Callas Diva

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s2smodern

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".

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".

TECHNICAL SPECS

System:

 Reflex, foorstanding with rear fireing radiation system (dipole). Finish in wood and leather. Bi-wiring. Support for spikes or wheels. 

Front firing loudspeakers:

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

 

 1 x 1” Scanspeak  9700 tweeter without ferrofluid and double decompression chamber

Rear fireing loudspeakers:

 2 x1” tweeters in “natural dipole” assembly

Number of ways:

 3 ways + rear dipole

Frequency Response:

 30 -25000 Hz

Cross-over:

 On 2 PCB 12 dB/ott. For  woofers 

 

 12 dB/ott for midrange 12 dB/ott for the front tweeter 

 

 12 dB/ott for the reas tweeters Cross-over frequencies 200 e 2000 Hz (aprox.)
Max Power (long period): 

 240 Watt  (without clipping) for musical programs with crest factor about 3

Max Power (Short period)

 500 Watt  (without clipping) for musical programs with crest factor more than 5  

Amplifier:

 Starting  from 10 Watt RMS

Sensitivity:

 90 dB/2.83 Volt/1 meter

Nominal impedance:

 4 ohm (Zmin >3.2 ohm)

Position in the room:

 At least   10 cm from the rear wall