Some products just work and there is no reason to change them. Logitech Z623 has been on sale since 2018 and continues to garner rave reviews. Reason? For three thousand you get great sound with THX certification.
Bass that moves the neighbors
The 2.1 setup combines two satellite speakers with a decent subwoofer. Together it offers power 200 W RMS and THX certification, which guarantees a certain standard of sound quality. In practice, this means rich bass starting already around 30 Hz and clear highs – the mids are a bit weaker, but that’s normal for this price category.
Connecting is simple: you have at your disposal 3,5mm jack i RCA (cinch)so you plug in your computer, console and TV. On the right speaker you will find the volume control and headphone output. Unfortunately, the cables are fixed and relatively short – take that into account when planning your deployment.
What 149 customers say
Alza has a system 4,8 z 5 from 149 reviewers – that’s an exceptionally high score. Reviews agree: “You can’t buy a better speaker for this price,” writes one user.
But one warning is repeated: the subwoofer is way too loud. Most users recommend setting the bass to no more than a quarter, otherwise it overdoes it. And if you live in a block of flats, one reviewer points out: “The neighbors say the whole apartment is jumping and is uninhabitable… and that’s just a few percent of the performance.” Great in a family house, better to be careful in an apartment.
The subwoofer weighs 7 kg and has dimensions of 30 x 28 x 27 cm – it’s not a crumb, count on the space under the table. Satellites are more compact (20 × 12 × 13 cm). Regular price is 3,699 CZK, with discount code ALZADNY15 now you will get a report for CZK 3,144. It’s a fair price for a proven classic with THX certification.
Do you have experience with Logitech speakers?
date:2026-02-06 17:00:00
Worth a look