Nº585.5

Nº585.5

Fully Discrete Integrated Amplifier with Class A Pure Phono Stage

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Product Specificaties

RIAA frequency response
20Hz to 20kHz, ±0.3dB
Infrasonic filter defeatable, 15Hz, 2nd order (12dB/octave)
Input resistance (Moving Magnet Mode)
47kΩ
Input capacitance (Moving Magnet Mode)
selectable; 50, 100, 150, 200, or 680pF
Gain (Moving Magnet Mode)
40dB @ 1kHz
THD+N, 20Hz to 20kHz, 2VRMS output (Moving Magnet Mode)
<0.03%
Input resistance (Moving Coil Mode)
selectable; 20, 33, 50, 66, 100, 200, 330, 500, 1000, or 47k
Input capacitance (Moving Coil Mode)
50pF
THD+N, 20Hz to 20kHz, 2VRMS output (Moving Coil Mode)
<0.02%, 50 or 60dB settings, <0.04%, 70db setting
Gain (Moving Coil Mode)
selectable; 50, 60, or 70dB @ 1kHz
Output Power
200W RMS per channel @ 8 Ω, 20Hz – 20kHz
Damping Factor
>400 @ 20Hz, referred to 8 Ω
Frequency Response
20Hz – 20kHz, ±0.13dB; 2Hz – 250kHz, +0.2dB/–3dB
Signal-to-Noise Ratio
>98dB (20Hz – 20kHz, unweighted); >103dB (20Hz – 20kHz, A-wtd), referred to full output – maximum volume setting
Voltage Gain
40.7dB (maximum volume setting)
Total Harmonic Distortion
<0.01% @ 1kHz, 200W, 8 Ω; <0.1% @ 20kHz, 200W, 8 Ω
Preamplifier Section (Analog)
Input Impedance
Preamplifier Section (Analog)
Input Overload
Preamplifier Section (Digital)
DAC Board - same as No 585
DAC output voltage @ full scale (0dBFS)
3.7VRMS
DAC frequency response
20Hz to 20kHz, +0 / ¬–0.2dB
DAC THD, full scale (0dBFS)
<0.0001% @ 1kHz, <0.0003% @ 20kHz
DAC 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 bits
DSD
Native or DoP (DSD over PCM), single- and double-speed (2.8 and 5.6MHz)
RIAA frequency response
20Hz to 20kHz, ±0.3dB
Infrasonic filter defeatable, 15Hz, 2nd order (12dB/octave)
Input resistance (Moving Magnet Mode)
47kΩ
Input capacitance (Moving Magnet Mode)
selectable; 50, 100, 150, 200, or 680pF
Gain (Moving Magnet Mode)
40dB @ 1kHz
THD+N, 20Hz to 20kHz, 2VRMS output (Moving Magnet Mode)
<0.03%
Input resistance (Moving Coil Mode)
selectable; 20, 33, 50, 66, 100, 200, 330, 500, 1000, or 47k
Input capacitance (Moving Coil Mode)
50pF
THD+N, 20Hz to 20kHz, 2VRMS output (Moving Coil Mode)
<0.02%, 50 or 60dB settings, <0.04%, 70db setting
Gain (Moving Coil Mode)
selectable; 50, 60, or 70dB @ 1kHz
Output Power
200W RMS per channel @ 8 Ω, 20Hz – 20kHz
Damping Factor
>400 @ 20Hz, referred to 8 Ω
Frequency Response
20Hz – 20kHz, ±0.13dB; 2Hz – 250kHz, +0.2dB/–3dB
Signal-to-Noise Ratio
>98dB (20Hz – 20kHz, unweighted); >103dB (20Hz – 20kHz, A-wtd), referred to full output – maximum volume setting
Voltage Gain
40.7dB (maximum volume setting)
Total Harmonic Distortion
<0.01% @ 1kHz, 200W, 8 Ω; <0.1% @ 20kHz, 200W, 8 Ω
Preamplifier Section (Analog)
Input Impedance
Preamplifier Section (Analog)
Input Overload
Preamplifier Section (Digital)
DAC Board - same as No 585
DAC output voltage @ full scale (0dBFS)
3.7VRMS
DAC frequency response
20Hz to 20kHz, +0 / ¬–0.2dB
DAC THD, full scale (0dBFS)
<0.0001% @ 1kHz, <0.0003% @ 20kHz
DAC 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 bits
DSD
Native or DoP (DSD over PCM), single- and double-speed (2.8 and 5.6MHz)

Nº585.5

Evolution The 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. Architecture The 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. Amplification Each 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 Medium The 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 Chassis Building 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. Control System 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. Construction The 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 Levinson's 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.

Unlock the full potential of your digital music collection. The № 585.5 contains a premium Precision Link Digital-to-Analog Converter (DAC) that accurately reproduces audio signals and minimizes noise, so you hear the truth, passion and detail of every note.
Fill your home with distortion-free sound. The № 585.5 contains an oversized toroidal transformer and massive capacitors that deliver all the headroom you need for your most dynamic performances.
Our proprietary approach to circuit design delivers uncompromising musical purity and an engaging listening experience. By using discrete components carefully selected for their precise function, the № 585.5 delivers unmatched sound quality that captures the nuances of every note.
Mark Levinson’s innovative R-2R ladder volume control provides balanced and consistent sound. Discern subtle details in your music, even at low volume.
Connect and control the № 585.5 through Ethernet, RS-232, IR input or the custom aluminum remote.
Seamlessly integrate into your home theater system with SSP mode, allowing your Surround Sound Processor to control both the left and right loudspeakers powered by your № 585.5.

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