Casio PX-770 review 

 March 3, 2021

By  Zen Chung

The Casio PX-770 mixes a digital piano’s slender, updated layout with the sound and feel of a real grand piano. Its elegant, furniture-style cabinet features a sliding keyboard cover, a music stand and three built-in pedals (damper, smooth and sostenuto) just like a true piano.

Coupled with its comparatively small price tag, the PX-770 offers a low-cost piano play experience that is perfect for comparative beginners interested in purchasing a digital piano that is more than functional and one with which they can certainly develop.

For those interested in a low-cost digital piano, the Casio Privia PX-770 may be one of the best 88-key digital pianos on the market. The PX-770 incorporates realistic touch and feel buttons, high-quality sound, various device sounds upgraded, and sleek, lightweight layout at an inexpensive cost.

The Casio PX-770 allows learning to play easily with its distinctive duet / lesson mode from keyboard dabbler to real novice. The duet mode divides the keyboard into two identical halves with the same precise octave range, imitating the student-teacher / dual-piano situation, perfect for dual play. Of course, this function is especially good if you are looking for one of the finest digital pianos for beginners that you can purchase.

The Casio PX-770 also features a built-in replay and/or soundtrack library for 60 songs and has the ability to customize with space for another 10 songs. Perfect for concurrent play, the preprogrammed track library of the PX-770’s 60-song has the choice to slow down or speed up each song’s tempo, enabling users to perform along with the songs at their own speed. The PX-770 also has the ability to customize the track library, with blank spaces for the player’s selection of 10 extra tracks.

With its on-board two-track MIDI recorder and optional metronome, the PX-770 also enables users to record and play back their own achievements. There are also two (2) headphone jacks for smooth play and replay on the digital piano.


Real-Feel Piano Experience

The PX-770 provides 88 full-size, scaled action hammer keys that are fully weighted for real piano action. The keys ‘ weight and depression is flawless to those of a true piano. Due to its compact size, the Casio PX-770 fully combines a sleek layout with a full-size 88-key keyboard, offering a very natural, extremely realistic piano play experience for the user.

Sitting on the Casio PX-770 digital piano feels as close as I’ve ever enjoyed sitting on an acoustic piano. The PX-770 couldn’t get much nearer to the real thing when it goes to real-feel play. Casio will definitely not disappoint any supporters who favored the earlier model — the PX-760 — from the 88-key period and touch-sensitive, scaled hammer-action buttons to the Acoustic and Intelligent Resonator (AiR) processor.

Like its predecessor, the Casio PX-760, the latest PX-770 uses Tri-Sensor II Scaled Hammer Action piano buttons for genuine key action. The weighed keys are depressing and responding just like a piano in the style of a concert. Each key is touch-sensitive, so for a clearer, bolder fortissimo sound, competitors can boost the weight of their contact or reduce the weight of their contact for a weaker pianissimo sound.

The scaled hammer action buttons ‘ weight and touch awareness is uncanny. I’m not supposed to suggest that the PX-770 is like playing on a very expensive acoustic piano, but I’m going to mention that, considering the important price gap between the PX-770 and the acoustic piano, it’s pretty incredible how near the buttons are to the true stuff.

Despite the excellent imitation of a real acoustic piano, the Casio PX-770 is ultimately a digital keyboard and remains true to those features, including its varying degrees of sensitivity to the touch.

It is easy to adjust touch sensitivity to one of three preset concentrations. The first environment is the least susceptible to contact, and when the user performs with a strong side or a gentle touch, there is very little distinction. The second touch sensitivity range has a slightly wider sensitivity to the contact of the players. While the first level, depending on the weight of the players ‘ hands, allows very little noise change, the second level is mildly more susceptible to finger weight.

The third tier of touch sensitivity, by contrast, provides competitors the most vibrant touch sensitivity variety. A sensitive pianissimo noise will be provided by the lightest contact, while the strongest touch will produce the boldest fortissimo.

It should be noted that it is also possible to turn off touch-sensitivity if requested. The digital piano will perform the same volume sound every moment the buttons are dropped, regardless of the contact of the performers.

With that said, as the PX-770 uses textured handles, Casio’s effort to reproduce the sound of an acoustic piano remains.

Casio has reformulated its synthetic ivory and ebony products since producing the earlier PX-760 model to offer the piano a more organic, realistic, textured keyboard surface. Like the PX-760, the latest PX-770 model has mildly textured key tops, but the fresh fabrics and enhanced texture enables PX-770 users to encounter an even more genuine, natural experience.

While textured keys do give the Casio PX-770 an advantage over other make-ups and models in terms of the experience of real-feel play, I didn’t consider their texture to be placed on that of an acoustic piano.

Typically, Ivory is soft, and these keys are not. But the textured keys have a clear benefit – they make it simpler for the fingers of the player to remain strongly on top of the keys. You don’t have to think about your fingers slipping off while playing with textured keys.

The PX-770’s sound is considerably brighter and more genuine than that of its older sibling, the PX-760, with more resonance reproduction and natural note decline. Resonance reproduction is the digital reproduction of the strings of an acoustic piano and the manner the sound waves of a piano strings are changed depending on the resonance value of each string or natural vibration frequencies. Note decay is the natural length of a note played on an acoustic instrument until it fades out to silence.

