Audison Prima APBMW K4E 4" 2-Way Component System for BMW & MINI — 50W RMS / 100W Peak, 4Ω, Plug & Play

The Audison Prima APBMW K4E 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, using a die-cast aluminium basket with Plug & Play connectors, a 29 mm Tetolon dome tweeter and a dedicated crossover. It handles 50W continuous (RMS) and 100W peak power at 4Ω, and it is the sibling of the K4M, with a different basket and fixing-screw option.

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. Xmax is ±0.5 mm, the woofer weighs about 0.43 kg and the tweeter about 0.06 kg. Retailer listings mention an optional door mounting adapter for some models, and Finnish distributor notes list the X5 and X6 (F15/F85, F16/F86) front and rear doors as needing the separate APBMW A4E adapters.

Ideal For / System Fit

• BMW and MINI models with a factory 2-way component system that fits the K4E basket
• Owners who want a plug-and-play upgrade without cutting 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, since some models need adapters. Professional installation is recommended.

Installation Note

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

What's Included

1 x pair of Audison Prima APBMW K4E: 2 woofers, 2 tweeters, 2 crossovers and the tweeter support (confirm the exact contents, and any door adapters, with your supplier)

Precautions

• Confirm your exact BMW or MINI model, and whether it needs the K4E or K4M, 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 K4E vs. Audison Prima APBMW K4M

Frequently Asked Questions

What is the Audison Prima APBMW K4E?
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 K4M?
The specifications are the same; the basket and fixing screws differ to suit different vehicles.

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

Do some models need adapters?
Yes. Some BMW models, such as certain X5 and X6 doors, need separate APBMW A4E adapters.

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

Give your BMW or MINI a direct-fit sound upgrade — order the Audison Prima APBMW K4E today.

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