Audison Prima APBMW K4M 4" 2-Way Component System for BMW & MINI — 50W RMS / 100W Peak, 4Ω, Plug & Play

The Audison Prima APBMW K4M is a 4-inch (100 mm) 2-way component system developed to upgrade BMW and MINI models fitted with a factory 2-way system. It creates a three-dimensional sound stage and brings out accurate timbre. The kit combines a cast-aluminium-basket midrange with a 29 mm Tetolon dome tweeter and a dedicated crossover, using Plug & Play connectors for a direct-fit install. It handles 50W continuous (RMS) and 100W peak power at 4Ω.

Key Features

• 100 mm (4") midrange with a water-repellent pressed-paper cone and a 25 mm fiberglass voice coil
• 29 mm (1.1") Tetolon dome tweeter with dispersion optimized for off-axis output
• Power handling of 50W continuous / 100W peak, 4Ω, 89 dB sensitivity, 90 Hz – 23 kHz response
• Dedicated crossover with a 6 kHz high-pass (6 dB/octave) and a -3 dB / 0 dB tweeter adjustment
• BMW-MINI compatible die-cast aluminium basket with Plug & Play connectors and a neodymium magnet group
• Tweeter support supplied for Plug & Play OEM placements, and a damping removable motor cover

Technical Highlights

The midrange has a low resonance frequency, which allows a high-pass cut-off in the 150–200 Hz range for good mid-low reproduction. Xmax is ±0.5 mm. The woofer weighs about 0.43 kg and the tweeter about 0.06 kg. The K4M and the K4E share the same electrical specifications; they differ in the basket and fixing-screw options used to suit different vehicle models.

Ideal For / System Fit

• BMW and MINI models with a factory 2-way component system
• Owners who want a plug-and-play upgrade without cutting or modifying the car
• Systems driven by an aftermarket amplifier or an Audison DSP amplifier for the best results

Model-specific: check your BMW or MINI model against Audison's Sound Pack Configurator, because the K4M and K4E are not interchangeable across vehicles. Professional installation is recommended.

Installation Note

The kit uses connectors and a tweeter support that match OEM positions. Use the crossover supplied with the kit, and match the amplifier to the 50W continuous rating.

What's Included

1 x pair of Audison Prima APBMW K4M: 2 woofers, 2 tweeters, 2 crossovers and the tweeter support (confirm the exact contents with your supplier)

Precautions

• Confirm your exact BMW or MINI model and whether it needs the K4M or K4E before buying
• Match amplifier power to the 50W continuous / 100W peak rating to avoid damage
• Always use the supplied crossover for the tweeter
• Professional installation is recommended

Audison Prima APBMW K4M vs. Factory BMW/MINI Component Speakers

Frequently Asked Questions

What is the Audison Prima APBMW K4M?
A 4" 2-way component system made to upgrade the factory 2-way speakers in BMW and MINI models.

How much power can it handle?
50W continuous (RMS) and 100W peak, at 4Ω.

What is its frequency range?
90 Hz – 23 kHz, with 89 dB sensitivity.

How is it different from the K4E?
The specifications are the same; the basket and fixing-screw options differ to fit different vehicle models.

Is a crossover included?
Yes. The kit includes a dedicated crossover with a -3 dB / 0 dB tweeter adjustment.

Does it need an amplifier?
It works on a factory or aftermarket amplifier, but an Audison DSP amplifier brings out its full potential.

Is it Plug & Play?
Yes. It has Plug & Play connectors and a tweeter support for OEM positions.

Will it fit my car?
Check your model in Audison's Sound Pack Configurator, since fitment is vehicle-specific.

Product Specifications

Upgrade your BMW or MINI's sound without changing a thing — order the Audison Prima APBMW K4M today.

BMW and MINI are trademarks of BMW AG. Brand names are used for compatibility reference only.