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Marshall Stanmore IV

MarshallHome wireless speaker

Stanmore IV

Released July 2026.4Maker product pagemarshall.com/us/en/support/speakers/support-for-stanmore-ivRead 14 October 2026Maker support page: released in 2026. The month follows the launch release and first coverage. Last checked 21 October 2026.

Rated audio power
Not available
Playback time (claimed)
Not available
Dust and water rating
Not available
Weight
3,990g

42 of 96 fields known.

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At a glance

Ports

  • 3.5 mm audio
  • RCA
  • AC power

All specs

SourceCalculated

General

Series
Not available
Model numbers
1009791, 1009793, 1009296, 1009298, 1009853, 10098541Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Colour selector product ids 1009791 Black and 1009793 Cream, read from the page data. The German store lists 1009296 Black, 1009298 Cream, and also 1009853 Black and 1009854 Cream. John Lewis sells 1009853. Which ids differ by plug or region is not stated.2Maker product pagemarshall.com/de/de/product/stanmore-ivRead 14 October 2026German store page data lists variants STANMORE IV BLACK 1009296 and 1009853, STANMORE IV CREAM 1009298 and 1009854, all priced at EUR 399.11Retailer pagejohnlewis.com/marshall-stanmore-iv-bluetooth-speaker/black/p115377417Read 14 October 2026UK retailer lists manufacturer part number 1009853 for the Black model.
GTIN / EAN
7340055423571, 73400554236181Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026EAN in the US page data: 1009791 is 7340055423571 and 1009793 is 7340055423618. EANs of the other ids were not found.
Announced
7 July 20265Press releasegroup.marshall.com/2026/07/07/marshall-unveils-next-generation-acton-iv-and-stanmore-iv-speakers-for-the-homeRead 14 October 2026Launch release dated 7 July 2026.6Press articlesoundguys.com/marshall-acton-iv-and-stanmore-iv-launch-159646Read 14 October 2026Published 2026-07-07, 8:00 AM ET.
Status
Available1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Listed on the maker store. The US store showed Sold Out with a Notify Me button on 2026-10-14. The German store and John Lewis take orders.2Maker product pagemarshall.com/de/de/product/stanmore-ivRead 14 October 2026Orderable on the German store.
Predecessor
Not available
Successor
Not available
Launch price (US)
$399.996Press articlesoundguys.com/marshall-acton-iv-and-stanmore-iv-launch-159646Read 14 October 2026Launch article of 2026-07-07: Stanmore IV USD 399.99. TechRadar gives USD 399.99 and Tom's Guide USD 399. The US store later shows USD 429.99 and MusicTech reports that figure, so the store price changed or one outlet differs. The launch price is stored. Tax is not included in US list prices.8Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-stanmore-iv-reviewRead 14 October 2026Price and release date: USD 399.99 / GBP 349.99 / AU$679, first released July 2026.
Launch price (EU)
€3997Press articlehifi.blog/marshall-acton-iv-and-stanmore-iv-more-room-more-bass-more-marshallRead 14 October 2026Article of 2026-07-08 lists Stanmore IV at EUR 399. Stereonet of 2026-07-09 also gives EUR 399. The German maker store shows EUR 399 including VAT.
Markets
US, DE, FR, GB1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026US store page with USD price.2Maker product pagemarshall.com/de/de/product/stanmore-ivRead 14 October 2026German store sells it and shows an add to cart button.11Retailer pagejohnlewis.com/marshall-stanmore-iv-bluetooth-speaker/black/p115377417Read 14 October 2026Sold in the UK at GBP 349.99.12Retailer pageldlc.com/en/product/PB00747537.htmlRead 14 October 2026Sold in France at EUR 399.95 for Black.
Colours
Black, Cream1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Colorways: Black, Cream.
Speaker type
Home1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Page: Bluetooth home speaker.