Buttons and Controls

The piano control switches now left-oriented on the 770 provide less clutter and more piano realism. There are devoted function buttons including MIDI Recorder, Reverb and Metronome, two primary instrument sound buttons (one for each of the parts of Grand Piano and E. Piano 1), a Play / Stop key, and a dial speed.

Players must keep down the “Function” button while depressing other key combinations to use most of the environments and features. This is somewhat uncomfortable and disturbing. Since no digital display exists, participants must count how many times they click a key while holding down the “Function” button to scroll through to the required impact or tool. The system will “beep” anywhere from one to four times each moment a configuration is altered, showing the user’s choice. The included Owner’s Manual prints all key settings for the broad spectrum of features accessible on the PX-770.

Unlike the newer PX-870, the PX-770 does not include a Hall Simulator function. The Hall Simulator function is more of an expensive “bell and whistle” than a necessary function of a digital piano. It’s strange and more convenient than anything else, so in my view the PX-770 not including this more costly function is really no big loss to the player.

However, if a performer really intends to recreate the noise of playing in a big music hall, by discovering the correct mix of chorus and reverb impacts through ear they can readily accomplish that impact.

AiR Technology

With the larger capacity of Casio’s Acoustic and Intelligent Resonator (AiR) processor on board, the PX-770 provides the most real piano sound through the latest technology, making it one of today’s best available sounding digital pianos by hand. Two 8-Watt amplifiers provide strong sound for an increased experience of playing and hearing.

The Casio PX-770 includes 19 upgraded instrument sounds, including:

  • 5 Grand Pianos
  • 4 Electric Pianos
  • 4 Organs (Jazz, Pipe, 2 Electric)
  • 2 Strings
  • Harpsicord
  • Vibraphone
  • Bass

The PX-770’s five grand piano voices really capture and encompass the richness and slightly different sounds and tones of different acoustic grand pianos. The Casio PX-770 does an outstanding job recreating the distinct sound quality, resonance and note decline of five separate grand pianos from my private knowledge playing a variety of distinct brands of grand and baby grand pianos.

The PX-770 is superior than its contest with its 19 instrument models, 18 built-in tones with divided and layer features, 128-note polyphony and 8 integrated reverb / chorus impacts (well, at least depending on cost), boasting the most genuine collection of instrument voices to add variety, meaning and feel to your music.

The PX-770’s Grand Piano voice has also been upgraded, using four distinct stages of true brand piano stereo recorded samples to produce the most realistic, most vibrant sound available in this cost spectrum on a device.

Versatile Connectivity

Connecting to any computer is simple with the Casio Privia PX-770. You can readily attach to your Mac, PC, iOS or Android phone via its on-board class-compliant USB port, enabling you to store genuine videos on your compliant computer.

Another excellent ease of connectivity of the PX-770 is that it requires no driver downloads.

Modern Design Meets Modern Technology

The upgraded design of the cabinet has a lovely wooden texture, available in three colors: black, brown and white. It would be a lovely complement to any house due to its color finishes. The cabinet is extremely simple to build because a Phillips head screwdriver is the only instrument needed for installation. A two-person installation, however, would be perfect if the digital keyboard device were not to be dropped when attached to its foundation.

The piano is 54.7 inches broad, 31.4 inches high, and an amazingly slender 11.7 inches deep, making it extremely adaptable to larger rooms. Also, the PX-770 is extremely lightweight, weighing in at just 69.4 lbs fully mounted, and two individuals can readily move around.

Although it is a lightweight, somewhat small unit, too much movement of the digital piano could cause harm, and it is not suggested to use this device as a portable keyboard. Like all delicate instruments, to ensure its longevity and high-quality sound and performance, the PX-770 should be moved with utmost care.

Casio PX-770 Vs Casio PX-760

The distinction between it and the PX-770 is truly quite low compared to the earlier Casio PX-760. However, Casio’s upgrades to the PX-770 are certainly essential, making the new car the one you should definitely target from the two (unless you get the PX-760 at a considerably reduced cost).

First, an enhanced sound chip aboard the PX-770 offers a more natural sound resonance and longer maintain periods on the right pedal.

Next, all 19 keyboard sounds were upgraded and an extra acoustic piano sound is now available.

With fewer seams and sleeker built-in amplifiers, the upgraded cabinet design also gives the PX-770 a really attractive feel. This is certainly a digital piano that you buy first and foremost for touch, feel, and sound. But knowing that you can put this piano in your living room or bathroom is reassuring, and knowing it’s not going to be an eyesore.

Also, the cabinet is much lighter than Casio Privia’s recent series, the PX-870, which has a strong, stronger, attached box.

One of the Casio PX-770’s greatest characteristics is its price tag. It is unbeatable how many characteristics, songs and accompaniments the PX-770 offers for the price. However, the PX-770 does not come with a piano seat, so to recreate the acoustic piano experience you will have to buy one separately.


The Casio PX-770 is at an inexpensive cost a really good, quality electronic keyboard. If cash is a consideration, you might want to count the Casio PX-770 (around $700) as your next large instrument buy.

Zen Chung

I'm Zen Chung, a piano and violin teacher based out of Plano, Texas. I started this blog because my students (and their parents) kept asking about the best musical instruments to buy online. Look no further I'm here to save the day! 

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