Casio PX-870 vs PX-850: Finding the Best Privia Piano

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Learn why the PX-870 is a better pick over the PX-850 in this Casio PX-870 vs PX-850 review. 

In most piano circles, the Casio PX-870 is considered an upgrade of the Casio PX-850. But when I looked at the specs, I couldn’t find much of a difference. So, what’s so special about the Casio PX-870 is that it’s more expensive and popular than the PX-850.

Well, there are actually quite a few reasons. When I dove deep into these two pianos, I saw all the upgrades available on the PX-870 and exactly why it’s the better option between the two.

The Casio PX-870 offers fuller and more detailed tones while also giving you more options when it comes to your sound. So, if you’re looking for a premium and more versatile piano between these two options, the Casio PX-870 is the easy winner.

That said, there are still some people that might prefer the Casio PX-850. And in this Casio PX-870 vs PX-850 comparison, I’ll show all the features and benefits that either piano has to offer. So, by the end of this comparison, you’ll know exactly which piano is the best fit for your home.

Read on to learn more.

Casio PX-870 vs PX-850: A Head-to-Head Comparison

Image
The Winner (#1)
Casio PX-870 BK Privia Digital Home Piano, Black
The Runner-Up (#2)
Casio PX850 BK 88-Key Touch Sensitive Privia Digital Piano with 4 Layer Stereo Grand Piano Samples (OLD MODEL)
Model
Casio PX-870
Casio PX-850
Product line
Privia
Privia
Product type
Console Digital Piano
Console Digital Piano
Number of keys
88
88
Hammer action
Tri-Scaled Hammer Action II
Tri-sensor Scaled Hammer Action Keyboard II
Split mode
Polyphony
256
256
Effects
Hall Simulator (4 types), Chorus (4 types), Brilliance
Reverb (4 types), chorus (4 types), brilliance(-3 ~ 0 ~ 3), DSP (Preset for some tones)
Speakers
12 cm x 2, 4 cm x 2 (2-Way, 4-Speaker)
12 cm x 2, 5 cm × 2 (2-Way 4-Speakers)
Pedal
Three-pedal unit
Three-pedal unit
MIDI
Yes, USB
Number of voices
19
18
Touch response
3 types
3 types
Weight
34.3 kg
35.5 kg
What I like
Price
$1,199.00
Price not available
The Winner (#1)
Image
Casio PX-870 BK Privia Digital Home Piano, Black
Model
Casio PX-870
Product line
Privia
Product type
Console Digital Piano
Number of keys
88
Hammer action
Tri-Scaled Hammer Action II
Split mode
Polyphony
256
Effects
Hall Simulator (4 types), Chorus (4 types), Brilliance
Speakers
12 cm x 2, 4 cm x 2 (2-Way, 4-Speaker)
Pedal
Three-pedal unit
MIDI
Yes, USB
Number of voices
19
Touch response
3 types
Weight
34.3 kg
What I like
Price
$1,199.00
More info
The Runner-Up (#2)
Image
Casio PX850 BK 88-Key Touch Sensitive Privia Digital Piano with 4 Layer Stereo Grand Piano Samples (OLD MODEL)
Model
Casio PX-850
Product line
Privia
Product type
Console Digital Piano
Number of keys
88
Hammer action
Tri-sensor Scaled Hammer Action Keyboard II
Split mode
Polyphony
256
Effects
Reverb (4 types), chorus (4 types), brilliance(-3 ~ 0 ~ 3), DSP (Preset for some tones)
Speakers
12 cm x 2, 5 cm × 2 (2-Way 4-Speakers)
Pedal
Three-pedal unit
MIDI
Number of voices
18
Touch response
3 types
Weight
35.5 kg
What I like
Price
Price not available
More info

Last update on 2024-05-17 / Affiliate links / Images from Amazon Product Advertising API

Casio PX-870 vs PX-850: A Head-to-Head Comparison

There are three major comparison points I always consider when comparing digital pianos. These are the tone, feel, and polyphony of the piano, as I believe these to be the most important characteristics of any digital piano.

And based on these comparison points, the Casio PX-870 comes out on top with a score of 3-2. These pianos were tied in almost all categories. But since the Casio PX-870 offers a better tone and more sound options, it ultimately came out on top.

Tone

The winner: Casio PX-870

The PX-870 is the flagship of the world-renowned Privia line of digital pianos,
The PX-870 is the flagship of the world-renowned Privia line of digital pianos

Whenever you look at a digital piano, I highly suggest that the first feature you consider is the piano’s tone. It’s important to get a piano that offers a rich and realistic tone, especially when you’re shopping for a console piano like those in the Casio Privia series. 

Between these two pianos, the PX-870 won out. While they share a tone generator, the PX-870 has a better sound library. On top of that, it has a larger cabinet, which produces a much fuller sound that is much closer to the tone of an acoustic piano.

Because of these reasons, the Casio PX-870 ended up winning this comparison.

+Tone Generation

There’s no clear winner between these two pianos if you only look at the tone generator. This is because both of these pianos use the Multi-Dimensional Morphing AiR tone generator. This is one of Casio’s best tone engines so that you can expect rich and realistic sounds from both of these pianos.

One of the highlights of this tone engine is how it handles soft and loud sounds. When playing piano, pianists usually add emotions and dimensions to their sound by playing around with the volume. And with the PX-870 and 850, you can expect a smoother transition before the soft and loud notes, making for a more realistic sound.

