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Logitech Z906 5.1 THX Speaker System review

A complete powered 5.1 system with the amplifier in the subwoofer, THX certification and built-in Dolby Digital and DTS decoding, so no receiver is needed. On October 26, 2026 it had no offer on Amazon.com.

In brief

A complete, certified 5.1 system that needs no receiver, decodes Dolby Digital and DTS and gives real five-speaker surround. It is not sold new on Amazon.com today and has no HDMI; US buyers should look at the Sony or Yamaha systems. Key figures: Active 5.1 · 500 W RMS, 1,000 W peak · THX certified · Dolby Digital and DTS decoding · amplifier in the subwoofer · six inputs · not sold new on Amazon.com. Amazon.com had a product page for it but no seller on October 25, 2026. Our score: 7.2/10, specification-checked.

Not sold new on Amazon.com

On October 26, 2026, the Amazon.com listing for the Z906 (B00804FNO6) had no seller. Amazon itself sells it on the German, French, Italian and Spanish stores.

What it is

A complete powered 5.1 system: four satellites, a center speaker and a subwoofer that holds the amplifier, plus a control console and a remote. It decodes Dolby Digital and DTS itself, takes six sources at once, and carries THX certification. Logitech rates it at 500 W RMS and 1,000 W peak; the satellites are 6.5 in tall and weigh 1.85 lb each.

Why no receiver matters

Most 5.1 speaker packages are passive and need an AV receiver to power and decode them. The Z906 does both, so a TV’s optical output and five speakers are the whole setup.

What it cannot do

It has no HDMI input and no eARC. The TV sends sound by optical or coaxial digital, which limits it to Dolby Digital and DTS 5.1: no Dolby Atmos, no lossless TrueHD, and no automatic volume control from the TV remote.

What to buy in the US instead

Prices read on Amazon.com on October 26, 2026, from our home cinema systems shelf:

Prices quoted in this text were read on October 26, 2026. The live price is at the top of the page.

Buying it in the United States

Amazon.com has a product page for it (ASIN B00804FNO6), but no seller was offering it there on October 25, 2026. The button opens that page so you can see whether stock has returned; if it has not, the models below are sold in the United States.

On this shelf, with an Amazon.com offer on October 25, 2026:

In its favor, and against it

Strengths

  • No receiver needed: amplification and Dolby Digital and DTS decoding are built in
  • THX certification, a defined standard with measured requirements
  • Five physical speakers for real surround, plus a console and remote

Compromises

  • Not sold new on Amazon.com: no offer on October 26, 2026
  • No HDMI: the TV connects by optical or coaxial, so no Dolby Atmos or TrueHD
  • Nothing can be upgraded separately; it is one closed system

Specifications

Configuration5.1: four satellites, a center speaker and a subwoofer
Power500 W RMS, 1,000 W peak (five channels at 67 W RMS plus the subwoofer)
CertificationTHX
DecodingDolby Digital and DTS built in
ReceiverNot needed: the amplifier is in the subwoofer, with a separate control console
InputsSix, for a TV, a disc player, a console, a computer and other sources at once
In the boxFour satellites, center, subwoofer, remote, control console, speaker wire, 6-channel cable, three AAA batteries
Satellite size6.5 × 3.9 × 3.6 in (165 × 99 × 93 mm), 1.85 lb (840 g) each
Amazon referenceB00804FNO6 (US), no offer
EAN5099206023536

What gets asked most

Can I buy it in the US?

Not new on Amazon.com at the moment: on October 26, 2026 the listing had no seller. The closest complete systems on our shelf sold there were the Sony 5.1 soundbar system with real rear speakers at $248.00 and the Yamaha 5.1 receiver-and-speaker package at $499.99.

What does THX certification mean?

That the system passed THX’s tests for output level, frequency response and distortion in a room of a given size. It is a defined standard with measurements behind it, which says more than the 1,000 W peak figure does.

Can it play Dolby Atmos?

No. The Z906 decodes Dolby Digital and DTS 5.1 and has no HDMI input; it takes the TV’s sound over optical or coaxial digital, which cannot carry Atmos or lossless formats.

Our score

7.2/ 10

A complete, certified 5.1 system that needs no receiver, decodes Dolby Digital and DTS and gives real five-speaker surround. It is not sold new on Amazon.com today and has no HDMI; US buyers should look at the Sony or Yamaha systems.

Who should pick this one, among home theater speaker packages

A TV or gaming room that wants real five-speaker surround without a receiver, for someone shopping on a European Amazon store.

Sources

Specifications: the manufacturer sheet and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

The method applied to these home theater speaker packages