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Willie Greer - September 13, 2021
Just think about the sheer power a 4000-watt amp can do for your car audio system. The risk is that not all amps are built to truly provide that amount of power. Our audio experts have thoroughly tested the products below to make sure what you see is what you get with the top 4000-watt amp models.
Audio Salt-4
- 4000 watts at RMS
- New heat sink design
- LED status lights
- Protection mode
VIBE432.5
- Subwoofer bass control
- LED indicators
- Advanced protection circuitry
- MOSFET power
RVA-M3
- Metal bass remote
- Class D amp
- MOSFET power supply
- Adjustable crossover
Reviews of the Top 4000-Watt Amps
Lanzar VIBE432.5
The futuristic-looking Lanzar VIBE432.5 is a 4000-watt amp that is capable of high power. The advanced technology of the car amplifier allows for DC to DC switching power for more headroom.
The sound quality from your new amp is excellent. The protection circuitry, which includes overload and speaker short protection will make sure the car amplifier is never damaged or overworked. To make sure you get uncompromised audio, Lanzar equips the VIBE432.5 with silver RCA connectors and screw-down terminals for a secure connection.
You can also daisy chain the VIBE with other amps thanks to the RCA jacks.
What We Like
- Advanced power switching
- 4-channel 4000-watt power rating
- Protection mode
- Uncompromised sound
- MOSFET power
- Connects via RCA
- Advanced protection circuitry
- Subwoofer bass control
What We Don’t Like
- Not a mono amp
- Better for a full setup
Sundown Audio Salt-4
The Sundown Audio Salt-4 is a very pricey amp, but for the power output you’re getting, the price is warranted. The mono amp outputs 4000w at 1 ohm, which means the peak power is even more impressive.
The class D technology amplifier features a new heat sink, which will further regulate high temperatures over long hours of playing so the unit runs cool. The amp also features protection mode, which will be clearly indicated via the LED status lights.
To improve the sound quality, the mono amp has a variable low pass filter, subsonic filter, phase shift, and bass boost.
What We Like
- Variable low pass filter
- Subsonic filter
- Monoblock 4000w RMS amp
- Bass boost
- LED lights
- Digital class D
- 1-ohm stable
- 2000 watts RMS at 2 ohms
- 1000 watts RMS at 4 ohms
- 90dB signal to noise ratio
- 4-way protection mode
- Wired remote
What We Don’t Like
- Expensive price
- Requires strong electrical current
Rockville RVA-M3
The Rockville RVA-M3 is the best 4000-watt unit our sonic experts recommend for people on a budget. For an affordable price, you can get a good frequency response and high power ratings. The 4000 watts is the max output but the RMS is also impressive at 1000w.
The RVA-M3 is CEA certified [1] to produce the power it claims. The acoustic quality will not be compromised at high level volumes or power output at 2 ohms or 4 ohms. You get class D tech for efficiency coupled with MOSFET power that works with your speakers seamlessly.
What We Like
- High power ratings
- 1-channel mono amp
- Wide frequency range
- Features MOSFET power supply
- Bass equalizer
- LED indicator
- High and low voltage protection
- Aluminum heat sink
What We Don’t Like
- May need a converter for remote wire
- No bass knob
BOSS Audio OX4KD
Our team’s last recommendation is the Boss Audio OX4KD. Capable of 4000 watts at max power, the OX4KD won’t overheat due to the class D tech and efficient heat sink. The reliable car amp is 1-ohm stable and is able to work with another one of its kind to boost the current even more.
One of the best things about Boss Audio is it adds a 6-year warranty to most of their products, the OX4KD included. There are high and low level inputs to connect the amp to the rest of your system with a variable low pass crossover to make sure the right frequencies go through.
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What We Like
- Alexa built-in
- Adaptive Sound Technology
- Q-Symphony
- Dolby Atmos and DTS:X
- 9.1.4 channels
- True surround sound
- Bluetooth and Wi-Fi connection
What We Don’t Like
- Can be long for some
- May need professional installation
4000W Amps Buyer’s Guide
Power
Our team members stress the importance of the RMS rating (root mean square) as opposed to the max output for the best 4000-watt amps. The root mean square is the level at which you can play your amp and speakers over a long period, while the peak is for short bursts.
Pay attention to the 4000-watt rating and whether it’s the root mean square or the max capability of the amplifiers.
Channels
How many channels you need depends on how many speakers and subs you want to connect to your amplifier. The figures should be the same. For example, if you just want to give your subwoofer a boost, then you will only need a monoblock amp.
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Amp Class
You will most often find class D and AB amps for cars. Our experts say class Ds are the most efficient and have a smaller footprint while ABs are larger but have more accurate sound.
Our Top Pick For a 4000-Watt Amp:
Lanzar VIBE432.5
The best 4000-watt amp is definitely the Lanzar VIBE432.5. Our engineers were impressed by the output, build and features included such as protection modes, silver inputs, RCA line out jacks and pulse width modulated MOSFET. Not only will you experience sonic elevation, but the overall look of the Lanzar amp is also a plus.
For more options, you can check out the list below:
