cornerstone of Nexaiõn Audio's products is a truly
new power amplifier using innovative circuit topology. Not
an adaptation of an existing design, it offers exceptional
performance on par with the best and most expensive units
on the market today. This new circuitry offers an evolutionary
approach to the task of driving loudspeakers and translates
into superior sonic properties, dispensing with the principles
of global voltage feedback, common in today's amplifiers.
of the transistor amplifiers available today are, for the
most part, variations of older circuits that originated
in the 1970's. Using the same basic circuit topology, featuring
slight modifications in the input, output or gain stages,
most audio power amplifiers are discrete copies of monolithic
voltage feedback operational amplifiers like the 4136 or
the famous 741, but somewhat scaled down to reduce the transistor
count and price.
of the higher priced units on the market do achieve some
remarkable performances through the use of some clever design
techniques but at the expense of greatly increased circuit
one reads the technical documentation that accompanies audio
power amplifiers, they all start to sound very much alike.
Most manufacturers would like the consumer to believe that
their equipment is better based solely on the care and attention
to detail that goes into the construction of the amplifier.
Some try to set their components apart from the competition
by virtue of the number of output transistors, or by the
amount of filtration and power reserve of their power supply.
Some even credit the use of some brand of resistors, capacitors
or "pseudo-proprietary" output devices to explain the superior
sonic quality of their amplifier. Better and stricter component
selection and increased power supply reserve have definite
benefits but they are also receiving too much unmerited
hype. At the end of the day all these systems basically
rely on the same voltage feedback design that originated
in the 1970's.
an entirely new approach to building an amplifier, Nexaiõn
Audio's amplifier topology is a fast amplifier coupled with
a very large bandwidth creating exceptional sound quality
as good as the best and higher-priced systems available
having a good basic amplifier design does not guarantee
that the final piece of equipment will perform to the original
design expectations. Areas such as component selection,
circuit board layout, high current wiring and thermal design
must be considered carefully. Because of their background
and practical experience Nexaiõn Audio engineers
are well qualified to implement a quality amplifier.