The Yamaha CP33 Digital Stage Piano is the entry digital piano in their professional stage pianos lineup. The CP33 is one of the best so-called ‘electric grands’ on the market as it offers you the authentic sound of a grand piano, with all of the extra sound effects, and mixing and recording capabilities of a digital keyboard. This is basically the same piano as the Yamaha CP300 but about $1000 cheaper. The Yamaha CP33 has 88 keys with 2 pedals. The Yamaha CP33 weights 39.7 lbs, which is slightly lighter than the average for all Stage Digital Piano Digital Pianos and Keyboards.
According to several user reviews, they have praised a Yamaha CP33 for the stereo sampled sound of this piano keeps is very authentic and taken from Yamaha concert grand pianos worth tens of thousands of dollars; Very handy Panel Lock feature that prevents you from hitting the wrong button during a live performance; Has both pitch bend and modulation wheels — this is perfect if you plan on using this as a MIDI controller for your DAW (digital audio workstation). Also, some users have complained it for no speakers; LED display could be just a big bigger; Music rest doesn’t come with the piano.
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To restoring Yamaha CP33 to it’s factory settings, just simply power ON while simultaneously holding the “Rightmost White key (C7)” and “Three Black Keys (F#6, G#6 and A#6)” until “CLr” appears in the display.
Warning! This function will return all of the settings to the values when the GT-PRO was shipped from the factory. Before you perform this operation, check whether there is any data you want to keep. Hopefully the article of “Reset Yamaha CP33 88-Key Stage Piano” can help you.
Reference: Yamaha CP33 manual