Speakers Quartorigo Opus Woofer 6.5"

Name: Speakers Quartorigo Opus Woofer 6.5&quot;
Brand: Quartorigo
Price: 2699.00 EUR
Availability: InStock

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Mid-bass speakers, Ø 165 mm, 90 W RMS, 4 Ω, 92 dB (2.83V/1m)
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Quartorigo Opus Speakers

The word Opus has several meanings, including a work of art, a masterpiece or an operatic composition. At Quartorigo they believe all these meanings precisely capture their vision and expectations for this speaker system. This dedication to perfection, finalized and refined after more than two years of intensive development, is evident in the exceptional performance of the Opus system, its accuracy, articulation and timing. A highly entertaining and exciting speaker system designed to fully exploit the capabilities of the Desideria flagship in reproducing music with incredible clarity, detail and endless dynamics. Opus represents the ultimate expression of the musical experience, enhancing the feeling of music and emotions with remarkable realism and pleasure. For music lovers.

Design and construction features of the Opus range

The top Opus range includes mid-bass, midrange and tweeter drivers machined from a single block of aluminum. Interestingly, the aluminum block for the mid-bass driver can no longer be reused to produce the smaller components, such as the midrange and tweeter drivers. Even though only just under 12% (744 g) of the original weight of the aluminum block (6265 g) is used. The one-piece aluminum basket leaves no tolerance for performance loss during cone movement and is entirely immune to vibrations. It also ensures optimal airflow and excellent heat dissipation from the voice coil thanks to five huge openings between the spider and the magnetic system. The drivers’ design is complemented by metronome-shaped cable terminals, machined from brass and subsequently nickel-plated. To ensure maximum sound fidelity, the mid-bass and midrange drivers use a traditional paper cone in a silver finish that perfectly matches the aluminum basket. The tweeters, with a 28 mm silk dome, are also made from a single block of aluminum. Despite their small size, the tweeter contains a rear chamber behind the magnet that allows the tweeter to reach lower frequencies, which is particularly appreciated in a two-way system. The integrated connectors were designed to offer a cohesive aesthetic while keeping the speaker volume as small as possible.

Main features of the Quartorigo Opus Woofer 6.5"

High-end 165 mm mid-bass drivers.
Paper cone for maximum sound fidelity.
Basket machined from a single block of aluminum weighing 6,265 g.
Metronome-inspired copper connection terminals.
High-performance ferrite magnet for excellent power control.
Oversized 38 mm diameter voice coil.
Handcrafted with 100% Made in Italy certification.

About the Quartorigo brand

For music Lovers. The motto of this Italian manufacturer, represented by a conductor in its logo, also expresses the fundamental principles of Quartorigo. In a highly competitive market where brands and products quickly lose their identity, Quartorigo offers a clear and solid origin. Quartorigo are proud of their heritage and in every product combine the essence of Italian design, honest craftsmanship and a passion for music, through which they aim to present their way of being, thinking and perceiving. With Quartorigo products you are instantly transported from the concert hall to the seats in your car, experiencing the same emotions without losing a single note. With this concept in mind, Quartorigo embodies the true conductor sitting before you to provide a unique musical experience that remains true to its origins. For more than 25 years you can rely on handcrafted products born from a long tradition, perfected over time and built to last a lifetime.

Catalog number	OPUS WOOFER 6,5"
Brand	Quartorigo
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.	Mid-woofers
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!	90 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.	92 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.	89 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.	60 - 8000 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.	Paper
Resonant frequency of the mid-bass speaker	57.77 Hz
Cover grids included in the packageOriginal cover grilles in speaker packaging.	No
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