ισως η εξηγηση να ειναι εδω
αν στην θεση του cd βαλουμε ενα προβολεα
Say something. Go ahead, say anything. Now cover your ears with your hands and say the same thing again. Sounds different, doesn't it? "Of course," you say, "my ears are covered!" Of course, you're right, but what you're still hearing are vibrations being transmitted directly from your voice box - the tissue of your body is absorbing and releasing the energy from your throat to your ears. Now play something on your audio system and cover and uncover your ears. Even with ears covered you are still able to hear the music directly through the air from the speaker. In addition, some vibrational energy may be reaching you through the floor and chair in which you are sitting.
Your CD or DVD player is like your body and the equipment stand is like your chair. As the system plays the chassis is absorbing the radiated energy through the air and the conducted energy through the floor and stand. The chassis starts to resonate and conducts these vibrations into the CD disc, the player's electronic circuitry and the mechanical parts. As these parts vibrate the musical information the player is reproducing becomes contaminated. Jitter in the digital bitstream increases, microphonics from the electronic circuits and mechanical parts induce a "ghost" image over the original music wreaking havoc with tonality, pace and rhythm as well as increasing the noise floor.
The recordings that you play on your audio system have captured a musical event and contain the unique and fragile interplay of instruments. To play back these recordings with maximum fidelity we must ensure that our audio systems do not alter the musical signal. Anything, which is added or taken away from the content of the original recording, is distortion. Resonance and vibration have an audible effect on the musical signal that takes us further away from the faithful recreation of the musical event.
Each musical instrument captured in the recording has its own unique resonance. That is what makes a violin sound different than a cello and indeed what makes one violin sound different from another. The choice of the actual instruments used and their combination during the musical passage is a very serious matter to the composer, arranger and musicians. The interplay of the instruments, including their unique resonance signatures, is vital to convey the ensemble's musical ideas. The playback system, however, is not a musical instrument. Its function is to play back many different recordings of many different instruments. A playback system which has its own resonant signature it will color every instrument which it tries to reproduce. The most faithful playback system will not exhibit resonance and reproduce only what is contained in the recordings - nothing more and nothing less.
How do we best control unwanted vibration and resonance? We must eliminate harmful vibration and resonance at the playback components. Individually isolating each component in the system to eliminate the harmful effects of loudspeaker vibration, AC & heating systems, traffic, etc, allows the music to be heard uncompromised by vibration and resonance. This is Bright Star's Ultimate Isolation Theory.
Bright Star Audio's Ultimate Isolation System creates an environment of high mass and high absorption and shielding around each component for the highest degree of vibration control. The Ultimate Isolation System consists of an IsoRock / Little Rock combination or an Air Mass / Big Rock / Little Rock combination with Air Mass placed on the shelf, a Big Rock placed on the Air Mass, next is the component with a Little Rock set on top. The Air Mass/Big Rock combination has the ability to absorb a huge amount of energy without saturating - effectively dissipating unwanted vibration from below and draining harmful resonance. The Little Rock's high mass stiffens the component making it repel air-borne vibrations while firmly coupling it to the Big Rock. Eliminating vibration and resonance has a profound effect: imaging, tonality, dynamics, low frequency extension, detail, clarity, pace, and dimension are all enhanced. In fact, every aspect of musical reproduction is significantly improved!
Bright Star vibration control products have been nominated by Stereophile for Accessory of the Year, Editor’s Choice by Fi Magazine, The Academy for the Golden Note Award and rated Best of the Year by The Abso!ute Sound. The patented Big Rock has received Bound for Sound's Component of Merit, the Golden Note Award nomination from The Academy, was nominated for Accessory Of The Year by Stereophile and rated Cream Of The Crop by The Abso!ute Sound. Bright Star's Isolation Series has earned numerous industry design and engineering awards.
Barry Kohan, President
Bright Star Audio
