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Marshall Acton III vs Logitech Z533

Real specs. Clear sources.Exact models · UK & US buying links

Compared products

YOUR FIRST CHOICE

Marshall Acton III

Black

Marshall Acton III home speaker in black, front view with textured black grille, gold Marshall script and gold control knobs on the top panel
Full product profile Official image
Exact model & source notes

The Acton III is the smallest speaker in Marshall's mains-powered home range: a single bass-reflex cabinet with one woofer on a 30 W Class D amplifier and two tweeters on 15 W Class D amplifiers. It connects over Bluetooth 5.2 or a 3.5 mm input and keeps analogue bass and treble knobs on the top panel.

Specifications checked 26 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications
WHAT DIFFERS
Frequency range45–20,000 Hz55 Hz–20 kHz
Maximum sound pressure level95 dB @ 1 m>97 dBA
2 of 9 verified differences, in the order listed below. Not a rating.
See the 9 verified differences
THE CONTENDER

Logitech Z533

Black

Black Logitech Z533 2.1 system: two small satellites with copper-toned drivers, a fabric-front subwoofer and a round wired control pod
Full product profile Official image
Exact model & source notes

The Z533 is a wired 2.1 system rated at 60 W RMS (120 W peak): a 5.25-inch subwoofer with 30 W and two satellites with 15 W each. It takes RCA and 3.5 mm sources at the back of the subwoofer and a further 3.5 mm source at the control pod, which also holds the volume and bass controls and the headphone jack.

Specifications checked 26 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

Marshall Acton III UK & US retailers

UK
Search Amazon UKSearch eBay UK
US
Search Amazon USSearch eBay US

UK & US price history: no verified listing yet

Logitech Z533 UK & US retailers

UK
Search Amazon UKSearch eBay UK
US
Search Amazon USSearch eBay US

UK & US price history: no verified listing yet

Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.

THE DIFFERENCES, MADE VISIBLE

Visual facts

Differences first. Select a topic for its graphic, sources and conditions.

How to read this comparison
  • Manufacturer facts for the exact models shown. Not a quality rating or a test result.
  • “Different” means the known values differ, not that one is better.
  • Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.
SPECIFICATIONS SIDE BY SIDE7 topics
SELECTED TOPIC
01 / 07

Enclosure

Check the exact configuration and source conditions for your use.

Logitech Z533Subwoofer: front-facing, fabric-lined

Manufacturer specification

Source 1Source 2
Explore the full specifications

Check the exact configuration. Manufacturer specifications describe the listed variant. Confirm compatibility and the seller’s exact model before buying; no overall winner is inferred from incomplete evidence.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

9 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.

Enclosure

In Visual facts
Marshall Acton IIIBass-reflex
Logitech Z533Subwoofer: front-facing, fabric-lined
Sources

Check the exact configuration and source conditions for your use.

Channel configuration

In Visual facts
Marshall Acton IIISingle mains-powered Bluetooth home speaker with stereo output (one woofer and two tweeters in one cabinet)
Logitech Z5332.1: two satellite speakers and a subwoofer, with a wired control pod
Sources
Marshall Acton III

Manufacturer specification · Marshall lists the unit as stereo with separate amplifiers for one woofer and two tweeters. Marshall's FAQ states the speaker is stand-alone and cannot be used in pairs or multiple groups.

Marshall Acton III Black (UK) — product page and specificationsMarshall Acton III Black (US) — product page and specifications

Check the exact configuration and source conditions for your use.

Frequency range

In Visual facts
Marshall Acton III45–20,000 Hz
Logitech Z53355 Hz–20 kHz
Sources
Logitech Z533

Manufacturer specification · Manufacturer range; tolerance (dB) not published.

Logitech Support — Z533 technical specifications

Check the exact configuration and source conditions for your use.

Included units / accessories

In Visual facts
Marshall Acton IIIActon III speaker, mains lead, user manual and legal and safety information
Logitech Z533Two satellite speakers, subwoofer, 3.5 mm audio cable and user documentation; the wired control pod is part of the system
Sources

Check the exact configuration and source conditions for your use.

