Scorata scores summarize analyzed review evidence on a 1–5 scale; they are not laboratory measurements or a simple average of customer star ratings. Feature scores summarize the reviews covering that feature. The overall score averages feature scores within each review, then combines review averages. When both expert and customer evidence are available, those two groups receive equal weight. Products can have different review coverage, so small score gaps do not establish a winner.
Recommendations prioritize important features for the category, with a score of at least 3.5, a gap of at least 0.25 points and at least two supporting reviews per product. Features with widely varying scores or broad connectivity contexts are excluded from recommendations. These safeguards do not establish statistical significance.
Quick verdict
What each product is best for
The review evidence points to a tradeoff: Weight convenience and Loudness / maximum volume versus Microphone and Speakerphone quality. Choose according to which strengths matter more to you; the overall score alone does not settle that choice.
Choose JBL Boombox 4 for Weight convenience and Loudness / maximum volume.
Choose Marshall Middleton II for Microphone and Speakerphone quality.
Why these recommendations?
JBL Boombox 4
Where It Has the Edge
Weight convenience is 4.1 vs 2.5. The lighter redesign is noticed and appreciated, but opinions on portability depend heavily on context. Some reviewers find...
Loudness / maximum volume is 5.0 vs 4.4. Output is a defining strength: reviewers repeatedly describe it as exceptionally loud, with enough projection for backyards, parties,...
Charging time is 5.0 vs 4.5. Roughly three-hour charging is repeatedly praised as a meaningful improvement over the much slower Boombox 3. Reviewers see...
Marshall Middleton II
Where It Has the Edge
Microphone is 4.4 vs 1.3. The built-in microphone is a welcome addition and generally works well for hands-free calls. Pickup is strongest at...
Speakerphone quality is 4.0 vs 1.0. Speakerphone performance is good at close range, with clear calls reported by several reviewers. Quality drops with distance,...
Small-room suitability is 4.8 vs 2.3. The speaker is particularly well suited to desks, kitchens, and small-to-medium rooms. It can fill these spaces comfortably...
JBL Boombox 44.4 overall score
Marshall Middleton II3.8 overall score
Compare features
Scores are out of 5. Missing scores mean missing review evidence, not a missing feature.
Scored on both products
Ownership and support
Power reliability
JBL Boombox 4
5.0
Marshall Middleton II
1.4
Details and evidence for Power reliability
JBL Boombox 4
A major upgrade is how little performance drops when unplugged: several reviewers say battery operation remains almost as authoritative as AC power. Day-to-day power delivery and reconnection are also described as dependable.
Power reliability is the clearest customer concern. Multiple buyers report units that would not charge, arrived dead, stopped holding power, or failed across more than one replacement, although another customer described Marshall speakers as reliable.
Value is the biggest non-sound disagreement. Some reviewers think the premium is justified by durability, battery design, and performance—especially on sale—while others call the regular price excessive compared with cheaper or more feature-rich party speakers.
Price is a recurring concern. Several reviewers think the Middleton II is expensive for its size, especially when the Kilburn III or cheaper rivals are close enough in price to complicate the value proposition.
At discounted prices, several reviewers see strong value in the added power, battery system, and modern connectivity. At full price, others prefer cheaper PartyBox or competing speakers that offer more inputs, karaoke features, or comparable sound.
Value opinions are split. Some reviewers and customers consider it worth the premium or a strong buy at the right price, while others think cheaper rivals or nearby Marshall models offer better value.
Setup is consistently easy: reviewers describe quick Bluetooth pairing, automatic connection, and little to no learning curve. The speaker works immediately without requiring complicated app configuration.
Bluetooth setup was described as extremely easy by a customer, with quick connection and little friction. Pairing simplicity is a clear usability strength.
Details and evidence for Latency with TV (lip sync)
JBL Boombox 4
Latency is generally manageable, especially with LC3/LE Audio, and one tester reported no issue for phone video. Older SBC connections can introduce more delay, so the experience depends on the source and codec.
One reviewer found noticeable audio delay with video playback and said lip sync was not correct. Buyers planning to use the speaker for TV or video should expect Bluetooth latency.
The absence of a built-in mic or mic input is repeatedly criticized by reviewers who want calls or karaoke. That omission stands out more because the speaker is loud and expensive enough to invite party use.
The built-in microphone is a welcome addition and generally works well for hands-free calls. Pickup is strongest at close to moderate distance rather than across a large room.
There is effectively no speakerphone capability because the Boombox 4 lacks a built-in microphone. Reviewers flag this as a drawback for anyone who wants hands-free calls.
Speakerphone performance is good at close range, with clear calls reported by several reviewers. Quality drops with distance, where voices can become less clear or more echoey.
Several reviewers warn that the Boombox 4 can be excessive in very small or quiet rooms. It can still sound good indoors, but its scale and output make larger spaces and outdoor use a more natural fit.
The speaker is particularly well suited to desks, kitchens, and small-to-medium rooms. It can fill these spaces comfortably without requiring maximum volume.
Playtime Boost can extend runtime by reducing low-frequency output, but reviewers often dislike the resulting sound. A few find the tradeoff practical for background listening or emergency endurance, while others say it becomes hollow or loses nearly all bass.
LC3 support was praised for reducing energy use while maintaining good audio performance. That gives the newer Bluetooth implementation a modest efficiency advantage.
Details and evidence for Cabinet construction / bracing
JBL Boombox 4
The enclosure is repeatedly described as rugged, stable, and well protected with reinforced edges, rubber bumpers, sealed flaps, and tough fabric. The flatter base also helps it stay planted during high-output playback.
Construction feels premium overall, but there is a specific concern about the removable outer wrap lifting at the corners. Other users praised the materials, so build impressions are positive with a notable casing caveat.
The lighter redesign is noticed and appreciated, but opinions on portability depend heavily on context. Some reviewers find one-hand carrying manageable, while others call the roughly 13-pound body bulky, awkward, and best for short carries.
Weight is one of the most repeated drawbacks. At about 1.8 kg, it feels substantial and premium, but several reviewers and customers found it heavy for bags, walks, or truly portable use.
One unboxing criticizes the packaging as unnecessarily large for the small number of included accessories. No other review offers a clear opinion on packaging quality.
One customer reported a good unboxing experience and that the speaker arrived in good condition. There is limited commentary on packaging beyond that positive experience.
USB-C lossless audio is widely welcomed as a modern wired option, but many reviewers dislike the removal of the 3.5mm aux jack. The result is capable digital wired playback with weaker compatibility for older analog sources.
The 3.5mm auxiliary input is repeatedly welcomed as a useful fallback when Bluetooth is not ideal. Reviewers also liked that the port is easy to access.
Most reviewers are strongly positive, especially for first-time buyers wanting a rugged, high-output party speaker. The main reasons for hesitation are the premium price, sheer size, high-volume tonal issues, and limited legacy connectivity.
Overall satisfaction is mostly high, with many customers calling the speaker excellent or saying they would buy it again. Repeated charging failures and delayed LE Audio support create a meaningful minority of strongly negative experiences.
At normal levels, several reviewers praise the speaker’s separation, coherence, and ability to keep vocals clear over heavy bass. Others find the presentation narrower and less separated than the Boombox 3, particularly when pushed hard.
Complex arrangements can become somewhat cluttered, even though the stereo layout helps create space. The speaker is cohesive with most music but not flawless when many instruments compete at once.
Details and evidence for Frequency response balance
JBL Boombox 4
The default tuning generally favors bass and treble over the mids, which makes it exciting but not consistently neutral. Reviewers say EQ can improve the balance, while very high volume can thin the mids or sharpen the top end.
Most reviewers describe the tuning as balanced, with clean mids and controlled bass. A few found the upper mids and treble less detailed or somewhat overshadowed by the low end.
Details and evidence for Loudness / maximum volume
JBL Boombox 4
Output is a defining strength: reviewers repeatedly describe it as exceptionally loud, with enough projection for backyards, parties, gyms, and large outdoor spaces. Several tests put it near much larger party speakers.
The Middleton II gets impressively loud for its size and easily handles rooms, backyards, and smaller gatherings. Reviewers still caution that it is not a true high-output party speaker.
The speaker can float while continuing to play, and the hands-on water test made this a memorable strength. That makes it unusually reassuring for pool and lake use.
The ability to float adds extra reassurance around pools despite the speaker’s weight. One reviewer specifically saw it as useful peace of mind for poolside use.
Illuminated controls, bass-mode lights, connection indicators, and battery-level feedback make status easy to read. Reviewers particularly appreciate visibility at night and simple troubleshooting cues.
The LED bars provide useful feedback for battery, volume, bass, and treble levels. A customer specifically appreciated being able to see power and volume status at a glance.
Recycled materials help, but the replaceable battery is the sustainability feature reviewers value most. It can extend useful product life and reduce the likelihood of discarding the entire speaker when the battery ages.
Repairability and replaceable parts make the Middleton II less disposable than many sealed portable speakers. Reviewers viewed that approach as a meaningful sustainability advantage.
Detail is generally strong, especially in vocals, treble textures, and layered arrangements. A minority of reviewers find the mids less open or detailed than the Boombox 3 when the bass-heavy tuning is pushed.
Detail retrieval is generally good, with reviewers hearing subtle percussion, vocals, and spatial information that smaller speakers can lose. The main weakness is reduced high-frequency detail in some dense or bass-heavy tracks.
Using the large internal battery to top up a phone or other device is consistently viewed as practical, especially for camping, beach days, and long outdoor events. The feature worked as expected in hands-on testing.
The reverse-charging power-bank function is widely seen as genuinely useful for travel and outdoor use. One customer did report that this function failed before the speaker later stopped charging entirely.
Details and evidence for Inter-speaker connectivity
JBL Boombox 4
Auracast is a major upgrade for building larger JBL setups, supporting stereo pairs and broad multi-speaker synchronization. Reviewers like the ease and scale of current-generation pairing, though older PartyBoost models are excluded.
Auracast gives the Middleton II a flexible path to grouped playback with compatible speakers and broadcasts. Reviewers viewed it as a useful, more future-facing inter-speaker option.
Build quality is a major strength, with rugged fabric, rubber protection, a stable base, and IP68 sealing repeatedly praised. The strongest durability caveat comes from one severe drop test that caused temporary functional problems.
Most reviewers see the Middleton II as a premium, well-made product with strong sound and practical features. A few customer failures and one casing-quality concern prevent the overall quality picture from being uniformly positive.
The switch from PartyBoost to Auracast is a recurring ecosystem drawback. Owners of older JBL PartyBoost speakers generally cannot pair them with the Boombox 4, so upgrading can break an existing multi-speaker setup.
Backward compatibility is limited because the Middleton II does not wirelessly stack with the original first-generation Middleton. That is a meaningful drawback for owners hoping to reuse an older unit in a paired setup.
Despite its size, the Boombox 4 is repeatedly praised for frictionless day-to-day use: quick pairing, reliable reconnection, strong battery life, physical controls, ruggedness, and the ability to move between home, outdoor, and social settings.
Everyday operation is straightforward thanks to direct controls, simple pairing, and a practical feature set. Reviewers generally found it easy to live with across desk, room, and portable use.
The integrated handle is usually described as sturdy, comfortable, and easy to grip, but the shift from metal to plastic divides opinion. Several reviewers also wish JBL had added shoulder-strap attachment points for longer carries.
The detachable strap is generally useful and later versions feel more durable, but opinions are mixed because the speaker lacks a full carry handle. That matters more given its relatively heavy weight.
Connecting two source devices at once is treated as a useful, straightforward feature. Reviewers describe switching between devices as seamless or simple enough for shared DJ control.
Multipoint is treated as a useful everyday upgrade, allowing two source devices to remain connected. Reviewers liked the flexibility for switching between devices without repeated pairing.
The Boombox 4 has enormous usable output and unusually strong battery-powered headroom. The tradeoff is that compression, thin mids, harsh treble, or distortion can appear as some units are driven very close to maximum volume.
The stronger amplifier setup gives the speaker useful headroom and low-frequency extension. Reviewers described the added reserve as helping bass feel more substantial without immediately losing control.
