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After applying the external prosound mod on my original gameboy . I found out that the volume is lower than using the original jack and the speaker even I turned my volume to maximum . Is this normal ?
( Added a 3.5mm stereo jack and soldered the wire to the post-pot )
EDIT : Works fine when using speaker , the new jack is significantly louder than the original jack
However using a headphone doesn't
Last edited by chippyattack (Aug 18, 2017 9:20 am)
That's completely normal! The signal coming through your pro-sound 3,5mm jack is a Line level signal which is made for connecting to an external amplifier, such as the one connected to your speakers or the pre-amps in your mixer. The headphone jack uses the internal gameboy amplifier to amplify the signal to be able to drive your headphones. Essentially what a prosound mod does is bypassing that internal amplifier to allow external amplifiers to amplify the raw line level signal and do so much better.
I hope it makes more sense for you now 