Why you can trust TechRadar
We spend hours testing every product or service we review, so you can be sure you’re buying the best. Find out more about how we test.
Kaleidescape Strato E: One-minute review
Kaleidescape is a California-based company that has been at the forefront of digital home movies since 2001. While its brand name is likely known predominantly in the custom-install market for those with the space (and budget) for dedicated home theaters, the Strato E represents the most accessible route for anyone wanting to experience the best possible video and sound quality at home.
It’s an entry-level 4K movie player, slotting itself between the Strato M 2K player and the Strato V 4K player. By this, I mean the Strato E supports 4K Ultra HD movies, along with HDR10 and Dolby Vision HDR formats and is the cheapest Kaleidescape product to do so. The more expensive Strato V does the same, so to get the Strato E down to a more approachable price, Kaleidescape has dropped the internal storage from 960GB to 480GB and removed a few of the connections from the player’s rear panel.
The limited storage is something any potential buyer should think carefully about, as it’s only enough space to store around six 4K movies, downloaded from the Kaleidescape Movie Store, at any one time. The only way to expand the storage is to invest in one of the company’s Terra Prime servers, but with prices for these starting at $6,955 / £5,910 / AU$12,499, it’s a huge extra expense.
Aside from the players’ abilities, Kaleidescape’s other key selling point is its Movie Store. Not only is it the only way of obtaining content to watch, but it’s a gorgeous and fun interface to interact with. Content is displayed in rows that can be scrolled through quickly, with posters looking vibrant and sharp. It provides plenty of information for each title, including video and sound quality, cast and crew and even Rotten Tomatoes critic ratings. A nifty way of displaying related content also makes it great for discovering new titles.
As with many of the best streaming services, however, the content you have access to depends on where you live. The US gets the best version of the Movie Store, with several titles available to buy and download before they’re released on physical media. While limited, I was happy with the amount of content available in Australia, where I’m based, and I was pleasantly surprised by the cost of movies, which is comparable to (and sometimes cheaper than) 4K Blu-ray discs.
The content looks and sounds stunning via the Strato E. Colors are exemplary, blacks and shadow detail are the best I’ve seen from any home-entertainment source device and Dolby Atmos soundtracks – which are delivered in full lossless audio – more than prove why Kaleidescape demands the money it does. If picture and sound quality are important to you, you’ll notice a night and day difference between what the Strato E can offer compared to what you get from streaming services and, to an extent, 4K Blu-ray discs. You just need to be able to make your budget stretch to do so.
Kaleidescape Strato E: Price and availability
- Released May 2025
- List price: $2,995 / £3,399 / AU$5,299
The Kaleidescape Strato E movie player was released in the US and Australia in May 2025, with a launch in the UK following soon after. It’s available in all three territories from registered dealers and select online sellers.
The Strato E has been introduced as a more affordable, entry-level 4K movie player and now finds itself sitting in the middle of Kaleidescape’s current three-strong lineup, between the Strato M 2K player ($1,995 / £2,395 / AU$3,499) and higher-specced Strato V 4K player ($4,495 / £5,389 / AU$7,999).
At $2,995 / £3,399 / AU$5,299, it’s certainly still a pricey bit of kit, but considering the quality Kaleidescape offers, combined with the fact it has a similar spec sheet as the Strato V, it does present as good value.
One of the key differences between the Strato E and Strato V is the amount of onboard storage – 480GB vs 960GB – and so if you want to download a large library of movies or TV shows, you’ll almost certainly need to factor in the additional cost of one of the company’s Terra Prime servers – which start at $6,955 / £5,910 / AU$12,499 for a 12TB HDD – or make the leap to the Strato V.
Kaleidescape Strato E: Specs
|
Built-in storage |
480GB SSD |
|
Resolutions |
Up to 4K (3,840 x 2,160) 60fps |
|
Bit rate |
Up to 100Mbps |
|
Audio support |
Dolby TrueHD, Dolby Atmos, DTS:X, DTS-HD Master Audio |
|
HDR support |
Dolby Vision and HDR 10 |
|
Aspect ratios |
1.78:1 and 2.35:1 (automatic or user interface selectable) |
|
Connectivity |
HDMI 2.1 |
|
Dimensions |
16.26 x 2.8 x 16.26 cm / 6.4 x 1.1 x 6.4 inches |
Kaleidescape Strato E: Design
- Excellent build quality
- Superb remote app
- Limited connections
The Strato E adopts a slightly different aesthetic to the Strato V, yet still very much looks like a premium product. Where the higher-end Strato V is made from anodized aluminum, the Strato E is built with black perforated steel. The perforations allow you to take a peek at the circuitry inside, and upon startup, a blue light glows through them. The light turns off during use so as not to distract you from the main event.
