JEFF ROWLAND Concentra Owner's Manual - page 4
Product Features
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Three balanced XLR inputs per channel plus three unbalanced (RCA)
inputs per channel.
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Preamp Out in both balanced XLR output and unbalanced (RCA)
outputs per channel.
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Tape input and output jacks allow tape recording from any source and
monitoring of tape recorder output.
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Rear panel handles assist moving and transport of unit.
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Chassis and all chassis components, precision machined from 6061
aluminum plate, reduce distortion resulting from mechanical resonance
and thermal instabilities.
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All operational functions under microprocessor control. Within five
seconds of any function selected, the microprocessor reverts to a non-
clocking “sleep” mode which eliminates any possibility of digital noise
contamination.
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Non-multiplexed, zero electrical noise generating numerical display
indicates volume level over entire range of 99.5 decibels.
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‘Display off after five seconds’ option available for non-intrusive, low
light listening environments.
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Dual range volume control allows large volume level changes when
knob is rotated abruptly, yet permits precise small volume level changes
when knob is rotated slowly.
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Optional plug-in phono cards (installed internally) convert Line Input 1
to high performance phono inputs. Four gain and input loading options
standard for moving magnet and moving coil cartridge types.
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Full electronic and thermal protection modes guard against output
overloads and short circuits.
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High current preamp outputs (balanced XLR and unbalanced RCA)
allow simultaneous driving of external power amplifiers for subwoofers,
vertical bi-amping, etc.
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All inputs are transformer-coupled to provide maximum immunity from
RF contamination and system ground loops and enhance compatibility
with a wide variety of interconnected components.
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Speaker outputs are fully balanced to provide maximum sonic
performance and immunity from RF contamination due to high output
common mode noise rejection.
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Optical encoder type volume control maintains quiet, trouble-free
performance and accuracy over entire lifetime of product.
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Six-function hand-held IR remote control.
Introduction / Product Features