mClassic Console Compatibility and the Required Signal Chain for Each System

The most common mistake is plugging a retro console directly into the mClassic and expecting an image. It does not work that way. The mClassic requires a 480p or higher HDMI input signal to do anything at all. Feed it 240p or 480i from a Super Nintendo or a PlayStation 2, and you get a black screen or a garbled mess. Here is the definitive console compatibility guide: it tells you exactly what cables, scalers, and converters each system needs in front of the dongle to send it a valid signal.

Marseille Inc. markets the mClassic model MCL-001 as a plug-and-play anti-aliasing and upscaling dongle. The claim is zero added lag. Independent testing with a Time Sleuth lag tester shows approximately 1 to 2 ms of processing latency. That is negligible for most players, but it is not zero. The context-adaptive anti-aliasing algorithm on the Marseille VTV 1224A chip needs that analysis window, and the 1-2 ms penalty is the cost of the image improvement. The rest of the chain, including your TV's own processing, adds far more.

The mClassic processes signals up to 1920x1080 input resolution. It delivers up to 2560x1440 at 60 Hz and up to 3840x2160 at 30 Hz or below. At 4K input it passes the signal through with no processing. The minimum input resolution for any processing at all is 480p. That is the hard floor. 240p and 480i are not supported and will not produce an image.

This means every retro console that outputs 240p or 480i natively needs an external scaler or line doubler between the console and the mClassic. The scaler must convert the analogue signal to HDMI at 480p or higher. The mClassic then applies its post-process spatial anti-aliasing and optional upscale to 1440p or 4K. Without the scaler in the chain, the mClassic is useless for retro hardware.

The dongle draws power from the HDMI port via a USB Micro B connector. Marseille specifies 5V at 1A minimum. If your HDMI port does not deliver enough power, the mClassic drops out intermittently. A powered HDMI switch or a separate USB power supply solves that.

The correct signal chain for any retro console is: console to analogue cable to scaler to HDMI to mClassic to display. The scaler is mandatory for any system that does not output 480p or higher over HDMI natively. The mClassic sits after the scaler, not before it. Plugging it directly into a console that outputs 240p or 480i over HDMI, such as a Wii with a generic HDMI adapter, still fails because the signal is the wrong resolution.

Marseille's zero-lag marketing implies you can insert the mClassic anywhere and get instant improvement. The real setup requires planning each console's specific cable and scaler. Below are the exact chains for the most common systems.

Modern Consoles: Switch, PS4, Xbox One

These consoles output 720p or 1080p over HDMI natively. The chain is: console to HDMI to mClassic to display. No scaler needed. The mClassic upscales to 1440p at 60 Hz or 4K at 30 Hz and applies anti-aliasing. On the PlayStation 4 Pro, Xbox One X, and Xbox Series X, set the console output to 1080p if you want the mClassic to process the image. At 4K output the mClassic passes through and does nothing.

Nintendo Wii and GameCube

The Wii outputs 480p over component video. It does not output 480p over HDMI natively. You need a component-to-HDMI converter that outputs 480p over HDMI. The mClassic then upscales that 480p signal. Many cheap converters from Sham Shui Po add 30 ms or more of lag. Use a known low-lag converter such as the Portta component-to-HDMI or a RetroTINK 2X with a component input. The GameCube with the Carby adapter from Insurrection Industries or the EON GCHD Mk II outputs 480p over HDMI via the GC Video digital port. That chain is: GameCube to Carby to HDMI to mClassic to display. No additional scaler needed because the Carby outputs a clean 480p HDMI signal.

PlayStation 2

The PS2 outputs 480i natively for most games and 480p for a small number of progressive-scan titles. The mClassic 480p input requirement means you need a scaler that deinterlaces 480i to 480p before the mClassic. The PS2 chain is: PS2 to component video cable to RetroTINK 5X Pro or OSSC to HDMI to mClassic to display. The RetroTINK 5X with motion-adaptive deinterlacing produces a clean 480p or 960p signal that the mClassic can then upscale. The OSSC line-doubles 480i to 960i or 480p with bob deinterlacing, which flickers on some content. For PS2 games that switch between 240p menus and 480i gameplay, the RetroTINK 5X handles the resolution switch faster than the OSSC.

