Sega Mega Drive/Genesis THS7374 RGB Bypass Amp


The latest revision of the Sega MD/Genesis THS7374 RGB Bypass board designed by Voultar. This board will improve the RGB video quality of your console and help to remove jailbars which are very common with the MD/Genesis.


  • Uses the latest THS7374 amp by Texas Instruments which offers a sharper image over the previous THS7314.
  • Compatible with both the Sega Genesis/Mega Drive & Sega Master System model 1 & 2.
  • Low-pass filter toggle.
  • Professionally assembled using high-quality components from JP & USA. Brands such as Nichicon, Vishay, Panasonic.

In stock

SKU: SEGA-RGB Categories: , Tags: , , ,


The kit is sold as DIY and requires soldering skills, please make sure you are confident in installing before purchasing. A video example of an install by RetroRGB is posted below.

Install example:

The board can also be installed in a Sega Master System model 1 & 2, but there are no install instructions. You may however refer to other install pictures.

This board is recommended for install on the MD/Genesis Model 1 & not the Model 2. The Model 1 consoles already output good quality audio, however, the Model 2 has audio issues which I recommend to use the Triple Bypass mod bypass both the video and audio circuits together.

Whereas the RGB Bypass will on some consoles eliminate jailbars completely, they may partially remain on other consoles due to noise from the VDP. See here:

Composite video is disabled after install, please use with a Model 1 MD/Genesis cable wired for CSYNC.

Huge thanks to Voultar for designing this board & open-sourcing it.