The ventilation afforded by the perforations means the Strato E remains cool and completely silent during use too. It has 480GB of onboard storage, which is enough for around six 4K movies downloaded from the Kaleidescape movie store.
This is my first time experiencing a Kaleidescape product, and, having read reviews of the company’s other models and salivating over various images on its website, I was a little taken aback by just how compact the Strato E was when I opened the box. Its diminutive dimensions make it easy to accommodate in/on TV units, and, thankfully, an optional faceplate is available for mounting onto an equipment rack, along with a dual faceplate for use with a compact Terra Prime server. You’ll likely need the latter if you want to hold on to more than the six 4K titles that you can save locally on the device itself.
Connecting the Strato E to your TV or home theater system is via HDMI only and Kaleidescape provides a THX Certified cable in the box. The only other connections on the rear of the unit are an Ethernet for a wired connection – essential, as there’s no Wi-Fi connectivity – a USB-A port for connecting external storage devices or a disc drive, and the 12V power input. The power cable integrates a brick, and both cables at either end of it are relatively long, so you should have little issue getting everything connected in your space.
A remote control is also supplied. It’s a simple unit, although it adopts a trapezoid shape for a touch of style. It does the job well, although it would’ve been nice for it to have been backlit (my colleague Stephen Withers said the same of the Strato V’s remote), although I spent the majority of my testing using Kaleidescape’s smartphone app.
The latter offers a seamless connection to the player, provides access to the movie store and can be used as a remote to navigate menus. Plus, it has the added benefit of letting you use the phone’s built-in keyboard to type in search terms.
Kaleidescape Strato E: Features
- Highest video quality
- Full lossless audio
- Extra storage options available
With the Strato E effectively arriving as a more affordable alternative to the Strato V, and being capable of supporting 4K HDR content, it’s ultimately designed to offer the best possible video and audio quality of any home entertainment device available. It supports resolutions up to 4K (3,840 x 2,160) at a maximum frame rate of 60p. Dolby Vision and HDR10 support is also here, as is lossless audio, including Dolby Atmos and DTS:X.
The key factor allowing the Strato E to deliver such high quality is that it’s not limited to a file size or bit rate. Compare this to 4K Blu-ray discs that have storage limitations or the best streaming services that compress movies so they can run with minimal buffering, and you start to realize why Kaleidescape movie players command the price tags attached.
As mentioned earlier, the 480GB of solid-state storage means there’s only enough space for up to six 4K movies, but the Strato E can upscale HD or SD movies to great effect and allow you to save more files in the bargain. For the absolute best quality, however, you’ll want to stick with 4K.
Any movies you buy will remain on your account in the cloud, so if you run out of space and want to download something new, an older movie can be removed from storage to be accessed and downloaded again at a later date.
If you want to build a larger library of movies, you’ll need to invest in a Terra Prime server, with prices starting at $6,955 / £5,910 / AU$12,499 for a 12TB HDD. Prices currently max out at $79,995 / £55,500 / AU$139,999 for 123TB. A server can provide simultaneous playback to up to 25 Kaleidescape players in one home, should you have the space, need, and, importantly, budget.
While the Kaleidescape Strato E is likely to be something only those with dedicated home cinema spaces gravitate towards, the fact that it can work as a standalone unit, and that it’s compact, means anyone who values the best possible video and audio quality can get involved.
Kaleidescape Strato E: Setup
- Web-based interface provides more in-depth setting adjustments
- Owned discs can be catalogued
- Movie Store content is location-dependent
Kaleidescape has made the Strato E as fuss-free to set up as possible. Simply plug it into mains power, insert an Ethernet cable and connect it to your TV or AV processor via HDMI and you’re away. You’ll be met with some onscreen instructions that are easy to follow and understand, and you’ll soon be able to access the movie store and enjoy the content.
You will need to set up an account with Kaleidescape, including providing card information as a means of payment to purchase movies or TV shows from the online store on an ongoing basis. While you can access essential settings via the player itself, a web-based interface offers greater control. To access this, you’ll need to enter the player’s IP address (found in the settings menu) into a browser on your computer.
