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Alpine

Alpine - X-Power Series Class D Digital Mono MOSFET Amp with Variable Low-Pass Filter - Black

Model: MRX-M55
SKU: 5526431
This item is no longer available in new condition. See similar items below
  • Key Specs
    • Amplifier Class: D (An amplifier's mode of operation, specifically the conditions in which its electrical current flows for the duration of an audio signal, determines its class. Each class has its strengths and weaknesses when it comes to power efficiency, levels of crossover distortion, and overall sound quality.)
    • Number Of Channels: 1
    • Bass Boost: None (Circuitry that boosts the bass response of the amplifier, improving audio reproduction enhancing the sound of low frequencies. Fixed boost means the level of bass response is preset, whereas variable boost allows the user to make adjustments.)
    • Low-Pass Crossover: Variable (Devices with this function allow only audio frequencies below a chosen cut-off frequency to pass through to a speaker or sound system. A device may have a cut-off frequency predetermined by its manufacturer (fixed), multiple cut-off frequency options to choose from (selectable), or have the capability for the frequency to be configured by the user (variable).)
    • High-Pass Crossover: None (Devices with this function allow only audio frequencies above a chosen cut-off frequency to pass through to a speaker or sound system. A device may have a cut-off frequency predetermined by its manufacturer (fixed), multiple cut-off frequency options to choose from (selectable), or have the capability for the frequency to be configured by the user (variable).)
    • Speaker-Level Inputs: true (Also referred to as high-level inputs. Enables the amplifier to receive a sound signal from another device that does not have RCA, or low-level, inputs.)
  • General
    • Brand: Alpine
    • Model Number: MRX-M55
    • Product Name: X-Power Series Class D Digital Mono MOSFET Amp with Variable Low-Pass Filter
    • Color: Black
  • Audio Power
    • Amplifier Class: D (An amplifier's mode of operation, specifically the conditions in which its electrical current flows for the duration of an audio signal, determines its class. Each class has its strengths and weaknesses when it comes to power efficiency, levels of crossover distortion, and overall sound quality.)
  • Audio
    • Number Of Channels: 1
    • Signal-to-Noise Ratio (SNR): 114 decibels (The ratio of the desired signal's strength to the level of background noise. A ratio higher than 1:1, which equates to greater than 0 decibels, indicates more signal than noise.)
    • Bass Boost: None (Circuitry that boosts the bass response of the amplifier, improving audio reproduction enhancing the sound of low frequencies. Fixed boost means the level of bass response is preset, whereas variable boost allows the user to make adjustments.)
  • Features
    • Low-Pass Crossover: Variable (Devices with this function allow only audio frequencies below a chosen cut-off frequency to pass through to a speaker or sound system. A device may have a cut-off frequency predetermined by its manufacturer (fixed), multiple cut-off frequency options to choose from (selectable), or have the capability for the frequency to be configured by the user (variable).)
    • High-Pass Crossover: None (Devices with this function allow only audio frequencies above a chosen cut-off frequency to pass through to a speaker or sound system. A device may have a cut-off frequency predetermined by its manufacturer (fixed), multiple cut-off frequency options to choose from (selectable), or have the capability for the frequency to be configured by the user (variable).)
    • MOSFET Power Supply: true (A specific type of power supply with the advantages of high switching speed and efficiency at low voltages.)
  • Input
    • Line-Level Inputs: true (Also referred to as low-level inputs. Enables the amplifier to receive a sound signal from another device via RCA cables.)
    • Speaker-Level Inputs: true (Also referred to as high-level inputs. Enables the amplifier to receive a sound signal from another device that does not have RCA, or low-level, inputs.)
  • Dimensions
    • Product Height: 2.25 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 9.88 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 9 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 5.5 pounds (The out of box weight of the item.)
  • Warranty
    • Warranty - Parts: 1 year limited
    • Warranty - Labor: 1 year limited
  • Other
    • UPC: 793276011756

Upgrade your vehicle's sound system with this Alpine X-Power Series MRX-M55 Class D amplifier that features PDX technology and global modulation circuitry for optimal performance. The 4-channel nonfading speaker input ensures easy connection.

  • Handles up to 1100W maximum power: For powerful sound. Up to 350W RMS x 1 @ 4 ohms, 550W RMS x 1 @ 2 ohms and 400W RMS x 1 @ 1 ohm.
  • Low-pass and subsonic filters: Ensure flexible operation.
  • 4-, 2- and 1-ohm impedances: Conduct power to keep speakers working at optimal levels.
  • PDX technology: Delivers quality performance.
  • Global modulation: With adaptive feedback control loop circuitry ensures clean, clear, powerful sound with minimal distortion.
  • Multistage power management circuitry: Continuously monitors critical component temperatures and decreases power when needed to promote an uninterrupted listening experience.
  • Overcurrent, overvoltage and thermal protection: Help keep the amplifier operating smoothly.
  • Top-mounted blue LED power indicator: Lets you know if the amplifier is working properly.
  • Voltage sensing: Automatically turns the amplifier on when voltage is detected.
  • 4-channel nonfading speaker input: Enables quick and easy connection with your factory-installed system. Buffered preamp output allows for easy integration with other amplifiers (not included).
  • Handles up to 1100W maximum power: For powerful sound. Up to 350W RMS x 1 @ 4 ohms, 550W RMS x 1 @ 2 ohms and 400W RMS x 1 @ 1 ohm.
  • Low-pass and subsonic filters: Ensure flexible operation.
  • 4-, 2- and 1-ohm impedances: Conduct power to keep speakers working at optimal levels.
  • PDX technology: Delivers quality performance.
  • Global modulation: With adaptive feedback control loop circuitry ensures clean, clear, powerful sound with minimal distortion.
  • Multistage power management circuitry: Continuously monitors critical component temperatures and decreases power when needed to promote an uninterrupted listening experience.
  • Overcurrent, overvoltage and thermal protection: Help keep the amplifier operating smoothly.
  • Top-mounted blue LED power indicator: Lets you know if the amplifier is working properly.
  • Voltage sensing: Automatically turns the amplifier on when voltage is detected.
  • 4-channel nonfading speaker input: Enables quick and easy connection with your factory-installed system. Buffered preamp output allows for easy integration with other amplifiers (not included).
Whats Included
  • Alpine X-Power Series Class D Digital Mono MOSFET Amp with Variable Low-Pass Filter
  • Owner's manual
  • Alpine X-Power Series Class D Digital Mono MOSFET Amp with Variable Low-Pass Filter
  • Owner's manual

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