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MB Quart NAU 460

360W Max, Nautic Series 4-Channel Marine Amplifier

MB Quart
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Nautic Series 4-Channel Class A/B Marine Amplifier • UV And Salt Water Resistant • 60W x 4 Chan. @ 4 Ohms • 90W x 4 Chan. @ 2 Ohms • Full Range Line Outputs • 4-Way System Protection • Gold-Plated RCA Level Inputs

Learn more about the nau460

We apologize

This item has been discontinued

Description


MB Quart brand icon

Authorized dealer

Seafaring Power

For those who have been involved with car audio in the last few year, you will recognize the name MB Quart. MB Quart has been a leading car audio company for many years and now the experience and quality of MB Quart has found its way to marine audio. One of the best way to improve your audio system is by upgrading your speakers. However upgraded speakers usually need a higher source of power to function correctly, enter MB Qaurt's NAU 460 4-channel Nautic series marine amplifier. This amplifier is perfect for anyone looking to amplify a set or two of speakers or even some entry level subwoofers at the bridged impedance. Equipped with UV and salt water resistant paint, silk screen, and heat sink enclosure will improve the life span of this amplifier by protecting it from any weather conditions. The non-corrosive aluminum casing will keep your amplifier looking nice for years to come. Variable high and low pass crossovers will give you complete control of all frequencies to better tune your system to your personal preferences. The amplifier conforms to the American Boat and Yacht Council(ABYC) marine electronic standards giving you a safe and reliable product. So if you are looking to amplify your audio system to get the best sound possible, then look no further than the MB Quart NAU 460 4-channel amplifier.

  • Nautic Series 4-Channel Class A/B Marine Amplifier
  • RMS Power Rating:
    • 4 ohms: 60 watts x 4 chan.
    • 2 ohms: 90 watts x 4 chan.
    • Bridged, 4 ohms: 180 watts x 2 chan.
  • MOSFET PWM power supply
  • UV and salt water resistant paint, silk screen and heat sink enclosure
  • Marine-grade conformal coated circuit boards resist corrosion from salt spray and moisture
  • Non-corrosive brushed aluminum casing
  • Conforms to the American Boat and Yacht Council (ABYC) marine electronic standards
  • LED power and protect indicators
  • Bass Boost (0-6 dB bass boost at 45 Hz)
  • 2/1 channel operation
  • Full range line outputs
  • 4-Way system protection circuitry (DC, short, thermal, overload)
  • Heavy duty aluminum alloy heatsink
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Variable high-pass filter (40-250 Hz)
  • Variable low-pass filter (40-250 Hz)
  • Variable frequency: 40-250 Hz
  • Variable input level control (0.2V-6V)
  • Damping Factor: 180
  • Dimensions: 12-5/8"L x 9-1/2"W x 2-1/8"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year SonicElectronix.com warranty

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
60 watts x 4 channel
RMS Power @ 2 ohms
90 watts x 4 channel
Bridged RMS Power
180 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
4-Channel
Total RMS Power Output
360 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohms
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
.05%
Speaker Level Inputs
No
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
40 - 250 Hz
Low-Pass Crossover Frequency
40 - 250 Hz
Signal-to-Noise Ratio
93 dB
Channel Separation
80 dB
Bass Boost
0 - 6 dB
Remote bass/level controller
No
Fuse Rating
25A x 2 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

NAU460

Weight:

10.00lbs

Internal SKU:

nau460

Internal Product ID:

17758

Customer Ratings & Reviews



5 star
86%
4 star
9%
3 star
0%
2 star
5%
1 star
0%



Durability
4.5
Value
5
Features
4.7
Design
4.8
Usability
4.8

Customer Reviews

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mb quart nau 460

Excellent sound and volume, replaced my failed amp on my 20ft center console Triumph boat. Better clarity and volume, for less money than my original amp.

By Roy on November 8, 2012

13

found this helpful.

Great Value!

Purchased this 6 months ago for my pontoon. With the assistance of my helpful Sonic Elec. rep I went with the Clarion deck, 2 MB quart marine amps, 2 pair of MB Quart 6.5's & 2 - 10" MB quart subs... this baby jams. No issues thus far, very happy with my purchase.

By Dan on October 11, 2012

14

found this helpful.

Great amp!

I have only had the amp for a few months but it sounds and performs great. I don't know why anyone would spend 2-3 times as much on other amps that are rated the same.

By JCB2 on November 3, 2011

13

found this helpful.

Decent amp

Used in a car running 4 mb quart speakers, although this is a marine amplifier. Performed fine, no overheating problems.

By jak on June 30, 2011

13

found this helpful.

Great amp at a great price

I have a 26 foot Sea Ray bowrider and installed two of these amps with Polk db series speakers. I replaced the crap stock clarion amps and speakers that only lasted 3 years. I LOVE THIS AMP!! Its sounds great with the Polk's. Don't be scared by the price.

By Jason H on November 6, 2010

13

found this helpful.

Great product!

I purchased two of them to use as an amp for my door mid's and highs in two different vehicles. They work awesome. A great amp,no distortion or clipping. Tried to use it bridged for a 12" infinity but got shut off on thermal after 20 minutes of excision. All and all a great amp would recommend to anyone. great product!

By Keith on September 10, 2012

12

found this helpful.

Review of the MB Quart NAU 460

I bought this amp b/c it was a good brand, with great reviews and perfect for the application. It fit perfectly in the space it was bought for and supplies awesome power to the JL Audio MX 650's.

It saw heavy use right after it was installed and powered up. It hasn't overheated or had any issues at all. To say I am happy with this amp is an understatement. So far, it has been flawless. I'll see how it did being outside all winter and how it handles being heavily used on the boat this season.

By Nick on December 30, 2011

12

found this helpful.

Offshorerafting.com

I would recommend the MBquart marine amp because it delivered even better power then my JBL. It's a great value as it's low price compared to many other marine amps. Go for it you will be happy you did, then crank it up!

By Offshore Rafting on April 2, 2012

11

found this helpful.

So far so good

Bought the NAU 460 to replace a Jensen 760 amp in my 20 foot runabout boat. The Jensen died about 2 months after its one-year warranty! The NAU 460 appears well built and sounds very good for its price. It survived its first summer boating season, which is when it's driven in 90+ ambient temps and humid (but minimal direct water contact) conditions. The only reason I am giving it only 4 stars for overall and durability is that I've only had it for 6 months so far. We'll see how long this one lasts.

By acwisn on January 19, 2012

12

found this helpful.

nau460, quality value..

Basically purchased the NAU460 with the advice from a friend. The amp has worked perfectly. If I need another one some day, I will most certainly purchase another one of these!!!

By tbrat44 on January 14, 2012

12

found this helpful.

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