Sturdy enclosure with a slightly inclined front

The Diva 6 speaker enclosure consists of two parts made of MDF board. One of them is a solid lacquered, backward-tilted front panel, which is 30 mm thick. It enhances the mechanical stability of the speaker and prevents unwanted resonances, significantly improving sound clarity. The interior of the Diva 6 model hides four cross reinforcements connecting all walls. Additional reinforcement includes a sealed chamber for the midrange driver. All these features prevent internal vibrations from transferring to the enclosure walls. The speaker rests on sturdy aluminium legs equipped with rubber vibration isolators, lending the speaker a noble appearance and preventing vibration propagation. The attractive design of the Diva 6 model is accentuated by a magnetically attached grille.

Processing low frequencies

Three electroacoustic transducers with concave dust caps are responsible for processing low frequencies. They feature long, nearly 15-millimeter, multi-layer coils and thick aluminium rings to linearize inductance. These are decidedly the most powerful drive units ever used in Indiana Line floor-standing speakers. They allow for large, linear membrane excursions. The total volume of air displaced by them is comparable, if not greater, than that of the Diva 660 model from the previous generation, which was equipped with a pair of much larger, 6.5-inch woofers. Additionally, due to the size of each low-frequency transducer membrane used in the Diva 6 speaker column, they move exceptionally quickly and precisely while maintaining low distortion levels, even at high sound levels.

High-frequency transducer

The tweeter in the Diva 6 model is a design also used in other speakers from the new generation of the Diva series. It provides spacious, open, and crystal-clear high tones. This is achieved through tuning using crossover filters containing only air coils and foil capacitors, as well as special, Radial Venting Chamber, that counteracts resonances behind the high-frequency dome. The front panel of the tweeter is cast from aluminium and has a rubberized surface. This contributes to widening the soundstage and better filling the room with sopranos. Furthermore, the proper tuning of the tweeter with the midrange speaker ensures excellent homogeneity and full sound in the key range from 2 to 4 kHz.

Transducers with Curv membrane

In the 3-way Diva 6 column, both the low-frequency and mid-frequency speakers feature membranes made of Curv material (polypropylene composite). The use of this type of solution in the bass transducer ensures more neutral and precise reproduction of bass tones. These membranes are produced exclusively for the Indiana Line company. The utilization of Curv membranes ensures that both the low and mid tones generated by the electroacoustic transducers in the Diva 6 column are exceptionally clean and natural. Furthermore, the unique properties of the Dual-Wave suspension emphasize the excellent sound of membranes made from this polypropylene composite.

Bass reflex in the base

The Diva 6 has a bass reflex enclosure with a port located in the base. This solution has allowed us to reinforce the energy of low frequencies without excessively boosting this range of the acoustic spectrum. Here we have tuning with a gently declining, yet low-reaching bass characteristic. The resonance frequency is set at a low 36 Hz. Thanks to appropriately selected woofers, captivating dynamics and fast bass, as well as excellent control, have been achieved, even when playing electronic recordings with clearly emphasized low tones. The advantage of a bass reflex port directed towards the ground compared to a front bass reflex is also that resonances and noises generated by the port are much less audible. Considering the undeniable advantages of the bass and midrange of the Diva 6 model, this is of considerable importance.