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NAUTIC
Installation Manual
Congratulations!
By purchasing an amplifier from MB Quart, you have decided on a product of the highest
technical quality. MB Quart wishes you great enjoyment with your amplifier. Should you
have any questions about this system or other MB Quart products, please email us at
info@maxxsonics.com
MB Quart has an incredible Marine amplifier lineup with 2, 4, 5 and 6 channel models
available. All NA models feature the following:
- American Boat and Yacht Council compliant Power and Speaker terminals.
- Gold plated Power and Speaker terminals.
- Marine Grade Conformal Coated circuit board to resist corrosion from salt
spray and moisture.
- Non-Corrosive Aluminum extrusion.
- UV and salt spray resistant silk screen and paint.
NA180.2 / NA360.4 / NA710.5 / NA540.6
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Summarization of Contents
INSTALLATION INSTRUCTIONS
General Instructions
Provides guidance on setting up the amplifier, including power, ground, and connection sequences.
Settings for Best Performance
Details on optimizing amplifier settings like crossovers, bass EQ, and level control for optimal sound.
TROUBLE SHOOTING
Diagnostic System
Explains the amplifier's diagnostic system, LED indicators, and fault identification steps.
Amplifier Overheating
Covers causes and solutions for amplifier heatsink overheating and shutdown.
Low Output Power
Troubleshooting steps for low audio output power, checking level controls and voltage.
Fuses Blowing
Addresses common reasons for fuse blowing, including impedance and short circuits.
System Not Turning On
Steps to diagnose why the amplifier or system fails to power on, checking fuses and connections.
Noise Problems
Discusses common noise issues like hiss, electrical interference, and engine-related noises.
NA180.2 2-Channel Amplifier
Features
Lists key features and specifications of the NA180.2 amplifier, including inputs and controls.
2 Channel Full Range Stereo Setup
Guide for connecting the amplifier for stereo full-range audio output using RCA cables.
Bridged for Subwoofer Application
Instructions for configuring the amplifier in bridged mode for subwoofers.
NA360.4 4-Channel Amplifiers
Features
Details the specifications and capabilities of the NA360.4 amplifier, including inputs and modes.
4 Channel Full Range Stereo Setup
Connects four channels for full-range stereo sound reproduction using two sets of RCAs.
2 or 3 Channel System Setup
Guide to configuring the 4-channel amp for 2 or 3 channel operation, including bridging.
NA710.5 5-Channel Amplifiers
Features
Outlines the features of the NA710.5 5-channel amplifier, including its multiple input sets.
5 Channel Discrete Operation
Setup for discrete operation of the 5 channels using three sets of RCA inputs.
Single Set of Stereo RCA's Setup
Connecting a single stereo RCA pair to all channels by using mode switch.
NA540.6 6-Channel Amplifiers
Features
Details the features of the NA540.6 6-channel amplifier, including its multiple inputs and modes.
6 Channel Full Range Stereo Setup
Guide for setting up 6 channels for full-range stereo output using three sets of RCAs.
5 Channel Operation Setup
Instructions for using the 6-channel amp in a 5-channel configuration, including bridging.
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