We are a Rockford Fosgate authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
The Rockford Fosgate PM500X1BD Class BD Mono Amplifier is built for people who want strong, clean bass without wasting power or running hot. Thanks to Rockford Fosgate’s Class BD high-efficiency design, it hits around 75 to 80 percent efficiency while still keeping distortion lower than typical Class D amps. With CEA-2006 certified output, it delivers 150W RMS at 4 ohms, 300W RMS at 2 ohms, and up to 500W RMS at 1 ohm, giving you flexible power for different sub setups while keeping performance consistent and predictable.
This amp is not just about power, it is built to survive real-world conditions where heat and vibration are constant. The cast aluminum heatsink is engineered to improve thermal dissipation by about 30 percent over standard designs, helping keep things cool even when the bass is pounding nonstop. MEHSA³ thermal transfer technology pushes heat away from the MOSFETs more efficiently, giving you better stability, longer lifespan, and more reliable performance when you are pushing the system hard.
Inside the PM500X1BD, DSM precision circuit engineering and balanced differential inputs work together to keep your signal clean and noise free. That means less interference and more accurate bass response, even in noisy marine or powersports environments. The CLEAN level calibration system helps you dial in gain properly using built-in clip indicators, so you get strong output without distortion. NOMAD intelligent protection is always working in the background, monitoring heat, voltage, current, and impedance so your amp stays safe without choking your sound.
This mono amp gives you all the tools you need to shape your low end exactly how you want it. A fixed 28Hz infrasonic filter protects your subwoofer from ultra-low frequencies that can waste power or cause damage in vented enclosures. You also get a 12dB/oct adjustable low-pass crossover from 50Hz to 250Hz and a Punch EQ circuit with up to +18dB bass boost centered at 45Hz for serious low-end impact. With heavy-duty 4-gauge compatible terminals and secure speaker outputs for multi-sub setups, the PM500X1BD is built to deliver tight, powerful bass while staying clean, efficient, and ready for harsh environments.
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We are a Rockford Fosgate authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
The Rockford Fosgate PM500X1BD Class BD Mono Amplifier is built for people who want strong, clean bass without wasting power or running hot. Thanks to Rockford Fosgate’s Class BD high-efficiency design, it hits around 75 to 80 percent efficiency while still keeping distortion lower than typical Class D amps. With CEA-2006 certified output, it delivers 150W RMS at 4 ohms, 300W RMS at 2 ohms, and up to 500W RMS at 1 ohm, giving you flexible power for different sub setups while keeping performance consistent and predictable.
This amp is not just about power, it is built to survive real-world conditions where heat and vibration are constant. The cast aluminum heatsink is engineered to improve thermal dissipation by about 30 percent over standard designs, helping keep things cool even when the bass is pounding nonstop. MEHSA³ thermal transfer technology pushes heat away from the MOSFETs more efficiently, giving you better stability, longer lifespan, and more reliable performance when you are pushing the system hard.
Inside the PM500X1BD, DSM precision circuit engineering and balanced differential inputs work together to keep your signal clean and noise free. That means less interference and more accurate bass response, even in noisy marine or powersports environments. The CLEAN level calibration system helps you dial in gain properly using built-in clip indicators, so you get strong output without distortion. NOMAD intelligent protection is always working in the background, monitoring heat, voltage, current, and impedance so your amp stays safe without choking your sound.
This mono amp gives you all the tools you need to shape your low end exactly how you want it. A fixed 28Hz infrasonic filter protects your subwoofer from ultra-low frequencies that can waste power or cause damage in vented enclosures. You also get a 12dB/oct adjustable low-pass crossover from 50Hz to 250Hz and a Punch EQ circuit with up to +18dB bass boost centered at 45Hz for serious low-end impact. With heavy-duty 4-gauge compatible terminals and secure speaker outputs for multi-sub setups, the PM500X1BD is built to deliver tight, powerful bass while staying clean, efficient, and ready for harsh environments.
