SSDS3 Stereo Bypass Amp Kit Installation Service

There are only 3 items left in stock.
EUR100.86 price includes VAT
EUR82.00 price excluding VAT

Available now! (handled by our partners BetaGamma Computing in Greece)

All repair/modification work is carried out subject to our terms and conditions. Once you have placed your order, details of where to ship your hardware will be sent to your e-mail address. Prices do NOT include return postage.

The Super SD System 3 expansion (SSDS3), developed by TerraOnion, is a great little add-on device for your PC Engine/Supergrafx console. The SSD System 3 allows you to load both ROM images of Hucard games and ISO images of CD games, making it the prefect replacement for ageing and temperamental PC Engine optical drives. The unit also has RGB output, allowing you to easily connect to your OSSC or CRT television/monitor.

Unfortunately, TerraOnion rushed the device to market without proper testing, resulting in a unit with highly flawed RGB output and issues with the sound output. Rather than work with the community and fix these problems properly, they simply rushed out a second revision which improved some of the picture issues but still left a lot to be desired. This second revision was the best users could expect, until now.

This bypass op-amp board addresses the audio noise problems with the SSDS3 and replaces the default op-amp & circuitry to create clean and balanced stereo audio output. It corrects some flaws that were found in original SSDS3 boards, as well as newly discovered flaws in all SSDS3 boards currently sold by TerraOnion. The board has been engineered with the kind of attention to detail you can expect from FirebrandX.

  • Bypass board includes quality Nichicon polarized electrolytic Vref capacitors for the cleanest possible sound.
  • Attenuates CD volume to avoid overloading the op-amp IC. You will not have to adjust CD volume at all when using this board.
  • Attenuates console-side volume to avoid overloading the op-amp IC. This is a newly discovered issue in the SSDS3 sound circuitry.


Don’t take our word for it, check out this Youtube video demonstration of the bypass board in action at max CD volume.



Purchase this modification and send us your Super SD System 3 hardware and we will professionally install and test FireBrandX’s SSDS3 Stereo Bypass Amp Kit for you. The price includes both the SSDS3 Stereo Bypass Amp Kit and installation.

We also recommend having the FU-RGB bypass board installed at the same time, to fix video issues with the SSDS3.

If you prefer to DIY fit this upgrade, click here.

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  1. Jon Colorez says:

    Is this mod necessary with the new Rev. B board released this February?

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