It is a special breed of speaker offering extraordinary, compellingly realistic audio reproduction. The magical sound of Soltanus acoustics electrostats results from a uniquely fast, super light-weight diaphragm capable of instantaneous movement that creates sound with unflinching accuracy. Additionally, a single electrostatic driver is capable of reproducing the entire frequency range where human
hearing is most sensitive to (the entire human voice spectrum) the delicacy and richness of sound. This unique technology assures that what you hear is faithful to the original recording by eliminating the need for complex crossovers and multiple driver arrays (which cause distortion). Listen to any Soltanus acoustics electrostatic speaker and the difference will be immediately apparent. Electrostatic speakers have three basic parts: the stators on the front and back (the black screens), a super-thin visually transparent electrostatic diaphragm, and spacing spars that suspend the diaphragm in the middle. Your amplifier’s signal is applied to the stators to create an electrostatic field that moves the diaphragm and excites the air, creating the legendary ESL sound. Technology: Electrostatic Advantages
Advantages of electrostatic loudspeakers include levels of distortion one to two orders of magnitude lower than conventional cone drivers in a box, the extremely light weight of the diaphragm (8-28 times thinner than the human hair) which is driven across its whole surface, and exemplary frequency response (both in amplitude and phase) because the principle of generating force and pressure is almost free from resonances unlike the more common electrodynamic driver. Musical transparency can be better than in electrodynamic speakers because the radiating surface has much less mass than most other drivers and is therefore far less capable of storing energy to be released later. For example, typical dynamic speaker drivers can have moving masses of tens or hundreds of grams whereas an electrostatic membrane only weighs a few milligrams, several times less than the very lightest of electrodynamic tweeters. The concomitant air load, often insignificant in dynamic speakers, is usually tens of grams because of the large coupling surface, this contributing to damping of resonance buildup by the air itself to a significant, though not complete, degree. Electrostatics can also be executed as full-range designs, lacking the usual crossover filters and enclosures that could color or distort the sound. Since many electrostatic speakers are tall and thin designs without an enclosure, they act as a vertical dipole line source. This makes for rather different acoustic behavior in rooms compared to conventional electrodynamic loudspeakers. The line-source emulates the staging you heard in the concert hall. So the sound field is lifelike realistic. Generally speaking, a large-panel dipole radiator is more demanding of a proper physical placement within a room when compared to a conventional box speaker, but, once there, it is less likely to excite bad-sounding room resonances, and its direct-to-reflected sound ratio is higher by some 4–5 decibels. This in turn leads to more accurate stereo reproduction of recordings that contain proper stereo information and venue ambience. Planar (flat) drivers tend to be very directional giving them good imaging qualities, on the condition that they have been carefully placed relative to the listener and the sound-reflecting surfaces in the room. Curved panels have been built, making the placement requirements a bit less stringent, but sacrificing imaging precision somewhat. Why do Soltanus acoustics ESL-s also have woofers? Electrostatic speakers cannot reproduce deep bass (below 100Hz) as effectively as a cone woofer. Soltanus acoustics’s solution is a hybrid design that provides the best of both worlds—a high quality cone woofer to reproduce low bass and a single electrostatic driver to reproduce sound in the frequencies where human hearing is most sensitive to nuance. When you listen to Soltanus acoustics hybrid system you notice that, thanks to long research and developement, the harmony between ESL-s and active subwoofers is perfect. The Soltanus acoustics subwoofers are built solidly with high-density materials to minimize cabinet resonance and provide a foundation for the high-output woofers and high-current 250-watt RMS, 300-watt peak amplifiers. Additionally, the built in active control unit can give to you a flat acoustic response (both in amplitude and phase) in every enviroment in variety of pozitions ,relative to ESL-s. Soltanus acoustics woofers offers continously variable low-pass crossover between 40 and 1000 Hz, implemented with filter precision-designed for optimum attenuation slope and minimum group delay. This enables seamless integration with any Soltanus acoustics main speakers as well as with speakers from other manufacturers. The precision continously variable phase controller is essential for clean detailed and locationless bass, independently from woofers position in your room. Another reason for developing this controlling unit is that every loudspeaker has its own phase response, velocity, and of course distance from the listener. All frequencies have to reach the ear, at the exact time for correct reproduction. This phenomenon is mostly expressed when using woofer with electrostatic loudspeaker. Leaving this out of consideration is the reason of beliveing that a dinamic woofer can not be integrated with electrostatic system. At very low frequencies, all rooms exhibit a phenomenon known as room gain, which produces a mild bass boost. The smaller the room, the higher the frequency at which this starts. These low frequency level controls enables you to compensate for excessive room gain by cutting output in the 20- to 80-Hz range or, if you prefer, to accentuate the feeling of deep-bass energy by augmenting lowest frequencies. Although ports are a convenient and cost-effective way of increasing low-frequency output, they rely on resonant energy in a way that impairs bass quality. That’s the reason we do not use them. A good sealed system will exhibit less transient-blurring group delay while maintaining smooth, consistent response regardless of output level or voice-coil temperature. Listen carefully to the sound of a bass drum, and you'll hear the difference. Easy Set-Up and Integration with Any System
Audio and video products available today represent a confusing myriad of connection options and setting configurations. Understanding this complexity, Soltanus acoustics designed the subwoofers with an input architecture that easily integrates in both stereo and home theater systems.
