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SF3

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The diminutive SF3 is a little square-shaped surround speaker, designed to contribute to a ‘holographic’ audio effect when located on back and side walls. Its size though makes it ideal as a super-discreet and desirable audio solution around the home. The intrinsic flexibility of SF3’s pivoting tweeter allows it to perform brilliantly at any angle according to room design.

SF3 2 way 4-inch Framed Speakers

Gold Dome C-CAM®

The gold dome tweeter is formed from a ceramic-coated aluminium/magnesium alloy, gold anodised to a specific thickness for ideal stiffness and damping characteristics. Its new profile and surround geometry have been developed using advanced modelling tools, to provide the optimum qualities for accurate sound reproduction. The new design moves the first order of breakup to beyond 35kHz, producing a linear response way beyond audibility, which matches the wide frequency bandwidth available from HD music and cinema sound formats.

The gold dome is thinner, lighter, more rigid and therefore more efficient than domes made from other materials which are prone to distortion in the audio band.

 

IDC®

The in-ceiling and in-wall LCR models employ a unique pivoting Inverted Dual Concentric midrange/tweeter module offering up to 18 degrees of play. This allows for the speakers to be discreetly positioned and the sound to be directed toward the listening zone by pivoting the IDC driver module to maximize performance. With the IDC module installed, these architectural speakers become true 3-way designs, offering superior performance and flexibility over typical 2-way or fixed angle speakers.

Within the proprietary IDC module an inverted 4" midrange driver provides superior dispersion while enabling the midrange cone and tweeter dome assembly to be set as far forward as possible, allowing a clear acoustic 'sighting' of the desired listening zone and reducing undesirable diffraction effects. It's impossible to avoid diffraction effects from conventional two-way designs, which locate the bass driver 75mm (3") to 150mm (6") behind the speaker grille.

 

RST®

The Rigid Surface Technology (RST) cone profile is inspired by the Japanese art of Origami, which demonstrates how a very light material (like paper) can be strengthened and made more rigid by making small and precise folds on its surface. Monitor Audio has applied this principle in designing the CAM/RST cones for the GX and RX ranges. Developed and perfected using sophisticated computer modelling (Finite Element Analysis), the GX mid and bass driver cones have been strengthened by a series of radial ribs; the RX driver cones by a pattern of dimples. Our simulations have proved that RST significantly increases cone rigidity, allowing the radiating surfaces to resist mechanical bending forces, which can twist the shape of conventional driver cones to produce distorted sound. The strengthening effect of RST means that we can use thinner, lighter and more responsive C-CAM cones, which provide speed and accuracy while offering greatly reduced distortion. The RST patterns also help to displace standing waves that can propagate on the cone's surface.

Specification
Frequency Response 75Hz – 35kHz
Sensitivity 86dB
System Configuration 2 Way
Driver Complement 1 x 4" C-CAM mid-range driver
1 x 1" pivoting tweeter
Power Handling (RMS) 50W
Maximum SPL (each @1m) 102.5dBA
Recommended Amplifier Requirements (RMS) 25 – 50W
Bass Alignment Ported Box
Nominal Impedance 8 ohms
Crossover Frequency 3.2kHz
Dimensions Inc Frame:
(H x W x D)
289 x 289 x 77.5 mm
(113/8 x 113/8 x 3 inches)
Depth from wall: 77.5 mm (3 Inches)
Weight Packaged: 2.76 Kg (6 lbs)

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