Audio

Audio channels
Stereo1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Stereo/mono: Stereo. Sound channels of one speaker.
Audio drivers
Driver typeCountDiameter (mm)
Woofer1127
Tweeter219.05
Source1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026One 5 inch woofer and two 0.75 inch tweeters with waveguides. Converted exactly to 127 mm and 19.05 mm. The page lists amplifier ratings only, so no per-driver power is stored. Bass-reflex cabinet, so no passive radiator.
Passive radiators
Not available
Rated audio power
Not available
Rated audio power on mains
Not available
Audio output power (unspecified rating)
110W9Reviewheadphonecheck.com/test/marshall-stanmore-ivRead 14 October 2026Review: three Class D amplifiers, 60 W for the woofer and 2 x 25 W for the tweeters, 110 W in total. The maker lists only the amplifier ratings, with no continuous, RMS or peak basis, so the total goes in the unspecified-rating field. The review also prints 2.99 kg for the weight, which conflicts with the maker's 3.99 kg and is not used.
Peak audio power
Not available
Frequency response lower limit (claimed)
36Hz1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Frequency range 36-38,000 Hz. Tolerance and mode are not stated. HeadphoneCheck prints 37 Hz, which is not used.
Frequency response upper limit (claimed)
38kHz1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Frequency range 36-38,000 Hz. Tolerance and mode are not stated.
Signal-to-noise ratio (claimed)
Not available
Adjustable equalizer
Yes8Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-stanmore-iv-reviewRead 14 October 2026The Marshall app saves three EQ calibrations using a five-band equalizer. The M button cycles them.9Reviewheadphonecheck.com/test/marshall-stanmore-ivRead 14 October 2026App: five presets plus a 5-band EQ with three memory slots.
Equalizer bands
58Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-stanmore-iv-reviewRead 14 October 2026Five-band equalizer in the Marshall app.9Reviewheadphonecheck.com/test/marshall-stanmore-ivRead 14 October 20265-band EQ.
Automatic sound adjustment
Yes8Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-stanmore-iv-reviewRead 14 October 2026The app has placement compensation, which optimizes the audio output for the speaker's position. The maker page calls it room calibration. Dynamic Loudness is a separate loudness balance feature.
Sound modes
Not available
Wireless stereo pairing
Not available
Speaker link protocols
Auracast1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Multi-speaker connectivity through Auracast broadcasts. Marshall Heddon, sold separately, is the broadcaster for older Marshall speakers and for Stanmore IV.10Reviewtomsguide.com/audio/smart-speakers/marshall-stanmore-iv-reviewRead 14 October 2026Auracast-enabled and connects to its Homeline IV sibling. Multi-speaker connectivity is listed as unlimited with the Heddon hub. No numeric maximum is stored.
Max linked speakers
Not available
Max Bluetooth group speakers
Not available

