AP-M81AC 4x8 LOUD AS HELL planka slope v2

AP-M81AC 4x8 LOUD AS HELL SPL-board Slope V2 – Brutal Arnold power in 8-inch format

The AP-M81AC 4x8 LOUD AS HELL SPL-board Slope V2 is the package for those who want to maximize every aspect of sound pressure, force, and presence. Featuring four extreme Apocalypse AP-M81AC 8" midrange drivers and two razor-sharp AP-T25 NEO V2 tweeters, this board quite literally moves air – with precision and raw power.

The AP-M81AC midbass drivers represent the pinnacle of the DeafBonce Arnold series. With 300W RMS, improved low-end response thanks to a lowered FS, and retained extreme sensitivity, these 8-inch monsters deliver explosive SPL from 150 Hz up to 8000 Hz. The result is massive, controlled, and razor-sharp reproduction across the midrange – perfect for those who refuse to compromise.

The highs are handled by two AP-T25 NEO V2 horn tweeters, rated at 100W RMS with a neodymium magnet and 108 dB sensitivity. Designed to keep up with the Arnold series' aggressive midrange, they provide clear and powerful highs even under extreme SPL conditions.

The system uses DB 2-way filters 10k for crossover at 10 000 Hz (12 dB/oct), with a three-step tweeter attenuation (0, -3, -6 dB) to fine-tune the top end according to installation and personal preference.

Everything is mounted in a custom-built LOUD AS HELL 4x8" SPL-board Slope – a sealed, angled board in heavy MDF with a central divider and an embroidered LOUD AS HELL logo on the back. Four 8" midbass slots, two tweeter mounts, and side-mounted terminals make installation simple and efficient – ready for serious play.

AP-M81AC 4x8 LOUD AS HELL SPL-board Slope V2 is the solution for those who want the heaviest, most powerful, and uncompromising midrange in their vehicle – with highs that match the brutality step for step.

NOTE! This package is sold as a DIY kit.
The tweeter hole in the enclosure may be smaller than the supplied tweeters. This is to ensure compatibility with most tweeter models in the included universal enclosure. A rasp or similar tool may be needed to adjust the hole for a perfect fit.