Audio inputs

In Visual facts
Marshall Acton IIIBluetooth 5.2 (LE Audio-ready) and 3.5 mm wired input
Logitech Z533One 3.5 mm input and one RCA input on the back of the subwoofer, plus a 3.5 mm input on the control pod
Sources
Marshall Acton III

Manufacturer specification · No Wi-Fi, microphone or voice control. Codecs are not published on the product page.

Marshall Acton III Black (UK) — product page and specificationsMarshall Acton III Black (US) — product page and specifications
Logitech Z533

Manufacturer specification · Analogue only: no Bluetooth, USB or optical input. The setup guide says two devices can be connected at the same time through the RCA and 3.5 mm inputs on the back of the subwoofer, switching by pausing one device and playing from the other. The provided 3.5 mm cable fits either the rear jack or the control-pod jack. RCA cable not included. Input impedance 8 kΩ (support '8k Ohm'). The shop's '(up to 1080p)' note next to the 3.5 mm count is a page error and is not recorded.

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Z533 — US product page and technical specifications (en-us)Logitech Support — Z533 technical specificationsLogitech Z533 — setup guide (PDF, Americas edition: English/French/Spanish/Portuguese)

Check the exact configuration and source conditions for your use.

Maximum sound pressure level

In Visual facts
Marshall Acton III95 dB @ 1 m
Logitech Z533>97 dBA
Sources
Logitech Z533

Manufacturer specification · Logitech support specification, 'Sound Pressure Level (SPL Max)'; measurement distance and signal are not stated.

Logitech Support — Z533 technical specifications

Check the exact configuration and source conditions for your use.

Show 3 more verified differences

Rated power and measurement basis

In Visual facts
Marshall Acton IIIOne 30 W Class D amplifier for the woofer and two 15 W Class D amplifiers for the tweeters
Logitech Z53360 W RMS total (120 W peak): subwoofer 30 W + satellites 2 × 15 W
Sources
Marshall Acton III

Manufacturer specification · Marshall does not state an RMS/peak basis or load. Maximum SPL is listed separately as 95 dB at 1 m.

Marshall Acton III Black (UK) — product page and specificationsMarshall Acton III Black (US) — product page and specifications
Logitech Z533

Manufacturer specification · Manufacturer RMS/peak ratings; the per-component split is given for RMS only; load and distortion basis not published.

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Z533 — US product page and technical specifications (en-us)Logitech Support — Z533 technical specifications

Check the exact configuration and source conditions for your use.

Power supply

Marshall Acton IIIMains powered with supplied mains lead; mains input 100–240 V, 50–60 Hz
Logitech Z533Mains AC via the power plug (2 m power cable); Logitech lists the power adapter as 100–240 V, 50/60 Hz
Sources
Marshall Acton III

Manufacturer specification · No battery. UK and US are separate regional products (UK product ID 1006006, EAN 7340055385008; US product ID 1006008, EAN 7340055385060); the plug type of each region's mains lead is not stated on the pages.

Marshall Acton III Black (UK) — product page and specificationsMarshall Acton III Black (US) — product page and specifications
Logitech Z533

Manufacturer specification · Whether the supply is internal or an in-line adapter, consumption and regional plug type are not published. UK (980-001055, named 'Black-UK') and US (980-001053) are separate part numbers.

Logitech Support — Z533 technical specificationsLogitech Z533 — setup guide (PDF, Americas edition: English/French/Spanish/Portuguese)

Check the exact configuration and source conditions for your use.

Dimensions of each unit

Marshall Acton III170 × 150 × 260 mm (W × H × D)
Logitech Z533Each satellite: 170 × 100 × 85 mm; subwoofer: 265 × 255 × 195 mm; control pod: 55 × 72 × 72 mm (H × W × D)
Sources
Marshall Acton III

Manufacturer specification · As published by Marshall (width, height, depth).

Marshall Acton III Black (UK) — product page and specificationsMarshall Acton III Black (US) — product page and specifications
Logitech Z533

Manufacturer specification · The UK/US shop pages omit the unit on the subwoofer width; 255 mm is from the support specification table.

