Beschreibung
Mark Levinson NO585.5 Integrated Amplifier - NO585.5Building on the international success of the celebrated Nº 585 integrated amplifier, the Nº 585.5 incorporates the same discrete class A Pure Phono stage found in the award winning Nº 526 preamplifier. With unsurpassed analog design, advanced digital audio capability, extensive control and a robust 200 watts per channel, the Nº 585.5 delivers exceptional system performance.Key Features:Pure Path Phono pre amp – a discrete design with no op-amps and operates exclusively in class A throughoutFixed-gain moving magnet (MM) section with five capacitive cartridge-loading settingsMoving coil (MC) section with three gain settings and 10 resistive cartridge-loading settingsUltrasonic filter intelligently compensates for rumble and warpingHigh resolution sound from class A/B ampsDiscrete analog circuitry throughout4 analog inputs6 digital inputs: USB, AES/EBU, S/PDIF32-bit/192khz performance, including DSD over PCM via USB 80 Hz high-pass option allows proper operation of a 2.1-channel systemEthernet, RS-232, IR and 12V trigger portsMark Levinson extruded aluminum remote200W at 8 ohms; 300-350W at 4 OhmsDesigned and handcrafted in the USAFeatures:EvolutionThe Mark Levinson Nº 585 has swept up best in class awards and countless accolades around the world, and is now widely regarded as perhaps the finest integrated amplifier ever made. Now, the Nº 585.5 redefines the playback quality of a classic medium; by adding the same Pure Phono stage found in the award winning Nº 523 and Nº 526 preamplifiers taking the reproduction of any source material to new heights of realism.ArchitectureThe foundation of the No 585.5 is its fully discrete, mirror-imaged, dual-monaural analog circuitry featuring individual signal switching relays for each of its five stereo inputs: one XLR and three RCA plus a Stereo Pure Phono stage. Volume controls use discrete R2R ladders and low-noise analog switches for the widest possible bandwidth and maximum signal integrity. The fully-differential Class AB power stage includes an oversized 900VA toroidal transformer with individual secondary windings for the left and right channels.AmplificationEach elegantly simple amplifier channel utilizes twelve output transistors and multiple smaller local capacitors that allow them to be placed physically closer to the amplifiers for greater transient response when power is needed immediately. This robust architecture results in a conservative power rating of 200W per channel. System integration and expansion are possible using the stereo RCA pre-outs which can operate full-range or with an included switchable, second-order, 80Hz crossover filter allowing for seamless integration into 2.1-channel systems with powered subwoofers.Pure Phono: Class A for a Classic MediumThe Pure Phono stage is a discrete design with no op-amps and operates exclusively in class A throughout, employing tantalum nitride thin-film resistors and polypropylene capacitors with exceptionally low tolerances.A fixed-gain moving magnet (MM) section with five capacitive cartridge-loading settings, and a moving coil (MC) section with three gain settings and 10 resistive cartridge-loading settings ensures optimization for any cartridge. And an ultrasonic filter intelligently compensates for rumble and warping. The Pure Phono stage also contains physically separated channels and balanced inputs for sonic purity.Audio ChassisBuilding upon this superb analog platform, the Nº 585.5 adds equally outstanding digital audio capability. An ESS Sabre 32-bit O/A convertor with proprietary jitter elimination circuitry and fully balanced, discrete IN circuitry forms the heart of the digital audio processing stage. Six digital audio inputs are provided including one AES/EBU, two coaxial and two optical plus a USB audio processor capable of asynchronous data transfer of high resolution DSD and PCM files at up to 192kHz/32 bits resolution. For low-resolution audio formats, proprietary Clari-Fi signal processing reconstructs information and bandwidth lost in compressed file formats restoring them to higher fidelity.ControlSystem integration and communication ports include Ethernet, USB, RS-232, IR input, and 12V trigger input and output. An iconic Mark Levinson custom cast aluminum system IR remote is included with the Nº 585.5.ConstructionThe chassis of the Nº 585.5 utilizes card-cage architecture to isolate critical low-level analog and digital circuitry from the power supplies and amplifier modules. The steel and aluminum construction features internal amplifier heatsinks and Mark Levinsons iconic black and silver anodized aluminum front panel with its intuitive twin-knob control system and unique red display. A newly designed 3-piece anodized brushed aluminum top cover exudes durability, elegance and quality.Specifications:Phono StageRIAA frequency response: 20Hz to 20kHz, ±0.3dBInfrasonic filter defeatable, 15Hz, 2nd order (12dB/octave)Moving Magnet modeInput resistance: 47kInput capacitance: selectable; 50, 100, 150, 200, or 680pFGain: 40dB @ 1kHzTHD+N, 20Hz to 20kHz, 2VRMS output: <0.03%Moving Coil modeInput resistance: selectable; 20, 33, 50, 66, 100, 200, 330, 500, 1000, or 47kInput capacitance: 50pFGain: selectable; 50, 60, or 70dB @ 1kHzTHD+N, 20Hz to 20kHz, 2VRMS output: <0.02%, 50 or 60dB settings, <0.04%, 70db settingAmplifier SectionOutput Power: 200W RMS per channel @ 8 Ohms, 20Hz – 20kHzDamping Factor: >400 @ 20Hz, referred to 8 OhmsFrequency Response: 20Hz – 20kHz, ±0.13dB; 2Hz – 250kHz, +0.2dB/–3dBSignal-to-Noise Ratio: >98dB (20Hz – 20kHz, unweighted); >103dB (20Hz – 20kHz, A-wtd), referred to full output – maximum volume settingVoltage Gain: 40.7dB (maximum volume setting)Total Harmonic Distortion: <0.01% @ 1kHz, 200W, 8 Ohms; <0.1% @ 20kHz, 200W, 8 OhmsPreamplifier SectionAnalog:Input Impedance: >45k Ohms (RCA & XLR)Input Overload: >5.5V RMS (RCA & XLR)Digital:DAC Board - same as No 585DAC output voltage @ full scale (0dBFS): 3.7V RMSDAC frequency response: 20Hz to 20kHz, +0 / ¬–0.2dBDAC THD, full scale (0dBFS): <0.0001% @ 1kHz, <0.0003% @ 20kHzDAC SNR (referred to 3.7VRMS / 0dBFS output): >120dB (A-weighted)PCM sample rates/bit depth: 32, 44.1, 48, 88.2, 96, 176.4, or 192kHz; up to 32 bitsDSD: Native or DoP (DSD over PCM), single- and double-speed (2.8 and 5.6MHz)Approximate Dimensions:Height: 7.6Width: 17.1Depth: 19.95Approximate Weight:Unit: 74 lbsShipping: 94 lbsWarranty Information:Manufacturer Warranty (authorized online retailer): 5 Years LimitedCalifornia customers: Proposition 65 WARNING
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