Connectivity

Bluetooth audio playback
Yes1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026
Bluetooth version
5.31Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Wireless connectivity: Bluetooth 5.3.
Bluetooth codecs
SBC, AAC, LDAC, LC31Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Codecs: SBC, AAC (MPEG-2), LDAC, LC3. Receive codecs.
Bluetooth profiles
Not available
Bluetooth LE Audio
Yes3Owner's manualassets.ctfassets.net/javen7msabdh/1Rv35yGbbxUe5eqN41fCsx/9c63350f5423c02844068a220dca6e81/Marshall_Stanmore_IV_OLM_260414_R1_2.pdfRead 14 October 2026The factory reset steps name a second Bluetooth entry, STANMORE IV [LE], which is the LE Audio device. HeadphoneCheck and Notebookcheck also state LE Audio support.9Reviewheadphonecheck.com/test/marshall-stanmore-ivRead 14 October 2026Review: Bluetooth 5.3 with LE Audio and Auracast support.
Auracast
Yes1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Wireless connectivity lists Auracast. FAQ: Stanmore IV is an Auracast receiver and joins a broadcast from a Marshall broadcaster such as Heddon, or from phones with the Listen to Broadcast feature in the Marshall app. It does not state a broadcaster role.4Maker product pagemarshall.com/us/en/support/speakers/support-for-stanmore-ivRead 14 October 2026Stanmore IV is an Auracast receiver and can be added to a multi-speaker setup using a Marshall broadcaster such as Heddon.
Multipoint
Yes1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Bluetooth Multipoint Connectivity: Yes.
Multipoint source devices
23Owner's manualassets.ctfassets.net/javen7msabdh/1Rv35yGbbxUe5eqN41fCsx/9c63350f5423c02844068a220dca6e81/Marshall_Stanmore_IV_OLM_260414_R1_2.pdfRead 14 October 2026Pairing with a Bluetooth device: can connect to 2 Bluetooth devices at a time and remembers up to 8 previously paired devices.
Bluetooth range (claimed)
10m1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Bluetooth range 10 m / 32.8 ft.
Wi-Fi
No8Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-stanmore-iv-reviewRead 14 October 2026Review states the speaker has no Wi-Fi connectivity.10Reviewtomsguide.com/audio/smart-speakers/marshall-stanmore-iv-reviewRead 14 October 2026Review: Stanmore IV has no Wi-Fi streaming and no voice assistant support.12Retailer pageldlc.com/en/product/PB00747537.htmlRead 14 October 2026Retailer spec: Wi-Fi No. It also lists width 350, height 188 and depth 203 mm, which conflicts with the maker's 350 x 203 x 185 mm and is not used.
Wi-Fi standards
Not available
Network audio protocols
Not available
USB audio input
Not available
USB drive playback
Not available
USB audio file formats
Not available
Ports
ConnectorCountRole
3.5 mm audio1AUX audio input on the top panel
RCA1Stereo RCA audio input pair on the bottom panel, preamp required for turntables
AC power1Mains power input, 100 to 240 V
Source1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Wired connectivity AUX 3.5 mm and RCA. Mains input voltage 100-240 V. Port positions and roles are from the manual.3Owner's manualassets.ctfassets.net/javen7msabdh/1Rv35yGbbxUe5eqN41fCsx/9c63350f5423c02844068a220dca6e81/Marshall_Stanmore_IV_OLM_260414_R1_2.pdfRead 14 October 2026Top panel AUX 3.5 mm audio input. Bottom panel stereo RCA inputs, with an RIAA preamp for turntables, and the mains power input.

Controls and software

Speakerphone
No1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Microphone system: No.
Voice assistants
Not available
Controls
Bass knob, Treble knob, Volume knob, Power switch, Media jog for play, pause and track change over Bluetooth, Customisable M-button, Source button1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Top panel controls: bass, treble, volume, power switch, media jog, M-button, source button.3Owner's manualassets.ctfassets.net/javen7msabdh/1Rv35yGbbxUe5eqN41fCsx/9c63350f5423c02844068a220dca6e81/Marshall_Stanmore_IV_OLM_260414_R1_2.pdfRead 14 October 2026Top panel: AUX input, source selector, audio controls for volume, bass and treble, M-button, media control, power switch. Pull the power switch to turn on.
Companion app
Marshall1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Compatible apps: Marshall app.
App platforms
iOS, Android3Owner's manualassets.ctfassets.net/javen7msabdh/1Rv35yGbbxUe5eqN41fCsx/9c63350f5423c02844068a220dca6e81/Marshall_Stanmore_IV_OLM_260414_R1_2.pdfRead 14 October 2026Closing page offers the Marshall app on Google Play and the App Store.
User firmware updates
Yes3Owner's manualassets.ctfassets.net/javen7msabdh/1Rv35yGbbxUe5eqN41fCsx/9c63350f5423c02844068a220dca6e81/Marshall_Stanmore_IV_OLM_260414_R1_2.pdfRead 14 October 2026Troubleshooting: connect to the Marshall app and follow the in-app instructions to get the latest firmware.4Maker product pagemarshall.com/us/en/support/speakers/support-for-stanmore-ivRead 14 October 2026Ensure the firmware is up to date by connecting the product to the Marshall app.
Built-in lighting
Not available
Lighting modes
Not available

