Klipsch ProMedia 2.1 THX vs Logitech Z623

Short answer: the Klipsch ProMedia 2.1 THX. It ranks #2 of 8 powered subwoofer and satellite combo speakers by sound quality, rated 3.4/5, at $167.49; the Logitech Z623 ranks #5, rated 3.2/5, and costs $172.89, so there is not much of a tradeoff to weigh.

Why pick the Klipsch ProMedia 2.1 THX: The long-standing benchmark in high-output 2.1 multimedia audio, delivering 200W continuous / 260W peak power across a 6.5-inch side-firing ported subwoofer and dual two-way horn-loaded satellites. The catch: The tonal signature exhibits Klipsch’s characteristic forward treble elevation that can sound bright on poorly recorded material without EQ.

Why pick the Logitech Z623: A high-output 200W RMS / 400W peak THX-certified 2.1 system engineered for room-filling PC gaming, movie watching, and party playback. The catch: The acoustic tuning prioritizes visceral bass impact and energetic highs over audiophile midrange neutrality, resulting in a somewhat scooped frequency response.

Buy the Klipsch ProMedia 2.1 THX. It is rated higher for sound quality than the Logitech Z623 and costs less, which makes it the one to get unless you need something the other one does better.

Still deciding? The full Powered Home rankings cover every ranked option.

Specifications Side By Side

Related Speaker Comparisons

How Klipsch ProMedia 2.1 THX compares with other leading options:

• Edifier S350DB vs Klipsch ProMedia 2.1 THX
• Klipsch ProMedia 2.1 THX vs Harman Kardon SoundSticks 4
• Klipsch ProMedia 2.1 THX vs Klipsch ProMedia Lumina
• Klipsch ProMedia 2.1 THX vs Logitech Z407
• Logitech Z623 vs Logitech Z407

Prices on this page were last checked October 11, 2026 at 4:59 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

As an eBay Partner, we may be compensated if you make a purchase.

The Two Speakers In Full

Klipsch ProMedia 2.1 THX: $167.49 Amazon eBay

Pros: The long-standing benchmark in high-output 2.1 multimedia audio, delivering 200W continuous / 260W peak power across a 6.5-inch side-firing ported subwoofer and dual two-way horn-loaded satellites. Klipsch’s 90 x 40 MicroTractrix horns deliver energetic, dynamic highs and exceptional dialogue clarity, while the dedicated subwoofer delivers authoritative desktop bass punch down to approximately 40Hz with THX certification headroom. Simple plug-and-play 3.5mm analog connection makes it universally compatible with PCs, monitors, gaming consoles, and DACs.

Cons: The tonal signature exhibits Klipsch’s characteristic forward treble elevation that can sound bright on poorly recorded material without EQ. The proprietary control pod cable and hardwired satellite wiring can be vulnerable to wear over long-term use. No digital optical or USB inputs.

Full Klipsch ProMedia 2.1 THX review and specifications →

Amplifier Power	200W continuous (260W peak)
Aux Input	Yes
Bluetooth	No
Country	United States
Dimensions	Subwoofer: 241 x 249 x 259 mm, Satellite: 216 x 107 x 144 mm
Drivers	6.5” side-firing subwoofer, 3” poly cone midbass, 0.75” MicroTractrix horn tweeter
Frequency Response	35Hz - 22kHz (-3dB, Manufacturer specified)
Headphone Output	Yes (3.5mm)
Inputs	3.5mm miniplug, 3.5mm Aux
Maximum SPL	110dB (in-room)
RCA Input	No
USB Input	No
Weight	20.9 lbs (9.5 kg) total system

• Links
  • Official Klipsch ProMedia 2.1 THX Website
• Reviews, Comparisons and Sound Samples
  • Audioholics: Klipsch ProMedia 2.1 Computer Speaker System Review
• Head-to-Head Comparisons
  • Klipsch ProMedia 2.1 THX vs Edifier S350DB
  • Klipsch ProMedia 2.1 THX vs Harman Kardon SoundSticks 4
  • Klipsch ProMedia 2.1 THX vs Klipsch ProMedia Lumina
  • Klipsch ProMedia 2.1 THX vs Logitech Z407

Logitech Z623: $172.89 Amazon eBay

Pros: A high-output 200W RMS / 400W peak THX-certified 2.1 system engineered for room-filling PC gaming, movie watching, and party playback. Features a massive 7-inch front-firing ported subwoofer that delivers physical, chest-thumping low-end impact down to approximately 35Hz. Supports simultaneous multi-device connectivity via RCA and dual 3.5mm inputs, with convenient on-satellite power, volume, and dedicated bass level controls alongside an integrated headphone jack.

Cons: The acoustic tuning prioritizes visceral bass impact and energetic highs over audiophile midrange neutrality, resulting in a somewhat scooped frequency response. Satellites use single full-range drivers without dedicated tweeters. Lacks Bluetooth or digital inputs in this standard configuration.

Full Logitech Z623 review and specifications →

Released	Sep 2010 (16 years ago)
Amplifier Power	200W RMS (130W subwoofer + 2x 35W satellites), 400W peak
Aux Input	Yes
Bluetooth	No
Certification	THX Certified
Country	Switzerland
Dimensions	Subwoofer: 284 x 305 x 266 mm, Satellite: 196 x 117 x 126 mm
Drivers	7” front-firing subwoofer, 2.5” full-range satellite drivers
EQ	Dedicated bass volume dial
Frequency Response	35Hz - 20kHz (Manufacturer specified)
Headphone Output	Yes (3.5mm)
Inputs	RCA, 3.5mm main, 3.5mm auxiliary
RCA Input	Yes
USB Input	No
Warranty	2
Weight	19.8 lbs (8.97 kg) total system

• Reviews, Comparisons and Sound Samples
  • Tom’s Guide: Logitech Z623 Review
• Head-to-Head Comparisons
  • Logitech Z623 vs Klipsch ProMedia Lumina
  • Logitech Z623 vs Logitech Z407
  • Logitech Z623 vs Harman Kardon SoundSticks 4
  • Logitech Z623 vs Creative Pebble Plus