Verdict
Head-to-head · Best Computer Speakers with Subwoofer

Logitech Z313 vs Logitech Z623

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Logitech Z623 comes out ahead by a narrow margin (4.3 vs 4.6). The gap is mostly about gamers on a budget who want THX certification without paying ProMedia prices — read the strengths below before deciding.

Logitech Z313
Ranked #5 in Best Computer Speakers with Subwoofer
Logitech Z313
$50

The Z313 is the entry-level pick. At ~$50 it's roughly a quarter the price of the next-cheapest pick. Plug-and-play 2.1 with a small sub — adequate for casual use, dorms, kids' setups. Outgrown faster than every other pick here.

Strengths
  • Cheapest 2.1 pick by a wide margin — under $50
  • 25W peak power + compact 4" sub
  • Plug-and-play 3.5mm — works with any device
Watch-outs
  • Lowest power and smallest sub in this lineup
  • Plastic build — feels much lighter-duty than every other pick
  • Outgrown quickly by anyone serious about audio
Logitech Z623
Higher ratedRanked #2 in Best Computer Speakers with Subwoofer
Logitech Z623
$150

The Z623 is the budget THX pick. Same THX-certified standard as the Klipsch ProMedia 2.1 at $50 less, with multiple inputs. Aging design means no Bluetooth — wired-only setup. Best for gamers on a tighter budget.

Strengths
  • THX-certified — same standard as the Klipsch ProMedia 2.1 at lower price
  • 200W RMS / 400W peak total power
  • Three inputs (RCA + 3.5mm × 2) — connect computer, TV, console simultaneously
Watch-outs
  • Aging design (released 2011) — no Bluetooth, no modern features
  • Volume / bass / treble knobs on the right satellite can be inconvenient to reach
  • Top end less detailed than the Klipsch ProMedia 2.1

How they stack up

Logitech Z313

Cheapest pick. Smallest sub. Lowest power. Best as a first 2.1 system for dorms / casual setups.

Logitech Z623

Cheapest THX-certified pick. More inputs than the Klipsch ProMedia 2.1. No Bluetooth (Logitech Z407 has it). Older design than every other pick here.

Specs side-by-side

SpecLogitech Z313Logitech Z623
Configuration2.12.1
Power25W peak200W RMS / 400W peak
Subwoofer4" downward-firing7" downward-firing
Input3.5mm
ControlsWired desk pod
InputsRCA + 2× 3.5mm
CertificationTHX
← See the full ranking of best computer speakers with subwoofer