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Opera Grandezza

The Opera Grandezza is equivalent to the Opera Diamond, but is additionally equipped with the 90mm diamond midrange driver from Accuton.

The components of the crossover consist of extremely high-quality mica capacitors and film capacitors from Duelund, Intertechnik, Mundorf and BMC.

The entire internal wiring from the pole terminals to the crossover and to all chassis consists of solid pure silver conductors with GORE dielectric made of extruded Teflon.


For the highest demands, the tweeter has a 30 mm diamond dome, the capacitor in front of the tweeter is made of solid pure silver foil with pure silver connections, the cables in the tweeter range consist of a silver-gold solid conductor.

In addition to the 30 mm diamond tweeter, the midrange speaker membrane is also made of pure diamond. The world's largest diamond midrange speaker is used with its 90 mm membrane made of pure industrial diamond, also from Accuton.

AudiaZ is the first German manufacturer to use this state-of-the-art loudspeaker.

Opera Grandezza Specifications


3 way, bass reflex


Tweeter 30 mm diamond membrane

Midrange 90 mm diamond membrane

Bass 2x 220 mm sandwich membrane


89.5 dB/W/m

Frequency response

22 Hz to 40 kHz

Nominal impedance

6 Ohms

Power amplifier performance

From 50 watts Class A


WBT pole terminals 0710AG


Width 284mm

Height 1257mm

Depth 284 mm




pearl gloss black

pearl gloss white

golden ebony high gloss

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