AP-M81AC 4x8 LOUD AS HELL planka slope v3

AP-M81AC 4x8 LOUD AS HELL SPL-board Slope V3 – Arnold brute force with sport-optimized top-end control

The AP-M81AC 4x8 LOUD AS HELL SPL-board Slope V3 is built for those seeking maximum midrange power and a crisp, fast top end that can keep up in any situation. With four Apocalypse AP-M81AC 8" midrange drivers and two Deaf Bonce AT-32 Sport horn tweeters, this board delivers raw SPL performance combined with sharp and efficient high-frequency reproduction.

The AP-M81AC midbass drivers maintain the classic Arnold character – 300W RMS, extreme sensitivity, and a recommended operating range of 150 Hz to 8000 Hz. The result is massive sound pressure, explosive attack, and dominant midrange presence.

The highs are now handled by two Deaf Bonce AT-32 Sport horn tweeters – designed to combine compact mounting, high sensitivity (108.3 dB), and a clean, articulate top end. With a rugged neodymium magnet and polycarbonate diaphragm, the AT-32 Sport delivers fast response and efficiency – a perfect match to the aggressive drive of the AP-M81AC.

The system uses DB 2-way filters 10k, with a 10 000 Hz crossover point (12 dB/oct) and three-step attenuation (0, -3, -6 dB) for the tweeters, giving you the flexibility to tailor the system balance to your setup.

Everything is installed in a LOUD AS HELL 4x8" SPL-board Slope – a heavy-duty MDF enclosure, angled for improved sound dispersion, embroidered LOUD AS HELL logo, and side-mounted terminal for easy connection.

The AP-M81AC 4x8 LOUD AS HELL SPL-board Slope V3 is the choice for those who want classic Arnold dynamics paired with a sport-optimized top end – a system that both dominates and delivers across every frequency.

NOTE! This package is sold as a DIY kit.
The tweeter hole in the enclosure may be smaller than the included tweeters. This allows most tweeters to be used with the provided universal enclosure. You may need to use a rasp or similar tool to widen the hole for a perfect fit.