Compare Sonos Roam 2 Portable Bluetooth Speaker vs Marshall Kilburn III Portable Bluetooth Speaker

AirPlay support is consistently confirmed across reviews and is presented as part of the Roam 2’s appeal for Apple and Wi-Fi users.

Amplifier evidence is clear: the Roam 2 uses two Class-H/digital amplifiers powering its tweeter and mid-woofer architecture.

Power references point to a strong 50W Class D amplifier setup, repeatedly tied to the speaker's loud, forceful output.

App reliability is mixed: some reviewers found the Sonos app easy or handy, while others reported setup hurdles, app quirks, dead buttons, or broader Sonos app frustrations.

App impressions are mixed: one reviewer could not finalize the app connection, while others found the app clean, useful, and easy for EQ and settings.

Audio format support is limited on Bluetooth, with repeated evidence of SBC and AAC only, while Wi-Fi can provide higher-quality streaming.

Audio format support is adequate but limited, with reviewers noting SBC, AAC, and LC3 while calling out the lack of higher-resolution codecs.

Backwards compatibility is decent, with familiar Roam sound/features and evidence that original Roam units can pair or remain compatible in some contexts.

Battery life is the most common limitation: 10 hours is usually workable, but many reviewers say it trails similarly priced or larger rivals.

Battery life is one of the clearest strengths, with reviewers repeatedly citing about 50 hours or real-world multi-day use.

Bluetooth codec support is limited, with reviewers citing SBC and AAC only and comparing unfavorably to LDAC-capable rivals.

Bluetooth codec support covers standard lossy codecs, but reviewers consistently noted the absence of hi-res options such as LDAC or aptX Adaptive.

Bluetooth stability is mostly positive, with reviewers reporting easy pairing, auto-connect, and no dropouts in testing.

Bluetooth connection stability tested well in direct use, with one reviewer reporting easy pairing, a solid connection, and no signal weirdness.

Bluetooth range is viewed positively, with reviewers citing a 10-meter range and one test exceeding that distance around the house.

Build construction is premium for the class, with metal, rubberized parts, and sturdy materials noted by reviewers.

Build and cabinet quality are praised as solid, premium, and durable-feeling, with sturdy materials and a serviceable battery access door.

Charging is convenient through USB-C, wireless Qi support, and improved cables, but specific charge-speed evidence is limited and one third-party charging comment was slower.

Charging is generally strong with USB-C PD and quick-charge claims, though reviewers warn that weaker chargers or playback while charging can slow things down.

Cohesion is a strength, with reviewers describing balanced output, fullness, and a wide presentation that avoids obvious compression for the size.

The speaker presents a cohesive Marshall package, combining warm sound, loud output, physical controls, and retro styling into a unified experience.

The dedicated Bluetooth button and tactile controls are widely viewed as meaningful usability improvements over the original Roam.

Physical control feel is a major strength, with reviewers praising tactile switches, knobs, and playback controls.

Design earns broad praise for a sleek, minimalist, premium, portable look, though one reviewer noted the matte black finish picked up marks.

Design is one of the most widely praised traits, with reviewers repeatedly calling out the amp-inspired retro look, premium finishes, and statement-piece character.

Detail retrieval is mostly good for a small speaker, with several reviewers hearing clarity and track details, though What Hi-Fi and Good Housekeeping wanted more nuance.

Detail retrieval is generally strong, especially in vocals, cymbals, bass texture, and layered tracks, though one reviewer heard some upper-mid detail loss.

High-volume distortion is mostly controlled, with several reviewers hearing clear output or no distortion, though some note DSP or performance tradeoffs at the top end.

High-volume distortion control is excellent across reviews, with repeated reports of loud playback without cracking, hissing, peaking, muddiness, or obvious distortion.

Durability evidence is positive overall, including rough handling, sand, ocean exposure, drops, and scratch-free results, though one reviewer treats drop-proof claims cautiously.

Dust resistance is strongly supported by IP67 dustproof evidence, making the Roam 2 suitable for beach, sand, and outdoor use.

Dust resistance improved over the prior model, with reviewers consistently citing IP54 protection as useful but not fully rugged.

Dynamic headroom is limited at high volume because one reviewer heard DSP step in and reduce dynamics when bass was pushed.

