585.5· Amplificadores
The Mark Levinson Nº585.5 is a fully discrete stereo integrated amplifier rated at 200 W per channel into 8 ohms. It combines a Class A phono stage, an ESS Sabre-based DAC and digital inputs for listeners who want one chassis for vinyl, digital and line sources.
- 200 W per channel at 8 ohms; 300–350 W at 4 ohms
- Discrete Class A phono stage with MM and MC inputs
- ESS Sabre 32-bit DAC; PCM to 192 kHz, DSD via USB
- Six digital inputs: AES/EBU, coaxial, optical, USB
- Switchable 80 Hz crossover on RCA pre-outs for 2.1 systems
- Ethernet, RS-232, IR and 12V trigger control; remote included
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The Nº585.5 is a stereo integrated amplifier built around mirror-imaged, dual-monaural discrete analog circuitry. The Class AB power stage uses a 900VA toroidal transformer with separate secondary windings for each channel and twelve output transistors per channel. Volume is set by discrete R2R ladders with low-noise analog switches. It is rated at 200 W RMS per channel into 8 ohms, with 300–350 W quoted at 4 ohms.
The built-in phono stage is a discrete, op-amp-free design running in Class A. The moving-magnet section has fixed gain and five capacitive loading settings. The moving-coil section offers three gain settings and ten resistive loading settings. An ultrasonic filter deals with rumble and warp. The DAC section is based on an ESS Sabre 32-bit converter and handles PCM up to 192 kHz/32-bit plus DSD natively or as DoP over USB. Clari-Fi processing is included for compressed material.
Inputs include one XLR, three RCA and the phono input, plus AES/EBU, coaxial, optical and USB digital inputs. Stereo RCA pre-outs can run full range or through a switchable 80 Hz second-order crossover for 2.1 systems. SSP mode lets a surround processor control the amplifier, and control ports are Ethernet, RS-232, IR and 12V trigger in/out. A cast aluminum remote is included.
Vídeo
Especificações
- Marca
- Mark Levinson
- Modelo
- 585.5
- Categoria
- Hi-Fi e áudio doméstico › Amplificadores
Amplification
- Output power
- 200W RMS per channel @ 8 Ω, 20Hz – 20kHz
- Power at 4 ohms
- 300-350W
- Damping factor
- >400 @ 20Hz, referred to 8 Ω
- Voltage gain
- 40.7dB (maximum volume setting)
- THD
- <0.01% @ 1kHz, 200W, 8 Ω; <0.1% @ 20kHz, 200W, 8 Ω
- Frequency response
- 20Hz – 20kHz, ±0.13dB; 2Hz – 250kHz, +0.2dB/–3dB
- Signal-to-noise ratio
- >98dB (20Hz – 20kHz, unweighted); >103dB (A-wtd)
- Power transformer
- 900VA toroidal
Inputs
- Analog inputs
- 4 (one XLR, three RCA) plus Pure Phono stage
- Digital inputs
- 6: USB, AES/EBU, S/PDIF
- Analog input impedance
- >45k Ω (RCA & XLR)
- Analog input overload
- >5.5V RMS (RCA & XLR)
Phono stage
- MM input resistance
- 47kΩ
- MM input capacitance
- 50, 100, 150, 200, or 680pF
- MM gain
- 40dB @ 1kHz
- MC input resistance
- 20, 33, 50, 66, 100, 200, 330, 500, 1000, or 47k
- MC gain
- 50, 60, or 70dB @ 1kHz
- RIAA frequency response
- 20Hz to 20kHz, ±0.3dB
- Infrasonic filter
- Defeatable, 15Hz, 2nd order (12dB/octave)
Digital audio
- PCM sample rates
- 32, 44.1, 48, 88.2, 96, 176.4, or 192kHz; up to 32 bits
- DSD
- Native or DoP, single- and double-speed (2.8 and 5.6MHz)
- DAC output at 0dBFS
- 3.7VRMS
- DAC THD (0dBFS)
- <0.0001% @ 1kHz, <0.0003% @ 20kHz
- DAC SNR
- >120dB (A-weighted)
Control
- Control ports
- Ethernet, USB, RS-232, IR input, 12V trigger input and output
- Remote
- Mark Levinson extruded aluminum remote
- Pre-outs
- Stereo RCA, full range or switchable 80Hz second-order crossover
Physical
- Construction
- Steel and aluminum chassis, card-cage architecture, anodized aluminum front panel
- Origin
- Designed and handcrafted in the USA