Massive Audio BPX800.4 4-Channel Amplifier

The BPX800.4 is Massive Audio's four‑channel BPX Series Class A/B amplifier built for high‑demand installs, delivering 200W x 4 peak power and 2Ω stability while integrating with factory radios via a built‑in OEM line converter.

• Built-in OEM Line Converter: RCA inputs that can take high‑level speaker signals up to 9V, enabling seamless connection to stock head units without extra adapters.
• 2 Ohm Stable Design: Per‑channel impedance operation supports lower‑impedance loads to maximize output where you want more SPL from the same amp.
• Mil‑Spec PCB with SMD Parts: Rugged, precision construction designed to endure the automotive environment and deliver reliable long‑term performance.
• Full MOSFET with High‑Grade Switching Devices: Efficient, fast switching for clean power delivery and better thermal performance under demanding musical transients.
• Built‑In Auto Sensing Turn‑On Function (Hi‑Inputs): Automatically turns the amp on when a high‑level input is detected, simplifying integration with factory radios.
• 12V Remote Output for External Devices (Hi‑Level Inputs): Provides a remote feed to other devices from the amplifier, enabling coordinated system activation.
• Bass Boost: 0–6 dB or 12 dB at 45 Hz, allowing tailored low‑end emphasis to suit different car acoustics.
• Peak Output Power @ 14.4V: 200W x 4, offering strong dynamic peaks across all four channels for sounding punchy in musical passages.
• 2 Ohm RMS: 120W x 4, suitable for driving low‑impedance speaker loads with substantial continuous output.
• 4 Ohm RMS: 60W x 4, appropriate for standard 4Ω speaker setups with reliable, steady power.
• 4 Ohm Bridged: 240W x 2, enabling two channels to drive a single high‑powered load such as a sub or dual voice‑coil speaker.
• Input Level: 0.2–9.0V, providing flexibility to match a wide range of head units and factory radios.
• Freq. Response: 10Hz–35kHz, covering bass through high treble for detailed, full‑range playback.
• THD at 4 Ohm Load: <0.1% (at rated power), contributing to clean, accurate sound even at higher output levels.
• S/N Ratio: >90dB, helping keep quiet background noise out of the signal path for clearer listening.
• Minimum Load: 2 Ohm Stereo, indicating the lowest practical resistance the amplifier is designed to drive in standard stereo operation.
• Dimensions: 2"H x 7.1"W x 11.8"L, compact footprint suitable for a variety of dash or trunk mounting locations.
• 5‑Way Protection Circuitry: Comprehensive safeguards to protect amp and speakers from common wiring and load issues.
• World Wide Standards Compliant: RoHS, E‑Mark, CTA2006, CE, ensuring global safety and environmental compliance.

In a typical multi‑speaker car audio build, the BPX800.4 powers a four‑speaker front/rear setup at 4Ω with robust, clean output, or bridged into a single 4Ω load for a sub. The built‑in OEM line converter and auto turn‑on streamline integration with stock radios, while the 2Ω stability and wide bandwidth support dynamic, high‑fidelity sound across genres. Five‑way protection and Mil‑Spec construction provide reliability in automotive environments, making the BPX800.4 a capable core for enthusiast‑level systems.