AP-M81AC 4x8 LOUD AS HELL planka slope v1

AP-M81AC 4x8 LOUD AS HELL Plank Slope V1 – Arnold classic with raw SPL and AT-32 top-end dominance

AP-M81AC 4x8 LOUD AS HELL Plank Slope V1 is a system built for those who demand maximum power, uncompromising presence, and the classic Arnold-series dynamics. Featuring four Apocalypse AP-M81AC 8″ midrange drivers and two Deaf Bonce AT-32 horn tweeters, this plank delivers raw SPL performance from midbass to treble.

The midbass units, AP-M81AC, define brutality in 8″ format. With 300W RMS, high sensitivity, and an operating range from 150 Hz to 8000 Hz, these speakers are designed to deliver massive sound pressure and hard-hitting midrange – without losing precision or control.

Treble is handled by two Deaf Bonce AT-32 horn tweeters, optimized for competition and extreme SPL setups. With 35W RMS, 108 dB sensitivity, and exceptional ability to cut through at high volumes, the AT-32 is the perfect match for the AP-M81AC’s midrange power.

The system uses DB 2-way filters 10k, crossing at 10 000 Hz (12 dB/oct) and offering three levels of tweeter attenuation (0, -3, -6 dB) for optimal tuning across different installation setups.

Everything is installed in a robust LOUD AS HELL 4x8″ Raggarplanka Slope – built from heavy MDF, angled for optimal dispersion, and embroidered with the LOUD AS HELL logo. Four midbass slots and two tweeter positions make installation as straightforward as the system is brutal.

AP-M81AC 4x8 LOUD AS HELL Plank Slope V1 is the choice for those who want classic Arnold-series power combined with extreme SPL highs from the AT-32 – a system that doesn’t apologize for anything.

NOTE! This package is sold as a DIY kit.
The enclosure’s tweeter holes may be smaller than the included tweeters. This is to allow compatibility with a wide range of tweeters in the universal enclosure. A rasp or similar tool may be needed to enlarge the hole for a perfect fit.