M1 Mini Mega DIY Kit

Click Below For More Images:
  • M1 Mini Mega DIY Kit
EUR34.62 price includes VAT
EUR28.15 price excluding VAT

You asked for the best and we’re delivering it! Designed by FirebrandX with his notorious attention to detail, the M1 Mini Mega is a Stereo bypass amp upgrade for your model 1 Sega Megadrive/Genesis console (all revisions except VA7).

Get sound quality like you never knew was possible from your original, genuine Megadrive hardware. Hear all your classic games with crystal clear noise free audio output. No expense has been spared to bring you this audiophile grade upgrade for your classic console.

Once installed, the M1 Mini Mega bypasses the stock headphone output with a line-level output that you can wire to RCA jacks or the original headphone jack on the front panel of the console. The mod board itself is designed to be mounted in any convenient location, using a Scotch Mounting pad (included in the kit). This gives the user versatile control over installation of the mod. These mounting pads are strong and will not detach, but not so strong that you cannot remove them without damage to the system.

The concept of this mod is to improve the upper range clarity for line level audio output, which is muffled by strong low pass filtering when using the stock headphone output jack for recording or connecting to your stereo receiver/amplifier.

FirebrandX has prepared an example audio file so you can hear the difference yourself. Click here to download it.

Please be aware that the “VA7” revision model 1 Genesis console (the last revision before Sega switched to the Model 2) is not compatible with this board.

Kit Contents

1. Main M1 Mini Mega mod board
2. Two “RCA” style female jacks with plastic washers and securing nuts
3. One Scotch Mounting Pad
4. One foot of shielded rainbow 28 AWG 10-line conductor wire

Fitting Instructions

Please note that installing this modification requires soldering skills. Do NOT order this kit until you have read ALL of the fitting instructions and feel confident with carrying out the installation. Some community based support may be available in our forums but we CANNOT offer technical support with DIY fittings nor can we give refunds on components that have been damaged or destroyed due to incorrect use or failed installation attempts.

For fitting instructions, please see this page.

Note that customers in the USA can purchase this part directly from the designer, FirebrandX, here.

A fitting service for this part is available here.


Submit your review

Create your own review

M1 Mini Mega DIY Kit
Average rating:  
 0 reviews

If your country is not listed as a shipping destination please contact me, I may be able to sort something out for you!

Transactions made in our store are 100% safe, SSL encrypted and guaranteed by our payment provider Stripe. Please use a modern browser to shop on our site, we do not support Internet Explorer 9 or earlier and may cancel transactions placed with those browsers.

Please dispose of your unwanted electrical items responsibly and for free at your local recycling centre. See our page here for more information.


  1. Robert says:

    When can we expect more stock of this?

    Best regards!

  2. Cristofer Karlsson says:

    Im seconding Robert here, do you know when youll get this in stock again?


  3. Robert says:

    I wish we could get some more comparison samples of this m1 amp in action.

  4. Rob says:

    Hi, I’ve installed my kit as per the instructions but I’m getting a low buzzing sound in the background of the sound. Any ideas?

    • Justin Okeke says:

      I’m having that same issue! I installed it along with Voultars RGB Bypass board. I moved the M1 Mini Mega board to the opposite side of the Genesis but it didn’t help. I contacted Firebrand X but his suggestions didn’t help. Are you using the headphone jack or RCA?

  5. Carl Bown says:

    I think they all have a low level of hum, I had to plug mine straight from the 3.5mm jack, straight to the amp, instead of using the Packapunch RGB stereo injection cable, miles better now!

    • CFusion says:


      So this Humming that others have mentioned, is it present if you solder a cable from the board to the headphone jack instead of the RCA ports? I use a PackaPunch cable that grabs audio from the headphone jack as well.

  6. CFusion says:

    Seems they have gone out of stock again. Any timeframe when they will be back in stock?

  7. Rob says:

    Mine turned out to be a resistor underneath the console on the trace that connects to the sound chip, think it was a 222

  8. retrotinker says:

    I installed one of these for a customer and it sounds beautiful. However he is reporting problems with audio going from an insurrection scart cable(with headphone pigtail) into a gscart then ossc. Anyone have any ideas? He said it worked for 3 minutes then stopped working. The audio output still works when going into headphones just not through the ossc.

  9. Retrotinker says:

    Just the mega drive, according to him other systems going through the gscart into the ossc have sound.

    • FBX says:

      Does the sound work plugging the SCART cable directly into the OSSC? Need to confirm the cable itself isn’t messing up.

Leave a Reply

Get your OSSC

OSSC’s are in stock now! Click here to get yours!