SITARA 25

SITARA is the youngest member of our successfully revamped High End product range. With its elegant and graceful design, the loudspeaker is a piece of art that will make bold statements about your taste and style. The qualities of the SITARA can be fully enjoyed in rooms of up to 25 m2. However with the help of one or two subwoofers, the loudspeaker is equally capable of giving a brilliant performance in much larger rooms.

 

Active Cone Damping

Active Cone Damping (ACD) was first developed and implemented by Audio Physic in order to avoid resonances associated with metal cones. A silicone/rubber ring is mounted on the outer ring of the cone where it directly applies pressure on the cone. This is a highly effective means to eliminating the otherwise unavoidable ringing and therefore removes the metallic sound.

Push Push

Audio Physic's three-way and three-and-a-half way loudspeakers are equipped with side firing woofers. Even when applying large-diameter cones, our loudspeakers keep a narrow baffle design which allows for the superb spatial imaging Audio Physic loudspeakers absolutely excel at. Compared to the configuration often used nowadays where the woofers are mounted only on one side, Audio Physic prefers to arrange them on both sides of the cabinet. The drivers are operating in phase (all woofer cones move simultaneously in the same direction, either inwards or outwards). Forces acting on the cabinet are nearly cancelled out with this effective – so called push-push configuration – and precise, low-resonance sound reproduction is achieved. However, the push-push configuration must not be confused with the push-pull principle commonly used for power amplifiers.

Vibration Control Terminal :: VCT

A negative impact from unwanted resonances on the transmission of signals can be detected at each point of the reproduction chain. The use of high-quality and stable rack systems as well as special stands, feet or bases may often yield astonishing results.

However, no attention was paid to another important path of mechanical mischief-makers. Cables – necessary to transmit the signal – not only carry electrical signals, unfortunately they also carry mechanical energy which moves at its strongest in the opposite direction to the signal. Therefore, vibrations picked up and measured on a loudspeaker cabinet can be followed back to the source of the signal. Audio Physic has developed the Vibration Control Terminal in order to eliminate such unwanted vibrations. The massive aluminium construction is additionally damped and fitted with a neoprene gasket for elastic suspension ensuring that the binding posts are effectively decoupled from the cabinet.

Hyper-Holographic Cone Midrange Driver (HHCM)

Hard shell – soft core: an awesome midrange driver and exclusive design by Audio Physic!

It has been commonplace for many years to manufacture driver baskets consisting either of plastic or metal. However there is a well-known German proverb saying that double stitching lasts longer.

We took this to heart, doubled our efforts and designed the hyper-holographic cone midrange driver, HHCM in short, a novel basket construction using a combination of aluminium and plastic. Aluminium is stiff and conducts heat better than plastic material which, in turn, allows for a much higher internal damping. Both characteristics are important in loudspeaker manufacturing. Provided that the two materials are efficiently combined, their properties complement each other in such a way that damping of resonances is perfectly coupled with mechanical and thermal stability.

The two materials are used where they do their best in what they are best at doing. Moving parts such as the diaphragm, the surround, the centering device and the voice coil are held in proper alignment by a plastic inside basket designed to achieve a maximum degree of damping inside (marked in red in the illustration). The powerful neodymium magnet is encased in an outside basket made of die-cast aluminium.

Let us look at the advantages: the generated heat is efficiently dissipated by extensive cooling fins whereas remaining vibrations are transmitted to the mounting ring via slim stiff bridges.

Such a double-basket construction makes a lot of sense. Basket and cabinet resonances are effectively kept away from the driver diaphragm while at the same time the thermal behaviour of the midrange driver significantly improves.

Special attention is also given to the aluminium diaphragm itself which takes full advantage of Active Cone Damping II implemented to avoid ringing resonances frequently associated with stiff diaphragms. A U-shaped elastic ring is designed to fit snugly around the rim of the cone, causing the diaphragm to tighten. Therefore, resonances having an adverse effect on the sound quality can be prevented right from the start.

All these measures have only one goal in mind: to achieve a perfect marriage of ultimate resolution performance and absolute freedom from coloration.

In addition to achieving outstanding measurement results, the HHCM truly lives up to its name, reaching a superior subjective level of reproduction quality.

Never before has music been reproduced with such holographic quality!
 

 

1. Aluminium diecast frame with integrated heat sink, 2. Dual neodymium magnet system, 3. Plastic inner basket optimised for high internal damping, 4. 1.25" voice coil on black glass fiber bobbin, 5. Conex spider, 6. Ceramic coated aluminium cone with Active Cone Damping II,
7. Solid, anodised aluminium phase plug

 

Hyper-Holographic Cone Tweeter II (HHCT II)

The tweeter that you can’t hear!

Back to the Future II

Cone tweeters, notorious for being used in cheap loudspeakers picked off the supermarket shelves, went out of fashion years ago. New light weight, soft materials were implemented to reduce the overall moving mass, however these materials also required a new geometry to ensure stiffness and stability: The dome. With the introduction of new, stiff and yet lightweight materials, the use of dome-shaped tweeters is becoming questionable. Soft domes tend to wear out at an early stage where the movement at the rim is different from the movement occurring in the interior zone. As a result, the dome starts "to ring” where it adds its own audible colorations to the signal. Instead of hearing the music, you hear the sonic signature of a ringing tweeter. Light, stiff membrane material does not need to struggle with the tradeoffs involved in using domes – therefore, in the case of midrange drivers, the use of domes has practically dissolved into thin air over the past couple of years. AUDIO PHYSIC took the next logical step by further exploring the subject of cone membranes in tweeter systems. Already the first samples convinced the audience with their holographic reproduction displaying an unparalleled degree of plasticity.

 

 

 

 

Teknik Özellikler:

2½ yollu
Woofer : 1 x 150mm HHCM
Mid-Woofer : 1 x 150mm HHCM
Tiz : 1 x 39mm HHCT II
Empedans : 4ohm
Hassasiyet : 89dB
Frekans Aralığı : 38Hz-33kHz
Önerilen amfi gücü aralığı : 20-120W
Yükseklik x Genişlik x Derinlik : 980x147x220mm
Ağarlık : 17kg
Renk Seçenekleri : Cherry , Black Ash , Walnut , Maple
Özel Renk Seçenekleri : White Gloss , Black Gloss , Macassar Ebony

İNCELEMELER