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Logitech > 
Item#: 9SIA0AJ2E87311

Logitech Z523 40 Watts RMS 2.1 Speaker System

  • 35Hz - 20KHz
  • 40 Watts RMS
  • Down-firing subwoofer
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Learn more about the Logitech Z523



General SPEC

Total Power
40 Watts RMS
Satellite RMS Power /ea
9.5 watts (RMS) (into 4 ohms, @1kHz, @10% THD)
Subwoofer RMS Power
21 watts (RMS) (into 6 ohms, @100Hz, @10% THD)
Satellites: 2-inch dome drivers
Subwoofer: 5.25-inch down-firing subwoofer with 5.5-inch pressure driver
Frequency Response
35Hz - 20KHz
Satellites: 11.6 inches x 3.4 inches x 5.2 inches (19.5 cm x 8.6 cm x 13.3 cm)
Subwoofer: 10 inches x 9 inches x 9.5 inches (25.6 cm x 23. cm x 24 cm)


Inputs: Stereo RCA, 3.5 mm primary input, 3.5 mm auxiliary input

Outputs: 3.5 mm headphone jack

360-degree sound

Down-firing subwoofer

Convenient on-speaker controls

Quick Info


  • Limited Warranty period (parts): 90 days
  • Limited Warranty period (labor): 90 days

Customer Reviews of the Logitech Z523

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  • Anonymous
  • 12/30/2014 10:36:22 AM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day

1 out of 5 eggsWaste of Time

Pros: Pros? I couldn't say. Looked nice. If only it worked.

Cons: This item was "refurbished"??? It had a loud buzz. Music was badly distorted and the left speaker didn't play at all.

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  • Jean L.
  • 12/18/2014 7:50:37 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsDOA

Pros: Cheaper than new

Cons: DOA

Other Thoughts: Now I must pay twenty bucks to ship it to CA if I want it replaced. Not worth it for what I paid. Cutting my losses now. I don't think it's fair I need to pay for return shipping when I received a defective product.

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  • Willy L.
  • 9/3/2013 10:17:13 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsgood speaker at refub price

Pros: Good bass
decent sound
small size

Cons: a little bit of the noise when no music, regular price is a bit high.

Other Thoughts: I got this of a refub unit, it came in a brown box with no other box in it, opened up the box the speaker is right in there with no other protections, I feel a bit non-safe for packaging. there is no white box or any other box packaging the subwoofer.

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  • 8/25/2013 10:09:51 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat refurb

Pros: * zero problems with the system. works exactly as it should. packaging was old and beat up a bit, but product itself looks new. there was plastic film on the speaker facades so they are glossy and had no scratches.
* more powerful than i can test, volume wise. i live in an apartment and can't put the knobs past the halfway mark without stuff around my desk rattling and the floor vibrating.
* bargain refurb price!

Cons: temptation to blast my music loud enough to get complaints..?

Other Thoughts: it's not a 5.1 system or better, so if you want true realism for theater/gaming, this would be a compromise. i personally chose this because i have a 5.1 system set up at my dad's and reconnecting the cables after a move is always a pain in the backside.. i just wanted solid, loud sound with a good sub and minimal cables in case i need to move. this is it!

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  • Jacob O.
  • 8/25/2013 9:05:05 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsMediocre for the price.

Pros: It was refurbished, which led to a big price cut. Crisp Mid/highs. Bass knob on tower speakers instead of being out of the way on the sub itself. Mellow yellow LED power light instead of a blinding obnoxious one.

Cons: It was more expensive than my old Logitec Z340 I was replacing, and doesn't sound as good in my opinion. Also the side mounted 3.5 mm jacks are not good for those with cabinet enclosures. Also there is some subwoofer feedback, a slight hum when nothing is being played through it, and no it is not my device. It even does it when unplugged.

Other Thoughts: People raved that the sub was awesome but i find it mediocre and that it bottoms out too easily. Not worth being a con, just a thought.

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Home > 
Computer Hardware > 
Headsets, Speakers, & Soundcards > 
Speakers > 
Logitech > 
Item#: 9SIA0AJ2E87311
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