 40° dispersion, it supports up to 300 Watts program power at 8kHz. Ideal for both individual use in low-power systems and scalable arrays, it ensures professional-grade sound coverage with quick-coupling connectors for easy setup.

## Description

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)

## 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 |
| Compatible devices | Television |
| Control method | App |
| Impedance | 8 Ohms |
| Included components | Connectors with quick couplings |
| Is waterproof | False |
| Item model number | ST400TRIO |
| Item weight | 1.69 kg |
| Manufacturer | DEEJAYLED |
| Material | Aluminum |
| Model name | JBL SUPER HIGH FREQUENCY TWEETER |
| Mounting type | Magnetic Mount |
| Number of Items | 1 |
| Power source | Corded Electric |
| Product dimensions | 15.2D x 11.9W x 14H centimeters |
| Recommended uses for product | vehicle sound systems |
| Speaker size | 1.6 Inches |
| Speaker type | Tweeter |
| Special features | Durable, Lightweight |
| Subwoofer diameter | 12 Inches |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** Selenium
- **Connectivity technology:** wired
- **Frequency response:** 20000 Hz
- **Speaker maximum output power:** 300 Watts

## Images

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

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-03-12*