Trade in Want a Demo
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 Diva Floorstanders
Free Gift

  • Sale
  • Regular price £7,999.00
  • Available Worldwide Shipping

Our Customer Love Us

The new Callas Diva model is a three-way floorstanding speaker that replaces the previous model with the same name. It has been completely redesigned. The performance of the new Callas Diva is at the level of the Grand Callas model but with a significant reduction in volume to be use in smaller room. The low range, reflex loaded design, uses one 8 inch "long-throw" woofer, while the mid-high range is reproduced by a 7" annealed polypropylene midrange and by the 1" Scanspeak 9700 tweeter. The diffuser is complemented by the back radiation system that uses two Tweeters configured as a "natural dipole". It is obvious the effort to keep all the best features of the Grand Callas 2014 model to offer a complete, high-quality sound , a flexible system that is easily adaptable to the environment, all within an aesthetically pleasing cabinet, and also with a particularly good value for money .The back radiation system uses two tweeters connected as a natural dipole.

The performance of dipole is virtually indistinguishable from the triplet used on previous Grand Callas. The back radiation feeds the reflected field without interfering with the direct sound , while preserving the accuracy of the transient response. The back radiation balance the power response and increases the "Brilliance" which is a quality related to the perception of sound details. Improving the perception of detail means improving the perception of “space". The front panel of the cabinet of the new Callas Diva was shaped as to make possible a “close listening” position (with the listener even around a meter and a half from the loudspeakers) and makes this speaker very flexible and adaptable to various situations (for example, areas where the reverberation time is not particularly low). The other feature that contributes to the flexibility is the ability to modify the response of the low frequencies ( closing the reflex port ). The Callas Diva 2016 produces a sound stage that expands in three dimensions with an excellent impulse response and power, dynamics and extension at low frequencies worthy of the best in its class .


116 x 37 x 53,5 cm (HxLxP)


65 Kg each including metal base


Reflex, floor-standing with rear firing radiation system (dypole)


Lacquered Mahogany / Lacquered Walnut

Front driver:

1 x 8” long-throw woofers, 1 x 7” midrange with polypropylene re-cooked cone and phase plug.

Frequency response:

30 -25000 Hz


12 dB/ott. For woofers
                12 dB/ott for midrange
                12 dB/ott for the front tweeter
                12 dB/ott for the rear tweeters
                frequencies 200 e 2000 Hz ( aprox )

Cross-over frequency:

0000 Hz 

Maximum Power:

240 Watt (without clipping)

Recommended Amplifier:

test amplificatore


90 dB/2.83 Volt/1 meter

Nominal Impedance:

4 ohm (Z min >3.2 ohm)

Position on environment:

at least 10 cm from the rear wall

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. 

We have several deomonstation areas in both of our branches. Please give us a call on 03435236169 or email to enquire about hearing products at your local branch. 

Please always contact us before to make sure the product(s) are available

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