You’ll soon learn that the majority of settings on the web interface can be left as is because the Strato E can determine what your system is capable of in terms of video and audio quality, and optimize itself accordingly to perform at its best. For example, it will be able to determine if you have a 4K display with a 5.1-channel speaker system. If you use a projector, you can adjust the aspect ratio to fit a 2.35:1 screen.
Aside from the physical capabilities of the Kaleidescape Strato E, one of the biggest selling points of the ecosystem as a whole is the Movie Store, as it’s the only method of obtaining content. Where you live will determine what you have access to due to licensing agreements, but this is also the case with many streaming services. As expected, the US store has the greatest range of content, including movies that have only just left cinemas. In Australia, where I’m based and this review was conducted, I could tell early on that the library wasn’t particularly vast, although many of my favorite flicks were available.
Kaleidescape says there are currently about 15K titles on the US store, around 12K and 7K on the Canadian and UK stores, respectively, and just about 5K on the Aussie store. However, since the Australian store only launched in April 2025, the amount of content already available is commendable. The company promises it will continue to populate the store with more titles in all territories where Kaleidescape players are available.
To help build your collection, the company offers the option to catalog any Blu-rays or DVDs you already own. I wasn’t able to test this feature, but in essence, you can connect an external disc drive with the USB input to trigger the Strato E to enter a Recognition Mode. (I wasn’t able to test this feature as I don’t have an external disc drive.) Insert a disc, and the player will search the Movie Store for a digital version that you can then purchase to download.
The company says that you can usually download that title at a discounted rate, although pricing is influenced by each production studio. What’s more, if you own a DVD and the Movie Store has a 4K version, you can purchase the higher-quality version if you wish.
Kaleidescape Strato E: Performance
- Outstanding picture and sound quality
- Interface is simple to navigate, but not always easy to search
- High-speed internet connection is ideal
As soon as you finish setting up your new Kaleidescape Strato E, you’re presented with the Movie Store. It’s a good-looking interface that’s quick to navigate using either the supplied remote or the smartphone app.
Content is logically laid out, with a selection of recommended titles along the top row, content you’ve downloaded but not yet watched on the next row down, followed by sections for paused movies, content you’ve watched and anything you’ve saved to your favorites list. After this are categories for genres, along with a dedicated section for 4K Dolby Vision titles.
Searching for something specific is mostly a fuss-free affair, especially when using the smartphone app, because, as previously mentioned, you can quickly type in a title using your phone’s keyboard. I was surprised (and a little disappointed) to find, however, that typing in ‘Dolby Atmos’ didn’t return any results. I eventually found filters when browsing the Movie Store within the smartphone app, including one for Dolby Atmos, among many others, so the search isn’t as intuitive as I had hoped.
One particularly good feature of the Movie Store is the ability to summon related content when hovering over a particular title. For example, when highlighting Top Gun: Maverick, press the Kaleidescape logo button on the smartphone app, or navigate to Explore > Related Content on the movie’s information page using the physical remote, and the Movie Store interface kicks into action, reorganizing all available and related content around it.
This includes movies similar in style and genre; for the Top Gun example, I was presented with Tom Cruise movies and other content either from the same director or starring supporting actors. It’s a quick and easy way to instantly discover new titles and a feature I found myself using an awful lot – not least for the aforementioned discovery, but also because watching poster thumbnails float around my TV screen was just cool to see.
Once you’ve found something you want to watch, then, as mentioned, you need to first download it. Due to the large file sizes, a very high-speed internet connection is practically a necessity if you want to minimize the time it takes from selecting a movie to watching it. Where I’m based in Australia, I can only achieve a maximum download speed of 100Mbps (multi-gigabit plans are available, just not in my apartment building), which made me nervous that it would take days to download a single title.
When I set The Batman to download, it had an immediate effect on my network, and shows I was trying to watch on other services kept buffering – all of the available bandwidth was going to Kaleidescape.
To get around this problem, I set The Batman, along with Wicked and Gravity, to download overnight and sure enough, when I woke up the next morning, they were there. Remember when you’d wake up as a kid on Christmas morning to see presents under the tree? That was the exact feeling I had that morning.
The app lets you know how long each piece of content took to download, with The Batman taking the longest at just under three hours (Gravity, being an HD movie, finished in 40 minutes). Kaleidescape says if you have at least a 1Gbps internet connection, you can reduce the download time of a 4K movie to around 10 minutes.
