MB Quart Marine NAU460 240-Watt A/B-Class 4-Channel Amplifier Review
MB Quart Marine NAU460 240-Watt A/B-Class 4-Channel Amplifier Feature
- MOSFET marine amplifier Micro Class A/B amplifier topology delivers 4 x 60 Watts @ 4 Ohms, 4 x 90 Watts @ 2 Ohms, 2 x 180 Watts @ 4 Ohms
- Designed to conform to ABYC marine electronic standards with gold-plated power, ground, speaker and RCA corrosion resistant connections
- High-end features such as fully adjustable crossovers including High Pass, Low Pass, Full Pass, Bass EQ and built-in diagnostics with visual indicators
- 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
- Features Line Outputs for daisy-chaining additional amps without the need for Y-cable adapters
MB Quart's Nautic line of amplifiers use extreme speed processors, resulting in overall low distortion, for stable, reliable, and audible sound performance while conforming to marine electrical standards. The NUA460 delivers 400 watts maximum power, and can be set up for four-, three-, or two-channel applications.
Class A/B MOSFET Amplification
The NUA460 boasts Micro Class A/B amplifier topology for lower distortion, complete with a PWM power supply for solid power regulation, and high speed MOSFET output devices for excellent sound reproduction.
Gold-Plated Connections
The NUA460 features gold-plated power, ground, speaker and RCA connections, for resisting corrosion and delivering a clean signal.
High- and Low-Pass Filters
Dial in the output as appropriate for your system with adjustable hi-pass and lo-pass crossovers, both from 40-250Hz.
Ready for the Marine Environment
Marine gear has an even tougher environment than its automaobile counterpart. To that end, the NUA460's heat sink enclosure, paint, and silk screening are UV and salt water resistant. Marine-grade conformal coated circuit boards are used to resist corrosion from salt spray and moisture. Finally, a non-corrosive brushed aluminum extrusion provides an attractive and durable surface finish.
ABYC Compliant
The American Boat and Yacht Council (ABYC) is a trade organization who set forth voluntary standards for all aspects of boat design and construction. The NUA460 is designed to conform to the group's marine electronic standards.
About MB Quart
Bring the luxuries of home to the open water with German-engineered MB Quart marine audio visual equipment. Founded more than 50 years ago in Obrigheim, Germany, MB Quart has integrated high acoustical clarity, easy-to-use designs and sleek products to evolve into the premier manufacturer of entry-level to high performance marine audio visual systems. In an industry where only the strongest survive, MB Quart established itself early by producing world-class automobile and home audio visual equipment. Rain, nor saltwater or even extreme temperatures will destroy MB Quart products, as each one has already survived stringent tests, replicating years of operation.
NAU460 Select Specifications
| Power Rating: | 4 x 120 watts at 4 ohm peak (4 x 60 watts RMS) 4 x 200 watts at 2 ohm peak (4 x 100 watts RMS) 2 x 400 watts at 4 ohms bridged peak (2 x 200 watts RMS) |
| T.H.D: | < 0.05% |
| S/N Ratio: | 93dB |
| Input Sensitivity Range: | 0.2V to 6.0V |
| Channel Separation: | 80dB |
| Crossover Frequency (High- and Low-Pass: | 40 - 250Hz |
| Fuse: | 25A x 2 |
| Dimensions: | 13.5 x 9.76 x 2.6 Inches (L x W x H) |
What's in the Box
MB Quart Marine NAU460 180 Watt A/B Class 4-Channel Amplifier, Installation Hardware, Documentation
4 x 60 W @ 4 Ohms, 4 x 90 W @ 2 Ohms, 2 x 180 W @ 4 Ohms. Founded in the early 60's in Obrigheim, Germany, MB Quart is known worldwide for designing and manufacturing innovative and technically advanced audio products. From car, marine and home loudspeakers, amplifiers and subwoofers, MB Quart products exemplify "German Engineering." The Nautic line of amplifiers use extreme speed processors resulting in overall low-distortion for stable reliable and excellent sound performance while conforming to marine electrical standards. MB Quart most recently revolutionized the mobile loudspeaker industry with WideSphere technology that emits extra-wide sound dispersion to listeners in order to enjoy the full range of music from almost any seating position in a vehicle. Audio and marine systems are put through stringent tests under the most extreme environmental conditions. Decades of refinement with meticulous attention to detail and tolerances in hand-built components have earned MB Quart a distinguished reputation for quality manufacturing, unmatched reliability and extraordinary performance. Praised by countless world-wide audio press awards and critical listeners around the world, MB Quart brings extraordinary engineering expertise, experience and design philosophy to a truly global Maxxsonics brand. Parent company, Maxxsonics USA, offers decades of combined experience and distinction with four brands MB QUART, Hifonics, Autotek and Crunch. We independently support and maintain these best-in-class brands to bring you some of the biggest, baddest and coolest products in the car, marine and home audio industry. Maxxsonics designers and engineers take great care and satisfaction in producing only the finest quality products to exceed your needs. Look for the stylized blue "M" on your product and packaging. It stands for quality, performance and power you can only get from Maxxsonics.
