Only 100 Review

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Radsone Earstudio HE100 Review

Following on the heels of their monumentally successful ES100 Bluetooth Receiver, Radsone has finally announced the HE100, a earphone retailing for a tasty $89. Claiming to offer the same hi-res sound that catapulted the ES100 to superstar status, the HE100 talks a big game. But how does it stack up to other earphones at the highly-competitive $90-ish price point?

Radsone Earstudio HE100 Review

Arriving on my review desk in a small cardboard retail package, the Radsone Earstudio HE100 comes with four pairs of eartips, a cable clip, and a carrying pouch.

In my hands, the HE100 feels solid and well-made, with an aluminum housing that holds up to prolonged abuse while remaining lightweight. Cabling comes in the form of a fixed, 4 ft (1.2 m) cord, terminating in a right-angled 3.5 mm plug. An integrated mic and single-button remote allows for taking phone calls on the go, as well as controlling playback.

Call quality seems decent, with my voice registering clear, and with no issues hearing the party on the other end. And, thanks to the one-button design the Earstudio HE100 remains universally compatible with almost any phone.

In terms of comfort, it’s all to easy to forget I’m even wearing the HE100. Sure, the realistic and intoxicating audio doesn’t help, but once these tiny earphones are placed inside my gigantic ears, the world just seems to melt away. At only 0.64 ounces, this baby is LIGHT.

Easy to drive, you could use the HE100 with almost anything – a cell phone, a hi-res player, some old iPod you’ve got just lying around. But perhaps the most clear-cut pairing would be to plug this earphone directly into Radsone’s own EarStudio ES100 Bluetooth Receiver.

Light on extras, big on sound!

Low End

Just slightly warm, the Radsone Earstudio HE100 delivers a relatively energetic and engaging sound. Subconscious toe-tapping and head-bopping will feel par-for-the-course once you get to listening. And while emotive, the lows remain detailed – enough so that bass guitars and drums seem to jump to life, while flatter synths seem bolstered by that same zest. Rest assured, if you like a little punch in your lows, you’ll dig the HE100.


Here the HE100 shows off a clean and clear sound that exhibits no distortion and only a whisper of compression. Overall it’s a very impressive midrange, with a solid sense of fidelity. Everything sounds great with these mids, but rock, hip-hop, and jazz really excel, as they take full advantage of the full midrange.

High End

In the highs, the Earstudio HE100 delivers a robust listening experience, with just a slightly bright profile. However, despite this characteristic brightness, there’s also a fair amount of detail at play. This lends something special to instrumentation and vocals, and works well with the emotive low end. The result crystallizes in the form of very low lows and very high highs, but with a solid midrange in between that won’t let you down.


With good depth and strong placement, the HE100 manages to deliver a real semblance of soundstage. Instruments never seem to crowded or with too much overlap. Likewise, vocals remain distinct alongside guitars, drums, and other instruments. Still somewhat hampered by an in-ear design, it may not be the best earphone for classical compositions, but it sounds pretty impressive with anything else.

Other Observations

With an impressive sense of detail and a not-too-accented frequency range, the sound of the Earstudio HE100 remains fairly analytical and accurate. However, there’s just enough bass and treble to keep things relatively fun and engaging, leading to a sound that works with almost any track.

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If you’re looking for a well-balanced sound, and a flood of detail, the Radsone Earstudio HE100 will not disappoint. At $89, this earphone provides an impressive sound for the Under-$100 Crowd.

Still, if you wanted a bit more mid-high emphasis and just a little less punch in the low end, I would recommend the Sennheiser HD1 In-Ear. Though slightly more expensive at $99, the HD1 still offers a goodly helping of audio fidelity in the form of a detailed and nuanced sound.

Bassheads might actually want to eschew both of these models in favor of a more low-end-heavy sound, like that of the Shure SE215. While still not overly-bassy, there’s just a little more warmth at play with this $99 IEM. However, that warmth comes at the expense of some high-end detail, as the SE215 feels just a little rolled-off in the highs.

Final Analysis

The Radsone Earstudio HE100 is built around a simple premise: great audio at an inexpensive price point. While not as high-fidelity as some more expensive offerings, they deliver fantastic audio for a faint $89. So, if you need a balanced, budget-friendly earphone, keep this pony in the running.