Dynamic behavior is a strength, with reviewers crediting dynamic loudness and placement compensation for preserving balance and detail as volume changes.

Energy management is helped by sleep mode, power-save behavior, and automatic power-down, though battery life remains only moderate.

Energy efficiency is supported by the unusually long runtime from only a modest battery-capacity increase, which one reviewer attributes to major efficiency gains.

EQ customization is useful but basic, generally limited to bass, treble, and loudness controls through the Sonos app.

EQ customization is broad for a Bluetooth speaker, with physical bass and treble knobs plus app presets, custom EQ, placement compensation, and M-button shortcuts.

Everyday usability is a strong point, with reviewers praising grab-and-go portability, simple Bluetooth use, shower/room use, and easy placement.

Everyday usability is strong thanks to straightforward controls, easy living-room use, and the ability to move the speaker around without losing useful sound coverage.

Float capability is absent; reviews explicitly state the Roam 2 will sink or still does not float.

Most reviewers describe the tuning as balanced, clear, and full for the size, with respectable bass and mids, though a few wanted more clarity or refinement.

Frequency balance is broadly praised for tight bass, clear mids, and crisp highs, though a few reviewers heard extra bass or mids in some contexts.

Google support is a repeated weakness: reviewers consistently state that Google Assistant is not supported on the Roam 2.

Google support is limited to Fast Pair, which reviewers describe as a useful setup convenience rather than a full smart ecosystem feature.

The lack of a carry strap, loop, or attachment point is a recurring complaint, and one review also notes it does not float.

The carry strap is praised for comfort, style, and usefulness, especially its velvet lining and secure feel despite the speaker's weight.

Home-theater integration is limited: it can fit the Sonos ecosystem, but one review says two Roam 2 units cannot act as soundbar surrounds.

Home theater integration is limited today, but one reviewer notes future Auracast surround use with Marshall soundbars as a possible path.

Inter-speaker connectivity is a standout strength, including Sonos grouping, Sound Swap, Bluetooth audio sharing to other Sonos speakers, and stereo-pair options.

Inter-speaker connectivity is a weakness: reviewers repeatedly note no native stereo pairing or multi-speaker system, and one Auracast attempt was glitchy.

LED lighting effects are essentially absent; one review frames the Roam 2 as not LED-filled compared with flashier competitors.

LED lighting is present as functional knob illumination and level indication, not as decorative party lighting.

Lighting effects are not a selling point; the design favors minimalism and sound over party-style lighting.

Lighting is limited to useful LED indicators on the controls rather than immersive or decorative effects.

Reviewers generally find the Roam 2 loud for its compact size, with enough output for rooms, patios, and casual outdoor use, but not enough for high-volume parties.

Maximum volume is a major strength, with reviewers describing serious, room-filling, or even unbelievable loudness for a single portable speaker.

Low-volume performance is specifically praised for retaining richness, separation, and bass rather than thinning out in background listening.

The microphone supports voice control and Trueplay tuning, but it does not turn the speaker into a speakerphone.

The microphone category is a clear weakness because multiple reviewers state there is no built-in mic.

Multi-speaker use is a strength inside the Sonos ecosystem, with reliable grouping and stereo-pair options, though some stereo features require Wi-Fi.

Multi-speaker pairing reliability is weak because reviewers say the speaker lacks true wireless stereo or native multi-speaker pairing, with one failed Auracast attempt.

Multipoint is a clear weakness because one review explicitly says the speaker does not support multipoint pairing.

Multipoint connectivity is supported and described as letting two devices pair at the same time.

Omnidirectional sound is weak because one review says the Roam 2 pushes sound out the front rather than around the speaker.

Omnidirectional sound is a standout feature, with reviewers repeatedly praising the 360-degree, wide, room-filling presentation and minimal dead spots.

On-device controls are strong, with physical buttons for playback, volume, microphone, Bluetooth, and power, including track-skip support.

On-device controls are a major strength, with reviewers repeatedly praising the knobs, switches, playback control, and simple no-learning-curve operation.

Power-bank functionality is absent because one review states there is no reverse charging.

The power-bank function is repeatedly confirmed, letting the speaker charge phones or other devices through USB-C.

