Opera Callas Bookshelf Speakers

Despite their bookshelf size, the Callas speakers utilize a 7-inch long-throw woofer and a rear-reflex design to achieve a frequency response down to 40 Hz. This allows them to deliver a controlled, extended low-frequency output that competes with many smaller floorstanding speakers.

The vocal range adjustment switch allows you to fine-tune the speaker's output to better match your room's acoustics. It is particularly useful for compensating for reflections or brightness in your listening environment, ensuring the midrange remains clear and natural.

Yes, the Callas speakers are well-suited for near-field listening. Their two-way design and high-quality Scanspeak tweeter provide a stable, three-dimensional soundstage that remains coherent even when you are positioned relatively close to the speakers.

Yes, these are passive speakers, meaning they do not have a built-in amplifier. You will need to connect them to an external power amplifier or integrated receiver to drive them.

Yes, the crossover is designed to support bi-wiring, allowing you to use separate cables for the high and low frequencies. This configuration also supports bi-amping if you wish to use dedicated amplifiers for the woofer and tweeter sections.

Because these are stand-mount speakers, they should be placed on sturdy, vibration-resistant speaker stands. Positioning them at ear level will help you take full advantage of the precise soundstage and vocal transparency the speakers are engineered to provide.