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DESIGN PHILOSOPHY
10
To maintain “Precision Bias” requires an advanced bias circuit that must have a very high
degree of stability under a wide range of temperatures and load conditions. The usual
bias network is of such high impedance and poor thermal regulation that at the extremes
of operation, bias currents are ineffectively controlled. Advanced tracking techniques
results in absolute control of bias curents under all conditions in the Amplifier v10.
The main power supply of the amplifier consists of a 1000VA toroidal power transformer
with dual rectifiers to isolate one set of channels from the other. One hundred thousand
microfarads of total capacitance provide effective filtering.
The above attributes result in a amplifier of such extreme linearity and bandwidth that no
overall feedback correction is required or used. One advantage of this is a high degree
of immunity from interactions with loads or cables and a superior transient response. An
extremely low nonreactive output impedance is maintained well beyond 20,000 hz. The
resulting uniform damping factor is not usually found in other designs.
The Amplifier v10 has all structural parts made of machined aluminum which are milled
to very close tolerances yielding the seemless appearance characteristic of previous
products from Coda. As with all Class A/AB amplifiers, heat dissipation is important. The
Amplifier v10 uses two massive heat sinks for efficient, noiseless, and clean thermal relief.
The thermal coefficient of the heat sinks is one of the lowest and most effective in the
audio industry.