Opera Callas stereo speakers

Opera Callas stereo speakers

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Opera Callas stereo speakers

High-end bookshelf speakers don't come much better than the Callas, with multiple front and rear tweeters and a highly developed bass/ midrange unit by world renowned specialist SEAS.

With this new model in the Callas Series, Opera`s intention is to create at home the emotion and pleasure of listening to music: to provide a musical, focused, three-dimenionalsoundstage with the correct timbre, dynamics and detail - and to do this with no sense of listening fatigue. To achieve this goal new technical solutions have been researched and applied and every single aspect of the design was subjected to intense musical listening tests at Opera. The new Callas model use techniques and components which reflect the state-of-the-art in electro acoustic design, including not only cabinets, drive units and crossovers but also new devices as the frond doublet and the new Triplet rear radiating device. The sonic result is tonally correct, convincing, involving and most of all, enjoyable to listen to. The new Callas is elegant looking and beautifully finished and will discreetly enhance any room.


Technical Specifications: Opera Callas

System     Bookshelf and Stand – Bass Reflex , rear ducts Finishing: wood and hide
Front Sistem Loudspeakers     1 woofer 5” with magnesium cone, Excel Magnet, solid copper phase plug. Doublet: 2 tweeters with a 1” Sonotex dome, neodymium, ferrofluid, decompression chamber
Rear System     Triplet: 3 tweeters (the same as front system) with grid
Number of Way     Two ways with doublet + rear triplet
Frequency response     32 -25000 Hz
Cross-over     On Printed Circuit Board

12 dB/octave for the woofers

18 dB/octave for the il front tweeter

12 dB/octave for the rear Triplet (2kHz high pass)

Cross-over frequency around 1500 Hz
Maximum power (Long Term)     80 Watt RMS
Maximum power (Short Term)     250 Watt RMS (no clipping)
Suggested amplifier     Starting From 10 Watt RMS
Sensibility     86 dB/2.83 Volt/1 metre
Nominal impedance     4 ohm (Zmin >3.2 ohm)
Position within surroundings     At least 50 cm from walls

Dimensions     37.5 x 23 x 34 cm ( h x l x d ) 14.8 x 9 x 13.4 in ( h x l x d )
Weigth     26 Kg 57lb


Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £100*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.


Orders are sent via our couriers' DPD on a next-day-delivery service and usually, take between 1 and 3 days. 


Please use this link to find more detailed delivery information.


*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however, delivery to these locations will incur a charge and can only be sent via a 2-day service.

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