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The Legacy PowerBloc2 is the most exquisite 2 channel amplifier we have
built. A balanced interconnection is provided to take advantage of the
greater noise rejection it provides. Differential voltage gain throughout
provides exceptional rejection of external noise and contributes to the
inherent DC stability of the external noise and contributes to the inherent
DC stability of the circuit. This allows direct coupling without servo circuitry.
The unit also uses output followers operating without feedback.
The front end is designed to provide a slew rate of 50 V/us without
entering Class B operation as is common in many other designs. This, in
combination with excellent high frequency design, insures linear operation
at high speed. The supplies take a very direct approach to high
performance. A top quality 1700 VA toroidal transformer and 80,000 uF of
total capacitance with very-low ESR and inductance are used in the power
supply. Each High Current uses 36 individual output transistors with a
linear bandwidth of 10 MHz.
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