Get the Radsone Earstudio HE100 for the best price here:

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Bassman 100 review by Fender

\n \n Sound — 10
\n I use Vintage strats, tele’s, an old SG and LP Standard. Play mostly classic rock and blues with a little country. I use two 2X12 Avatar cabinets with this with two Celestion Vintage 30‘s in each. It has been recently serviced in that new caps were installed, pots cleaned, two sockets replaced due to age.\n\nThis thing is flat out ear bleeding loud. If you’re looking for some breakup at less than ear splitting volumes, this won’t cut it. It has more headroom than the Capital dome, which makes it excellent for pedals. I use a Radial Tonebone Plexi pedal, along with delay, chorus and reverb pedals. It is, without doubt, the cleanest amp I’ve ever played through. With two closed back cabs, it cuts, but it is smooth, sweet and full.\n\nIf the 100 watts is too much, pull two tubes and you’ve got yourself down to roughly 50 watts, which is more manageable. I’ve also run this with two yellow jackets el84’s at around 20 watts.\n\nNo noise what so ever. Absolutely quiet.

\n \n Overall Impression — 10
\n No matter what you play, from jazz to r&B to rock to metal, this is a powerhouse willing to push any cab up to its sonic limits. Only thing limiting this would be the player. Can be had relatively cheap on ebay for $400 or so, which is great for a head of this caliber. You’ll want an amp tech to go through it and replace anything worn, which would run you about another $100 in parts and labor, but it’s worth it. I have this, a ’67 Bassman 50 I also use, and a Fender Blues Deluxe for smaller gigs. Gotta love ’em.

\n \n Reliability & Durability — 10
\n This thing is built like a tank. Safe to say, it has had more beer poured down in that I care to remember and has been used as a doorstop, been dropped, been knocked over to the floor, and it just keeps on running. Has never, ever failed me on a gig except for when a tube went harmonic on me, but that isn’t the amps fault. It is a clean, efficient design, parts are available for it everywhere. Easy to maintain, easy to fix, and having the head separate from the cab allows easier transport than a full twin.

\n \n Features — 9
\n Technically, not a guitar amplifier, but I felt it should be included as more and more guitarists are discovering this brute. My head was manufactured in 1975. Silverface appearance. Two channels, bass and normal. Bass channel has volume, bass and treble. Normal channel has volume, bass, middle and treble. Also has a master volume. Tubes are four 6L6’s and three 12 ax7 preamp tubes, one preamp for each channel and one phase inverter. For what it does, it is simple, direct and to the point. I like that. If I want all sorts of bells and whistles, there are plenty of amps that provide that.

Casio CDP-S100 Review: Slim, Simple and Affordable, Is It Enough?

We’ve previously covered the newest keyboards from Casio.

The PX-S1000 and PX-S3000 were excellent digital pianos that delivered on the promise of brand-new takes on the time-tested Privia series.

As a quick refresher, the PX-S aimed successfully at being the slimmest digital piano ever without sacrificing too much in terms of playability.

Alongside the previously mentioned PX-S series, Casio also introduced the CDP-S series during their 15 th anniversary, another slim form-factor keyboard aimed at keyboardists and beginners wanting a more affordable instrument.

The CDP-S100 is priced in the same group as other sub-$500 pianos, like the Casio PX-160, Roland FP-10, and Yamaha P45.

Keyboards and digital pianos in this range don’t offer all the features of their more expensive counterparts, but that’s not to say they aren’t worth considering.

In one dedicated article, we’ve covered the best keyboards in this price range, so feel free to give that a read before diving into this review.

With affordable keyboards, we’re looking for something that plays well and sounds good. We want weighted keys and quality samples.

Everything else is a bonus, though it’s nice to get some options for features and functions.

Does the new Casio CDP-S100 fit in with the rest of the bunch? Let’s find out.

