还有Densen 的DeMagic和DVDMagic
不知那个效果最好呢
DeMagic
Play a CD to improve the sound of your system!
Some years ago we discovered that a strong signal from a signal generator sent through
the signal path of an amplifier had a positive effect on the sound. A year later, having
experimented with complex signals, we found an algorithm of signals that gave a stunning
improvement in soundstage, transparency, details, musicality and dynamics for audio
systems.
The reason behind this is that the small magnets in the signal-path become, with time,
orientated in one direction. This produces a detrimental effect on the signal. The DeMagic
signal actually relocates the magnets, and thereby breaks the magnetic field and its negative
effect on the sound.
In 1997 the University of Seoul, Korea, carried out scientific tests that definitely proved the
theory behind the DeMagic signal. Today the DeMagic has been sold in more than 100,000
copies worldwide and has become a must for any serious audiophile and music lover.
It is okay to be sceptical, but once you have tried it you will not believe the effect.
The DeMagic is relatively inexpensive as well.
DVDMagic
Densen DVDMagic is the only hi-fi accessory of its kind capable of improving your system.
The DVD demagnetizes the sound system, and the difference is obvious to anybody, even
those who are not Hi-Fi enthusiasts.
Basically, the DVDMagic is a DeMagic in 5.1 digital surround. You place the DVDMagic in
your DVD player, set the volume to its normal level and press “play”. In approximately 3
minutes your Home Cinema System will sound much clearer, dynamic, detailed and transparent
than before.
DVDMagic cleans the entire signal path for the magnetism which builds up during playback.
The magnetism results in Magnetically Induced Distortion (MID), which degrades the
audio signal. The DVDMagic sends a series of complex algorithm signals which remove
the MID through your system. It may be the single most important purchase of Hi-Fi
accessories you will ever make!