Hertz ML Power 4
4-channel car amplifier — 120 watts RMS x 4
Enjoy a complimentary $75 Installation credit on all Online Orders. Limit one per customer. Terms and Conditions apply.
Need Help?
Hertz ML Power 4 Mille Power Series 4-Channel 250W RMS x 4 at 2 Ohm, Class-D Car Amplifier
The Hertz ML Power 4 amplifier is built to deliver exceptional sound clarity, high efficiency, and rock-solid reliability. Designed as part of the Mille Power Series, it perfectly complements Mille speakers, offering pure listening pleasure with advanced ADC technology and compact yet powerful construction. This amplifier pushes 4 × 250 W at 2 Ω, ensuring premium audio performance while maintaining stability and low distortion for even the most demanding setups.
Engineered with cutting-edge innovation, the ML Power 4 features a unique double technology heat sink combining extrusion and aluminum die-casting. This ensures optimal thermal efficiency and continuous full-power operation without the risk of overheating—ideal for high-performance car audio systems that demand reliability under pressure.
The amplifier’s design allows flexible system configurations, supporting 4-, 3-, or 2-channel modes. It delivers crystal-clear sound with an ultra-low 0.08% distortion rate, wide frequency response from 5 to 55 kHz, and a high signal-to-noise ratio of 100 dB. Its real-time LED monitoring system provides instant visual feedback on performance and protection status, ensuring your setup runs flawlessly at all times.
Key Features
– 4-Channel Class D amplifier delivering 4 × 250 W at 2 Ω
– Advanced ADC technology for enhanced audio precision and efficiency
– Supports 4-, 3-, or 2-channel configurations for versatile system setups
– Ultra-low distortion (0.08%) and wide 5–55 kHz frequency response
– High signal-to-noise ratio (100 dB) and damping factor of 80 for superior sound control
– Double technology heat sink (extrusion + die-cast aluminum) for optimal cooling and continuous operation
– Real-time LED monitoring system for instant fault and temperature detection
– Pre-In and Speaker-In inputs with adjustable sensitivity and impedance matching
– Compact dimensions (6.69 × 11.38 × 1.84 in) ideal for efficient installations
– Includes 4 × 40A ATO fuses (2 pre-installed), 4 × 1" mounting screws, warranty card, and owner’s manual
What's Inside?
- 4-Channel Car Amplifier
- (4) 40A ATO fuses (2 installed)
- (4) 1" self-tapping screws
- Warranty card
What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.