Casio CDP-S100 Specs

  • Scaled Hammer Action II keyboard with simulated ebony/ivory keytops
  • 88 full-size fully weighted keys
  • Touch Sensitivity (3 types, Off)
  • Sound: Dual-element AHL II sound engine
  • 64-note polyphony
  • 10 instrument sounds (3 acoustic pianos)
  • Modes: Dual (Layer)
  • Metronome, Transpose, Master Tuning
  • Speakers: 8W + 8W (two 12cm x 6cm oval speakers)
  • Connections: USB to Host, Headphone/Output jack (1/8″), Sustain Pedal jack, Audio In (stereo mini jack)
  • W x D x H: 52” x 9.1” x 3.9” (132.2 x 23.2 x 9.9 cm)
  • 23.1 lbs (10.5 kg)
  • Release Date: January 2020

Check the availability and current price of the Casio CDP-S100 in your region:


While the PX-S series has a striking look, futuristic chassis, and touch-based controls, the CDP-S series follows a more traditional design with the usual buttons and knobs.

Despite differences, the CDP-S100 is still a very slim keyboard.

The dimensions of the CDP-S100 is an impressive 52″ (132.2 cm) x 9.1″ (23.2 cm) x 3.9″ (9.9 cm), slimmer than the PX-S1000 which we praised. The CDP-S100 is also very light, coming in at 23.1 lbs (10.5 kg).

This was the design ethos behind the CDP-S series, and it shows. The lightweight CDP-S100 is easy to move around and allows you to practice anywhere.

This characteristic is further exemplified by the CDP-S100’s ability to run on 6AA batteries.

Now you can run the keyboard from the AC mains using the provided AC adapter, but 6 brand-new batteries should give you a full 10+ hours of battery life, which is no small feat considering the CDP-S100 has onboard speakers.

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Keys Width Depth Height Weight
88 52″ 9.1″ 3.9″ 23.1 lbs
88 50.5″ 10.1″ 5.5″ 27.1 lbs
88 52.2″ 11.6″ 6.0″ 25.4 lbs
88 52.0″ 11.5″ 5.5″ 24.5 lbs
88 52″ 9.1″ 4″ 24.7 lbs
88 51.6″ 13.2″ 4.6″ 25.1 lbs
88 52.2″ 11.9″ 6.5″ 26 lbs

Apart from its slim form factor, the chassis is standard. The materials are plastic, though the surface has a matte texture, so fingerprints are less of an issue.

In terms of sturdiness, the CDP-S100 is decent, with the chassis remaining solidly in place even when applying heavy force. If anything, the CDP-S100 should survive collisions, but perhaps with a few scratches.

The same build quality can be found in the volume knob, which stays in place and does not wiggle around. A good amount of resistance is also present, allowing precise volume changes.

I also like how the buttons feel, having a soft, tactile click that can be felt (but not heard) when each button is pressed down.

Something worth considering here is that the presence of physical buttons on the CDP-S100 might be important for the visually impaired.

Since the PX-S1000 and PX-S3000 use capacitive touch controls, piano players who rely on touch are disadvantaged since touch controls require the use of visual aids.

In terms of controllability, the CDP-S100 resembles other budget keyboards in this price range, including their button and key combos.

I never liked key combinations for accessing features and functions and will take dedicated keys any day.

Most keyboards relying on key combinations (like Yamaha’s YDP 144 and Casio’s PX-S1000) require the use of a manual, since there’s no on-board guidance.

Though you’ll memorize commonly used controls over time, this is not an intuitive arrangement. Even so, the CDP-S100 does it right.

On the front panel, printed text guides above the keys guide you through the process of changing settings.

Even without the manual, it’s possible to use the CDP-S100 without issues. Casio even managed to include a numeric keypad-styled input for the metronome tempo.

On top of all that, a helpful tone plays whenever you change a setting. For example, when switching between sounds, a beep sounds that indicates changes have been made.

The same tone occurs in a few variations to indicate effect intensity.

Overall, the control scheme here is nicely implemented. Key combinations may seem complicated, but they do make the front panel a lot less cluttered, which is understandable since there aren’t too many features requiring dedicated buttons.

If you can’t live without a graphical user interface, Casio’s Chordana Play for Piano app integrates with the CDP-S100.

This app is available on Android and iOS and streamlines navigation. We’ll cover this in detail in the Connectivity section, but the experience was just fine without it.

There isn’t any choice when it comes to coloring, as the CDP-S100 only comes black.

In general, the CDP-S100 follows a slim, standard design that hits all the right design cues and delivers a solid experience despite the limitations that come with a low price.