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Support — Z533 technical specifications

A size or weight trade-off; it does not establish the better product.

Missing or non-comparable evidence (14)

Controls

Marshall Acton IIINot verified
Logitech Z533Power/volume knob and bass control on the wired control pod
Sources
Marshall Acton III

No source recorded for this side.

Logitech Z533

Manufacturer specification · The volume knob also switches the system on and off; bass is adjusted with a slider on the side of the pod. Headphone volume can be adjusted from the control pod or the audio source. Control pod weight 200 g (shop and support).

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Support — Z533 technical specificationsLogitech Z533 — setup guide (PDF, Americas edition: English/French/Spanish/Portuguese)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Satellite driver size

Marshall Acton IIINot verified
Logitech Z53366 mm (2.6 in) per satellite
Sources
Marshall Acton III

No source recorded for this side.

Logitech Z533

Manufacturer specification

Logitech Support — Z533 technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Input sensitivity

Marshall Acton IIINot verified
Logitech Z533Satellite 450 mV; subwoofer 200 mV
Sources
Marshall Acton III

No source recorded for this side.

Logitech Z533

Manufacturer specification · As published in the support table ('Satellite 450mV, Subwoffer 200mV'); input impedance 8 kΩ.

Logitech Support — Z533 technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Signal-to-noise ratio

Marshall Acton IIINot verified
Logitech Z533Subwoofer 80 dB, A-weighted; satellites 80 dB, A-weighted
Sources
Marshall Acton III

No source recorded for this side.

Logitech Z533

Manufacturer specification

Logitech Support — Z533 technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Warranty

Marshall Acton IIINot verified
Logitech Z533UK: 2-Year Limited Hardware Warranty; US: 1-Year Limited Hardware Warranty
Sources
Marshall Acton III

No source recorded for this side.

Logitech Z533

Manufacturer specification · As stated in the specifications of the UK (en-gb) and US (en-us) Logitech shop pages; the regional terms differ.

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Z533 — US product page and technical specifications (en-us)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Satellite weight

Marshall Acton IIINot verified
Logitech Z5330.525 kg
Sources
Marshall Acton III

No source recorded for this side.

Logitech Z533

Manufacturer specification · 525 g listed under the component 'Satellite' (with the per-satellite 170 × 100 × 85 mm) in the UK/US shop dimensions and the support table.

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Z533 — US product page and technical specifications (en-us)Logitech Support — Z533 technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Woofer size

Marshall Acton IIINot verified
Logitech Z5335.25 in
Sources
Marshall Acton III

No source recorded for this side.

Logitech Z533

Manufacturer specification · Subwoofer driver (133 mm).

Logitech Support — Z533 technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Weight

Marshall Acton III2.85 kg
Logitech Z533Not verified
Sources
Logitech Z533

No total system weight is published; Logitech lists the satellite (525 g), subwoofer (4 kg) and control pod (200 g) separately. No figure is summed. · Manufacturer specification

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Support — Z533 technical specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

0 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

Marshall Acton III

What it brings

What to check

Logitech Z533

What it brings

What to check

COMPARE THE DETAILS

Full specifications

How we verify
23 of 23 specifications Sources in each row
Source-backed specifications for Marshall Acton III and Logitech Z533
SpecificationMarshall Acton IIILogitech Z533
Channel configurationDifferent
Sources
Marshall Acton III

Manufacturer specification · Marshall lists the unit as stereo with separate amplifiers for one woofer and two tweeters. Marshall's FAQ states the speaker is stand-alone and cannot be used in pairs or multiple groups.

Marshall Acton III Black (UK) — product page and specificationsMarshall Acton III Black (US) — product page and specifications
Single mains-powered Bluetooth home speaker with stereo output (one woofer and two tweeters in one cabinet)2.1: two satellite speakers and a subwoofer, with a wired control pod
Woofer size
Sources
Marshall Acton III

No source recorded.

