Massive Audio EX44N 4-Channel Amplifier

The Massive Audio EX44N is a four-channel amplifier delivering 100W RMS per channel at 4 ohms, designed for serious multi‑channel car audio builds with advanced input and control options.

• RMS Power: 100w x 4 @ 4 Ohm — Provides steady, clean power across all four channels into a standard 4Ω speaker load for balanced front/rear decks or component sets.
• RMS @ 2 Ohms: 200w x 4 — When driven as a 2Ω stereo load, each channel can deliver higher output, useful for demanding installs with higher efficiency speakers while monitoring thermal load.
• Bridged RMS: 400w x 2 — Two channels can be bridged to a mono output for a single high‑power channel, ideal for a sub or high‑demand mono driver.
• Min Impedance: 2 Ohm Stereo — The amp is rated to operate into 2Ω per channel in stereo, enabling more aggressive power delivery with proper cooling.
• Min Ohm Bridged: 4 Ohm — In bridged mode, the minimum load is 4Ω, ensuring stable operation when combining channels for a mono path.
• THD: <0.05% @ 4 Ohm — Very low distortion at rated power helps preserve clarity and audio integrity at higher listening levels.
• S/N: >90 dB — Low noise floor to keep signal clarity even at elevated gains and in vehicle noise environments.
• Input Level: 0.4–10V (Hi or Lo inputs) — Compatible with both low‑level RCA and higher‑voltage inputs, simplifying integration with a wide range of head units.
• Freq. Response: 10 Hz – 25 kHz — Wide bandwidth ensures full bass through treble, with headroom for accurate transients and high‑frequency content.
• Built‑in OEM Line Converter — RCA inputs accept RCA or speaker levels up to 10V, enabling straightforward integration with factory radios and aftermarket heads without extra converters.
• Auto Turn On — DC offset music sensing triggers turn‑on, reducing wiring requirements and ensuring reliable startup with non‑CLS head units.
• Bass Boost: 0–12 dB — Adjustable low‑end emphasis to tailor bass response to vehicle acoustics and speaker choice.
• 12V Out Terminal — Provides a 12V output to feed external devices or processors, simplifying multi‑device installations.
• Rail CAP (Optional) — Docking input for a Massive Rail CAP up to ~4 Farads, offering reserve power for bass transients when installed.
• X10 Crossover Controls — On 2/4/5‑channel models, a precision X10 switch allows high‑pass or low‑pass filtering at 3 kHz (up or down) or band‑pass, enabling direct drive of raw drivers with tight output control.
• Protection & Compliance — Next Gen Advanced 5‑Way Protection; CTA‑2006 compliant; designed to guard against shorts, thermal and electrical faults.
• Build & Fidelity — Mil‑Spec double‑sided PCB with SMD parts, full MOSFET switching, Class AB design, and built‑in noise reduction circuitry for durable, clean power.
• Dimensions — 9.5" x 5.9" x 2.1" chassis footprint, suitable for compact under‑seat or trunk installations.
• Bass Remote — n/a
• Remote Output for External Devices — Additional 12V‑trigger style output to power or enable other devices in the system.

The EX44N shines in four‑speaker front/rear configurations or as a bridged mono channel for a dedicated sub, with flexible input options, active crossover capability, and robust protection to keep a high‑end install clean and reliable in daily driving.