Price/value is mixed: reviewers often call it expensive, but some justify the price for Sonos integration, build, sound, AirPlay, and Wi-Fi.

Price and value are mixed-to-positive: reviewers call it pricey, but most say the sound, design, battery, and upgrades justify the cost.

Setup is generally easier than the original because Bluetooth can work out of the box, though some app-based setup experiences remain inconsistent.

Setup is simple, helped by Bluetooth pairing and Google Fast Pair, with one reviewer calling the pairing process real simple.

Alexa and Sonos Voice Control are repeatedly supported, but evidence also shows Alexa depends on Wi-Fi and is not a full replacement for every control task.

Smart assistant integration is effectively absent, with reviewers repeatedly noting no voice assistant or voice control.

Smart features are a key advantage, including Wi-Fi, Trueplay, voice assistants, app control, Sonos grouping, AirPlay, and streaming-service access.

Smart features are intentionally minimal, with no Wi-Fi, voice assistant, or smart-speaker behavior despite a useful app and EQ tools.

Speakerphone capability is poor or absent, with multiple reviews stating there is no speakerphone or phone-call support.

Speakerphone capability is absent because reviewers state there is no built-in microphone and that it cannot be used as a speakerphone.

Status indicators are basic; reviews mention LEDs, but at least one reviewer wanted larger lights and a graded battery indicator.

Status indicators are useful, with reviewers highlighting the 10-bar battery gauge and illuminated control-level LEDs.

Stereo performance is mixed because the speaker itself is mono, but multiple reviews note that pairing two Roam units can create a better stereo experience over Wi-Fi.

Stereo imaging is wide and impressive, but not truly precise stereo separation; reviewers praise spaciousness while noting symmetry and separation limits.

The Roam 2 has limited sub-bass reach; one review says it cannot reproduce deep sub-bass notes.

Low-end hardware gets positive attention, with reviewers citing the built-in subwoofer or woofer as a source of strong bass.

One reviewer described the presentation as room-filling surround-like sound, but broader evidence still points to a compact speaker rather than a true surround product.

Surround-like presentation is wide and immersive, but reviewers caution that it is not true full surround sound.

Sustainability is supported by the replaceable battery design and battery-preservation features that may extend useful life.

USB-C charging is well supported, with reviewers repeatedly noting the port or included USB-C-to-USB-C cable.

USB-C charging is a clear upgrade and strength, supporting charging the speaker and external devices with modern USB-C hardware.

Value for money depends heavily on priorities: it is expensive against Bluetooth-only speakers but stronger when Sonos ecosystem features matter.

Overall value for money is mostly positive, with reviewers seeing worthwhile upgrades, strong sound, premium design, and long battery life despite the price.

Voice assistant responsiveness is mostly favorable, especially for Sonos Voice Control and basic Alexa tasks, though Alexa music-control limits appear in one review.

Voice and vocal reproduction earns mostly positive notes, with clear vocals and good spoken-word body, although one comparison found the Bose SoundLink Flex clearer.

Voice clarity is strong for music playback, with reviewers repeatedly reporting clear, forward, or crisp vocals.

Voice recognition is generally positive where tested, with reviewers reporting accurate voice control and Sonos Voice Control understanding requests.

Water resistance is a strong consensus point, with repeated IP67 evidence and real-world water, shower, splash, and submersion comments.

Water resistance is useful but moderate: reviewers consistently cite IP54 splash protection while warning it is not full waterproofing or beach-rugged IP67.

Portability and weight are major strengths, with repeated praise for the Roam 2’s light, compact, backpack-friendly shape.

Weight convenience is mixed: reviewers find it carryable with the strap, but repeatedly describe it as heavy, large, or better for home and gatherings than backpacking.

Wi-Fi streaming is a major advantage, with reviewers praising Sonos ecosystem integration, AirPlay-capable Wi-Fi playback, and stable Wi-Fi use, despite setup/app caveats.

Wi-Fi streaming is a weakness because reviewers repeatedly note there is no Wi-Fi support, even at this price.

Wired input is absent; the USB-C port is for charging and one review explicitly says it cannot be used for wired audio playback.

Wired input is a useful fallback, with reviewers highlighting the 3.5mm AUX port for non-Bluetooth or higher-quality listening paths.