Cu o experienta de peste 33 ani in fabricarea difuzoarelor , SICA se remarca printr-o calitate deosebita la un pret corect. Difuzor Sica 6 D 1 CS, 120W / 60W RMS, difuzor de 6", care are un SPL REAL de 96 dB, ce lucreaza in conditii optime. Difuzor pe 4 ohm, greutate 1.00 kg. 

Specificatii pentru  Difuzor Sica 6 D 1 CS:

Nominal Overall Diameter ................. 165 mm 
Nominal Voice Coil Diameter .............. 25 mm 
Magnet Weight ............................... 280 g 
Flux Density................................... 0.95 T 
Weight .........................................1.00 Kg
ELECTRICAL CHARACTERISTICS
Musical Power ..............................120 W
Rated Power* .................................. 60 W
Sensitivity @ 1 W, 1 m ....................... 90.6 dB
THIELE-SMALL PARAMETERS
Voice Coil DC Resistance ........... RE 3.20 Ω
Resonance Frequency ............... fs 84.0 Hz
Mechanical Q Factor................. QMS 8.33
Electrical Q Factor................... QES 0.83
Total Q Factor........................ QTS 0.76
Mechanical Moving Mass ............ MMS 9.4 g
Mechanical Compliance............. CMS 378 μm/N
Force Factor .......................... B×l 4.29 Wb/m
Equivalent Acoustic Volume........ VAS 8 lt.
Maximum Linear Displacement .... XMAX +/- 2 mm
Reference Efficiency ................ η0 0.55 %
Diaphragm Area ...................... SD 123 cm2
Losses Electrical Resistance........ RES 3.1 Ω
Voice Coil Inductance @ 1kHz ..... LE 0.32 mH