Details and evidence for Distortion at high volume
JBL Boombox 4
High-volume behavior is the main sound-quality split. Some testers heard no true distortion even at full blast, while others reported compression, muddiness, shrill treble, sibilance, or bass-heavy distortion near the top of the range.
It generally stays composed at high volume, with multiple reviewers reporting little obvious distortion. The main caveat is bass compression or rougher treble when pushed close to maximum output.
Reviewers consistently treat the IP68 dust protection as well suited to beaches, campsites, and other outdoor environments. The sealed, rugged construction reduces concern around sand and dusty surfaces.
The IP67 dust protection earned strong confidence for outdoor use. Reviewers specifically saw the sealed design as well suited to dirt, sand, and general outdoor exposure.
Details and evidence for Multi-speaker pairing reliability
JBL Boombox 4
Auracast pairing is consistently described as easy and dependable in hands-on use. Reviewers successfully synchronized multiple JBL speakers and praised the minimal setup required.
The absence of conventional multi-speaker pairing disappointed at least one reviewer. Auracast offers another route to grouped playback, but it does not fully replace the expected pairing option for everyone.
Codec support is considered adequate to strong, with SBC and AAC commonly noted and LC3/LE Audio available in several reviews. LC3 can improve latency and wireless quality, while the overall codec list is not viewed as a major limitation.
Codec support is mixed: AAC, SBC, and LC3 are useful additions, but several reviewers criticize the lack of aptX or LDAC. One customer was also frustrated that promised LE Audio functionality had not arrived.
The speaker has useful app, EQ, battery, and grouping functions, but it is not a full smart speaker. Reviewers note the absence of Wi-Fi, voice assistants, and microphone-driven features as meaningful limitations for smart-home-style use.
The feature set covers the essentials, including EQ, battery controls, microphone use, and Auracast. Some reviewers still miss extras found on other Marshall models, so the smart feature package feels useful rather than exhaustive.
The seven-band EQ is one of the most consistently praised software features. It gives enough control to tame bright highs, reshape bass, or make the speaker more balanced, and reviewers often recommend using it.
EQ flexibility is a strong point. Reviewers liked the physical bass and treble controls plus the app’s five-band EQ, though one noted that more advanced adjustment options would still be welcome.
Core controls are consistently considered intuitive, tactile, and easy to reach, including volume, playback, pairing, Auracast, and bass modes. The physical layout reduces the need to open the app for common adjustments.
Physical controls are a standout usability feature, letting users handle playback, volume, bass, and treble without opening the app. Reviewers repeatedly described the layout as intuitive and convenient.
Details and evidence for Control button responsiveness
JBL Boombox 4
Physical buttons are generally tactile, direct, and responsive, with useful click feedback. A severe drop test temporarily reduced responsiveness, so the controls themselves are good but not immune to impact damage.
The raised, tactile controls are generally easier to feel and use than before. One reviewer noted that some strip controls can be pressed accidentally, so the layout is not flawless.
Details and evidence for Bluetooth connection stability
JBL Boombox 4
Wireless stability is a strong point across the hands-on reviews, with quick reconnection, rock-solid operation, and few complaints about dropouts. Pairing and day-to-day switching are consistently described as dependable.
Wireless stability is strong in testing, with reviewers reporting reliable connections around homes and gardens plus fast reconnection to paired devices. The newer Bluetooth implementation appears dependable in normal use.
Review contexts may differ — read the details before interpreting the score gap.
Details and evidence for Bluetooth connectivity
JBL Boombox 4
Basic Bluetooth use is consistently straightforward, with fast pairing and quick reconnection. Reviewers describe it as an easy everyday wireless speaker rather than a finicky device.
Wireless range tested very well, with one review reaching about 133 feet before dropouts and another citing roughly 150 feet in ideal conditions. Reviewers characterize the connection as long-range and stable.
Bluetooth range is a notable upgrade, with reviewers reporting much longer reach and reliable use around a house, garden, or park. The extended range reduces the likelihood of dropouts in everyday use.
