Crescendo Revolution 5S2 speakers
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Crescendo Revolution 5S2 Component Speakers
Experience a sound revolution with the Revolution 5 series from Crescendo, designed with the help of artificial intelligence. Emphasis on excellent sound quality combined with carefully selected advanced materials creates a premium component system with unprecedented sound clarity. The mid-bass speakers of the Revolution 5 series rely on a high-performance neodymium magnet motor and a fiberglass diaphragm, providing excellent dynamics, precision, and precisely defined low frequencies. The 28 mm silk dome tweeters ensure faithful reproduction of high frequencies with detailed rendering. Everything is precisely housed in a solid aluminum chassis, eliminating resonance and distortion while creating exceptional aesthetics. The design is one of the standout features of the Revolution 5 series. Dark gray aluminum finish, custom-designed tweeter and mid-bass speaker grille with a floral pattern, and a fiberglass diaphragm together with perfect craftsmanship form a unique whole that complements the sonic properties of these speakers.
Fiberglass Mid-Bass Diaphragm
The mid-bass speaker of the Revolution 5 series is equipped with a fiberglass diaphragm, proving to be an optimal material for precisely defined low frequencies with advanced dynamics. Fiberglass is also known for its lightness and strength, allowing for quick and precise response to audio signals. The fiberglass diaphragm also has naturally low resonance, minimal sound distortion, and a cleaner audio output. Advantages include resistance to moisture and temperature changes, ensuring long life and stable performance in various conditions. Included is a concave dust cap, which helps better control the direction and distribution of sound in space, leading to more even sound distribution. Thanks to the concave shape and solid fiberglass composition, resonance is minimized, and frequency response is improved. The package includes a robust designer grille for use in design-oriented installations.
Neodymium Magnet Motor System
The neodymium magnet, thanks to its exceptional properties, is traditionally part of tweeters, but in the Revolution 5 series, it is also found in mid-bass speakers despite the high acquisition costs. Neodymium has a much higher magnetic force than a conventional ferrite magnet while being compact and very lightweight. This allows for better control over the movement of the coil and diaphragm and more precise, detailed sound. Neodymium also contributes to quality sound and above-standard dynamics with faster and more precise diaphragm movement and the ability of the speaker to respond to rapid changes in the audio signal. Another advantage is better resistance to temperature changes, ensuring stable performance even at higher load levels. Thanks to the stronger magnetic field, the mid-bass achieves higher sensitivity, reducing the demands on amplifier power. The overhung motor design is characterized by a coil that is larger than the length of the magnetic gap in which the coil moves. This design allows the speaker to achieve more linear coil movement, leading to lower distortion and better sound quality, especially at higher volumes. The longer coil also allows for better control over diaphragm movement.
Silk Dome Tweeter
The Revolution 5 series tweeter with a 28 mm silk dome allows for high-frequency reproduction with excellent clarity and outstanding detail. Silk is known for its smooth and natural sound, wide frequency response, and very low weight, contributing to high sensitivity and quick response to audio signals. The integrated aluminum chassis of the tweeter in a dark gray matte finish not only enhances the beautiful design of the Revolution 5 series but also ensures minimal distortion and vibrations. The custom-designed aluminum grille helps optimal sound passage and minimizes the so-called "horn effect." This acoustic phenomenon concerns traditional speaker grilles with a regular design, where the grille functions similarly to a horn, directing sound waves in a certain direction and potentially emphasizing certain frequencies. The neodymium magnet ensures high magnetic performance, rapid diaphragm response, optimal control, and low distortion. Silver-plated copper wire for connecting the tweeter contributes to sound purity.
