C46 AUDIO CONTROL CENTER

c46 Audio Control CenterWith eight source input selections, one of them a balanced input, all fully assignableand programmable, plus separate processor loops for both listen and record sectionsand enough outputs, both balanced and unbalanced, to drive multiple amplifiers, theC46 Preamplifier is a control center that can easily coordinate even the most complexaudio system.Sonic integrity is enhanced through use of digital logic controlled electromagnetic switcheswhich provide the most reliable, lowest distortion signal switching in existence. Mastervolume control is accomplished through an ultra-precision digitally controlled attenuator,enhanced with Variable Rate Volume circuitry and adjusted through an optical rotaryencoder that results in resolution and tracking accuracy within 0.5 dB. The exclusiveMcIntosh equalization circuitry allows “tailoring” the sonic performance over 8 frequencybands and a separate programmable bypass control totally eliminates the equalizer fromthe signal path when not in use.Behind McIntosh’s signature black glass front panel, LED-driven Fiber Optic Light DiffuserPanels provide all illumination – reducing heat and power consumption and increasing thelighting’s life span many times over that of ordinary light bulbs.l e g e n d a r yProgrammable Balanced InputEight Programmable SourceSelectionsOne Main and Two Switched OutputsLogic Driven ElectromagneticSwitchingFiber-Optic Light Diffuser IlluminationExclusive McIntosh Eight FrequencyEqualizer CircuitInput Level MatchingSeparate Listen and Record InputSelectionDual Programmable Processor LoopsPrecision Digitally ControlledVolume AttenuatorBlue 16 Character VF DisplayGold Plated ConnectorsPrecision Resistors and CapacitorsWide Dynamic RangeRemote Power ControlData Output PortsFront Panel Headphone Jack

c46 Audio Control CenterSilent ElectromagneticSwitchingMcIntosh Silent ElectromagneticSwitches, located literally at the inputpanel, eliminate the need for audiosignals to travel through any internalwiring where it would be subject tonoise pickup. The state-of-the-artswitches consist of ruthenium contacts—the finest conducting material known—which are sealed within a glass tubecontaining an inert oxygen-free gas thateliminates all possibility of contaminationand results in a distortion-free switch thatnever needs cleaning. The glass tubeis enclosed within a multi-layer coppercoil, which provides the means to actuatethe switch and also provides additionalshielding.The entire assembly is finally encasedin a shock-absorbent plastic housing forprotection.FREQUENCY RESPONSE20Hz to 20kHz, +0 / -0.25dBTOTAL HARMONIC DISTORTION0.002% max. from 20Hz to 20kHzA-WEIGHTED SIGNAL-TO-NOISE RATIOPhono: 86dB, High Level: 97dBRATED OUTPUT VOLTAGE5 Vrms at balanced outputs2.5 Vrms at unbalanced outputsINPUT IMPEDANCEPhono, MM: 47K Ohms, 65pfHigh Level: 47K Ohms balanced22K Ohms unbalancedOUTPUT IMPEDANCE240 Ohms unbalanced480 Ohms balancedVOLTAGE GAINPhono to Tape Out: 40dBHigh Level to Tape Out: 0dBHigh Level to Main Output: 15dBMAXIMUM VOLTAGE OUTPUT10.0 Vrms unbalanced20 Vrms balancedSENSITIVITY (for rated output)High Level: 450mV unbalanced, 900mV balancedPhono: 4.5mVPOWER REQUIREMENTS120V 50/60Hz, 50 wattsDIMENSIONS (H X W X D)5 3/8” (13.65 cm) x 17 1/2” (44.45 cm) x 19”(48.26 cm) Panel clearance required in front ofmounting panel is 1 3/4 inches (4.5 cm) forconnectorsWEIGHT26 lbs. (11.79kg) net40.41 lbs. (18.33kg) boxedVRV (Variable Rate Volume)Digitally ControlledAttenuatorThe output attenuator controls volumeover 214 steps of .5dB each with accuracywithin .1dB. The volume vs. rotation ratevaries as preamplifier gain varies andattenuation changes occur at the zerocrossings of the audio signal to preventaudible artifacts during adjustment.FOR THE Consumer’sProtectionIn order to ensure the highest levelof customer satisfaction, “new” McIntoshproducts may only be purchased over-thecounteror delivered and installed by anAuthorized McIntosh Dealer.McIntosh products that are purchasedover the Internet, by phone or mail orderare presumed to be “used” and do notqualify for any McIntosh Warranty.McIntosh does not warrant, in any way,products that are purchased from anyonewho is not an Authorized Dealer or productsthat have had their serial numberaltered or defaced.35005100 C46To experience the legendary performance of McIntosh, please call on us at 1-800-538-6576www.mcintoshlabs.coml e g e n d a r y