Smart home

We could not find any of these 3 fields. Show them
Matter controller
Not available
Thread border router
Not available
Zigbee hub
Not available

Battery and charging

Built-in battery
No8Reviewtechradar.com/audio/wireless-bluetooth-speakers/marshall-stanmore-iv-reviewRead 14 October 2026Designed for the home and powered from the mains. No battery is mentioned.10Reviewtomsguide.com/audio/smart-speakers/marshall-stanmore-iv-reviewRead 14 October 2026Spec table: Battery life: Mains-powered.
Playback time (claimed)
Not available
Playback with battery extension (claimed)
Not available
Battery energy
Not available
Battery capacity
Not available
Nominal battery voltage
Not available
Battery chemistry
Not available
User-replaceable battery
Not available
Full charge time
Not available
Quick charge duration
Not available
Playback after quick charge
Not available
Charging input rating
Not available
Max charging input
Not available
USB Power Delivery charging
Not available
Charges other devices
Not available
Max power-bank output
Not available
Wireless charging
Not available

Durability

We could not find any of these 5 fields. Show them
Dust and water rating
Not available
Floats
Not available
Drop resistance
Not available
Drop test height
Not available
Carry features
Not available

Measured

We could not find any of these 6 fields. Show them
Playback time (measured)
Not available
Max sound pressure (measured)
Not available
Low-frequency extension (measured)
Not available
High-frequency extension (measured)
Not available
Audio latency (measured)
Not available
Full charge time (measured)
Not available

Dimensions and weight

Front and side, drawn to scale.

Dimensions
Width350Height203Depth185mm(13.8 × 8 × 7.3 in)1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Physical unit: width 350 mm, height 203 mm, depth 185 mm. The product details block prints 350 x 203 x 185 mm.
Weight
3,990g(8.8 lb)1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Weight 3.99 kg / 8.79 lb.10Reviewtomsguide.com/audio/smart-speakers/marshall-stanmore-iv-reviewRead 14 October 2026Spec table: 8.81 lbs, which matches 3.99 kg.
Body materials
MDF cabinet, PU leather covering1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026MDF cabinet made from FSC 100%-certified material. The covering is leather-like material, named PU leather in the maker's launch release.5Press releasegroup.marshall.com/2026/07/07/marshall-unveils-next-generation-acton-iv-and-stanmore-iv-speakers-for-the-homeRead 14 October 2026Release names signature PU leather wrapping and an MDF cabinet from FSC 100%-certified wood.

Certifications

FCC IDs
Not available
Other certifications
FSC 100% certified wood for the MDF cabinet (FSC C225755)1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026FSC 100% certified wood (FSC C225755). The claim applies only to the wood cabinet.

In the box

In the box
Stanmore IV speaker, Mains lead, Quick start guide, Legal and safety information1Maker product pagemarshall.com/us/en/product/stanmore-ivRead 14 October 2026Box contents: Stanmore IV speaker, mains lead, quick start guide, legal and safety information.

Warranty

Manufacturer warranty (source market)
2years13Maker product pagemarshall.com/us/en/policies/warrantyRead 14 October 2026US market. Marshall's policy of 2025-02-13 gives a two-year limited warranty on speakers bought from marshall.com or a US authorized dealer, counted from purchase or delivery. The maker's support page says one year for all products and an exclusive two years for purchases on marshall.com. The two pages differ for dealer purchases, so two years applies to marshall.com purchases only. Statutory rights are excluded.14Maker product pagemarshall.com/us/en/support/warrantyRead 14 October 2026Support page: all products carry a 1-year warranty, and speakers bought online at marshall.com carry an exclusive 2-year warranty.

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Sources

We read 14 sources for this wireless speaker. The numbers match the markers in the sheet.

  1. Read 14 October 2026Backs 27 fields
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