| Catalog number | CRESCENDO REV 5S2 |
| Brand | Crescendo |
| Links | Official web presentation |
| Speaker typeCoaxial speakers: Coaxial speakers are characterized by a so-called all-in-one design. The tweeter and mid-bass speaker are in one basket. The advantage is simpler assembly, but thanks to the connection or proximity of the bands in one speaker, the sound quality will usually be reduced. As a rule, in the middle of the mid-bass speaker, there is a tweeter whose voice coil works in the second air gap of the common magnetic circuit. The three-way coaxial speaker consists of a mid-bass speaker, a center speaker and a separate tweeter in the front on a special beam. Component Speakers: Component speakers are characterized by a division into individual frequency bands, treble + mid-bass + or. bass band. The individual speakers can be placed completely separately, which results in a better sound and acoustic performance. In the vast majority of cases of component speakers, an external crossover is also supplied, which divides the treble, middle / mid-bass, and into the three-band the bass band or allows setting the decibel level of the tweeter (e.g. +2 dB, 0 dB, -2 dB), steepness (e.g. 6dB/Oct. 12dB/Oct.) or active or bi-amp connection. | Component 2-way |
| RMS powerRMS speaker power is the constant power of the entire system, not just one speaker or one side. This is also the performance of continuous use of the speakers. If the RMS power is exceeded for a long time, the speakers may be irreversibly damaged! | 100 W |
| Sensitivity (SPL 2.83V/1m)Sensitivity, sensitivity or efficiency of the speaker. Speaker sensitivity is given in decibels (dB) and simply put, the higher the value, the lower the demands on the amplifier's power. This is a defacto rating of how a speaker converts watts to sound. Sensitivity ratings are in noise level measured at 1 meter from the speaker using 1 W (watt of power) or using 2.83 volts at the source at 1 meter. A higher decibel level means the speaker is louder with less power. For every 3 dB increase in sensitivity, the speaker requires half the power to reproduce the same volume. For example, if an 88 dB speaker needs 100 Watts to produce a certain volume, then a speaker with a sensitivity of 91 dB needs only 50 Watts to reach the same volume. | 91.4 dB |
| Sensitivity (SPL 1W/1m)Sensitivity, sensitivity or efficiency of the speaker. Speaker sensitivity is given in decibels (dB) and simply put, the higher the value, the lower the demands on the amplifier's power. This is a defacto rating of how a speaker converts watts to sound. Sensitivity ratings are in noise level measured at 1 meter from the speaker using 1 W (watt of power) or using 2.83 volts at the source at 1 meter. A higher decibel level means the speaker is louder with less power. For every 3 dB increase in sensitivity, the speaker requires half the power to reproduce the same volume. For example, if an 88 dB speaker needs 100 Watts to produce a certain volume, then a speaker with a sensitivity of 91 dB needs only 50 Watts to reach the same volume. | 88.4 dB |
| ImpedanceImpedance - measurement of electrical resistance. When buying speakers, it is important to make sure that the impedance matches the amplifier or car stereo you are using. Example: A 2 Ohm speaker cannot be connected to an amplifier that is only stable up to 4 Ohms! A 4 Ohm speaker can easily be used with an amplifier that is stable up to 2 Ohms. The most common speaker impedance today is 3 - 4 Ohm. | 4 Ω |
| Frequency rangeThe ability of the speakers to play a signal from the lowest frequency to the highest, or the speaker's ability to faithfully reproduce 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. | 50 - 20000 Hz |
| The diameter of the mid-bass speakerWe state the diameter of the speaker as the diameter of the entire speaker, not including the mounts, when smaller speakers (87, 100, 130 mm) have extra mounts. Some speakers are oval and there the dimension is given in inches, always the shortest side to the longest side. One inch is approx. 2.5 cm. | 165 mm |
| Mid-woofer diaphragm materialThe material that was used for the speaker diaphragm. Don't be afraid of the paper, it surprisingly has a very natural and high-quality sound and, thanks to the surface treatment, it can withstand moisture without any problems. | Glass fibers |
| Resonant frequency of the mid-bass speaker | 62.5 Hz |
| Overall tweeter diameterThe total diameter of the tweeter is given as the diameter of the individual tweeter without the installation houses. | 57.5 mm |
| Tweeter dome diameterThe net diameter of the dome (diaphragm) of the tweeter. | 28 mm |
| Tweeter dome materialThe shell material that was used in the manufacture of the tweeter. | Silk |
| Frequency crossover included in the packageThe crossover is an important part of defacto all loudspeakers. A crossover usually contains different resistor values, coil sizes, and capacitor types that fundamentally modify the sound. We describe below what the turnouts are for. Component Speakers: A crossover is part of every quality component speaker system. Its task is to ensure the distribution of frequencies that the amplifier produces in the entire acoustic spectrum of frequencies so that each of the speakers receives only that part of the band that it can optimally play in terms of efficiency and minimal distortion. Coaxial speakers: In most cases, coaxial loudspeakers have a simple crossover (6dB/Oct.) formed by a capacitor at the tweeter. | No |
| Cover grids included in the packageOriginal cover grilles in speaker packaging. | Yes |
| Price forIf the price is for a pair, the package always includes 2 pieces of everything, e.g. 2x mid-bass, 2x tweeter and 2x crossover. | Pair |