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
- +Compact satellites + downward-firing 7" sub
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 it compares
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.
Who this is for
At a glance: gamers on a budget who want THX certification without paying ProMedia prices.
Why you’d buy the Logitech Z623
- 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.
Why you’d skip it
- 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.
Rating sources
Our 4.6 score is the average of these published ratings. More about methodology.


