Dayton Audio DMA45-4 1.5-Inch Dual-Magnet Aluminum Cone Full-Range Driver 4 Ohm

Overview

Meet the Dayton Audio DMA45-4, a compact 1.5-inch full-range driver designed to deliver detailed highs and a coherent midrange in small enclosures. Built around a dual magnet system and a copper cap, this driver aims to provide a balanced, natural sound without the need for separate tweeters in many DIY projects.

Smart engineering for audible clarity

The DMA45-4 uses a dual neodymium motor to create a symmetrical magnetic field, supporting precise cone control and consistent performance across listening angles. A large copper cap is used to help lower distortion while preserving high-frequency detail, so you hear crisp treble without harshness.

Its rotor, coil, and venting are matched to deliver a remarkably flat full-range response with excellent off-axis performance, so the sound remains balanced even when you move off center in a typical room.

Design for less reflection and better airflow

An exclusive 8-spoke open-frame design provides extensive venting, reducing internal reflections and encouraging efficient airflow. This combination helps keep the voice coil cooler and the sound more natural at higher levels in compact cabinets.

What you can expect in real-world setups

In a small bookshelf or satellite system, the DMA45-4 can cover a wide portion of the audible range, making it a compelling option for DIY builders who want a compact, stand-alone full-range driver. The result is a sound with airy highs, solid midrange, and a sense of scale that belies the driver’s small size.

Versatile placement and enclosure types are possible thanks to its 4-ohm impedance and robust motor structure. The driver is well-suited for sealed or vented enclosures where you want a simple, integrated solution that minimizes phase issues and reduces the need for crossovers above the natural range of the driver.

Key benefits at a glance

• Excellent high frequency response for true full-range applications
• Dual neodymium motor for symmetrical field and precise cone control
• Large copper cap lowers distortion while boosting high-frequency clarity
• Remarkably flat full-range response with strong off-axis performance
• Exclusive 8-spoke open-frame design for venting and minimal reflections

Use-case ideas

• DIY bookshelf speakers for near-field listening and casual music playback
• Compact satellite systems paired with a sub for a full-range feel
• Studio monitor-like setups in small rooms where space is limited
• Experimentation on enclosed or vented enclosures to explore different tuning effects