The Magnetar UDP800 MKII sits at an interesting intersection in the modern component landscape: a universal optical disc player at a time when physical media is often written off, yet built with the kind of attention to analog output stages and mechanical isolation that dedicated audiophiles have been asking for. This is not a repurposed budget transport with a marketing sticker. It is a machine designed around the premise that disc playback, done seriously, still delivers a level of fidelity and reliability that streaming has yet to fully match. In this deep dive we will work through the topology, the transport mechanism, the power delivery, the conversion stage, and most importantly the connectivity that determines how this player integrates into a real system.
What kind of player is the UDP800 MKII?
The UDP800 MKII is a universal SACD and UHD Blu-ray media disc player. That single description carries a lot of weight for an enthusiast. "Universal" means the machine is engineered to read and correctly decode a wide range of optical formats rather than specializing in one. The transport, servo control, and decoding chain all have to accommodate different disc structures, laser wavelengths, and data layouts. A universal player is inherently more complex than a single-format transport, and the value proposition is that one chassis can serve both your movie system and your critical two channel listening.
Which disc formats does it actually play?
The UDP800 MKII plays UHD Blu-ray, Blu-ray, SACD, DVD-Audio, DVD, and CD. This spread covers essentially the entire history of consumer optical media that matters to a serious listener or viewer. UHD Blu-ray delivers the highest resolution video with expanded color and dynamic range. SACD and DVD-Audio are the high resolution audio formats that many enthusiasts have invested in over the years, with SACD in particular holding a devoted collector base. Standard Blu-ray, DVD, and CD round out the compatibility so that legacy libraries remain fully usable. The engineering challenge here is that SACD uses Direct Stream Digital encoding while CD and DVD-Audio use PCM, so the player must handle fundamentally different bitstream types through the same decoding and conversion path.
Is the player region-free?
Yes, the UDP800 MKII is region-free. Region coding was designed to restrict disc playback to specific geographic markets, which frustrates collectors who import titles unavailable domestically. A region-free player ignores those restrictions and plays discs regardless of their regional flag. For an experienced enthusiast building an international disc library, especially of concert films, opera, and reissued audio titles, this is a meaningful practical feature that removes a common barrier to expanding a collection.
Transport and Internal Architecture
How does the disc transport handle multiple formats?
The transport is the mechanical and optical heart of a universal player, and it must physically read discs with very different pit structures and reflectivity. UHD Blu-ray, standard Blu-ray, SACD, DVD, and CD all sit at different layer depths and require different laser handling to track accurately. A well implemented universal transport uses a stable loading mechanism and a servo system that keeps the read head precisely focused as it tracks data at high speed. The goal for audio playback in particular is to read the data cleanly so that error correction has the lightest possible workload, because a transport that reads well the first time reduces the demands placed on downstream buffering and reclocking.
Why does mechanical stability matter for sound and picture?
Mechanical stability matters because vibration and resonance directly affect how accurately the laser can track the disc surface. Any disc player is a small precision instrument spinning a physical medium at speed, and unwanted vibration introduces read errors and jitter that the electronics then have to correct. A rigid chassis and a settled transport reduce these problems at the source. For the enthusiast, this is the difference between a player that merely functions and one that extracts data with margin to spare, leaving the conversion and output stages to work on clean, well timed information.
Digital to Analog Conversion
Does the UDP800 MKII have its own DAC?
Yes, the UDP800 MKII includes integrated digital to analog conversion. This is the feature that elevates it from a pure transport into a complete source component. Rather than forcing every listener to pass digital audio out to an external converter, the player performs conversion onboard and presents ready to use analog signals at its outputs. For a two channel listener who wants to run directly into an analog preamp or integrated amplifier, the onboard DAC means the full playback chain from disc to analog is handled inside a single, purpose designed box.
How does onboard conversion affect system building?
Onboard conversion gives you flexibility in how you architect your system. You can treat the UDP800 MKII as a self contained analog source and take its balanced or single ended outputs straight into your amplification, or you can bypass the internal DAC entirely by using the digital outputs to feed a separate converter or an AV processor. This dual path capability is significant because it lets the player grow with your system. An enthusiast who later invests in a reference external DAC does not lose the disc transport; they simply change which set of outputs they use.
Analog Outputs
What analog audio outputs does it provide?
