Opera Loudspeakers · Speakers
Grand Callas
Grand Callas is Opera's largest Callas floorstander, with twin 8 inch woofers, a 7 inch midrange, ScanSpeak 9700 tweeter, rear dipole tweeters, and bass adjustment.
fig. 01 · speakers
Grand Callas
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From Opera Loudspeakers
Grand Callas uses a 92-liter cabinet with an 80-liter woofer volume, a sealed midrange chamber, and thick MDF and wood construction to control resonance. Its adjustable bass switch, rear radiation system, and bi-amplification support help it adapt to room placement while preserving scale, depth, and tonal balance.
Specifications
| Type | Three-way Rear Bass-Reflex floor-standing Speaker with rear firing radiation system (dipole) |
|---|---|
| Finish | Lacquered Walnut / Lacquered Mahogany |
| Tweeter | 1” Scan-speak 9700 tweeter without ferrofluid and double decompression chamber |
| Mid | 7” midrange with polypropylene re-cooked cone and phase plug |
| Woofer | 2 x 8” long-throw woofer |
| Sensitivity (2.83V/1m) | 89 dB/2.83 Volt/1 meter |
| Frequency response (-3 dB) | 32 - 25000 Hz |
| Nominal impedance | 4 Ω |
| Minimum impedance | 3.2 Ω |
| Maximum power | 500 Watt (without clipping) for musical programs with crest factormore than 5 |
| Controls | Low Frequency adjustment switch |
| Recommended amplifier power | Starting from 10 Watt RMS |
| Crossover frequency | 200 e 2000 Hz (aprox.) |
| Position in the room | At least 20 cm from the rear wall |
| Dimension | 130 x 31 x 55 cm (h x l x d) |
| Net Weight | 75 Kg each Walnut, Mahogay |