SNES Video Output Explained

The Super Nintendo (and Super Famicom) had many motherboard revisions, each outputting different video quality. This video aims to clear up many misconceptions about when that quality difference matters, as well as showcase some mods to make ALL revisions output perfect RGB video!

Here’s links to things I showed:

SNES Info & Cables:
SNES Transparent Shells:
Super Famicom Transparent Shells:
Basic SNES Restoration Tips:
Voultar RGB Bypass:
SNES Motherboard Rev’s:
Retro Castle MiSTer Kit:
All equipment used to shoot this video can be found here:

In the video, I demonstrated the OSSC’s “reverse low-pass filter” and how it can sharpen the 2-CHIP’s image at the cost of highlighting the interference you’d get from those motherboard revisions.  The RetroTINK 5x can accomplish the exact same thing by opening the menu and going to Post Processing \ Pre-emph.  Here’s some screenshots demonstrating the difference between a 2-CHIP connected via RGB SCART cables, outputting 1080p (Over).  Adding the Pre-emph sharpens the image, but as with the OSSC (and all other external solutions), you’ll also sharpen the noise, making it more noticeable.  I suggest trying it, as it may look better for certain games, however using 2-CHIP’s with RGB might just be best used in Generic mode.

It’s my opinion that if you’d like to mask the “messiness” of the 2-CHIP, you’d want to consider adding CRT emulation along with the Pre-emph filter.  Here’s the same comparison as above, but with scanline and mask emulation (the exact settings are in the screenshots).  I think overall, while sitting at a normal viewing distance, taking advantage of the RT5x’s amazing CRT emulation is the best solution for unmodded 2-CHIP’s.  Click on both pictures to get a full-sized view:

If you’d like more information on how to fix the 1CHIP’s “white line issue”, please check out this very old (but still accurate) video I did years ago:


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