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THE CONCERTO PREAMPLIFIER REFLECTS THE SUM TOTAL KNOWLEDGE GAINED FROM OVER TWENTY YEARS OF JEFF
ROWLAND DESIGN GROUP'S AMPLIFIER AND PREAMPLIFIER DESIGN EXPERIENCE. SONICALLY, THE CONCERTO RESTS
AMONG EQUALS AMIDST THE HIGHEST-QUALITY UNITS AVAILABLE. THE CONCERTO OFFERS A SIMPLE FEATURE SET
FOR EASE OF USE WITH A LARGE, HIGH VISIBILITY DISPLAY FOR VOLUME LEVEL INDICATION. THE ENTIRE CHASSIS
IS MILLED FROM A SOLID, MASSIVE BLOCK OF 6061 ALUMINUM TO PROVIDE A VIBRATION-FREE AND EMI RESISTANT
ENCLOSURE FOR SENSITIVE AUDIO CIRCUITRY.
DUAL, BALANCED LINE-LEVEL OUTPUTS, TRANSFORMER COUPLED BALANCED AND UNBALANCED INPUTS, AND PREAMP
BYPASS INPUTS ALLOW UNPRECEDENTED COMPATIBILITY WITH VIRTUALLY ANY A/V COMPONENT IN BOTH STEREO
AND MULTI-CHANNEL INSTALLATIONS. THE MOST COMMONLY USED FEATURES OF THE PREAMPLIFIER CAN BE
CONTROLLED WITH AN EASY TO USE, SIX FUNCTION, HAND-HELD IR REMOTE CONTROL. A DUAL RATE VOLUME
CONTROL ALLOWS PRECISION LEVEL ADJUSTMENTS OVER NEARLY A 100 dB RANGE. THE VOLUME CONTROL
INCORPORATES A PERMANENTLY NOISELESS OPTICAL ENCODER THAT WILL ALWAYS MAINTAIN ITS TACTILE FEEL,
ACCURACY, AND CHANNEL BALANCE AT ALL SETTINGS. MODERN INSTRUMENTATION AMPLIFIER CIRCUITRY ALLOWS
AN EXCEPTIONALLY LOW NOISE FLOOR, REVEALING PREVIOUSLY OBSCURED INFORMATION, DETAIL, AND
MICRODYNAMICS FROM ALL PROGRAM MATERIAL.
THE CONCERTO IS EQUALLY CAPABLE AS THE CENTERPIECE OF A SIMPLE, ENTRY LEVEL STEREO OR A
COMPLEX, COST-NO-OBJECT HOME ENTERTAINMENT SYSTEM.
Specs
Overall Gain : 20 dB Common Mode Rejection
Ratio: >90dB, 20 Hz 20 kHz
Gain Range: 99.5 dB, 199 Equal
Increments Input Impedance: 40K Ohms Balanced or
Unbalanced
Gain Resolution: 0.5 dB, +/-0.03 dB Over
Entire Range Channel Separation: >90 dB, 20 Hz to 20 kHz
Frequency Response: 10 Hz - 280 kHz, -3 dB Inputs: 2 x Pair Balanced XLR, 1 x
Pair Balanced Unity Gain
(Bypass), 3 x Pair
Unbalanced RCA
Maximum Input Level: 15 volts RMS at 0 dB
Gain Outputs: 2 x Pair Balanced Line
Level
Maximum Output Level: 13.5 volts RMS Power Consumption: 7 Watts
Output Noise Level: 43 Microvolts,
Unweighted, 20 Hz to 20
kHz Bandwidth, 0 dB Gain Weight: 21 lbs./9.8 kg
CCIF Intermodulation
Distortion:
19/20kHz <.002%
Dimensions: 3.2 x 17.3 x 12.25
Because Jeff Rowland Design Group is constantly analyzing new design improvements, we reserve the right to change or
modify product specifications without notice or obligation.
