AP-M61SE PRO 4x6.5 LOUD AS HELL planka slope v3

AP-M61SE PRO 4x6.5 LOUD AS HELL Plank Slope V3 – Sylvester PRO Performance with High-End Treble Sharpness

The AP-M61SE PRO 4x6.5 LOUD AS HELL Plank Slope V3 is for those who demand maximum performance from every component – without breaking the bank. With Deaf Bonce’s AP-M61SE PRO from the Sylvester series and the powerful AT-37 Sport tweeter, you get a system that combines power, clarity, and durability in a ready-to-run package built to dominate.

At the heart of the system are four Apocalypse AP-M61SE PRO 6.5" midrange drivers – a PRO version of Sylvester’s best-seller, designed to deliver high SPL and HiFi-like midrange reproduction. With 150W RMS, 300W max power, a paper cone, robust steel basket, and 102.8 dB sensitivity, these drivers produce pressure you can feel – without losing detail or clarity. The wide frequency range of 100–15,000 Hz covers the full midrange and more – ideal for those who demand both range and precision.

The highs are handled by two AT-37 Sport horn tweeters, with 60W RMS, 120W max, polycarbonate diaphragm, and 108.8 dB SPL. The result is sharp, powerful treble that lifts the sound without overpowering it – perfectly matched to the Sylvester PRO’s intense midrange character.

To tie everything together, two DB 2-way filters v2 are included, optimized for 2-ohm operation between dual 4-ohm midbass drivers and tweeters. With a crossover frequency of 4000 Hz (12 dB/oct) and three-stage tweeter attenuation (0, -3, -6 dB), you can tailor the sound to match your system and your taste.

Everything is installed in a dBVox Raggarplanka Slope Style, built from MDF and covered in black carpet with an embroidered LOUD AS HELL logo. Four slots for 6.5" midrange drivers, two for tweeters, and a side-mounted terminal – installation is as smooth as the system is brutal.

AP-M61SE PRO 4x6.5 LOUD AS HELL Plank Slope V3 is the choice for those who want the Sylvester series’ muscular PRO performance, clean treble, and sound that holds up – both on the road and in the competition arena.

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