A compact line of amplifiers with an invincible value/performance combination

The groundbreaking DIECI POWER amplifier series

Characterized by cutting-edge technologies and top-notch audio performance, the Dieci Power line offers a wide range of options for an uncompromising sonic experience.

The Dieci Power range includes two four-channel Class-AB amplifiers: the DP 4.400 delivering 75 W RMS x 4 at 4Ω and the DP 4.300 providing 60 W RMS x 4 at 4Ω. Additionally, there is a stereo model, also in Class-AB, the DP 2.200, delivering 80 W RMS x 2 at 4Ω, and DP 1.500, an ultra-compact monophonic Class-D amplifier capable of delivering a whopping 500 W RMS on a 2Ω load.

The Hi-Res audio certification for all four and two-channel models attests to a bandwidth reaching up to 40 kHz, positioning them at the top of their category and making them ideal for reproducing Hi-Res audio files from leading streaming platforms. The monophonic amplifier is characterized by a state-of-the-art Class-D circuitry with high efficiency, delivering 500 W RMS in a super-compact form factor.

Flexibility is ensured by the ability to configure all multi-channel models in bridge mode, adapting to the specific needs of each installation. The advanced filter section includes levels, adjustable crossover filters with a cutoff frequency of 50-4000Hz (12dB/Oct.), and bass-boost control to fine-tune the sound to perfection according to personal preferences. The monophonic amplifier also features subwoofer phase control and a subsonic filter.

All models feature RCA line-level inputs and dedicated connectors for high-level inputs. High-level connectors accept signals with voltages from 1.6 to 40 Vrms and integrate the USS circuit, important features for seamless integration with the latest car models.

All DIECI POWER models have Full-Range pre-out outputs, both when using PRE inputs and high-level inputs, allowing users to expand the system as desired.

For the monophonic DP1.500 there is the option to add the optional HRC-02 subwoofer volume control. This next-generation controller can be installed in three different modes thanks to ultra-complete mounting accessories, allowing users to adjust the subwoofer output volume to their liking while listening in the car.


The power supply voltage for Dieci Power amplifiers is designed to support up to 17.5V input for the mono model DP 1.500 and up to 16.5V for other models, expanding the product’s compatibility range with new car models. All amplifiers feature automatic power on and off functions that follow the car’s OEM source.

In conclusion, Hertz’s new Dieci Power series represents excellence in the world of audio amplifiers. With advanced technology, outstanding audio performance, and a range of advanced features, these amplifiers are designed to meet the expectations of the most demanding audiophiles. Whether it’s a Hi-Res audio system or one geared towards maximum dynamics, the Dieci Power series offers an unparalleled value/performance combination, ensuring an engaging and high-quality musical journey.