Morel BMW Integration Reference IR-BMW4INT 2 Way Plug & Play Coaxial Speakers

The Morel IR-BMW4INT is a Reference-series 4-inch (100mm) Integra point-source coaxial speaker for modern BMW models, featuring a concentrically mounted 28mm Acuflex silk dome tweeter, hybrid EVC motor, and plug-and-play DirectFit installation. It is part of the Morel BMW Integration Reference range.

For the Performance-level options, see the Morel IP-BMW42 component set and Morel IP-BMW4C coaxial.

Key specifications

• Configuration: Integra (concentric 2-way point source)
• Woofer: 4" (100mm) paper composite cone, hybrid EVC motor
• Woofer voice coil: 2.1" (51mm)
• Tweeter: 1.1" (28mm) Acuflex silk dome
• Impedance: 4 ohms
• Power handling: 80W RMS, 250W max
• Sensitivity: 90 dB (2.83 V/1m)
• Frequency response: 80 – 25,000 Hz
• Fitment: DirectFit for BMW, mounting hardware and trim tools included

Morel BMW Integration Reference IR-BMW4INT

The IR-BMW4INT is part of Morel's Reference level BMW Integration range. It uses Morel's Hybrid Integra speaker architecture, where a 2.1" (51mm) voice coil and powerful hybrid EVC motor deliver high power handling and tight cone control. The concentrically mounted tweeter uses a 1.1" (28mm) Acuflex silk dome with a dual neodymium magnet motor. The DirectFit chassis design, supplied mounting brackets, and factory wire connections allow fitment to modern BMW models without modification. The system is optimised for use with an amplifier and DSP.

• DirectFit design — no modification required
• Designed for amplifier and DSP upgrade
• Plug-and-play wire connection
• High power handling and low distortion
• All mounting hardware included for BMW and MINI models on Morel's BMW compatibility list
• Installation tools included

EVC Motor

Morel's EVC™ technology uses large voice coils to improve heat dissipation, power handling, and linearity. The motor system sits within the voice coil, directing all magnetic energy there and eliminating stray flux. The result is a compact, magnetically shielded, and efficient motor design.

Handcrafted Acuflex Soft Dome

A specially engineered damping compound is hand-applied to the soft dome, adding rigidity and damping to improve clarity and bandwidth. The Acuflex™ diaphragm uses controlled cancelling break-up — each break-up mode is counteracted by another in the opposite direction — producing a smooth frequency response.

Hybrid Magnet Motor

The Hybrid motor combines a ferrite magnet with a powerful neodymium magnet to create a compact, lightweight motor system. More amplified power is converted into sonic energy, delivering strong performance even from a small driver.

Integra

Integra describes a speaker where the woofer and tweeter share a common chassis, with the tweeter concentrically recessed within the woofer cone. Unlike a standard coaxial, this minimises phase error and keeps the sound field consistent in all directions, achieving near-perfect time alignment.

Paper Cone

Morel's paper composite cones are ultra-lightweight, making them well suited to drivers using smaller motors and voice coils, whilst retaining the natural acoustic properties that have made paper a preferred cone material since the earliest loudspeakers.