Logitech Z533

Manufacturer specification · Subwoofer driver (133 mm).

Logitech Support — Z533 technical specifications
Not provided5.25 in
Satellite driver size
Sources
Marshall Acton III

No source recorded.

Logitech Z533

Manufacturer specification

Logitech Support — Z533 technical specifications
Not provided66 mm (2.6 in) per satellite
Frequency rangeDifferent
Sources
Logitech Z533

Manufacturer specification · Manufacturer range; tolerance (dB) not published.

Logitech Support — Z533 technical specifications
45–20,000 Hz55 Hz–20 kHz
Maximum sound pressure levelDifferent
Sources
Logitech Z533

Manufacturer specification · Logitech support specification, 'Sound Pressure Level (SPL Max)'; measurement distance and signal are not stated.

Logitech Support — Z533 technical specifications
95 dB @ 1 m>97 dBA
Signal-to-noise ratio
Sources
Marshall Acton III

No source recorded.

Logitech Z533

Manufacturer specification

Logitech Support — Z533 technical specifications
Not providedSubwoofer 80 dB, A-weighted; satellites 80 dB, A-weighted
Audio inputsDifferent
Sources
Marshall Acton III

Manufacturer specification · No Wi-Fi, microphone or voice control. Codecs are not published on the product page.

Marshall Acton III Black (UK) — product page and specificationsMarshall Acton III Black (US) — product page and specifications
Logitech Z533

Manufacturer specification · Analogue only: no Bluetooth, USB or optical input. The setup guide says two devices can be connected at the same time through the RCA and 3.5 mm inputs on the back of the subwoofer, switching by pausing one device and playing from the other. The provided 3.5 mm cable fits either the rear jack or the control-pod jack. RCA cable not included. Input impedance 8 kΩ (support '8k Ohm'). The shop's '(up to 1080p)' note next to the 3.5 mm count is a page error and is not recorded.

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Z533 — US product page and technical specifications (en-us)Logitech Support — Z533 technical specificationsLogitech Z533 — setup guide (PDF, Americas edition: English/French/Spanish/Portuguese)
Bluetooth 5.2 (LE Audio-ready) and 3.5 mm wired inputOne 3.5 mm input and one RCA input on the back of the subwoofer, plus a 3.5 mm input on the control pod
Bluetooth version
Sources
Logitech Z533

No source recorded.

5.2Not provided
Bluetooth range
Sources
Marshall Acton III

Manufacturer specification · Manufacturer figure; test conditions not stated.

Marshall Acton III Black (UK) — product page and specificationsMarshall Acton III Black (US) — product page and specifications
Logitech Z533

No source recorded.

10 m / 30 ftNot provided
Headphone output
Sources
Marshall Acton III

No source recorded.

Not providedHeadphone jack on the control pod
Input sensitivity
Sources
Marshall Acton III

No source recorded.

Logitech Z533

Manufacturer specification · As published in the support table ('Satellite 450mV, Subwoffer 200mV'); input impedance 8 kΩ.

Logitech Support — Z533 technical specifications
Not providedSatellite 450 mV; subwoofer 200 mV
Rated power and measurement basisDifferent
Sources
Marshall Acton III

Manufacturer specification · Marshall does not state an RMS/peak basis or load. Maximum SPL is listed separately as 95 dB at 1 m.

Marshall Acton III Black (UK) — product page and specificationsMarshall Acton III Black (US) — product page and specifications
Logitech Z533

Manufacturer specification · Manufacturer RMS/peak ratings; the per-component split is given for RMS only; load and distortion basis not published.

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Z533 — US product page and technical specifications (en-us)Logitech Support — Z533 technical specifications
One 30 W Class D amplifier for the woofer and two 15 W Class D amplifiers for the tweeters60 W RMS total (120 W peak): subwoofer 30 W + satellites 2 × 15 W
Power supplyDifferent
Sources
Marshall Acton III

Manufacturer specification · No battery. UK and US are separate regional products (UK product ID 1006006, EAN 7340055385008; US product ID 1006008, EAN 7340055385060); the plug type of each region's mains lead is not stated on the pages.

