Shipping Product
Personalised Video
Kronos AV
Kronos AV
Opera Loudspeakers was founded in 1989, but its origins go back to the early 1980s, to an unusual but highly fruitful synergy between two cultures and two audiophiles, one Italian and the other English. The first loudspeaker to bear the Opera name was called Caruso, and was the precursor of a series named in homage to the legendary voices of the lyric opera. Callas, Operetta and Divina soon followed, each gaining enthusiastic acclaim in the developed audio markets of the world.
Opera loudspeakers immediately appeared as a fusion between the old and the new: between traditional Italian craftsmanship in cabinet-making and the most advanced acoustic technology. Every Opera loudspeaker, even the least expensive model, follows a tried and tested philosophy of design: the use of top quality materials allied to carefully applied basic principles of acoustic science. Today our loudspeakers are exported everywhere, from Europe to the Far East with relevant space on the most important hi-fi magazines.

Opera Callas Stereo Speakers
Free Gift

  • Sale
  • Regular price £4,000.00
  • Available Worldwide Shipping

The latest product from the Opera stable to hold this illustrious title is no exception to the rule. The new Callas is a delightful speaker delivering stunning transparency and unrivalled three dimensional sound staging, along with fine tonal balance.  The handcrafted cabinet - in lacquered walnut or mahogany - is a work of real beauty.  A truly excellent loudspeaker.

System two ways, stand mounting, Reflex with rear duct, bi-wiring
Front firing loudspeakers 1 x 7” long-throw woofer with polypropylene re-cooked cone and phase plug. 1 x 1” Scanspeak 9700 tweeter without ferrofluid and double decompression chamber
Number of ways 2 ways
Frequency Response 40-25000 Hz
Cross-over On PCB
  12 dB/ott. For woofers
  18 dB/ott for the front tweeter
  Cross-over frequencies 2000 Hz (aprox.)
Max Power (short period) 100 Watt (without clipping) for musical programs with crest factor about 5
Amplifier Starting from 10 Watt RMS
Sensitivity 89 dB/2.83 Volt/1 meter
Nominal impedance 4 ohm (Zmin >3 ohm)
Position in the room At least 5 cm from the rear wall. Distance between speakers 1.5 – 3 metres, directed toward the listening point
Size 42 x 24,5 x 42 cm (HxLxP)
Weight 15 Kg each
Finishing Walnut, Mahogay

We are still delivering orders as normal. When your order ships you will still receive tracking details. For UK shipments, Our couriers have procedures in place to ensure deliveries are arriving as quickly & safely as possible. Drivers can now sign for your parcels, however will notify you that they have arrived, in order to ensure you receive your parcel. Signing for the parcel has now been stopped temporally for hygiene reasons. Drivers are also working with customer instructions, so you can ask them to leave the parcel in a safe place (doorstep etc...) if you prefer not to come into direct contact with the driver.

There has been no changes to deliveries with Brexit. All deliveries to the UK mainland, Northern Ireland and the Republic of Ireland are operating as normal. No VAT or charges are applicable. 

Express Deliveries

Express Delivery is FREE on all orders over £50. Express Delivery offers delivery in 24-72 hours from time of purchase. We use premium couriers for this service, mainly DPD & Royal Mail. DPD will offer you a one hour window for delivery to make sure someone is at home, or you can reschedule the delivery if no one is around. 

Standard Deliveries

Here at Kronos AV, we have vast experience with e-commerce sales. Making sure that your parcel arrives undamaged is a huge priority for us. That’s why at Kronos AV, we only use premium couriers for all our orders. All our parcels are shipped with DPD or Royal Mail and are always sent Signed For to make sure it gets to the right person. 

If for any reason your parcel does arrived damaged, please get in touch, and we will be happy to get everything resolved for you. We are always on hand to help!


Delivery is FREE on all orders over £50. In order to offer FREE delivery to UK customers, we use several premium couriers to ensure your delivery arrives safe.

Most large orders (over 2kg) ship using DPD or DHL courier and smaller orders (under 2kg) by Royal Mail signed for services.

The most appropriate courier will be chosen for the items ordered to ensure the quickest possible delivery.

We can offer very generous trade in offers across the majority of our product range. 

Why not ask and see how much you HiFi is worth!

To find out how much your HiFi is worth... Click Here

If you have any question, please feel free to call us on 03435236169 or email