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enjoy intense moments

Grandioso Opus

Grandioso, a name befitting Sinfoni | Quartorigo's passion for perfection; a speaker system that was finalized and perfected using what are arguably the finest, most pure mobile amplifiers in the world, La Prima. The Grandioso Opus speaker system was in development for over four year and this dedication to perfection is evident in Grandioso Opus' superb performance; accuracy, articulation and speed are immediate and result in a highly enjoyable and thrilling speaker system. While there are many fine speaker systems the stellar performance of Gransioso Opus allows them to sit alone in a special top level catagory with the Sinfoni | Quartorigo La Prima amplifiers. A speaker system designed to take full advantage of the La Prima's capabilities in reproducing music with incredible clarity, detail and dynamiscim; feeling music, emotion with remarkable realism and enjoyment. High Definition speakers meant to be the Ultimate Statement in music reproduction. Designed with specific analysis software the Granioso Opus' unique Composite Frame Construction (CFT), paper / copper cone are some of many technical innovations found in the impressive 6.5" Opus Woofer to give the system its low yet articulate frequency response. The Opus Tweeter chambered tweeter blends perfectly with the Opus Woofer's speed and resolution giving extended detail and accuracy to the Grandioso Opus system. The Opus Crossover features top quality components and a phase correct perfect design to match the superlative performance of the Grandioso Opus drivers. As with all Sinfoni | Quartorigo products the Grandioso Opus is designed for music lovers.

Technical details

16.5cm Midwoofer
Normal Impedance: 4Ω
Power RMS: 90W
Voice Coil Ø: 38mm
Sensivity: 89dB
Frequency Response: 60Hz - 8.000Hz
Fs: 61Hz



10cm Midrange
Normal Impedance: 4Ω
Power RMS: 100W
Voice Coil Ø: 32mm
Sensivity: 89dB
Frequency Response: 90Hz - 12.000Hz
Fs: 220Hz



25mm Tweeter
Normal Impedance: 4Ω
Power RMS (filtered 12dB 6000hz): 100W
Power RMS (filtered 12dB 3500hz): 60W
Voice Coil Ø: 25mm
Sensivity: 90dB
Frequency Response: 2.800Hz - 20.000Hz
Fs: 970Hz



2 way crossover
Handled power: 300W RMS / 600W Max
Normal Impedance: 4Ω
Tweeter : 6-12dB/18dB/octave
Level attenuation selectable : 0, -3, -6dB
Woofer : 6-12dB/18dB/octave
Crossover Frequency : 2.500Hz
Tolerance: ±20%