Marshall Acton III Black (UK) — product page and specificationsMarshall Acton III Black (US) — product page and specifications
Logitech Z533

Manufacturer specification · Whether the supply is internal or an in-line adapter, consumption and regional plug type are not published. UK (980-001055, named 'Black-UK') and US (980-001053) are separate part numbers.

Logitech Support — Z533 technical specificationsLogitech Z533 — setup guide (PDF, Americas edition: English/French/Spanish/Portuguese)
Mains powered with supplied mains lead; mains input 100–240 V, 50–60 HzMains AC via the power plug (2 m power cable); Logitech lists the power adapter as 100–240 V, 50/60 Hz
Tone controls
Sources
Logitech Z533

No source recorded.

Analogue bass and treble knobs on the top panel; also adjustable in the appNot provided
App
Sources
Logitech Z533

No source recorded.

Marshall Bluetooth app (iOS & Android), with OTA software updatesNot provided
Controls
Sources
Marshall Acton III

No source recorded.

Logitech Z533

Manufacturer specification · The volume knob also switches the system on and off; bass is adjusted with a slider on the side of the pod. Headphone volume can be adjusted from the control pod or the audio source. Control pod weight 200 g (shop and support).

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Support — Z533 technical specificationsLogitech Z533 — setup guide (PDF, Americas edition: English/French/Spanish/Portuguese)
Not providedPower/volume knob and bass control on the wired control pod
Dimensions of each unitDifferent
Sources
Marshall Acton III

Manufacturer specification · As published by Marshall (width, height, depth).

Marshall Acton III Black (UK) — product page and specificationsMarshall Acton III Black (US) — product page and specifications
Logitech Z533

Manufacturer specification · The UK/US shop pages omit the unit on the subwoofer width; 255 mm is from the support specification table.

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Support — Z533 technical specifications
170 × 150 × 260 mm (W × H × D)Each satellite: 170 × 100 × 85 mm; subwoofer: 265 × 255 × 195 mm; control pod: 55 × 72 × 72 mm (H × W × D)
Weight
Sources
Logitech Z533

No total system weight is published; Logitech lists the satellite (525 g), subwoofer (4 kg) and control pod (200 g) separately. No figure is summed. · Manufacturer specification

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Support — Z533 technical specifications
2.85 kgNot listed by the manufacturer
EnclosureDifferent
Sources
Bass-reflexSubwoofer: front-facing, fabric-lined
Satellite weight
Sources
Marshall Acton III

No source recorded.

Logitech Z533

Manufacturer specification · 525 g listed under the component 'Satellite' (with the per-satellite 170 × 100 × 85 mm) in the UK/US shop dimensions and the support table.

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Z533 — US product page and technical specifications (en-us)Logitech Support — Z533 technical specifications
Not provided0.525 kg
Subwoofer weight
Sources
Marshall Acton III

No source recorded.

Not provided4 kg
Included units / accessoriesDifferent
Sources
Acton III speaker, mains lead, user manual and legal and safety informationTwo satellite speakers, subwoofer, 3.5 mm audio cable and user documentation; the wired control pod is part of the system
Warranty
Sources
Marshall Acton III

No source recorded.

Logitech Z533

Manufacturer specification · As stated in the specifications of the UK (en-gb) and US (en-us) Logitech shop pages; the regional terms differ.

Logitech Z533 — UK product page and technical specifications (en-gb)Logitech Z533 — US product page and technical specifications (en-us)
Not providedUK: 2-Year Limited Hardware Warranty; US: 1-Year Limited Hardware Warranty
First product manufacturer sourceSecond product manufacturer source
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Channel configuration
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Rated power and measurement basis
5 W RMS total; 10 W peak total
Audio inputs
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Channel configuration
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Rated power and measurement basis
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Audio inputs
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Prices & product profile
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Channel configuration
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Rated power and measurement basis
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Audio inputs
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Channel configuration
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Rated power and measurement basis
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Audio inputs
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Prices & product profile

Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.