With the new PX-S and CDP-S line of keyboards, Casio has added a new key action to the mix, and it’s different than the trusted Casio Tri Sensor Hammer Action found on the previous Privia line of digital pianos.

With the CDP-S series, Casio uses their new 88-key, fully-weighted keyboard, which they call Scaled Hammer Action II.

It feels very similar to the keyboard found on the PX-S1000 and PX-S3000.

As we’ve covered in the respective reviews, these key actions are designed to accommodate the compact form factor and have shorter pivot lengths to reduce the overall width of the keyboard.

These keys are two-sensor key actions that track your keypresses passing through each sensor.

Unlike the keys found on the PX-S series, the CDP-S series does not have the so-called “smart” part of the action that relies on a software-based solution to track your keypress depth.

In terms of playability, this results in a slightly lower degree of accuracy, though from personal experience it still feels responsive. The keys are perfectly usable for practice and general playing.

Despite the downgrade from the PX-S series’ key action, the impressive feat of engineering that is the shortened width is still present, and the slim width of the CDP-S100 speaks for itself.

Now, that isn’t to say these keys are perfect. Sacrifices to the pivot length were required to achieve the smaller size, so the keys are harder to play at their upper points.

Specifically, this occurs at the upper points of the white keys, around 2 fingers from the intersection with the upper panel. If you have a habit of playing into the keys, this might be an issue.

However, if you’re a beginner, this is hardly going to be a problem, and this aspect of CDP-100’s keyboard is comparable to other entry-level piano on the market.

The keys themselves are plastic but have a simulated ivory and ebony feel, which gives a subtle grip that reduces the risk of slipping during play.

This isn’t something you get on most keyboards in this price range, so its inclusion is very welcome.

Overall, the keys play very good, especially when you consider their low price tag. While they’re slightly lighter than those found on acoustic pianos, they are a decent approximation of the real deal and work great for practice.

Touch sensitivity is also implemented nicely. The keys respond accurately to repeated key presses as well.

Speaking of touch response, there are 3 different intensity levels plus an OFF option.

Heavier settings require harder keypresses to trigger louder sound samples, and the reverse is true for the lighter setting.

I found myself liking the default setting, which delivered realistic feedback, even relative to the lightness of the keys.

I like this keyboard, even when compared to the rest of the competitors in this price range.

It beats Yamaha’s GHS action easily (which lacks textured keys and feels less responsive overall) and feels on par with Kawai’s offerings.

However, I still prefer Roland’s PHA-4 Standard action as found on the FP-10, and it is the same key action found on Roland’s midrange keyboards, which is a steal for the price.

In conclusion, Casio’s new weighted keyboard strikes a balance between playability and portability. In this price range, the keys are often passable at best, so the CDP-S100 excels in this regard.

While I’m not totally onboard with the compromises that achieve the small form factor, there’s no denying the quality of this option.


Budget keyboards aren’t always the best when it comes to sounds. Large sample libraries require lots of space and are expensive to implement fully.

However, detailed sounds are important for practice purposes, especially in terms of touch response.

The CDP-S100 uses an updated version of the AHL sound engine from previous keyboards, delivering up to 4x higher-res stereo audio compared to the previous sound engine.

In theory this means higher audio fidelity, but it doesn’t seem obvious in reality.

  • With the CDP-S100, you’re getting 10 sounds in total: 3 Grand Pianos (Standard, Bright, and Mellow) 3 Electric Pianos 2 Organs (Pipe and Jazz) 1 String Orchestra variation 1 Harpsichord

The piano sounds are well-sampled and differ from those in prior Privia digital pianos. Older budget Privias had piano sounds that felt scooped in mid frequencies, so I’m glad the new samples remedy that issue.

The new sounds are sampled from an unnamed concert grand and sound excellent and clean.

I suspect the same samples from the PX-S1000 are used here, though with fewer velocity layers and shorter decay (as expected from a budget keyboard).

The 3 variants are versatile and flexible. The standard piano is the perfect all-arounder and can handle songs from any genre with its clean, neutral tone.

The mellow piano preset is ideal for ballads and backing accompaniments. Finally, the bright piano covers your jazz and blues needs.

Personally, I recommend practicing with the standard preset, as it has the clearest tone of the bunch and allows you to pinpoint mistakes and weaknesses easily.