If you have a high-speed internet connection, you can also set the maximum download speed for Kaleidescape. For example, with a 1Gbps plan, you could set Kaleidescape to max out at 600Mbps, leaving you with bandwidth so you can continue to watch other content at the same time.
Having read reviews of other Kaleidescape products, and having a good understanding of what makes the brand so appealing to home theater enthusiasts, it’s safe to say I had high expectations of the Strato E. And those expectations were exceeded. For context, I had the Strato E connected to an 83-inch LG G5 TV and a Sonos home theater system comprising the Sonos Arc Ultra soundbar, two Sonos Era 300 speakers for surrounds and a Sonos Sub 3.
Watching the opening scene of Wicked, the Wicked Witch of the West’s hat sitting in a puddle looked absolutely stunning. I compared it to the 4K Blu-ray version and noticed extra sharpness and detail when watching on the Strato E. Blacks were slightly deeper and the light reflection on the puddle glistened with greater intensity.
What took me by surprise the most, however, was the Dolby Atmos soundtrack. When the flying monkeys swooped in from behind the viewing position and smashed out of the window, I was blown away by the pinpoint accuracy of the movement from behind my seated position and towards the screen. It really was like being in a cinema; in comparison, the effect just wasn’t as pronounced when watching the Blu-ray version with the same home-theater setup.
It was a similar story when watching Gravity. Not only did the picture look incredible – the Strato E did a fantastic job of upscaling HD content, with the deep blacks of space well-defined and brighter lights shining with great intensity – but the Atmos mix was conveyed expertly through my speaker system. When Sandra Bullock and George Clooney’s characters are spinning out of control at the beginning of the movie, the soundtrack panned around my living room to great effect.
The Strato E truly shines with live concert recordings. As I mentioned in this issue’s lead-in, I downloaded and watched Hans Zimmer: Live in Prague — available in 4K Dolby Vision and, crucially, recorded in Dolby Atmos. I’d seen the soundtrack maestro perform in Sydney earlier this year — if you ever get the chance, grab a ticket, you won’t regret it — so I was curious whether a Kaleidescape playback of one of his shows could capture the same energy.
It did. The scale of the music hit me from the first note. My Sonos home theatre system was finally given a soundtrack that pushed its limits — I hadn’t realised how convincingly it could handle the dynamics of Zimmer’s iconic scores. When The Dark Knight Trilogy suite kicked in with Like a Dog Chasing Cars, the Strato E expertly reproduced the shifts from hushed, delicate passages — a lone violin or a subtle electronic texture — to the thunderous crescendos of the full orchestra, all without sounding compressed or strained.
That sense of contrast gave the performance real drama and made the experience feel startlingly lifelike. While I didn’t have a Dolby Atmos passive speaker system to test the Strato E’s talents — nor do I have a dedicated home cinema space — the player was able to deliver an impactful performance in my modest setup. Those with full Atmos rigs are in for a treat.
Should you buy the Kaleidescape Strato E
|
Attribute |
Notes |
Score |
|---|---|---|
|
Value |
It’s highly subjective, but as an ‘affordable’ entry point to the best picture and sound quality available, it’s worth the investment |
5/5 |
|
Design |
Excellent build quality and a superb smartphone app; more outputs would be nice, but the cost would inevitably increase |
5/5 |
|
Features |
Unrestricted file size for the best quality, and can be paired with servers for more storage |
5/5 |
|
Performance |
Unmatched picture and sound quality, especially content in 4K Dolby Vision and with object-based soundtracks |
5/5 |
Buy it if…
Don’t buy it if…
How I tested the Kaleidescape Strato E
- Tested over a period of 4 weeks
- Connected to LG G5 OLED TV and Sonos home theater system
- 4K Dolby Vision and HD content used
I tested the Kaleidescape Strato E at home in my living room, connected to an LG G5 OLED TV, partnered with a Sonos home theater system in a 7.1.4-channel configuration to take advantage of Dolby Atmos soundtracks. I wasn’t able to evaluate DTS:X soundtracks, however, as my Sonos system can’t decode it.
Kaleidescape kindly provided me with some credit to spend in the Movie Store, as opposed to preloading it with content, so that I would have the same experience as any new customer.
Read more about how we test.
First reviewed August 2025
Read the full article here
