Chat
Contact us
Close contact box
Connect ID #
432 774 67
Connect ID #
432 774 67

Sorry, chat is currently unavailable

Don't wait on hold. We'll call you back when it's your turn to talk with the next available .
Please enter your name  
Please enter your phone number  
Please enter a message  

Calls may be recorded for training and quality control purposes.

We are located in Virginia USA.

Hertz Mille ML Power 4

4-channel car amplifier — 120 watts RMS x 4

Item # 301MLPOW4

Hertz's Mille ML Power 4 amp combines the versatility of a multi-channel amp with some serious full-range Class-D...

Find what Fits your vehicle

Remove

Checking fit...

Hertz's Mille ML Power 4 amp combines the versatility of a multi-channel amp with some serious full-range Class-D...

Item # 301MLPOW4

Ships from distributor

On backorder
C$849.99

Free lifetime tech support

Whenever you need a hand.

60-day returns

If you don't love it, send it back.

Car-specific installation packages

Deep discounts on the essential accessories that help your new gear work with your car.

About the Hertz Mille ML Power 4

Buck Pomerantz

For high-powered thrill-seekers

Hertz's Mille ML Power 4 amp combines the versatility of a multi-channel amp with some serious full-range Class-D firepower. This Mille Power Series 4-channel amp can send each of your front and rear speakers 120 watts RMS, which is the kind of power that makes high-performance aftermarket components sound their best. You could also use this amplifier in 3-channel mode to power your front speakers with 120 watts RMS each, while sending 500 watts RMS to a subwoofer. Or, with the amp in bridged 2-channel mode, you could power two subwoofers with 500 watts RMS each. 

For high-powered thrill-seekers

Hertz's Mille ML Power 4 amp combines the versatility of a multi-channel amp with some serious full-range Class-D firepower. This Mille Power Series 4-channel amp can send each of your front and rear speakers 120 watts RMS, which is the kind of power that makes high-performance aftermarket components sound their best. You could also use this amplifier in 3-channel mode to power your front speakers with 120 watts RMS each, while sending 500 watts RMS to a subwoofer. Or, with the amp in bridged 2-channel mode, you could power two subwoofers with 500 watts RMS each. 

Bi-amp a 2-way active system

The ML Power 4's onboard variable crossovers have extraordinarily wide frequency ranges — stretching up to 5000 Hz for Channel-A — so, for instance, you could use the amp to power two tweeters with one pair of channels, and a couple midrange or mid-bass woofers with the other pair.

Fits and works almost anywhere

Hertz engineered this amp using advanced D-Class technology to ensure efficient and reliable performance. The amp's heat sink is built with both extruded and die-cast aluminum to help keep the amp running cool, even when pushed hard. High-level inputs feature Hertz' ART™ (Automatic Remote Turn-on), so this amp can be used to improve the sound in almost any system, even one using the factory radio.

About Hertz

When you think of Italian cars, you think of style, performance, and awesome sound. Same goes for Italian audio gear. Hertz speakers, subs, and amps have made cars sound super since 1998. Known for great sound and technological innovation, high-end gear from Hertz will bring powerful performance audio to any vehicle or vessel.

READ LESS

Product highlights:

  • 4-channel car amplifier
  • 120 watts RMS x 4 at 4 ohms (250 watts RMS x 4 at 2 ohms)
  • 500 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode)
  • CEA-2006 compliant
  • Class-D amplifier technology
  • frequency response: 5-55,000 Hz
  • Channel A:
    • variable high- or low-pass filter (50-5000 Hz, 12 dB/octave)
  • Channel B:
    • variable high- or low-pass filter (80-3300 Hz, 12 dB/octave)
Other Features:
  • preamp and speaker-level inputs
    • Automatic Remote Turn-on with speaker-level inputs
  • preamp outputs
  • fuse rating: 40A x 2
  • wiring and hardware not included with amplifier
    • 4-gauge power and ground wire recommended
  • 11-3/8"W x 1-7/8"H x 6-3/4"D
  • warranty: 1 year
  • MFR # ML POWER 4

What's in the box:

  • 4-Channel amplifier
  • Four 40A ATO fuses (2 installed)
  • Four 1" self-tapping screws
  • Quick Start Guide
  • Warranty card

Customer reviews for Hertz Mille ML Power 4

Loading reviews...