Pianos aren’t the only sounds included on the CDP-S100, and these can be used to spice up practice sessions or practice genre-specific playstyles.

The 3 electric pianos are a good selection of classic sounds, covering everything from classic Wurlitzers to FM synths.

I’m surprised at the responsiveness of these sounds, as playing hard really brings out the bite I’d expect from a real, amped-up Wurlitzer.

The harpsichord is passable at best, lacking the key-off samples that emulate a real harpsichord’s response to keys being released. Otherwise, this sounds as you’d expect and will help you practice Baroque-era pieces.

The string sounds are less than stellar, but these will mainly be used in conjunction with the Layer mode where they don’t take the spotlight.

Finally, the organ sounds are very nicely done. The keys work as organ slides and the sounds include an authentic emulation of a rotary speaker (albeit unmodifiable).

Essentially, the sound palette on offer is decent enough for practice purposes, with attention clearly given to the piano tones.

All in all, the sounds are suitable and can serve as a valid substitute for beginners who need a digital practice piano.


In terms of effects, the CDP-S100 comes with 2 built-in effects, a Reverb and a Chorus.

The Reverb has 4 algorithms and an option to turn it off as well. The algorithms differ primarily in their size parameter, going from a small room at level 1 to a large concert hall-style reverb at the maximum level.

Each pre-set has a default reverb setting and tweaks weren’t necessary during my play test.

Chorus comes in 4 different types, along with the OFF option. The chorus ranges from a subtle stereo widening effect to a lush detuned flanging.

This applies best to organs and electric pianos to emulate running real keyboards through an effects box.

I found that most sounds worked best with the subtle level 1 and 2 settings, with higher levels being a bit too much for my taste.

That’s it in terms of available settings.

You should note that beginners shouldn’t have effects active at high intensities during practice, as these could end up masking certain mistakes that may end up becoming habits in the long run.


Most of the contemporary digital pianos are equipped with 64, 128, 192 or 256-note polyphony.

You may wonder how it is possible to have 32, 64, or even 128 notes playing at the same time, if there are only 88 keys and we never play them all at once.

First of all, many of today’s digital pianos use stereo samples, which sometimes require two or even more notes for each key played.

Furthermore, using the sustain pedal, sound effects (Reverb, Chorus), dual-mode (layering), and even the metronome ticking sound takes up additional notes of polyphony.

For example, when you depress the sustain pedal, the earliest played notes continue to sound while you’re adding new ones and the piano needs more memory to keep all the notes sounding.

Another example of polyphony consumption is when you’re playing along with a song playback (can also be your own recorded performance) or auto-accompaniment.

In this case, the piano will need polyphony not only for the notes you’re playing but also for the backing track.

When you reach the polyphony cap, the piano starts to drop the earliest played notes to free up memory for new notes, which in turn affects the quality and fullness of the sound.

You’ll rarely need all 192 or 256 voices of polyphony at once, but there are cases when you can reach 64 or even 128 note limits, especially if you like to layer several sounds and create multi-track recordings.

It’s desirable to have at least 64 notes of polyphony.

The CDP-S100 has a maximum polyphony of 64 notes, which sufficiently covers all song types, whether classical songs or modern ballads.

While 64 notes is normal for budget keyboards, this is a bit on the low side, especially since most competitors, such as Casio’s PX-160 and the Korg B2 offer nearly double the polyphony count (128- and 120-note polyphony respectively).

A higher polyphony means that notes won’t cut off during play.

To be fair, it is hard to force cut offs to happen, even with 64 notes, though if you’re playing with sustained, layered voices, you might hear a few notes dropping out.


Much like the PX-S1000, I’m impressed that Casio included speakers on such a slim digital piano.

Even more impressive is that these are powerful, dual 8W speakers, when other competitors like the Roland FP-10 and Yamaha P-45 rely on dual 6W ones.

The back-firing speakers are quite powerful for the size and sound excellent, with no distortion, even at max volume, delivering a clean, wide soundscape.

The speakers have front-facing speaker grills, so you’ll be able to hear a clear tone even when it’s not placed close to a wall.

Though turning your volume up high isn’t recommended, it’s nice to know that the option is there if you need some extra volume.


As a budget piano, there aren’t many extra features on the CDP-S100, but all the necessities are included.


The CDP-S100 comes with only 1 special play mode, the Layer mode.

