Indiana Line Diva 552
Indiana Line is one of the most important Italian brands in the audio sector, offering loudspeakers. The brand’s traditions date back to the 1970s, and more precisely to 1997. From the very beginning, the goal of Indiana Line designers and engineers was to bring to the market solidly made models, distinguished by an extremely favorable price-quality ratio for the customer.
The pride of Italian designers
Indiana Line Diva is the flagship series of loudspeakers in the brand’s offer and the pride of its main designer. To emphasize the uniqueness of the design, the Diva 552 model, like other speakers in this line, received an exclusive finish with black piano lacquer. The name of the column series is not accidental. We are dealing here with a real Italian diva, who when she enters the stage, whispers stop and a spectacle of excellent sound begins.
Perfect for medium-sized rooms
The Indiana Line Diva 552 is a 2,5-way floor-standing loudspeaker with a pair of 140 mm drivers – woofer and mid-woofer. Under the electroacoustic drivers on the front, there is a bass reflex port. Thanks to this, it is possible to place the column even close to the wall. The large scale of the sound, considering the size of this construction, allows the Diva 552 to successfully amplify a room with an area of up to 20 m2, in combination with an amplifier with a power from 30 to 130 W. The amplifier loading impedance of the Diva 552 model is 4 – 8 ohms.
Refined 2,5-way acoustical design
The floor-standing model Diva 552 uses a 26 mm silk dome tweeter and radial rear chamber, and a strong neodymium magnet mounted on a soft rubber spring. It allowed isolating the tweeter from unwanted vibrations of the loudspeaker cabinet. Under the tweeter, there is a mid-woofer with a Curv cone made of woven polypropylene, formed into a profile that provides excellent directional characteristics, and at the same time optimal damping while maintaining a wide frequency range. Under there is a woofer, whose membrane is made of cellulose pulp, known for its warm and powerful bass reproduction. The magnetic drives of the transducers also deserve attention, as they use aluminum impedance linearization rings, which allowed for the reduction of harmonic distortions and at the same time improved the thermal conditions of the coils. In connection with the low-tuned bass reflex system, a dynamic yet clear sound is achieved, even at high sound pressure levels.
Crossover with two dividing frequencies
The proper bandwidth distribution in the Diva 552 model is ensured by a properly constructed crossover, which uses only air coils (instead of core coils). In turn, the filter section for the tweeter is based on foil capacitors. The speaker terminals in the Diva 552 have been made of magnetically inert materials. Importantly, you can connect the speaker to an amplifier in bi-wiring / bi-amping.
Unique sound and a wide soundstage
Indiana Line’s attention to detail, and at the same time care for the high quality of all components used, allowed the Italian Diva to go to the heights in terms of sound quality. The sublime geometry and carefully selected membrane materials resulted in a clear and strong midrange. Also of great importance for the final sound is the isolation of the tweeter from the cabinet, which allows for a detailed and open treble. The whole thing is complemented by a deep and warm bass, which does not dominate the rest, but at the same time is present while maintaining a wide soundstage. The floor-standing Indiana Line Diva 552 model will be perfect for a stereo audio system, especially in cooperation with transistor power amplifiers.
The most important features of the Diva 552 model:
- 2,5-way floor standing acoustical design
- Crossover frequencies: 300 Hz and 2,8 kHz
- 140 mm mid-woofer with Curv cone
- 140 mm bass driver with natural cellulose pulp cone
- 26 mm silk dome tweeter
- Bass reflex cabinet with a port at the front
- Frequency response: 40 Hz to 22 kHz
- Bi-amping / bi-wiring capability
- Black piano lacquer finish
- Suggested amplifier power: 30 – 130 W
- Sensitivity: 90 dB (2,8 V / 1 m)
- Dimensions (H x W x D): 825 x 160 x 240 mm
- Weight: 12,1 kg