Zynthian 5.1 received [positive review]

The 5.1 is a really nice piece of kit. Not only does it look good on the desk, but it also feels thoughtfully put together once everything is assembled. The design has a clean, compact presence, and the fit and finish are solid overall. Even after shipping overseas (mine came from Spain), it held up well-though my frame was slightly squished on arrival, a little gentle coaxing got it back into shape without issue.

Spec-wise, it’s got plenty to admire, and the unit comes together with a satisfying sense of completeness. But what really makes it shine is that it isn’t just a box of parts — it’s a proper instrument, with its own personality. Once everything is running, the sound has a warmth and character that instantly pulls you in. It’s not sterile or clinical; it feels alive, like something crafted with both engineering skill and a bit of love for the music.

Cables & Orientation
One of the trickier parts of assembly was getting the ribbon cables in correctly, particularly the video cable. It’s not immediately obvious which way they should be oriented, and if you happen to insert them backwards or not fully, you’re in for a frustrating round of troubleshooting. In my case, I initially thought the microSD cable was defective until I realized it was simply upside down. The video cable was even more stressful-it required removing the Pi from the heatsink and mainboard (which are tightly sandwiched together with 8 screws plus 2 in the rear) just to get it out again.

Suggestion: A simple silkscreen label or printed markers on the board near each connector would be a huge quality-of-life improvement. Even subtle “this side up” indicators would save users from second-guessing orientations. Floyd Steinberg’s videos show white ribbon cables, but my unit came with black and copper ones, which makes it harder to visually match references. Labels could close that gap.

SD Card Access
Another area worth improving is the microSD slot. Currently, the slot’s full metal casing makes it difficult to eject the card with just a fingernail. Cutting the side tabs down to half height or adding a small hex-pattern cutout would help a ton.

Overall Fit & Finish
Aside from these small usability points, the overall build quality is impressive. The frame is sturdy, the components fit together with precision, and once assembled, the whole system looks and feels like a proper piece of hardware, not just a DIY kit. More importantly, when you start playing with it, you realize it’s more than just well-built — it’s fun. There’s a tactile joy in using it, from the little clicks and cable connections to the moment you hear those first tones. It has that rare mix of precision engineering and playful soul that makes you want to keep experimenting, keep listening, and keep coming back.

Thank you for this piece and its excellent software. It’s not just a machine, it’s an experience — and I hope many more amazing pieces like this continue to be made for people to enjoy.

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There is a little rectangular plastic gizmo that ships with the Zynthian kits to help with SD Card insertion-extraction. If you lose it, a .8 or 1 mm thick guitar pick does the job nicely.

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It’s made of aluminium :wink:

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Ahh, I sit corrected, I am really surprised, but that has happened before and will happen again.

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Hi @Tom_Neverwinter !

Thanks a lot for your kind words and also for the feedback about the building process.

We will try to improve on these aspects. Anyway, flat cable orientation is difficult to catch in videos and pictures, so we try to be very detailed in the tutorial texts:

For instance, regarding the display cable, the tutorial says:

3. Open the RPi5’s DSI connector by softly pulling up on both sides of the tiny black/grey tongue at once. It opens only about 2mm. When it’s totally open, push the ribbon cable inside, straight down, with the black shiny side at the end of the cable facing out (towards the HDMI printed on the RPi5 board). The contacts on the end of the cable that are pushed into the connector should be facing the RPi5 Ethernet socket, while taking care to have the black shiny side facing away from the Ethernet socket. When the cable is tightly inserted, close the connector by pushing down on the tongue with 2 fingers, one of each hand. Pay attention to ensure the cable does not move out of the connector. If it’s not well inserted or not straight, repeat the operation until it’s OK.

What i think is quite detailed, although perhaps a little bit too long. We would like to improve this explanation. Perhaps some native english speaker could help with this?

Regarding the SD-card cable:

3. Insert the SD-card adapter’s ribbon cable. It must be inserted straight, with the metal contacts side facing up.

This is repeated for each flat cable connector, with this part in bold characters:

with the metal contacts side facing up.

Of course, there is always room for improvement :wink:

Thanks!

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