Audison Prima AP 4 4" Midrange Speakers — 40W RMS / 120W Peak, 4Ω, 80 Hz – 7.5 kHz

The Audison Prima AP 4 is a 100 mm (4") midbass driver with a 25 mm pure copper voice coil, built for balanced mid-high output and a very extended response at both ends. It has a shallow 41 mm mounting depth that suits OEM positions, and it is the midbass driver of Audison's APK 163 3-way system. It handles 40W continuous (RMS) and 120W peak power at 4Ω.

Key Features

• 100 mm (4") midbass driver with a frequency response of 80 Hz – 7.5 kHz
• Power handling of 40W continuous / 120W peak, 4Ω, 91 dB sensitivity
• 25 mm pure copper voice coil for a balanced mid-high range
• Water-repellent treated paper cone
• Shallow 41 mm mounting depth for easy OEM installation
• Compact basket with a scratch-resistant coating, developed with the Klippel suite

Technical Highlights

The AP 4 uses a high-density flux ferrite magnet, weighs about 0.4 kg and has a resonance frequency (Fs) of 125 Hz. It has an Xmax of 1.8 mm and a Qts of 1.0. Its cone profile was optimized with the Klippel scan vibrometer.

Ideal For / System Fit

• Midrange duty in a 3-way system
• OEM 4" positions that need a clean, efficient driver
• Upgrades where a woofer and tweeter are already handled by other drivers

Not a woofer or a tweeter: it covers the midrange only, so it needs other drivers and a crossover, and professional installation is recommended.

Installation Note

Allow at least 41 mm of mounting depth. Use a crossover or DSP to give it the right range, and match amplifier power to its 40W continuous rating.

What's Included

1 x pair of Audison Prima AP 4 midbass drivers (confirm the supplied accessories with your supplier)

Precautions

• Use a crossover or DSP to limit the range; do not run it full-range at high levels
• Match amplifier power to the 40W continuous / 120W peak rating
• Confirm the mounting position and depth for your vehicle before buying
• Professional installation is recommended

Audison Prima AP 4 vs. Full-Range Factory Speaker

Frequently Asked Questions

What is the Audison Prima AP 4?
A 4" midbass driver with a pure copper voice coil.

How much power can it handle?
40W continuous (RMS) and 120W peak, at 4Ω.

What frequency range does it cover?
80 Hz – 7.5 kHz, with 91 dB sensitivity.

How deep is it?
About 41 mm of mounting depth.

Is it part of a Prima system?
Yes, it is the midbass driver in the APK 163 3-way system.

Do I need a crossover?
Yes. It is a midrange driver, so use a crossover or DSP to set its range.

Is the cone water-resistant?
Yes. It is a water-repellent treated paper cone.

Can I use it as a woofer?
No. It starts at 80 Hz and is meant for midbass duty.

Product Specifications

Add clean, balanced mids to your system — order the Audison Prima AP 4 today.