I was hesitant to upgrade the speakers for my GBA, but boy was I glad I got the Flex Amp. Don't really need a de-humm kit. Sounds great and loud. Easy to install. Highly recommend it.

The volume has increased drastically with this attachment. Easy to install and makes the games easy to hear.

Good quality flex board. Absolutely makes the console louder but the volume is off at what should be 50% (on the volume wheel) and suddenly begins working when increasing past 50%. Yes it does improve sound loudness and quality but at the price of introducing this quite frustrating issue. If I would have known this prior to purchasing I would've just saved the 13 dollars.

Sound is crisp and clear, 2min to install. This is far higher quality that the R6 amp, my go to from now on.

I've used both Robot's and R6's amps and I really like the way this particular amp fits and sounds in comparison.

I think it's actually a bit easier to fit on your GBA board and think it cleans up the sound a bit better as well, WITHOUT the need for a dehum/dehiss kit.

Highly recommend Robot_retro's flex amp for boosting the sound of your GBA and improving installation efficiency!

This little amp gives a lovely clean sound. I adjusted the peak volume level using the onboard small pot to limit both the minimum and maximum sound levels. This gives a much better range if you like to play discreetly at night!!!

Also, another feature is that the volume will cut out a very low levels, this avoids the hissing I've observed from other amps with the volume wheel turned all the way down.

Highly recommended and I'm planning to fit this in all my GBAs. This is the best flex amp on the market