Wi-Fi speaker Sonos Era 100 entices with excellent sound and smart features, now it's a fifth cheaper

A smart speaker from an established brand that sounds much bigger than it looks and can be gradually expanded into a multiroom system. The Sonos Era 100 now costs 4,632 CZK instead of 5,790 CZK with code ALZADNY20. It impresses with excellent audio, surprisingly deep bass, and support for practical features.

Quick summary:
✅ Makes sense if you want quality sound in a compact body, multiroom, and the option to expand the system with more Sonos devices over time.
⚠️ Consider that the speaker does not support voice assistants like Alexa in the Czech Republic, does not have Chromecast, and does not run on battery.
💡 For 4,632 CZK, you get premium sound and the Sonos ecosystem, but expect the necessity of an app and an account.

Why this speaker is interesting

The main advantage of the Sonos Era 100 speaker is its sound, which significantly exceeds the device’s size. The successor to the popular Sonos One model added two angled tweeters for true stereo and a mid-woofer with surprisingly deep bass. This is confirmed by many users, who say the sound is exceptional for such a compact body.

The second argument is the Sonos ecosystem. The speaker is part of a multiroom system, so you can pair two units into a stereo pair or add them to a Sonos soundbar as rear surround channels. It is an established premium brand with a rating of 4.7 out of 5 (140 reviews) and very low complaint rates, so you’re not buying an unknown piece.

Key parameters explained in plain language

Inside, two tweeters and one mid-woofer are at work, powered by three Class D digital amplifiers. A key feature is Trueplay, which automatically fine-tunes the sound according to room acoustics via a built-in microphone and app. You can stream via both Wi-Fi and Bluetooth 5.0 (which is new compared to older Sonos models), and AirPlay 2 as well as direct playback from services like Spotify or Tidal are supported.

Control is handled by a touch surface with a capacitive volume slider. However, it’s good to know what the Era 100 lacks: it’s not a portable speaker because it doesn’t have a battery and is powered from an outlet. Wired connection (e.g., a turntable) is only possible via a separate Sonos Line-In adapter, which is purchased separately.

What users say

On Alza, the speaker has a rating of 4.7 out of 5 from 140 reviews, 93% of customers recommend it, and the complaint rate is at a very low 0.48%, with over 2,000 units sold. Most often, people praise the sound quality, elegant minimalist design, and easy system expansion with additional speakers. It is repeatedly stated that it is a great foundation and complement to Sonos soundbars.

There are also criticisms. Some users perceive the bass in an apartment as boomy, and a minority would welcome a subwoofer for a full experience. Repeatedly, there are also mentions of more complicated initial setup, which requires an app and an account, and some have encountered occasional disconnections via AirPlay or Wi-Fi. Sonically, however, for this size, it is one of the best choices according to most.

What to watch out for

The most important aspects are regional limitations, which the product description doesn’t fully capture. Voice control via Amazon Alexa does not work in the Czech Republic — Sonos does not support it here; only a limited Sonos voice assistant is available. Similarly, the speaker does not have Chromecast (Google Cast), although this sometimes appears incorrectly in descriptions. If you need these features, be aware that you won’t get them.

The second thing is the dependence on the Sonos app and account. For the initial setup, you need the app, registration, and Wi-Fi, which is more time-consuming compared to a regular Bluetooth speaker, and some users find it complicated. And as we mentioned, the speaker does not run on battery and wired input is only possible via a paid adapter, so it’s not suitable as a purely portable or simple AUX speaker.

When it doesn’t make sense

If you are looking for a portable Bluetooth speaker with a battery for outdoors or a cabin, the Era 100 is not it, and a classic portable model will serve you better. Similarly, if you want simple connectivity without an app and account or rely on Google Cast or a voice assistant in Czech, you will run into issues here. And whoever requires powerful bass for electronic and dance music in a larger space should consider adding a subwoofer or opt for a larger model.

Verdict: for whom the discount pays off

The Sonos Era 100 is a successful premium speaker for home listening for those who want excellent sound in a compact body, multiroom, and the option to expand the system over time. At 4,632 CZK with code ALZADNY20 instead of 5,790 CZK, it’s an attractive price for an established brand with a high rating. Whoever takes it for granted that it will run via Wi-Fi and the Sonos app will get a great-sounding piece for 4,632 CZK. However, if you want a portable speaker with a battery, Chromecast, or a voice assistant in the Czech Republic, choose a different path.

Would a Sonos multiroom system appeal to you, or would you prefer a portable battery-powered speaker?