INT-250 Integrated Amplifier


Il Cremonese, a no-compromise, high end loudspeaker to join the most iconic family in the Sonus faber catalogue, the Homage Collection, is an homage to Antonio Stradivari and to his outstanding violin “Il Cremonese”, celebrating its 300th anniversary in 2015. “Il Cremonese” is one of the most important instruments in the history of Italian violin making, thanks to its innovative design and proportions, the quality and the depth of sound, and the beautiful materials and fi nishes used to create it. Inspired by the shape of Lilium, Il Cremonese introduces clean lines and an elegant, minimal, and sharp design. This new and atypical Sonus faber form represents an evolution towards technological and visual innovation, simultaneously maintaining the historic milestones that marked the history of violin making, as well as the history of the Sonus faber brand itself.

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Overview

“Il Cremonese” is one of the most important instruments in the history of Italian violin making, thanks to its innovative design and proportions, the quality and the
depth of sound, and the beautiful materials and fi nishes used to create it. Inspired by the shape of Lilium, Il Cremonese introduces clean lines and an elegant, minimal, and sharp design. This new and atypical Sonus faber form represents an evolution towards technological and visual innovation, simultaneously maintaining the historic milestones that marked the history of violin making, as well as the history of the Sonus faber brand itself.


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Technical specifications

SYSTEM
3.5 way, full para-aperiodic vented box “Stealth Refl ex System” .

TWEETER
Sonus faber “Arrow Point” DAD (Damped Apex Dome) H28 XTR-04. A Sonus faber designed 28 mm moving coil driver, with Sonus faber’s vibration optimized mechanical interface. The ultra dynamic linearity is given by the new Neodymium motor system. Implemented with a natural wood acoustic labyrinth rear chamber.

MIDRANGE
Sonus faber M18 XTR-04. A Sonus faber designed 180 mm neodymium magnet system ultra dynamic linearity midrange. CCAW wire is used on a composite former “eddy current free” voice coil. The dynamically linear magnetic fi eld motor incorporates triple Kellog/Goeller rings. A special diaphragm is made with a real time air dried non pressed blend of traditional cellulose pulp, kapok, kenaf and other natural fi bers with a transparent viscous surface damping coating. The midrange is decoupled from the main baffl e board and designed synergistically with its optimized “acoustic chamber”.

WOOFER
 Sonus faber W18XTR-12. A pair of Sonus faber designed 180 mm lightweight “sandwich” cone structure (high-tech syntactic foam core and two external surface skins of cellulose pulp) woofers are integrated in an acoustically amorphous “stealth refl ex” chamber. Designed to blend perfectly with the special midrange and, at the same time, to have absolute defi nition in their range: the sandwich structure with outer paper pulp skins has the same sonic character of the midrange cone. A powerful long stroke motor system with a 1,5” controlled “eddy current” voice coil is implemented for high speed, performance and linearity.

INFRA WOOFER
 Sonus faber W22XTR-16. A pair of Sonus faber designed 220 mm lightweight “sandwich” cone structure infra woofers (the same as the Woofers’)  are integrated in an acoustically amorphous “stealth refl ex” chamber. Designed to blend perfectly with the special woofers and, at the same time, to have absolute defi nition in their range: in fact using exactly the same cone sandwich structure with outer paper pulp skins. A powerful extreme linear stroke motor system with a 2” controlled “eddy current” voice coil is implemented for the presence of the lowest.

CROSS-OVER
Non-resonant design, optimized amplitude/phase response for optimal space/time performance. “Paracross topology”. The impedance at low frequencies is controlled for a clear and friendly amplifi er performance. Double staggered transfer function low frequency/room interface optimized fi lter.

FREQUENCY RESPONSE
25 Hz – 35.000 Hz, Stealth refl ex included.

SENSITIVITY
92 db SPL (2.83V/1 m).

NOMINAL IMPENDENCE
4 ohm

SUGGESTED AMPLIFIER POWER OUTPUT
100W – 800W, without clipping.

LONG-TERM MAX INPUT VOLTAGE (IEC-268-5)
30V rms

TOTAL DIMENSIONS (HxWxD)
1449.6 mm x 398.23 mm x 621.8 mm 57.07’’ x 15.68’’ x 24.5’’

WEIGHT
84 Kg / 184.8 lbs each – net weight.