FM ACOUSTICS does not need superlatives in product descriptions but all experts who have experienced the new FM 133 & FM 233 Linearizers react the same way:


• "This is a revolution, a true breakthrough".
  
  
• "This is the most spectacular improvement of music - in fact of any audio source - in the last 40+ years".
  
  
• "A tremendous achievement"
  
  
• "The most important component of any decent Audio and AV system"
  

      Today, the major limitation in audio reproduction is no longer so much the quality of reproducing equipment. The most limiting factor are the many mediocre sounding sources, be they CD's, DVD's, LP's, Tapes, Shellacs etc.

Whatever the audio system, its reproduction is only as good as the source. There has been a profound lack of equipment that allows the restitution and improvement of music sources.
Until now.

The FM 133 & FM 233 Harmonic Linearizers allow precise correction and linearization of non-optimal recordings. They do this in an absolutely unique way. The entire audio signal passes direct through without any negative influence but at the same time the audio signal can be linearized! Massive improvements in the quality of CD, DVD, Tape, LP and any other source are now reality.


• The dream of musicians, engineers and music lovers has become true: the ultimate goal of being able to correct errors without negatively affecting the audio signal and literally let the signal pass directly through without any negative influence has finally become reality
  
  
• Unique linearization of source signals improves reproduction of any kind of audio, movie, AV or music system
  
  
• The FM 233 features FM ACOUSTICS' true balanced input and output circuitry with a guaranteed CMRR of 100 dB (100-1000 times better than other so-called "balanced" equipment).
  
  
• The FM 133 is for use with single ended equipment
  
  
• Unbalanced and pseudo-balanced signals are automatically balanced right at the input of the FM 233, which is the correct choice for balanced interfacing
  
  
• Tremendous headroom and reserves in input signal handling capability (+21dBv!)
  
  
• Special centered linearizer controls
  
  
• Sensors in the truly balanced outputs of the FM 233 automatically optimise performance for balanced or unbalanced loads
  
  
• The FM 133 and FM 233 can be connected to single-ended, pseudo-balanced and true balanced equipment
  
  
• Fully discrete circuitry using special curve-tracer analysed and listening-selected semiconductors
  
  
• Zero overall feedback/feed forward
  
  
• Outputs drive any load and long cables with perfect stability
  
  
• Switchable tape loop function on the FM 133
  
  
• Dedicated low impedance power supply
  
  
• Individual stabilisation inside each module
  
  
• Hand-selected and individually matched components of DIN, IEC & MIL standard
  
  
• Totally modular concept, guaranteeing that the FM ACOUSTICS Harmonic Linearizers do not become obsolete
  
  
• Proprietary enhanced Class A circuitry throughout
  
  
• Can be installed in any system thanks to easy in-line or tape loop connection
  
  
  
  They work in any system! Two connection possibilities for home systems:
  a) in the preamplifier tape loop (top part of drawing)
  b) in-line between preamp and power amp (bottom part)
  
  In professional applications various routing/connections are possible
  
  
  

      After a tremendous research program and after dozens of rejected circuit topologies, the combination of several ingenious ideas brought the final breakthrough: with the new Harmonic Linearizers the improvement of any type of source signal is now possible. The FM 133 & FM 233 are universally usable in any system and bring astounding improvements in any professional or domestic application where audio is involved.

The dream and ultimate goal of musicians, engineers and music afficionados has finally become reality: be able to correct errors and weaknesses in music recordings and film/DVD sound and do this without any negative effect on the original signal!

• It is quite an experience to be able to improve cheaper pressing of LP's to the level of - and sometimes better than - the best (and often rather expensive...) early stamper pressings!
  
  
• Or, to make a standard pressing sound equal to or even better then the best of the special audiophile pressings, half speed masters, direct disks etc!
  
  
• Or, to be able to create one's own masters (CD's) improving the original!
  
  
• Or, linearize the reproduction of movie sound and achieve much better intelligibility and realism!
  
  

The FM ACOUSTICS Harmonic Linearizers are designed as tools, not toys. They are for sophisticated recording and mastering engineers, libraries, experienced collectors, movie afficionados and listeners who realize that by far not every source was recorded and/or mastered carefully enough.

If you are interested in a future presentation of the FM 133 & FM 233 Harmonic Linearizers in your area, please advise us. You will be contacted in due time.