And while the sound quality of these two pianos is fairly similar, I couldn’t help but notice a richer tone from the Casio PX-870.

The reason for this is that the piano is larger. This means that the sound waves travel through the wood to produce a much more organic sound. This is a very small difference that most beginners won’t even notice. But if you’re looking for the most detailed and realistic piano tone possible, the Casio PX-870 is the better option.

Casio PX-850 has the advanced AiR sound
Casio PX-850 has the advanced AiR sound

+Sound Library

Another reason the Casio PX-870 won this comparison over the PX-850 is because of its tone library. A key difference between these two pianos is that the Casio PX-870 comes with 19 voices, while the PX-850 only comes with 18.

Most of these voices are the same, but the major difference is that the Casio PX-870 comes with one additional piano voice. This gives you more options when choosing a piano tone to use. On top of that, the additional piano tone is top-quality and great for any piano piece.

So, if you’re looking for quality and variety in your tone, the PX-870 holds a very slight advantage.

Feel

The winner: Tie

If you look at the specs of both pianos, you’ll find that they have the same hammer action. Not only that, but a deeper dive showed me that they even have the same types of keys on the keyboard. So, there was no winner between these two when comparing the piano feel of either option, which is why both pianos came out of this category with a point.

Casio PX-870 has a great sound quality
Casio PX-870 has a great sound quality

+Hammer Action

One of the primary features of both of these pianos is that they use Tri-Scaled Hammer Action II, one of the newer hammer actions from Casio. This system features a graded weight, which means that the lower keys on the piano will be significantly heavier than the higher keys. This is the same way acoustic piano hammer action works, so it adds a whole new dimension of realism when playing these pianos.

On top of that, this hammer action aims to replicate the slight delay when you hit the keys and when you actually hear the piano sound. This is another very small detail that Casio paid attention to, which is why they are one of the most trusted and popular digital piano brands on the market today.

Most beginners won’t care or even notice the slight delay. However, you definitely feel the difference as these pianos are much more realistic than other digital console pianos in the same price range.

Another great detail that Casio added to these pianos is textured keys. If you play these pianos, you’ll notice that the texture on the white keys is different from the texture on the black keys. This makes the piano feel even closer to an acoustic piano and is another reason these are some of my favorite console digital pianos on the market.

Polyphony

The winner: Tie

The last feature I considered in this comparison was the polyphony. When buying a digital console piano, it’s best to get one with high polyphony to play more notes simultaneously and add more emotion and feeling to your playing.

Luckily, both of these pianos come with 256-note polyphony. This is a huge plus because most digital pianos in this price range have a maximum of 192-note polyphony. So, you get more versatility and flexibility when playing the Casio PX-870 or PX-850, making them great picks for just about any pianist out there.

Casio PX-850 comes with many playing modes
Casio PX-850 comes with many playing modes

Casio PX-870 vs PX-850: The Similarities

The Casio PX-870 is an upgrade of the PX-850 in the PX product line. The main difference is the fact that the PX-870 has more tones than the PX-850. But aside from that, these pianos are very similar.

In fact, the pianos share the same tone engine, hammer action, and even design. Yes, I know that the Casio PX-870 is slightly bigger. But at first glance, it’s really hard to tell the difference between these pianos, which is something you want to pay attention to.

Additionally both of these pianos come with a range of great playing modes that allow you to explore your musical possibilities. You can layer different voices on top of each other and even split the piano so one side has a different voice than the other.

These are some of the features that made the PX-850 popular upon its release. So, it’s no surprise that Casio kept most of the key features when they released the Casio PX-870.

Quick Rundown of the Casio PX-870

Casio PX-870 BK Privia Digital Home Piano, Black
  • Dimensions: 55.08" x 11.77" x 31.54" | Weight: 74.08 lbs
  • The PX-870 features a variety of 19 instrument Tones, with the ability to layer and split them as needed. Touch Response - 3 sensitivity levels, Off
  • With a generous 256 notes of polyphony, you can rest assured that even the most complex performances will sound perfectly natural
  • The Tri-Sensor Scaled Hammer Action II keyboard has an incredible feel and captures the dynamics of a performance with unparalleled speed and accuracy
  • The powerful 40-watt, 4-speaker system is designed to envelop the listener, audience and room with rich, detailed sound

Last update on 2024-05-17 / Affiliate links / Images from Amazon Product Advertising API

Pros
  • Built-in reverb and chorus effects
  • Tri-scaled Hammer Action II
  • Features a variety of playing modes
  • 256-note maximum polyphony
  • Better sound library than the PX-850
Cons
  • Relatively expensive

Quick Rundown of the Casio PX-850

Casio PX850 BK 88-Key Touch Sensitive Privia Digital Piano with 4 Layer Stereo Grand Piano Samples (OLD MODEL)
  • Tri-Sensor Scaled Hammer Action with Ebony and Ivory Keys
  • 18 Tones with Split / Layer capability
  • 256 note polyphony
  • New 4 Layer Stereo Grand Piano Samples
  • Stereo Digital Audio Recording to USB storage

Last update on 2024-05-16 / Affiliate links / Images from Amazon Product Advertising API

Pros
  • Fairly affordable
  • Comes with tri-scaled hammer action
  • Great tone engine
  • Decent tone library
  • Comes with many playing modes and 256-note polyphony
Cons
  • Not as versatile as the PX-870

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