has this been certified and tested?

Not sure what you mean by certified and tested but... I own it, it's a ton of bang for your buck. I'm completely satified with my purchase. I use it for gaming.

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Logitech Recertified 980-000319 Z523 40 Watts RMS 2.1 Speaker System

REFURBISHED

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Room-Filling Logitech 360-degree sound for an immersive music, movie and game experience
Down-firing subwoofer with 6.50" pressure driver delivers ultra-deep bass without distortion
Quick-connect inputs let you easily plug in your DVD player, game console, iPod and headphones
40 Watts (RMS) of power for big, rich, detailed sound. Convenient on-speaker controls put volume adjustment at your fingertips
35 Hz - 20 KHz
Certified Refurbished: Professionally restored to factory specifications by the manufacturer or manufacturer-approved vendor (Certified to look & work like new with limited or no signs of wear) - A pre-owned item that may not be in original packaging

Overview

Specs

Reviews (7)

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Model
Brand	Logitech
Model	Z523
Part Number	980-000319

Details
Type	Wired
Color	Black
Configuration	2.1
Total Power	40 Watts RMS
Satellite RMS Power /ea	9.5 Watts
Subwoofer RMS Power	21 Watts
Driver	Satellites: 2-inch dome drivers Subwoofer: 5.25-inch down-firing subwoofer with 5.5-inch pressure driver
Frequency Response	35Hz - 20KHz
System Requirements	Windows-based experience Windows XP, Windows Vista or Windows 7. Sound card or 3.5 mm audio out Mac computer Mac OS X 10.3.9 or later Sound card or 3.5 mm audio out

Dimensions & Weight
Dimension	Satellites: 11.60" x 3.40" x 5.20" Subwoofer: 10.00" x 9.00" x 9.50"

Features
Features	360-degree sound The speakers project sound evenly in all directions, so you enjoy rich, clear sound from any angle throughout the room. Down-firing subwoofer A subwoofer with a 6.5-inch pressure driver delivers deep lows for rich bass you can feel. Two auxiliary inputs An RCA jack and a 3.5 mm auxiliary input let you easily connect your Logitech SqueezeboxTM network music player, gaming console, DVD player, or iPod. 40 watts (RMS) of power You've got enough power to fill the room with bold, dynamic sound. Convenient on-speaker controls You've got power, volume, and a headphone jack for private listening right at your fingertips.

Additional Information
First Listed on Newegg	July 15, 2013

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Limited Warranty period (parts): 90 days
Limited Warranty period (labor): 90 days
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Return Policies

Return for refund within: 30 days
Return for replacement within: 30 days
This item is covered by Newegg.com's 30-Day Return Policy.
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Logitech Recertified 980-000319 Z523 40 Watts RMS 2.1 Speaker System

Refurbished

Learn more about the Logitech Z523

Customer Reviews of the Logitech Z523

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: N82E16836121063

Logitech Recertified 980-000319 Z523 40 Watts RMS 2.1 Speaker System

Refurbished

Learn more about the Logitech Z523

Customer Reviews of the Logitech Z523

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info