Average review:

5.0 out of 5 stars
7 reviews

Filter by rating

Customer photos

Customer provided image, click to load a larger version.
Customer provided image, click to load a larger version.

Sort reviews

Sort by:
Items per page:
View page:

Verified customer (What's this?)
Verified employee review (What's this?)

Reviewed on Samsung.com

This review was collected as part of a promotion

Pros:

Cons:

Crutchfield response
Customer provided image, click to load a larger version.
<< >>

Product Research

Features

Overview: The Hertz Mille Power series amplifiers feature Advanced D-Class (ADC) technology to deliver high-end performance and efficiency. They feature thermally-optimized, double-extruded aluminum heat sinks. Heat is transferred away from the internal components and out to the heat sinks where it is dissipated through the sides of the amp. Mille Power amps are optimized to drive Mille-series speakers and subwoofers. The ML Power 4 is a 4-channel amplifier for driving front and rear speakers, or subwoofers.

CEA-2006-A Power Output: The ML Power 4 is compliant with the CEA-2006-A Amplifier Power Standard, which makes it easy for consumers to compare amplifier power specs from one brand to another. The amplifier's CEA-2006-A ratings include:

  • RMS Power (4Ω, ≤ 1% THD+N, 14.4 volts): 120 watts x 4
  • S/N Ratio (ref. 1W output): 80 dBA

Hertz Power Output Specs: Hertz publishes the following power output specs (RMS Output Power, 14.4 volts, THD 1%):

  • 4 Channel: 150 watts x 4 (4Ω)
  • 4 Channel: 250 watts x 4 (2Ω)
  • 3 Channel: 150 watts x 2 (4Ω) + 500 watts x 1 (4Ω)
  • 3 Channel: 250 watts x 2 (4Ω) + 500 watts x 1 (4Ω)
  • 2 Channel: 500 watts x 2 (4Ω)

Auto Remote Turn-On (ART): The ML Power 4 features ART (Auto Remote Turn-On) which automatically powers on and off the amplifier when an audio signal (or lack of one) is detected on the speaker-level inputs. This is especially helpful when connecting the amplifier to an OEM radio. It eliminates the need for running a remote lead from the head unit to the amp. ART is only available with Speaker Level inputs.

Amplifier Controls: The versatile Hertz ML Power 4 has a full array of filters and controls to help you configure your audio system for maximum performance. Most of the controls are located on top of the amplifier, under a removable cover, and include the following:

  • Level: The rotary Level control lets you match the input of the amplifier to the output of your head unit. The amp will accept either line level (RCA) or speaker level (harness) inputs. The sensitivity range is 0.2V to 5V (preamp level) or 0.8V to 20V (speaker level). There are separate Level controls for the Front and Rear channels.
  • Pass Mode: The amplifier has selectable low pass and high pass filters. This 3-way switch lets you choose Full, Hi-pass, or Lo-pass. The front (A) and rear (B) channels have different crossover frequency ranges. There are separate Pass Mode switches for the Front and Rear channels.
  • Mode: The front and rear channels can be operated in stereo or mono. You can choose the mode with the 2-way Mode switch. If mono is selected, the right channel input is used for that pair of channels.
  • Xover: The front and rear channels feature different crossover frequency ranges. The front (or A) channel crossover has a range of 50Hz - 500Hz. With the multiplier set to X10, the range goes to 500Hz - 5kHz. The rear (or B) channel crossover range is 80Hz to 3.3kHz. There is no multiplier on the rear channels.
  • Hi-In Auto Turn-On: You can activate or deactivate the ART (Automatic Remote Turn-On) feature with the 2-way switch, located on the end of the amplifier. When set to On, you must use the Hi-In speaker level inputs.
  • B Input: If the source unit does not have line level outputs, you can feed the front channel signal to the rear channels by setting the B Input to the "A" position. If you're using separate front and rear inputs, the switch should be in the "B" position.

