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JBL - Marine 1800W Class AB Bridgeable Multichannel Amplifier with Variable Crossovers - White/Black

Model: MA4505
SKU: 6366255
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  • Key Specs
    • Continuous Watts x Channel @ Ohms: 500 x 1 x 2 (sub), 320 x 1 x 4 (sub), 65 x 4 x 2 (full-range), 45 x 4 x 4 (full-range), 130 x 2 x 4 (bridged)
    • Amplifier Class: AB (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: 5
    • Bass Boost: Variable (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.)
    • Bridgeable: true (Bridging an amplifier increases the power it supplies to the speaker(s).)
    • 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: Variable (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: JBL
    • Model Number: MA4505
    • Product Name: Marine 1800W Class AB Bridgeable Multichannel Amplifier with Variable Crossovers
    • Color: White/Black
  • Audio Power
    • Continuous Watts x Channel @ Ohms: 500 x 1 x 2 (sub), 320 x 1 x 4 (sub), 65 x 4 x 2 (full-range), 45 x 4 x 4 (full-range), 130 x 2 x 4 (bridged)
    • Total Power Handling Maximum: 1800 watts
    • Amplifier Class: AB (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: 5
    • Minimum Frequency Response: 10 hertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The minimum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Maximum Frequency Response: 40 kilohertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The maximum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Total Harmonic Distortion: 1 percent (Measurement of the harmonic sound distortion. The lower the percentage, the cleaner the sound.)
    • Signal-to-Noise Ratio (SNR): 80 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: Variable (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
    • Bridgeable: true (Bridging an amplifier increases the power it supplies to the speaker(s).)
    • 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: Variable (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).)
    • Marine: true
  • Input
    • 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: 2.38 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: 15.8 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: 7.5 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: 9.08 pounds (The out of box weight of the item.)
  • Warranty
    • Warranty - Parts: 1 year
    • Warranty - Labor: 1 year
  • Other
    • UPC: 050036346337

Enjoy dynamic sound with this five-channel JBL Marine amplifier. The 80dB signal-to-noise ratio delivers crisp, clear audio, and the compact size allows for easy transport and flexible installation. This white JBL Marine amplifier has weather-resistant construction that protects against harsh elements for long-lasting durability, and the simple interface ensures easy volume control.

  • Compact weather-resistant chassis: The slim chassis and a small footprint allow for installation in tight spaces.
  • High- and low-level inputs: Speaker-level and low-level inputs let this amplifier integrate with most audio inputs.
  • Conformal-coated PCB: Engineered to withstand harsh marine conditions.
  • Class AB circuitry: Offers reliable power handling.
  • Variable crossovers: Features selectable all-, high-, or low-pass crossovers with variable electronic frequency adjustment to allow for fine-tuning multiple system configurations.
  • 4-ohm impedance: Conducts power evenly to keep the speaker at an appropriate level.
  • Big dynamic power: Handles up to 320W RMS continuous at 4 ohms or 500W RMS at 2 ohms (subwoofer); up to 180W RMS continuous (45W x 4) at 4 ohms or 260W RMS (65W x 4) at 2 ohms (full-range); up to 260W RMS continuous (130W x 2) at 4 ohms (bridged, full range).
Whats Included
  • JBL Marine 1800W Class AB Bridgeable Multichannel Amplifier with Variable Crossovers
  • High-level input wiring harness
  • Two spare fuses
  • Two 2-color brand stickers
  • Owner's manual

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