MB Quart - NA4-400.2RC Nautic 400 Watt Waterproof 2-Channel Amplifier 100x2 @ 4OHM, 200x2 @ 2OHM, (Polaris® RIDE COMM - Black/Gray
Specifications
- Amplifier ClassDNumber Of Channels2Bass BoostVariable
- 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: 2
- 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.)
- General
- Brand: MB Quart
- Model Number: NA4-400.2RC
- Product Name: MB Quart NA4-400.2RC Nautic 400 Watt Waterproof 2-Channel Amplifier 100x2 @ 4OHM, 200x2 @ 2OHM, (Polaris® RIDE COMM...
- Color: Black/Gray
- Audio Power
- Total Power Handling RMS: 100 watts
- Total Power Handling Maximum: 200 watts
- 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: 2
- 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
- Bluetooth Enabled: false (The device is capable of communicating with another device via Bluetooth, provided they are within the required range of each other. A Bluetooth-enabled device must also be the same Bluetooth version or higher than the accessory it is intended to pair with.)
- Marine: false
- Dimensions
- Product Height: 3.700 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: 1.770 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: 5.510 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: 2.2 pounds (The out of box weight of the item.)
- Warranty
- Warranty - Parts: 1-Year Manufacturer Warranty
- Warranty - Labor: None
- Other
- UPC: 806576238256
The MB Quart NA4-400.2RC Nautic is a compact 2-channel amplifier engineered for reliable performance in marine and powersports environments, with direct compatibility for Polaris® RIDE COMMAND® systems. Built around an efficient Class D design, it delivers up to 400 watts of total power while maintaining a small footprint that fits easily into tight installation areas. Durability is a core focus, with IP67-rated waterproof and dustproof protection and fully potted internals that seal critical components against moisture, vibration, and corrosion. This construction makes it well-suited for harsh outdoor conditions where traditional amplifiers would be vulnerable to failure. An aluminum heatsink further enhances reliability by efficiently dissipating heat during extended use. On the performance side, the amplifier features MB Quart’s Q-Stasis low-noise preamp circuit, which reduces incoming signal noise and improves overall clarity. With a frequency response of 80Hz to 20kHz and a signal-to-noise ratio greater than 105 dB, it is optimized for clean midrange and high-frequency reproduction. A fixed 80Hz high-pass crossover (12 dB/octave) simplifies setup while helping protect connected speakers. Installation is streamlined with quick-connect power, speaker, and RCA terminals, along with corrosion-resistant nickel-plated connections for long-term reliability. Integrated protection circuitry monitors thermal, overload, DC, and speaker short conditions, with LED indicators providing system status at a glance. Specifications Model: NA4-400.2RC Channels: 2 Amplifier Class: Class D (Full Range) Max Power: 400W Power @ 4 Ohms: 2 x 100W Power @ 2 Ohms: 2 x 200W Frequency Response: 80Hz – 20kHz Signal to Noise Ratio: >105 dB Total Harmonic Distortion (THD): 1.0% High Pass Crossover: Fixed 80Hz (12 dB/Octave) Input Sensitivity: 0.2V – 9V IP Rating: IP67 Fuse Rating: 30A x 1
- Key Feature: 2-channel Class D amplifier delivering 400W max power with 2 x 100W @ 4Ω and 2 x 200W @ 2Ω output
- Key Feature: IP67-rated waterproof and dustproof design with fully potted internals for marine and powersports durability
- Key Feature: Fixed 80Hz high-pass crossover with 12 dB/octave slope for optimized speaker protection and tuning
- Key Feature: 80Hz–20kHz frequency response with >105 dB signal-to-noise ratio for clean, mid/high-range audio performance
- Key Feature: Polaris® RIDE COMMAND® compatible with RCA inputs and 0.2V–9V input sensitivity for flexible integration
- Key Feature: 2-channel Class D amplifier delivering 400W max power with 2 x 100W @ 4Ω and 2 x 200W @ 2Ω output
- Key Feature: IP67-rated waterproof and dustproof design with fully potted internals for marine and powersports durability
- Key Feature: Fixed 80Hz high-pass crossover with 12 dB/octave slope for optimized speaker protection and tuning
- Key Feature: 80Hz–20kHz frequency response with >105 dB signal-to-noise ratio for clean, mid/high-range audio performance
- Key Feature: Polaris® RIDE COMMAND® compatible with RCA inputs and 0.2V–9V input sensitivity for flexible integration
- Key Feature: 2-channel Class D amplifier delivering 400W max power with 2 x 100W @ 4Ω and 2 x 200W @ 2Ω output
- Key Feature: IP67-rated waterproof and dustproof design with fully potted internals for marine and powersports durability
- Key Feature: Fixed 80Hz high-pass crossover with 12 dB/octave slope for optimized speaker protection and tuning
- Key Feature: 80Hz–20kHz frequency response with >105 dB signal-to-noise ratio for clean, mid/high-range audio performance
- Key Feature: Polaris® RIDE COMMAND® compatible with RCA inputs and 0.2V–9V input sensitivity for flexible integration
Whats Included
- MB Quart NA4-400.2RC Nautic 400 Watt Waterproof 2-Channel Amplifier 100x2 @ 4OHM, 200x2 @ 2OHM, (Polaris® RIDE COMMAND® Compatible).
