American Bass Monster Bass Bundle — 2x XMAXXX Monster 18" Subwoofer + VFL REBEL-8000.1 Amplifier

Two 18" monsters, one flagship amp. The Monster Bass Bundle pairs two American Bass XMAXXX Monster 18" subwoofers with the VFL REBEL-8000.1 monoblock amplifier — the top of the Big Bass lineup and the largest cone size American Bass offers. Built for dedicated SPL builds and demo vehicles that need maximum air movement. What's In This Bundle QTY Component SKU Key Spec 2× American Bass XMAXXX Monster 18" Subwoofer XMAXXX-1822 4,000W RMS each | Dual 2 Ohm Voice Coil | 4" Voice Coil 1× VFL REBEL-8000.1 Amplifier REBEL-8000.1 4,300W @ 2 Ohm | Class D Monoblock System Specifications Sub Configuration Dual 18", coils wired in series (4Ω/sub), subs wired parallel to amp (2Ω final) Sub RMS Each 4,000W RMS Sub RMS Combined 8,000W RMS Amplifier Max Power 4,300W @ 2 Ohm (Class D Monoblock) Amp Min Impedance 1 Ohm Stable Recommended Enclosure Ported, 5.5–6.5 ft³ per sub (not included) Required Wire Gauge 4/0 Gauge (sold separately) You'll Also Need — Pre-Matched Add-Ons Wire kit and battery are not included and sold separately. Pre-matched to your REBEL-8000.1: 4/0 Gauge Amplifier Wire KitMatched to the REBEL-8000.1 running at 2 Ohm final. ABLT-80 Lithium Titanate Battery (80Ah)Rated for 800A continuous discharge — matched to keep voltage stable under sustained, high-output bass demand. Installation Notes Enclosure not included. Recommended: ported enclosure, 5.5–6.5 ft³ per sub. Wire each sub's coils in series, then both subs in parallel to the amp for a 2 Ohm final load. This is a high-power system — verify your vehicle's charging system and grounding before install. All components ship separately from their respective warehouse locations.