Hertz HCP 4D amplifier

Name: Hertz HCP 4D amplifier
Brand: Hertz
Price: 319.90 EUR
Rating: 5.0000 (4 reviews)

(4 assessment)

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4-channel amplifier, 4 x 85 / 2 x 290 W RMS (4 Ω) / 4 x 145 W RMS (2 Ω), class D
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Hertz HCP 4D amplifier

The Hertz HCP 4D is a four-channel Class D amplifier. It is an ideal choice for those who want high performance in places where there is limited space for mounting the amplifier. Extremely versatile, complete in its functions and equipped with Speaker-In and RCA-In inputs to work with any head units. It was designed to work both in dual mono (optional mode) and for a three-channel system (with sub and front). All Hertz Compact Power amplifiers are built from high quality components. The heat dissipation system is optimized so that heat is transferred to the heatsink and then dissipated around the sides of the amplifier.

The Hertz HCP 4D amplifier uses these technologies

An extruded aluminum heatsink provides high thermal performance efficiency - using the top of the heatsink to effectively dissipate heat generated by electronic components. The internal temperature remains constant at all power levels.
A large number of filters for maximum versatility: Low-Pass, Hi-Pass, Band-Pass, Full Range, Bass Boost and Mono.
Specially balanced input circuits eliminate electromagnetic interference present at the preamplifier or speaker inputs. The power stage is equipped with a high-end transformer and Low-ESR 105°C capacitors, which are selected to ensure high efficiency and current capacity.
Automatic remote on/off function automatically turns the amplifier on and off using the OEM radio; eliminates the need for a remote source signal when using a speaker. This feature can also be turned off.

Catalog number	HCP 4D
Brand	Hertz
Links	Official web presentation
Number of amplifier channelsAmplifiers are divided into: - Monoblocks - 2-channel - 3-channel - 4-channel - 5-channel - 6-channel - multi-channel Each channel is used to power one speaker for the coaxial type, or one side if they are component speakers. Monoblock type amplifiers are mainly used for subwoofers. 2-channel are suitable for both subwoofers and, for example, the front pair of speakers in a car. 3-channel is used for front or rear speakers + subwoofer. 4-channel are used for front + rear speakers or 1 pair of speakers + subwoofer. 6 or 5-channel are used for 2 pairs of speakers + subwoofer, most often. Bridging means connecting the amplifier to a bridge, using the + pole from one channel and the - pole from the other channel. In most cases this is shown as "BRIDGED" on the amplifier.	4
Energy class of the amplifierAmplifiers are divided into two basic classes: analog and digital . Analog amplifiers (A/B) have higher consumption requirements, but usually have a more natural sound. Digital amplifiers (D) have significantly lower consumption and higher efficiency, but the sound may not be as faithful as with classic analog amplifiers.	D
RMS power into 4 ΩRMS power when loading speakers or subwoofer at 4 Ω. RMS power is the constant power of the amplifier and is one of the most important parameters when choosing an amplifier.	4 x 85 / 2 x 290 W
RMS power into 2 ΩRMS power when loading speakers or subwoofer at 2 Ω. RMS power is the constant power of the amplifier and is one of the most important parameters when choosing an amplifier.	4 x 145W
Low-pass filter (LPF)LPF / LP or "low pass filter" offers the possibility to adjust the amplifier using a potentiometer so that the lower band plays only the frequencies in a certain band that you need. This filter is used to adjust the frequency range for the subwoofer, so that it does not overload or distort the sound. Example: Amplifiers most often have an LPF from 20 to 300 Hz. We recommend setting this potentiometer in the range of 45-80 Hz.	50 - 3200 Hz
High pass filter (HPF)HPF / HP or The "hi pass filter" offers the option of setting the amplifier using a potentiometer so that medium, possibly mid-bass and treble frequencies play upwards from a certain frequency. Example: Amplifiers most often have an HPF from 40 to 300 Hz. If we set the potentiometer to a value of approx. 150 Hz, the sound will be clipped so that it plays frequencies from 150 Hz up to the maximum upper limit of the entire frequency range of the amplifier, perhaps up to 20,000 Hz. We recommend setting this potentiometer in the range of 80-160 Hz. Thanks to this setting option, the speakers can handle a higher performance, as you will not overload them with bass in the lower frequency range.	50 - 3200 Hz
Signal-to-noise ratioThe signal-to-noise ratio means that the output signal always contains noise. The signal-to-noise ratio expresses how much of this noise is compared to the useful signal. The so-called A value is given, which does not take deep and very high frequencies into account. This corresponds to the characteristic of human hearing, which is not so sensitive to deep frequencies, especially below 1 kHz. The higher the value, the better the amplifier is.	100dB
Input sensitivityIn order for the amplifier to perform its function correctly, it requires an input signal of a certain level, which is different for car radios. It is measured in "Volts" (e.g. 2 V, 4 V, etc.) The higher the value at the output of the pre-amplifier, or car radio, the less demands are placed on the power of the amplifier. However, the amplifier must allow this input sensitivity, and for that reason this value is also given for the amplifier.	0.6 - 5 V
Damping factorDF - Damping Factor . It is the ratio of the load (repro + cables, crossover, etc.) to the internal resistance of the amplifier. The bigger the DF, the more controlled the bass. Amplifiers with a lower DF tend to hum. Subwoofers with a higher Q in the bass reflex and sometimes in the enclosure will also cause humming.	200
The value of the fuses on the amplifierFrom the value of the fuses on the amplifier, you can get a true picture of the real performance of the amplifier.	2 x 20 A
Dimensions of the amplifier	215 x 190 x 50 mm
Mass	1.94 kg