Products that truly provide lasting value is the philosophy of FM ACOUSTICS. The Classic Series amplifiers emphasize this characteristic and provide excellent value for investment.
The goal of the design of the Classic Series was to achieve natural sonic and optimal technical performance. Described "...as warm as the best tube amplifiers but with true bass control, dynamics and much better high frequency extension..." the Classic Series provides entirely natural, musically correct reproduction.
Ruggedly constructed, they are reliable. They are fully stable with any known speaker load (including electrostatics). They provide unmatched music reproduction without the typical limiting, compression, clamping or other negative influences on the audio signal that are generated by the usual amplifier protection systems. They have a safeguarding system that protects from abuse and fault conditions.
Music is reproduced with uncanny naturalness.
The Classic Series is completely hand crafted by experienced craftsmen who work under relaxed (no time pressure) conditions. This eliminates any stress or errors during manufacturing.
Important points to guarantee optimum performance are the fine tuning and calibrating of each individual amplifier stage. All parts of each amplifier are individually pretested and components are pre-selected by hand on testing apparatus specially built for this purpose.
This care results in unmatched reliability and long-term stability.
Contrary to other designs, FM ACOUSTICS precision power amplifiers do not sound harsh when driven into clipping (it must be remembered, however, that in any audio device linearity is only obtained below clipping).
Compared with amplifiers of similar power ratings, the Classic Series amplifiers drive speakers effortlessly to higher levels than the rest. Actual SPL differences of between 2 and 8 dB have been documented. This astounding distortion-free SPL increase is just one of the many factors that clearly demonstrate the remarkable superiority of FM ACOUSTICS' power amplifiers.
Like every product made by FM ACOUSTICS the Classic Series is immaculately hand-crafted. Every part of each amplifier is individually pretested and most components are pre-selected by hand on
testing machines specially built for this purpose. All active devices are selected on curve tracers in five different measurements and are used only in perfectly matched sets.
To guarantee outstanding performance and no unit to unit variation, amplifier stages are fine-tuned and hand-calibrated for optimum performance.
This extremely time-consuming procedure is done prior to a heavy-duty, high-power burn-in test. Here the amplifier is run under most demanding conditions for a minimum of 1000 thermal cycles (minimum 200 hours!). After this severe burn-in test, every single amplifier is placed on a shake table where it is subjected to tortuous vibrations for a minimum of 60 minutes (50'000 vibration cycles). Then it is moved back to another test-bench where the amplifier's performance is totally rechecked.
All curves and data are compared to the initial test report. The amplifier is only final tested if the performance has remained exactly the same. If even the slightest deviation is found during the burn-in or vibration test, the amplifier is totally re-analysed, then re-checked and required to again pass the full burn-in and vibration tests.
These procedures result in unmatched reliability and long-term stability.
With decent electronics and speakers, the Classic Series will provide performance far superior to other makes. They drive the most difficult loads without any form of limiting, compression or other negative influences on the audio signal.
Words cannot describe the astonishing improvements achieved when replacing another power amplifier with an FM ACOUSTICS. The more accurate the system, the more dramatic the improvement in reproduction accuracy. Once the difference is experienced, it is difficult to go back to other power amplifiers.
With the Classic Series, FM ACOUSTICS reinforces its commitment to continuous implementation of results from advanced Research and Development and to provide products that serve the client with superb price/performance relation.