The speaker now includes a full-size insulative sticker to place on the back, preventing shorts against the metal speaker casing (see photo).
By default, the amplifier mutes audio below ~25% of the volume wheel’s travel. This can be disabled by bridging solder point S1 (see photo).
Key Points
Clean, adjustable audio
4.5
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Retro Robot was fantastic in their communication, customer service and speed of dispatch.
The items were easy for me to install and the sound quality is excellent.
If required will certainly be back as a returning customer. Thank You
L
Lee · February 12, 2026
Nicely made and easy to install, massive improvement to the gba. However it would have been better if the speaker had pre-soldered wires, because if you are not very skilled at soldering and you keep the iron on the speaker for too long it will get damaged (happened to me unfortunately)