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NEW Epique High Resolution Ceramic Dome Tweeter 30mm 4 Ohm EC30-4

EPIQUE by Dayton AudioPart # 275-500
Model: EC30-4
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The Dayton Audio Epique EC30-4 Ceramic Dome Tweeter delivers ultra-clear, high-resolution sound with precision engineering. Its vapor-deposited ceramic-coated aluminum dome ensures piston-like accuracy while eliminating common breakup distortion, extending smooth response beyond 40 kHz. With advanced rear-wave control, low-distortion design, and a durable aluminum faceplate, the EC30-4 offers unmatched transparency and reliability for premium home audio, studio monitors, and custom loudspeakers.

Key Features

  • High-Resolution Ceramic Dome – 30mm aluminum dome reinforced with vapor-deposited ceramic coating for stiffness and accurate piston performance
  • Extended Frequency Response – Smooth, distortion-free sound extending well past 40 kHz, ideal for high-resolution audio systems
  • Rear-Wave Dissipation – Precision-engineered back plate and damping materials eliminate internal resonances for maximum transparency
  • Low Distortion Design – Copper cap and Kapton former reduce inductance and distortion, enhancing clarity and detail
  • Premium Build Quality – Oversized Y35 magnet delivers power and control, while a treated cloth surround ensures long-term performance
  • Durable & Stylish Construction – 3.6mm thick aluminum faceplate with honeycomb mesh protective grill for added strength and protection
  • Versatile Applications – Perfect for high-end home audio, studio monitors, and custom loudspeaker designs seeking uncompromised treble performance
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Overview

Epique High Resolution Ceramic Dome Tweeter 30mm 4 Ohm EC30-4

Epique High Resolution Ceramic Dome Tweeter 30mm 4 Ohm EC30-4

The Dayton Audio Epique EC30-4 Ceramic Dome Tweeter sets a new benchmark for high-resolution audio performance. Built to last, it is designed with meticulous precision and crafted from premium materials to ensure both exceptional sound and long-term reliability. The EC30-4 combines substance with style, featuring a rugged 3.6mm aluminum faceplate and a honeycomb mesh protective grill that deliver durability without compromising elegance. Its advanced ceramic dome construction brings out the finest details in music reproduction, producing crystal-clear highs and unmatched transparency that remain consistent across listening environments.

Engineered for Transparency

At the heart of its design is a 30mm aluminum dome, reinforced with a vapor-deposited ceramic coating. This advanced construction delivers true piston-like motion, eliminating the common breakup modes found in standard aluminum domes and extending usable bandwidth well beyond 40 kHz—ideal for today’s high-resolution audio formats. A lightweight Kapton former further enhances performance by increasing power handling while reducing moving mass, ensuring clean, dynamic response even at demanding output levels.

To further enhance performance, the EC30-4 employs a precision-engineered back plate with strategically placed damping materials that effectively dissipate the rear wave, reducing internal resonances and preserving clarity. A copper cap and Kapton former minimize inductance and distortion, allowing for smoother, more detailed playback across the frequency spectrum. Built with an oversized Y35 magnet and treated low-loss cloth surround, the tweeter offers both power and long-term reliability for demanding audio applications.

Built for the Long-Haul

Tipping the scales at nearly 3 lbs, the EC30-4 makes a bold statement in both performance and design. Its rugged 3.6mm aluminum faceplate and sleek honeycomb mesh grill not only ensure rock-solid durability but also exude refined elegance. Perfect for high-end home audio, studio monitoring, or custom speaker builds, this tweeter delivers shimmering treble with uncompromising clarity—engineered for those who refuse to settle for anything less than extraordinary sound.

The EC30-4 delivers an impressively flat frequency response from 800 Hz all the way to 20 kHz, ensuring smooth, natural reproduction across the critical midrange and treble. Its advanced ceramic dome design effectively suppresses resonance, keeping any potential breakup modes well controlled and pushed far beyond the limits of human hearing—remaining tamed below 40 kHz. This extended stability not only preserves accuracy in the audible spectrum but also enhances transient response and overall clarity, making the EC30-4 an ideal choice for applications where precision and detail are paramount.

Key Specifications:

  • Impedance: 4 Ohm
  • Fs: 698.8 Hz
  • SPL: 92 dB
  • Frequency Response: 1,500 - 40,000 Hz
  • Power Handling: 80W RMS


Product Details

BrandEPIQUE by Dayton Audio
ModelEC30-4
Part Number275-500
UPC848864079905
Unit of MeasureEach
Weight3.3125

Product Specifications

Bolt Circle Diameter4.5
Cutout Diameter4
Tweeter TypeCeramic Dome
Power Handling (RMS)80 Watts
Power Handling (MAX)160 Watts
Impedance4Ω
Frequency Response1,500 to 40,000Hz
Sensitivity92dB 2.83V/1m
Voice Coil Diameter1.125"

Thiele-Small Parameters

Resonant Frequency (Fs)700Hz
DC Resistance (Re)4.03Ω
Mechanical Q (Qms)3.376
Electromagnetic Q (Qes)1.163
Total Q (Qts)0.8651

Materials of Construction

Surround MaterialCloth
Voice Coil Wire MaterialCopper
Voice Coil FormerKapton® / Polyimide
Basket / Frame MaterialCast Aluminum
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter5.1"
Baffle Cutout Diameter4"
Depth2"
# Mounting Holes6

Specifications

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