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Stereo Power Level/Line Level Amplifier
| Regular Price: | $ 16,000.00 / each |  | | Your Price: | $ 12,800.00 / each | | You Save: | $ 3,200.00 / each |
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Warranty and considerations: |
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| Warranty Terms (Parts and Labor) |
3 years |
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Esoteric has introduced a tube amplifier that can be used as a direct stereo
power amplifier or as an integrated (line level), power amplifier. This new
hybrid technology incorporates proprietary circuitry and "cutting edge" tube
technology.
The A-100 provides a minimum of 45 watts per channel power output from
KT-88's in UL-push/pull operation driven with a direct coupled cathode follower.
The cathode follower and voltage amplification stage is directly coupled to form
a triple stage combining a variable self-biasing system and a zero voltage
control system. The bias system used is an advanced active biasing
circuit. This system compensates for fluctuations in bias voltage as
supplied to the output stage by detecting cathode current and output level
demand. This bias control implementation improves linearity and
performance of the output stage by maintaining optimum voltage control. The
innovative zero voltage control system stabilizes the cathode follower DC output
level to improve operation of directly-coupled circuit components. This occurs
in an end to end process from the driver stage to the output stage. Both of
these circuits combine to improve the stability and the clarity of the
amplifier's output.
The A-100 features a newly designed custom output transformer designed to
achieve highly delicate and precise musicality. The amplifier uses specially
treated copper foil as the 2nd order coil. This design maintains very tight
coupling properties between the 1st order coil. All stages except the KT-88 are
powered by fully stabilized power supplies. With this innovative power supply
design, the A-100 reproduces an exceptionally deep and finely detailed
soundstage.
All tubes except the KT-88 are DC heated. Hum noise is reduced by this heater
design. Power supply and output transformers are held by an extremely rigid 'H'
structure and circuit components reside in a block configuration surrounding
this mainframe design. The massive chassis construction isolates unwanted
vibrations and resonance between circuit components and power supplies.
The A-100 is designed for pure power amplification but it also works as an
integrated (line level), amplifier by selection from an operating switch on the
rear panel designating DIRECT or LINE IN. LINE IN mode activates an input
selector (RCA x3 / XLR x1), and also a high quality volume control. For LINE IN
operations an illuminated remote control is included.
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