Layer mode allows you to play two sounds simultaneously and is a standard feature on most keyboards and digital pianos, regardless of price range.

The main way you’ll utilize this play mode is by layering strings with other sounds to get that classic, ballad backing tone. You can also layer the acoustic pianos with the electrics for a wide sound.

Unfortunately, Split mode isn’t an option here, and neither is the Duet Play mode that allows the keyboard to be used by student and teacher at the same time.


The main functions on the CDP-S100 include the following:

1) Transposing. This allows you to change the played key. Transpositions can be changed from -12 to +12 semitones in increments of 1 semitone.

2) Master Tuning. You can change the central tuning of the keyboard in steps of 0.2 Hz, from 415.5 to 465.9Hz. 440.0Hz is the standard default pitch for Middle A.

3) Metronome. Pressing the metronome button activates the in-built metronome. Tempo, time signature, and volume of metronome sound can be changed.


As a budget digital piano, the CDP-S100 has basic connectivity options, primarily focused on home-based use.

However, certain features can also be applied to stage and gig use (though not without jumping through some hoops).

If you want to practice with a backing track, you can connect your smartphone or music player to the Audio In (3.5mm) jack.

To use headphones, a Headphone/Output jack is provided and fits most consumer headphones with its 3.5mm (1/8″) mini jack.

To use the CDP-S100 with an external PA system or amplifier, you’ll also use this output, as there no dedicated line out jacks.

Finally, a USB type B port is included that connects the CDP-S100 to your smartphone (for use with supported apps) or to your computer as a MIDI keyboard.

This is also the port you’ll use to connect the CDP-S100 to the Chordana Play app.

Finally, a Damper Pedal jack allows you to connect any standard damper pedal to the CDP-S100. While Casio includes a pedal with each purchase, you can use any pedals you already own without any issues.

Chordana Play for iOS and Android

We’ve talked about this app throughout the review and it allows you to control the CDP-S100 with a graphical interface via your smartphone or tablet.

This is a common way for manufacturers to compensate for having no screen. Since the CDP-S100 is a budget keyboard, I can accept the screen’s exclusion.

The app itself integrates nicely when connected and allows you to use Casio’s piano tutorials and song teaching features.

Chordana Play also lets you control some functions on the keyboard, like switching between sounds and controlling metronome tempo.

While I found this app indispensable during my PX-S1000 review, I’m of a different stance with the CDP-S100.

The CDP-S100 includes helpful guides on the keyboard to assist with navigation and setting changes, so the main advantage of using the app is that you can always see the tempo of your metronome.

In short, the app will be helpful for novices thanks to the lessons if offers. Even if you’re not using the lesson functions, the control features might make the app worth it in the long run. There’s no harm in trying it out.


  • The Casio CDP-S100 comes with the following accessories: Music Rest SP-3 Damper Pedal AC Power Adapter Owner’s Manual

These are the basics you need to start playing, though we’ve included some recommended purchases down below.

Sustain Pedal

The included SP-3 damper pedal is a basic box-shaped pedal that isn’t very intuitive.

While it works well for practice purposes (and the CDP-S100 does not support half dampering), beginners should use the full-sized pedals that emulate the feel of those on real keyboards.

Casio SP-3 pedal

Personally, I always recommend the acoustic-like M-Audio SP-2 sustain pedal, which feels solid and is also very affordable.

Note: There’s no option to connect the CDP-S100 to an optional SP-34 triple pedal unit because it doesn’t have the required pedal port.

USB Adapter and Cable

A USB type-B cable allows you to connect the CDP-S100 to your phone (for the Chordana app) or your computer (for DAW or performance software). You may need an adapter to connect to your phone.

Read our MIDI Connection Guide to learn how to connect the keyboard to various devices and what you can do once connected.

Keyboard Stand

If you want a matching stand that makes the CDP-S100 feel right at home, consider the matching CS-68PBK (or its white counterpart if you like contrast).

It works with all the newly introduced Casio pianos including the CDP-S100, CDP-S350, and the PX-S series.

The slim form factor of the CDP-S100 means you can pair this nicely with nearly any stand available. So, if you’re looking for a more portable and affordable solution, consider buying an X- or Z-style stand.

