I didn't like the on board speakers in the P-125. The 121 sounds so much better. I sold the 125 and sorry I didn't get the 121 (which is cheaper). Good luck
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Yamaha 920 / Yamaha DGX-670 / Maui 5 Go (2) / Senn e935 / Sony C80 / Tascam DP24sd / ATEM Mini Pro switcher (studio)