The UDP800 MKII provides balanced XLR stereo outputs and single-ended RCA stereo outputs. This is a genuinely important detail for a serious two channel setup. Balanced XLR connections carry the audio signal differentially over three conductors, which allows common mode noise picked up along the cable run to be rejected at the receiving end. This is especially valuable in longer runs or in systems where noise from other components is a concern. The single ended RCA outputs use the conventional two conductor connection that virtually all analog audio gear accepts. Offering both means the player mates cleanly with balanced input preamps and integrated amplifiers as well as the large installed base of RCA input gear.
When should you choose XLR over RCA?
Choose XLR when your amplification has true balanced inputs and you want the noise rejection benefits, particularly over longer interconnect distances. The balanced topology is designed to preserve signal integrity across the run, and in a system with a fully balanced signal path it can also take advantage of the amplifier's own differential architecture. Choose RCA when your preamp or integrated amplifier is single ended, or when your cable runs are short and simple. Neither connection is universally correct; the right choice depends on the design of the component receiving the signal. Match the player to the input topology of your amplification for the cleanest result.
Digital Outputs
What digital audio outputs are available?
The UDP800 MKII offers coaxial and optical digital audio outputs. Coaxial uses a single conductor electrical connection, typically on an RCA style jack, to carry the digital audio stream, while optical uses a TOSLINK connection that transmits the signal as light through a fiber. Both let you send digital audio out of the player to an external DAC or to a processor that will perform its own conversion. The coaxial output carries the signal electrically, which some listeners prefer for its bandwidth characteristics, while the optical output provides complete galvanic isolation because it passes no electrical connection between components, which can help in systems fighting ground related noise.
How do these outputs fit into a two channel or hybrid system?
These digital outputs let you route audio to a dedicated converter while keeping the UDP800 MKII as your transport. In a two channel system, you might send the coaxial output into a standalone DAC that you have chosen for its specific sound. In a hybrid setup that also handles movies, the digital outputs provide a path for stereo audio into legacy processors. The presence of both coaxial and optical gives you the option that best suits your other equipment and your noise environment.
Video and HDMI Connectivity
Why does the UDP800 MKII have dual HDMI outputs?
The UDP800 MKII has dual HDMI outputs, which is one of the most useful integration features for a combined audio and video system. Dual HDMI allows you to separate the audio and video signal paths. One output can carry the full video signal directly to your display or projector, while the second can send audio to an AV receiver or processor. This separation is valuable because it lets the audio path bypass the video switching electronics of a display or an older receiver, which can be a source of degradation, while still delivering the highest quality picture straight to the screen.
What video HDR formats does it support?
The UDP800 MKII supports HDR and Dolby Vision. High Dynamic Range expands the range between the darkest and brightest parts of an image, producing more lifelike contrast and highlight detail than standard dynamic range video. Dolby Vision is a dynamic HDR format that carries scene by scene metadata, allowing the display to optimize brightness and color on a moment to moment basis rather than using a single fixed profile for the entire title. For anyone pairing this player with a capable modern display, these formats ensure you are seeing the full intended picture from UHD Blu-ray content.
Media Playback and Networking
Can it play files from USB and over a network?
Yes, the UDP800 MKII supports USB media playback and network media support. USB playback lets you connect a drive and play files directly from it, which is convenient for high resolution audio files and video content that lives outside your disc collection. Network media support means the player can access content served over your home network, so files stored on a NAS or computer become playable without physically moving media. Together these features extend the player beyond optical discs into file based playback, making it a more complete source in a modern library that mixes physical and digital content.
Power Supply and Materials
Why does the power supply matter in a disc player?
The power supply matters because every sensitive circuit in the player, from the transport servos to the DAC and the analog output stage, depends on clean, stable power to perform. Noise on the power rails can find its way into the analog signal and degrade the final output. A well executed source component isolates its digital and analog sections and delivers steady voltage to each, so that high current transport demands do not disturb the low level analog circuitry. For the enthusiast, the quality of power delivery is often what separates components that measure and sound composed from those that do not.
Closing Assessment
The Magnetar UDP800 MKII presents itself as a serious universal source rather than a convenience appliance. The combination of true balanced and single ended analog outputs, both coaxial and optical digital outputs, dual HDMI for flexible audio and video routing, and onboard conversion gives it the connectivity to anchor either a dedicated two channel rig or a combined audio and video system. Region-free operation and full format support including SACD and DVD-Audio make it a natural home for a large and varied disc library. For the experienced enthusiast who still values physical media and wants a single component that can integrate cleanly across multiple system architectures, the UDP800 MKII is a thoroughly considered piece of engineering worth close attention.