Here are a few solid options I recommend:


Headphones come in very handy when you want to practice in private, focusing solely on your playing and not disturbing others nearby.

Moreover, a good pair of headphones will provide a clearer and more detailed sound compared to the onboard speakers.

Check out this guide to learn how to choose the best-sounding headphones for your digital piano.


    Slim and portable Surprisingly good keyboard for the price Well sampled piano sounds Accurate touch sensitivity Clean sounding speakers Decent user interface
    No onboard MIDI recorder Less than stellar connectivity options Keys have a shorter pivot length

As far as budget digital pianos go, the Casio CDP-S100 is a good choice for the price.

The key action and samples included with the CDP-S100 are new and they definitely show it when compared to the somewhat older keyboards in this price range. Overall, I’m impressed with the quality here.

While most of the innovations are ripped from Casio’s new flagship PX-S line, that’s not a bad thing, as evidenced by our immensely positive reviews for both the PX-S1000 and PX-S3000. As with those digital pianos, the CDP-S100 delivers good value in a compact package.

That said, the fact that this is compact may not be as relevant as you’d think. The PX-S series was designed for stage use, hence the portability factor, but I don’t exactly see why the CDP-S series needed the same treatment.

While the compact form factor is nice to have, it comes with the caveat of a shorter pivot length for the keys.

As a beginner, this isn’t much of an issue, but advanced players may find the keys slightly jarring, especially if they are used to more premium, authentic keyboards or actual pianos.

This hampers the otherwise excellent playing experience and feels like a sacrifice that ends up hurting the CDP-S100.

The compact form factor also doesn’t make much sense considering the limited connectivity options, so it clearly isn’t meant to be used on stage.

The main reason I recommend a lightweight digital piano for practice is if you’re always on the go, but that doesn’t seem like a large enough target demographic to warrant the new design.

Minor complaints aside, there’s nothing bad about the CDP-S100.

Back-facing speakers make the CDP-S100 right at home on a desk and you’ll enjoy the excellent speaker quality even without a stand (a common issue on keyboards with down firing speakers).

Piano sounds and key feel are subjective matters, and while I’m satisfied with the CDP-S100 in that regard, I recommend that you test things out before making your final purchase.

I strongly recommend considering the Roland FP-10 if you’re looking into the CDP-S100.

This uses Roland’s well-received PHA-4 Standard key action, which is used in other mid-range keyboards and has Roland’s SuperNATURAL piano modelling technology behind the piano sounds, delivering a more realistic sound to my ears.

In conclusion, the CDP-S100 is a great choice as a budget digital piano and is worth considering for beginners and intermediate players alike.

The keys feel good and the sounds are well sampled for the price.

If you’re looking for a good first digital piano to practice on or simply want a digital piano that’s portable and usable no matter where you are, then the CDP-S100 is a worthy option.

Check the availability and current price of the Casio CDP-S100 in your region:


The market of entry-level digital pianos is getting more and more competitive every year.

New features and technologies that earlier were available only on higher-end models are slowly but surely entering the entry-level digital piano market.

There are a number of strong competitors that you might want to add to your list along with the CDP-S100.

Check out our Best Beginner Digital Pianos Guide to learn more about the best beginner-friendly digital pianos on the market and how the CDP-S100 stacks up to them (including the CDP-S100’s big brother, the CDP-S350).

Thinkware F100 Review

  • Only Full HD resolution
  • No LCD panel or configuration options
  • Mediocre image quality

Key Specifications

  • Review Price: £109
  • 2.12MP Sony Exmor CMOS
  • MP4 recording at 1920 x 1080 and 30fps and 10Mbits/sec
  • G-sensor to detect accidents
  • Cable clips included
  • GPS and rear-view camera options

Trusted Reviews Live Prices

What is the Thinkware F100?

The F100 is an entry-level dash cam from Thinkware. My experience with Thinkware so far has been at the higher-end, with models such as the F800 Pro. The F100 costs £109, and £149 with the optional rear-view camera. Even so, it records Full HD, and you can add GPS as well to capture your location alongside video footage.

Thinkware F100 – Shooting specification

Thinkware reveals that the F100’s CMOS has 2.12-megapixels and is made by Sony. But this is enough for the Full HD resolution that is this dash cam’s top mode – and, indeed, its only mode. Footage is recorded in MP4 format at 30fps and 10Mbits/sec, which is a little low for Full HD.

