Quartorigo Fantasia Woofer Speakers
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Quartorigo Fantasia
Fantasia in musical tradition is a symbol of absolute creative freedom — a space where classical rules bend to the author’s vision and imagination becomes the main driving force of innovation. It represents the courage to cross boundaries, explore uncharted sonic territories and transform bold ideas into extraordinary reality. This very spirit of uncompromising creativity and artistic rebellion is at the heart of the Quartorigo Fantasia speakers. They are not designed merely to reproduce sound, but to unleash the full spectrum of musical expression in all its breadth and emotion. Every driver, every single component and every design decision reflects tireless effort toward acoustic perfection through unconventional thinking. Fantasia does not follow established paths — it follows inspiration as a guiding principle and constantly redefines the limits of what’s possible through a pure creative vision. As with other Quartorigo products, the Fantasia line is completely designed, developed and manufactured in Italy, certified by the internationally recognized 100% Made in Italy stamp. 
Quartorigo Fantasia Woofer
The Quartorigo Fantasia Woofer is a driver that at first glance appears as a precisely designed technical object with a strong personality. The deep black cone with a pronounced concave profile immediately draws attention and clearly indicates there is no room for compromises. This shape is not merely an aesthetic element but a direct result of acoustic design focused on maximum control, stability and energy in the bass band. The Fantasia Woofer visually and technically represents the Fantasia philosophy — power, concentration and absolute control over sound.
The use of a neodymium magnet in a mid-woofer of this type is quite exceptional and itself indicates the ambitions of this driver. Neodymium provides extremely high magnetic force in compact dimensions, enabling precise guidance of the voice coil, fast response and outstanding control of the cone even under heavy load. The result is a bass foundation that is firm, authoritative and at the same time exceptionally accurate. Despite this power, the Fantasia Woofer features a sensitivity of 92 dB, meaning it is not demanding on amplifier power. It can deliver a full, dynamic bass performance even with relatively moderate power while retaining a high level of detail and control. This makes it an ideal choice for both sophisticated active systems and carefully designed passive configurations.
The driver basket is designed in a minimalist spirit with maximum emphasis on airflow. The open design significantly improves airflow in the magnetic system and voice coil area, reducing turbulence and back pressure caused by large cone excursions. More effective cooling and freer airflow contribute to lower distortion, greater stability under long-term load and overall better low-frequency performance. The Fantasia Woofer therefore does not behave like a conventional mid-woofer but rather like a precise tool for shaping the musical foundation. It is fast, powerful and refined, with a clearly readable bass structure and a natural transition to the midrange. Combined with other drivers in the Fantasia range, it creates a cohesive whole where every tone has its weight, shape and direction.
About Quartorigo
For music Lovers. The motto of this Italian manufacturer, depicted by the conductor in its logo, also expresses Quartorigo’s fundamental principles. In a highly competitive market where brands and products quickly lose identity, Quartorigo offers a clear and solid origin. Quartorigo is proud of its heritage and in every product combines the essence of Italian design, honest craftsmanship and a passion for music through which it seeks to express its way of being, thinking and perceiving. With Quartorigo products you can instantly move from the concert hall to the seats in your car, experiencing the same emotions without losing a single note. Aligned with this concept, Quartorigo embodies a true conductor sitting in front of you, delivering a unique musical experience that remains faithful to its roots. For more than 25 years you can rely on handcrafted products born in the distant past, refined over time and lasting a lifetime.| Catalog number | FANTASIA WOOFER |
| 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-bass |
| 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 |
| Installation depth of the mid-bass speakerThe installation depth of the speaker is measured from the bottom edge of the magnet to the bottom edge of the tin, plastic or cast speaker basket, or speaker bearing surfaces. | 76 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 | 60.15 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 |