Crescendo Revolution 5A1 amplifier

Name: Crescendo Revolution 5A1 amplifier
Brand: Crescendo
Price: 719.00 EUR
Availability: InStock

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1-channel amplifier, 1 x 450 W RMS (4 / 2 / 1 Ω), class AB
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Crescendo Revolution 5A1 amplifier

Experience the perfect combination of supreme performance and precise control resulting in unrivaled reproduction of vivid and dynamic music. The Crescendo Revolution 5A1 1-channel amplifier provides constant performance at any speaker or subwoofer impedance, all in a compact size. It was constructed with the primary aim of appealing to audiophiles and all music enthusiasts who require a highly musical and harmonically balanced sound. The Revolution 5A1 was designed for both advanced sound installations and sound quality competitions. Class AB analog with high-end internal components ensures typically faithful sound, very low distortion and excellent signal-to-noise ratio for inimitably clear sound. The aluminum heatsink ensures efficient heat dissipation for long-term reliability of the amplifier. The gray finish of the brushed aluminum looks stylish and will become an unmissable part of any installation. The amplifier's focus on absolute sound quality is also evident by the absence of all filters and filters that could negatively affect the resulting sound. This is also why Crescendo counts on an external DSP processor (or an advanced aftermarket car radio) as a necessary part of every quality installation. Only low-level RCA inputs are used for connection. The amplifier is also ready for high-resolution music playback thanks to the extended frequency range.

The main features of the Crescendo Revolution 5A1 amplifier

1-channel class AB amplifier.
Superior sound with exceptional musicality and fidelity.
It ensures constant performance at any speaker or subwoofer impedance
Very low distortion and excellent signal-to-noise ratio for inimitably clear sound.
Designed for demanding music enthusiasts and sound quality competitions.
Sufficient power for most high-end speakers and subwoofers.
Compact dimensions for easy installation in modern vehicles.
The aluminum heatsink ensures efficient heat dissipation for long-term reliability.
Gray brushed aluminum finish for a stylish installation.
It does not contain any filters and filters that could negatively affect the resulting sound.
Ready for high-resolution music playback thanks to the extended frequency range.
Smooth control of the input signal.
Stable to 1 Ω for use with low impedance subwoofers.
Low level RCA inputs.

Catalog number	CRESCENDO REV 5A1
Brand	Crescendo
Links	Official web presentation
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.	AB
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.	1
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.	1 x 450 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.	1 x 450 W
RMS power into 1 ΩRMS power when the subwoofer is loaded at 1 Ω. RMS power is the constant power of the amplifier and is one of the most important parameters when choosing an amplifier. When connected to 1 Ω, significant heating of the amplifier may occur.	1 x 450 W
Frequency rangeThe ability of the amplifier to reproduce the signal from the lowest frequency to the highest = faithfully reproduce the sound in a specific frequency band. Professionally: In the frequency range from 40 to 16,000 Hz, the vast majority of fundamental and overtones (harmonics) of all musical instruments are found. We are interested in the course of the radiated sound pressure in this range of frequencies when the loudspeaker system is supplied with constant power. We call this course the frequency characteristic, which tells us the level of radiated sound pressure in decibels (dB) depending on the frequency. The frequency characteristic of a speaker or speaker system can be expressed most succinctly with a graph. Mostly, however, the frequency characteristic is indicated by indicating the maximum tolerance of the sound pressure in the given frequency range, e.g. 50 to 15,000 Hz -+ 6 dB. Since the frequency characteristics of loudspeakers and systems in general are quite uneven, some manufacturers do not even specify this maximum tolerance of sound pressure in decibels in their catalogs for reasons of prestige. Data impoverished in this way is unfortunately worthless. What is valid is that the manufacturer offers a speaker system with a frequency range of 30 to 20,000 Hz, if he is worried about stating the maximum unevenness of the sound pressure in this range, because he can have a tolerance of, for example, +- 20 dB. The unevenness or undulation of the frequency curve in good speaker systems for high-quality music performance should not exceed +-3 dB in the 80 to 12,000 Hz band and +-6 dB in the 40 to 16,000 Hz band. Greater unevenness already depletes or emphasizes certain tonal areas, which can cause audible or even disturbing distortion. The proportion between fundamental tones and higher harmonics also changes, thereby changing the color of the sound, and individual musical instruments as well as the entire musical image sound unnatural.	4 - 80000 Hz
Harmonic Distortion (THD)Total harmonic distortion indicates how much the input signal is distorted in the amplifier. Distortions appear as overtones contained in the output signal. The proportion of originally absent parts of the signal is given as a percentage, typical values are between 0.001% and 0.5%. Distortion is measured in their power band. If it exceeds the limit of 0.7% from a certain power, it is the value of the output power of the given amplifier, from which it no longer plays without distortion and from which the distortion usually increases steeply, so that no further increase in power can be counted on. The lower the value, the better.	0.04 %
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.	122 dB
Inputs	2 x RCA
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.	7.5 V to 1.5 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.	> 500
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 30 A
High level inputsThe high-level input on the amplifier allows connection directly to the existing speakers in the car without additional purchase of an external high/low adapter. Important equipment in the case of installing an amplifier on an original car radio.	No
Socket input terminalsFerrule terminals allow better wiring contact to the amplifier. It is also a more secure form of terminals. If you are tightening the sleeve terminals, we recommend retightening them after 1 day, as the connected cable gradually compresses.	Yes
Dimensions of the amplifier	270 x 150 x 60 mm
Mass	2.3 Kg