On Amazon, the F100 bundle with rear-view camera also includes a 16GB microSD card. This capacity will be sufficient for 3hrs 33mins of footage from the main camera, although if you have the rear-view camera as well then this duration will be reduced.

Like the F800 Pro, the F100 doesn’t have a screen, so it will take a combination of guesswork and trial and error to ensure it’s pointing in the right direction.

Thinkware F100 – Mounting options

Thinkware only provides a mount with a 3M adhesive patch in the box, although a second replacement patch is included. There’s no suction cup included, since this isn’t a dash cam that you’re meant to take in and out of your vehicle.

In fact, if you also have the rear-view camera and GPS options (see below), you’ll have three cables to unhook; it really isn’t practical. Note, however, that the F100 is rather small and discrete, making it less likely to be noticed when installed in your car.

There’s a welcome attention to detail with the bundled mounting kit, which also includes three 3M adhesive clips to help you route the cables neatly around your car windscreen.

With the usual lengthy car power adapter cable supplied, these clips are very handy and something most dash cam manufacturers don’t bother to include. But the adapter itself is permanently attached to its cable, which will be an issue if you want to use your car’s cigarette lighter power plug for a satnav or lighting a cigarette, for example.

Thinkware F100 – Settings and menu

This is going to be a rather short section of the review, because the F100 has only a single button and no menu. There’s no Wi-Fi either, so you don’t even have the option to use a smartphone to preview video while adjusting the direction of the camera during installation.

This also means that there are no settings or alternative shooting modes. You just plug in the F100; when the car is on and the cable is supplying power, it will record. When you turn off the car, the F100 will stop recording, although you can use the button on the end to start and stop recording manually if needed. And that’s it.

Thinkware F100 – Rear-view camera and GPS options

As we’ve hinted already, there are some upgrade options available for the F100. These include a rear-view camera and external GPS unit, which plug into separate mini-jacks on the end of the cylindrical main unit.

The GPS unit costs around £30 and comes with a small cable, so you’ll need to attach it on the windscreen close to the main F100 unit. This is supplied with 3M adhesive tape like the dash cam, so it can be stuck directly to the glass.

Once installed, the GPS works with a ready-installed database of safety camera locations to warn you when you’re approaching speed traps. I found this included the average speed zone on the North Circular, which was installed a year or so ago, showing the database is quite current.

The GPS also records your location alongside video. There’s software for Windows and Mac included on the device itself, which auto-updates to the latest version once installed. When you view footage with this software, it shows the position on Google Maps as the video plays.

The rear-view camera looks identical to the one included with the F800 Pro and for the F770, but none of these are compatible. This version only records at 720p resolution rather than 1080p, so won’t deliver the same quality. It adds £40 to the bundle price, and costs £60 on its own.

The rear-view camera captures video at 6.7Mbits/sec, so with this running alongside the front camera, the 16GB microSD card bundled will last 2hrs 7mins before looping occurs.

There’s also a version of the rear-view camera that has infrared LEDs for recording in complete darkness. This adds £50 to the bundle price, and there’s also a weatherproof external version for an extra £100. I wasn’t supplied with either, however.

Thinkware F100 – Image quality

The F100 doesn’t have the data rate of the higher-end F800 Pro, and this is evident in the quality of the footage. There are clear signs of compression artefacts, which makes the text on road signs and number plates hard to read unless viewed up-close and when relatively stationary. Colour and contrast are acceptable, however.

The 720p rear footage suffers even more greatly from compression softness – and, as usual with rear cameras, is also quite dependent on the configuration of the rear window on your car. My car’s rear window is quite bulbous, so the image is very distorted at the edges. But a saloon car with a flatter rear window would have fewer problems.

Why buy the Thinkware F100?

If you add the GPS and rear-view camera, the Thinkware F100 is quite a comprehensive package, despite the lack of an LCD screen. However, the image quality isn’t great. There are cheaper options with equal or better performance, such as the Aukey DR-01. However, few alternatives have the ability to add a GPS or rear-view camera, so the F100 does have a few useful tricks up its sleeve.


The Thinkware F100 benefits from optional GPS and rear-view camera add-ons, but image quality is mediocre.

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