240p Consoles: N64, SNES, Genesis, PS1, Saturn

These consoles output 240p natively. The mClassic cannot process 240p. You must line-double or scale the 240p signal to at least 480p before the mClassic. The standard chain is: console to RGB SCART or S-Video or composite cable to RetroTINK 2X Pro or RetroTINK 5X Pro or OSSC to HDMI to mClassic to display. The RetroTINK 2X outputs 480p with zero-lag line doubling. The OSSC outputs 480p, 720p, or 960p with microsecond latency. The RetroTINK 5X outputs 480p, 720p, or 1080p with a framebuffer that enables scanline filters and composite video support. The mClassic then applies its anti-aliasing and upscales to 1440p. The OSSC and RetroTINK 2X both lack composite and S-Video inputs, so if your console only outputs composite, you need the RetroTINK 5X or a separate composite-to-S-Video transcoder.

Dreamcast and Original Xbox

The Dreamcast outputs 480p over VGA. Use a VGA-to-HDMI converter or a DCHDMI internal mod to get 480p HDMI. The original Xbox outputs 480p or 720p over component. Use a component-to-HDMI converter. In both cases the mClassic then upscales the 480p or 720p signal to 1440p. The chain is: console to VGA or component cable to converter to HDMI to mClassic to display.

The PlayStation 2 is the most common console people try to connect to the mClassic, and it causes the most confusion. The PS2 does not output a pure 480p signal for the majority of its library. Most games run at 480i. A handful run at 240p for menus or 2D games. The mClassic requires 480p minimum, so you need a deinterlacer or line doubler in the chain.

A component-to-HDMI converter that claims to upscale to 1080p treats the 480i signal as video, not game content, and adds 2 to 4 frames of lag. Get the RetroTINK 5X Pro with motion-adaptive deinterlacing. It outputs a clean 480p or 960p HDMI signal. The mClassic then upscales that to 1440p. The total lag from the RetroTINK 5X plus the mClassic is under 3 ms, imperceptible in gameplay.

If you use the OSSC instead, set it to line 2x mode for 480i, which produces 960i. The mClassic may or may not lock to 960i depending on your TV. The safer OSSC setting is to use bob deinterlacing to output 480p, but bob deinterlacing flickers on static text. For PS2 games, the RetroTINK 5X is the better choice.

The Nintendo GameCube with the digital AV port is the easiest retro console to connect to the mClassic. The Carby adapter from Insurrection Industries taps the digital video signal before the analogue encoder and outputs 480p over HDMI. No scaler is needed. The chain is: GameCube to Carby to mClassic to display. The mClassic upscales the 480p signal to 1440p and applies anti-aliasing. This is the one retro setup that genuinely works as a two-cable plug-and-play solution.

The EON GCHD Mk II does the same thing with an integrated audio extractor and a scanline generator. Both adapters output a signal the mClassic accepts without issue. The GameCube itself must be the model with the digital port, which is the DOL-001 model in North America and the DOL-001 or DOL-101 in other regions. The DOL-101 lacks the digital port and requires a different chain using the analogue output with a RetroTINK 2X or 5X.

The single most common failure is plugging a console that outputs 240p or 480i directly into the mClassic and getting no image. The mClassic is not a standalone scaler. It is a post-processing filter that requires a valid 480p or higher HDMI signal from an external scaler or from a modern console. The second most common failure is using a cheap component-to-HDMI converter from an electronics market that treats the 480i signal as video, adds 30 ms or more of lag, and ruins the feel of the game. The third is the mClassic losing power from an under-spec HDMI port, causing intermittent black screens.

For the Hong Kong gamer with limited space who wants one display for modern and retro consoles, the practical answer is this: buy a RetroTINK 5X Pro for all your 240p and 480i consoles, then put the mClassic after it for anti-aliasing. That chain works for everything from the Super Famicom to the PS2. The mClassic runs approximately HKD 750 to 850 from Golden Computer Centre stalls. The RetroTINK 5X is a separate investment on top of that. That is the honest setup cost. Anything cheaper introduces lag or fails to produce an image.