Designed and engineered according to Elettromedia's standards, the Hertz-Energy amplifiers, HE in short, are the best choice when interfaced with your factory OEM sound system and are perfectly suited to expand an aftermarket sound system.

After the design of Hertz EP amplifiers, The Elettromedia R&D team focused on a very hard goal: to provide the traditional Hertz sound and power through an amplifier at a more affordable price. The goal was achieved!
HE amplifiers are equipped with a thermally optimized die-cast heatsink for enhanced thermal performance: HE amplifiers, in fact, feature vertical fins besides the horizontal fins, used in the traditional extruded heatsink. To complete the design, a shroud on each end of the amplifier provides a stealth look, hiding the wiring and the controls.
In order to enhance the HE Hi-Tech cosmetics, a blue back-lit logo has been integrated into the top of the heatsink, providing the ability for the user to easily check the status of the amplifier.

Underneath the heatsink, multiple winding transformers, high current 105° C Electrolytic capacitors and low RDS-ON mosfets are employed. HE 2 and HE 4 are equipped with SANKEN TO3P output transistors, while HE 1 D features a Class D output stage based on solid TO247 power mosfets, also employed in the Synchro D-Class circuit. RCA and Speaker In inputs with high electro-magnetic noise rejection allow the user to easily interface HE models with both aftermarket and OEM headunits.

The HE 4 is a four-channel, 800W (Max) amplifier that can be bridged in dual mono as well for utmost flexibility; it is the ideal choice to upgrade your factory system: pre-amplified inputs as well as hi-level inputs offer the possibility for the HE 4 to be interfaced with any head units, including factory OEM systems. Real 12dB/Oct. continuously adjustable (40 to 400Hz) active crossover with Lo-Pass/Hi-Pass or Full Range settings on each pair of channels ensures the best acoustic performance of your car audio system especially in front plus subwoofer application.

The HE 2 is a stereo 400W (Max) amplifier that can be bridged in mono as well; it is the ideal choice to upgrade your factory system: pre-amplified inputs as well as hi-level inputs offer the possibility for the HE 2 to be interfaced with any head units, including factory OEM systems. Real 12dB/Oct. continuously adjustable (40 to 400Hz) active crossover with Lo-Pass/Hi-Pass or Full Range settings ensures the best acoustic performance of your car audio system.

The HE 1D is a mono, 900W (Max) amplifier in a very small footprint heatsink. The HE 1D features a Synchro D-Class technology, where the Output Stage PWM Driver Module generates its own digital clock and also generates the Power Supply PWM Driver clock in order to synchronize both of the stages, avoiding noise being generated inside the audio band. This technology has allowed an extremely high Signal/Noise ratio of 100dBA! The power supply section is equipped with two multi-winding toroidal core transformers along with Low ESR 105°C capacitors, ensuring very high efficiency. The HE 1D boasts extreme reliability thanks to the use of FR-4 double layer PCB material. 70µm thick copper traces in combination with robust copper bars are used to increase the current transfer in the power supply sections.