Condition: BRAND NEW IN ORIGINAL PACKAGING

Warranty: 1 YEAR MANUFACTURER

What's in the Box:

• Amplifier
  
• Owner's Manual
  

Description:

Four channel Nautic waterproof amplifier with marine specific connectors. Top mounted sound contouring with onboard crossovers, bass boost and adjustable input sensitivity all concealed behind top mounted controls.

AUDIOPHILE MARINE STANDARDS
Nautic amplifiers are not automotive amplifiers. While they will work just fine in a car or truck, however, they are purpose built to very strict standards set forth for marine electronics by the American Society for Testing and Materials, ASTM International™ and NMMA.

NMMA CERTIFIED
National Marine Manufacturers Association (NMMA) is a voluntary consortium of global boat manufacturers that set standards for marine products, from boat building to the accessories installed in them. In terms of marine audio amplifiers, NMMA defines the safety requirements which means that your MB Quart marine amplifiers are held to a higher standard that typical audio products for delivering power from the electrical system, through the PC board to the speakers and subwoofers.

CONTROL & EXPANSION
Sound contouring with onboard crossovers, bass boost and adjustable input sensitivity are all concealed behind top mounted controls. All of this control will allow you or the installer to fine tune the system using a myriad of variable frequency adjustments along with level controls within the EQ range and Bass EQ active at 45Hz while in LP/BP operation.

Nautic amplifiers are available in 4, 5 and a 6 channel configurations so you can drive speakers on the deck or in the cabin and have plenty of power for subwoofer channels. With the MB Quart source units and Bluetooth controllers it is possible to have better audio experience on the water, the solution has always been Nautic from MB Quart.

Features:

Marine Grade Protection

• Meets or exceeds IPX standards for waterproof and dustproof
  

Low Noise Preamplifier Circuit

• Q-Stasis Pre Amplifier Stage: Maximum low voltage signal from the source unit comes into the amplifier circuit with minimal distortion
  

RCA Inputs

• Prewired to PC Board for additional protection. Leave connector cover closed on RCA jacks that are not used
  

High Level Inputs

• See Auto-Sense Feature
  

Operation Mode

• 2 / 4 Channel
  

Crossover Type

• Variable electronic crossovers allow for complete control of the sound
  

Electronic Equalizer

• Control of amplifier output with on-board electronic crossover to tailor specific frequencies to speakers and subwoofers. 
  
• Check specifications for specific frequencies for this amplifier
  

Class / Topology

• Class SQ
  
• Multi-channel amplifiers utilize the unique MB Quart Class SQ topology. Matched with Q-Stasis the sonic accuracy and clarity exceeds standard Class A/B amplifiers.
  

Output Device Technology

• FLUID-FETS MB Quart output devices, FLUID-FETS are painstakingly selected for their ability to efficiently produce power and mimic the sound quality of the highest end home amplifiers.
  

Heat Sink

• Nautic gloss white epoxy finish helps reject heat on the surface of the amplifier
  
• Heavy duty heat-sink efficiently moves heat from the MOSFET where it can be cooled
  

Power Supply

• Robust marine grade MOSFET Pulse Width Modulation power supply 
  
• Allows amplifier to product efficient power without taxing the boats electrical system
  

Output Connections

• Connection from amplifier are sealed and grommeted
  

LED System Protection Circuit Diagnostics

• Monitor overload and speaker short protection with illuminated indicators on the amplifier end panel
  

Auto Turn-On

• DC SIGNAL SENSE: The DC SIGNAL SENSE switch will allow the amp to turn on when a signal is received on the RCA inputs, so an amplifier remote turn on wire is not needed to turn on the amplifier. This feature can also be turned off.
  

SMT Inside

• With Surface Mount Technology the typical "through-hole" placement and the larger tolerances from human placement is dramatically improved. In addition, circuit engineers can design better circuits for power and sound quality as the tolerances of SMT components are superior to larger "through-hole" components. 
  
• Because of their lower mass SMT components withstand shock and vibration making them perfect for audio designed for all vehicles.
  

Specification:

• Class: Class SQ (Class A/B)
  
• Total Channels: 4
  
• Power @ 2 Ohms: 4 X 140
  
• Power @ 4 Ohms: 4 X 70
  
• Crossover: Electronic
  
• Variable High Pass Crossover 12dB per Octave: Switched HPF / FULL / LPF 50Hz - 250Hz
  
• Bass Boost: 0-9dB
  
• Variable Voltage: .02 - 9V
  
• Signal to Noise: >90
  
• Frequency Response: 10Hz-45KHz
  
• Total Harmonic Distortion (THD): <0.2%
  
• Power Terminal 12v/GND: 10 awg
  
• Speaker Terminal Wire Gauge: 12 awg
  
• IPX Rating: IPX Rated for water resistance
  
• Warranty: 1 Year
  
• Product Packaging Weight (pounds): 6.7
  
• Product Packaging Dimensions (LxWxH): 20.38" X 7" X 3"
  

Prop 65 Warning
WARNING: This product can expose you to chemicals including LEAD, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

AudioSavings Return Policy:

At Audiosavings, we strongly believe in customer satisfaction and therefore offer free return shipping within 30 days of purchase on all items returned to us within the continental USA.

Prior to returning merchandise, contact us and we will give you a return authorization # and a return label.

You may return this item for a refund within 30 DAYS of purchase.

Warranty Repair/Exchange Period: 1 YEAR

If your item is defective or you want to return it for any reason within the first 30 days of when it was delivered to you; you have the following options:

• We will send you a pre-paid shipping label to replace the item for a brand new one.
• We will send you a pre-paid shipping label to exchange the item for another item of your choice. If the item you chose is more or less money we will work out the price difference with you.
• If you are returning a working item in used condition for a refund there will be a 20% used item fee deducted from your refund. All replacements and exchanges are free.

Replacement/Processing Time:

Your replacement or refund will process within 3-5 business days of when we receive the item.

Please note items with physical damage un-related to shipping are not covered under warranty. Registered software cannot be returned.

You MUST notify us within 48 hours if you receive an item that was damaged during shipping.

Process for returning items

Please email us with your eBay user ID, Item code / model #, Condition of the item, and the reason for your return. Please also indicate whether you would like a replacement, an exchange, or a refund. We will supply you with a reference number (RMA #) to put on the package which will ensure quick processing of your return. All returns require a RMA# to be returned back to our facility.