Connections: The ML Power 4 has the following connections:

  • Power/Ground/Remote Turn-on: The amplifier is equipped with set-screw type terminals for power, ground, and remote turn-on. The power and ground terminals will accept up to 4 AWG wire, while the remote terminal will accept up to 10 AWG wire. In most cases, 4 AWG power and ground wires are recommended. Typically, an 18 AWG remote turn-on lead is used, unless the Automatic Remote Turn-on (ART) is used. The set screws can be tightened/loosened with a Phillips-head screwdriver (not included).
  • Fuses: Two 40A ATO (blade type) fuses are installed in the amplifier. Two spare fuses are also included. An 80A fuse should be placed within 18" of the battery on the +12V power wire as well.
  • Speaker Outputs: The amp provides set screw terminals for four speakers. The minimum impedance rating for the connected load is 2Ω. The set screws can be tightened/loosened with a Phillips-head screwdriver (not included).
  • RCA Input: Two stereo RCA inputs are provided for connecting an aftermarket head unit to the amplifier. The inputs will accept a signal between 0.2V and 5V.
  • RCA Output: Stereo RCA outputs allow you to pass on the signal to another amplifier. The preamp output signal is full range, and unaffected by any crossover.
  • Speaker Input: The speaker inputs, labeled "Hi In," feature 4-pin Euroblock-type connectors. The removable connectors have 4 slots for the source unit's speaker wires. The Euroblock connector requires a small flat head screwdriver (not included). The speaker inputs will accept a signal between 0.8V and 20V.

Additional Specifications:

  • Power Supply: 11-15 Volts DC
  • Idling Current: 1.5A (on); 0.04 mA (off)
  • Consumption (2Ω, 14.4V Max Musical Power): 50A
  • Remote In: 4-15 Volts DC / 1mA
  • Frequency Bandwidth (-3dB): 5Hz to 55kHz
  • Distortion - THD (100Hz at 4Ω): 0.08%
  • S/N Ratio (A-weighted at 1V): 100dB
  • Damping Factor (100Hz at 4Ω): 80
  • Pre-in Impedance: 15kΩ
  • Speaker-in Impedance: 470Ω

Loading accessories...

Customer Q&A

6 questions already asked

Q
Are the amps suposse to get so hot?
jose  May 08, 2023
1 answer
A
Thank you for your question, Jose. Since you purchased the amp from Crutchfield, feel free to contact our Tech Support. Our toll-free Tech Support number is printed on your invoice and is also available under the "My Orders" tab in the "My Account" section of our website.
andrea  May 08, 2023 (Staff)
Q
How can I use this to run 1800.3 and 280.3 in front of Tahoe. 1800.3 says 200-400 watts and power to 280.3 in a dsp system?
russell  Apr 27, 2023
1 answer
A
Thank you for your question, Russell. If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the installation of this amp in your Tahoe. Our toll-free Tech Support number is printed on your invoice and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
andrea  Apr 27, 2023 (Staff)
Q
How can I use this to run 1800.3 and 280.3 in front of Tahoe. 1800.3 says 200-400 watts and power to 280.3 in a dsp system?
russell  Apr 27, 2023
1 answer
A
You can use this ML 280.3 amp to drive all four speakers in your DSP setup Russell, you would be sending the 1800.3 Mille 7" woofers about 120-watts RMS. This is in the sweet spot power-wise for the 1800.3 Mille Legends and would sound great especially in a DSP setup!
bo  Apr 27, 2023 (Staff)
Q
Weight ?
udaya  May 24, 2020
1 answer
A
It weighs 6.7 pounds
thomas  Jun 15, 2020 (Staff)
SHOW MORESHOW LESS

Loading articles...

Compare the sound