- MB Quart NA4-400.2RC Nautic 400 Watt Waterproof 2-Channel Amplifier 100x2 @ 4OHM, 200x2 @ 2OHM, (Polaris® RIDE COMMAND® Compatible).
- MB Quart NA4-400.2RC Nautic 400 Watt Waterproof 2-Channel Amplifier 100x2 @ 4OHM, 200x2 @ 2OHM, (Polaris® RIDE COMMAND® Compatible).
Compare similar products
The MB Quart NA4-400.2RC Nautic is a compact 2-channel amplifier engineered for reliable performance in marine and powersports environments, with direct compatibility for Polaris® RIDE COMMAND® systems. Built around an efficient Class D design, it delivers up to 400 watts of total power while maintaining a small footprint that fits easily into tight installation areas. Durability is a core focus, with IP67-rated waterproof and dustproof protection and fully potted internals that seal critical components against moisture, vibration, and corrosion. This construction makes it well-suited for harsh outdoor conditions where traditional amplifiers would be vulnerable to failure. An aluminum heatsink further enhances reliability by efficiently dissipating heat during extended use. On the performance side, the amplifier features MB Quart’s Q-Stasis low-noise preamp circuit, which reduces incoming signal noise and improves overall clarity. With a frequency response of 80Hz to 20kHz and a signal-to-noise ratio greater than 105 dB, it is optimized for clean midrange and high-frequency reproduction. A fixed 80Hz high-pass crossover (12 dB/octave) simplifies setup while helping protect connected speakers. Installation is streamlined with quick-connect power, speaker, and RCA terminals, along with corrosion-resistant nickel-plated connections for long-term reliability. Integrated protection circuitry monitors thermal, overload, DC, and speaker short conditions, with LED indicators providing system status at a glance. Specifications Model: NA4-400.2RC Channels: 2 Amplifier Class: Class D (Full Range) Max Power: 400W Power @ 4 Ohms: 2 x 100W Power @ 2 Ohms: 2 x 200W Frequency Response: 80Hz – 20kHz Signal to Noise Ratio: >105 dB Total Harmonic Distortion (THD): 1.0% High Pass Crossover: Fixed 80Hz (12 dB/Octave) Input Sensitivity: 0.2V – 9V IP Rating: IP67 Fuse Rating: 30A x 1
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| Pros for MB Quart - NA4-400.2RC Nautic 400 Watt Waterproof 2-Channel Amplifier 100x2 @ 4OHM, 200x2 @ 2OHM, (Polaris® RIDE COMM - Black/Gray | |||
|---|---|---|---|
| There were no pros for this product— | Power, Sound Quality, Size, Ease of use, Price | Sound Quality, Power, Size, Installation Ease | Power, Sound Quality, Size, Ease of use, Bass |
| Cons for MB Quart - NA4-400.2RC Nautic 400 Watt Waterproof 2-Channel Amplifier 100x2 @ 4OHM, 200x2 @ 2OHM, (Polaris® RIDE COMM - Black/Gray | |||
| There were no cons for this product— | Heat | Heat Dissipation | Heat |
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