Wide Open Sound · Curated gear
MB Quart Marine amplifier NA540.6
WOS Pick What this amp does in 10 seconds — expand for full specs.
- BrandMB Quart
- SKUNA540.6
- Channels6
- ClassAB
Mei says"Match this amp to your speakers and sub. Wrong power or wiring = weak system — do it once, do it right."
The stuff you'll actually notice
- 6-channel platform.
Product description
MB Quart NA540.6 6-Channel Nautical Series Class A/B Marine Amplifier 540 Watts
We are a MB Quart authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
What's Inside?
•Marine Amplifier
• Owner's Manual
Withstand Moisture and Corrosion
Battle tested to withstand moisture and corrosion from salt and fresh water spray. Maintain high quality sound and full power to your speakers through any weather. Ideal for the outdoors. The perfect addition to your Boat, ATV or RV this proven waterproof, dustproof, snow proof & shockproof amp will always perform at its best.
Long-lasting High-quality Experience
With the freedom to choose, you can select which channel fits your system best and reduce heat in channel B or leave it in A for a long-lasting high-quality experience. The built-in fluid-fets technology efficiently produces power & mimics the high sound quality of the highest-end home amps. Giving you the most powerful audio, no matter where you are.
SPECIFICATIONS
Maximum Power : 540 Watts
Number of Channels : 6
Built In Crossovers : Yes
Channel Separation : Yes
Amplifier Class : A/B
Fuse Rating : 70 A
FEATURES
Features:
Marine Grade Performance - Battle tested to withstand moisture and corrosion from salt and fresh water spray. Maintain high quality sound and full power to your speakers through any weather.
Built for Powerful Sound - Ideal for the outdoors. The perfect addition to your Boat, ATV or RV this proven waterproof, dustproof, snow proof & shockproof amp will always perform at its best.
Class A/B Channel Options - With the freedom to choose, you can select which channel fits your system best and reduce heat in channel B or leave it in A for a long-lasting high-quality experience.
Smooth and Powerful Sound - The built-in fluid-fets technology efficiently produces power & mimics the high sound quality of the highest-end home amps. Giving you the most powerful audio, no matter where you are.
Tone Control - Listen how you want, with your own built-in equalization with variable frequency adjustment you can tune your amp to fit your vehicle perfectly. Feel the power of the amp to its fullest.
Specifications:
Power @ 1-ohm N/a
Power @ 2-ohms 6 X 90 Watts
Power @ 4-ohms 6 X 60 Watts
Mono Bridged @ 4-ohms 3 X 180 Watts
Total Channels 6
Audio Inputs Rca
Audio Outputs Full Range Rca
Wire Gauge 12v/gnd 4-ga
Wire Gauge Speakers 10-ga
Fusing 70 Amps
Weight 11.1 Lbs (5.03 Kilos)
Dimensions 17.01" X 9.4" X 2.2" (43.4 23.8 X 5.58cm)
Nautical Series 6-Channel Class SQ Car Amplifier
RMS Power Rating:
4 ohms: 60 watts x 6 chan.
2 ohms: 90 watts x 6 chan.
Bridged, 4 ohms: 180 watts x 3 chan.
Pulse Width Modulated MOSFET power supply
LED power (green) and protect (red) indicators
Variable Bass Boost (0 to +9 dB bass boost at 45 Hz)
Soft start turn-on
6/5/4/3/2 or Mono channel operation
Preamp RCA outputs to daisy chain multiple amps
3-way protection circuitry (thermal, overload, and speaker short protection)
Heavy duty aluminum alloy heat-sink
Input sensitivity:
Level: 200mV-6V
Variable high-pass filter (250-4000 Hz)
Variable low-pass filter (40-250 Hz)
UPC: 806576221906
Weight: 12
Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.
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Power breakdown
Inputs, filters & control
Build, wiring & install
Protection & performance
Full specifications
| Amp Class | AB |
|---|---|
| Amp Channels | 6 |
| Basic Marine Grade | Marine Grade |
|---|---|
| Water Rating | Waterproof |
Support & warranty
Need help choosing or installing?
We build indestructible, IP-rated systems for marine, motorcycle, UTV, and automotive. If you want a matched setup, we’ll guide you to the right gear the first time.
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