Voices are usually a strength, staying clear and intelligible even over strong bass. Podcasts and vocals were described as natural, detailed, and resistant to boxiness, though one review found vocals slightly cold.
Close-range call testing produced clear, rich voice pickup, even with quiet speech. Voice quality appears strongest when the user stays near the speaker.
The JBL Portable app is broadly praised as easy, useful, and stable, with quick connection and helpful control over EQ, grouping, firmware, lights, and battery features. No recurring app-reliability complaint appears in the reviews.
The Marshall app is consistently described as simple, well organized, and easy to use. Reviewers liked quick setup, clear battery information, and straightforward access to EQ and device settings.
Music playback is broadly energetic and engaging, especially for bass-heavy genres, parties, and workouts. The speaker also handles vocals and layered tracks well, though maximum-volume harshness can reduce refinement.
Music playback is consistently enjoyable, with reviewers especially liking rock and bass-driven material. The warm, energetic presentation also works across a broader range of genres.
The speaker itself does not normally charge through USB-C in the hands-on reviews that discuss this directly, and that limitation is criticized. USB-C remains useful for audio and charging other devices, but AC power is still required for the speaker.
Roughly three-hour charging is repeatedly praised as a meaningful improvement over the much slower Boombox 3. Reviewers see the faster turnaround as practical for frequent use.
Quick charging is repeatedly praised as practical, with short top-ups restoring several hours of playback. Reviewers found this especially useful before gatherings or when the battery is nearly empty.
The user-replaceable battery is one of the most celebrated upgrades across the review set. Reviewers value both the ability to carry a spare and the longer product lifespan, although replacement cost and the screw-based swap process draw minor caveats.
The replaceable battery is repeatedly praised as a meaningful long-term advantage. Reviewers value the ability to extend the speaker’s useful life instead of treating the battery as permanently sealed.
Details and evidence for Battery life (if portable)
JBL Boombox 4
Battery endurance is a major strength, with several hands-on tests landing around 25 to 35 hours at moderate levels and some sources reporting even longer. High volume and heavy bass shorten runtime substantially, but the overall consensus remains very positive.
Battery life is a major strength, with many reviewers praising roughly 30-hour endurance and multi-day use. A few users did not reach the full claim, and one customer found the newer model shorter-lived than the original.
The Boombox 4 is decidedly front-facing rather than 360-degree. Reviewers say sound quality and tonal balance diminish off-axis, so placement matters if people are spread around the speaker.
The 360-degree presentation is repeatedly praised for producing a wide, immersive sound from many listening positions. Reviewers generally found the effect convincing rather than just a marketing claim.
USB-C lossless playback is widely viewed as a meaningful quality option, and LC3 support adds a modern wireless path in several reviews. The speaker is strongest for Bluetooth and USB-C rather than a wide range of legacy formats.
Higher-resolution wireless audio options are limited. Reviewers specifically note that the speaker does not provide the broader high-res codec support available from some competitors.
The Boombox 4 produces real stereo and can create a wide, immersive image when heard from the front. Its narrow listening window limits that effect off-axis, while pairing two units can widen the field.
Stereo imaging is one of the clearest strengths. Reviewers repeatedly praise unusually convincing left-right separation and a soundstage that extends beyond the compact cabinet.
Unlike many large party speakers, it remains enjoyable at quieter levels. Reviewers describe full sound, retained clarity, and useful relaxed-listening EQ options without needing to crank the volume.
Low-volume listening is a strength, especially for desks and quiet rooms. Reviewers and a customer said the speaker retains a full, satisfying sound without needing to be played loudly.
Bass is the clearest consensus strength: reviewers describe deep extension, physical punch, and unusually strong output for a portable speaker. Bass Boost modes are more divisive, sometimes sounding boomy, resonant, or overwhelming indoors.
Bass is one of the most praised sound traits: deep, punchy, controlled, and unusually substantial for the size. It can compress at maximum volume and cannot reproduce the deepest sub-bass, but most reviewers still rate it highly.
Overall sound quality is rated highly across the set, with strong bass, clear vocals, and impressive scale. The consensus becomes more mixed at maximum volume, where some reviewers hear compression, harsh treble, narrowness, or distortion.
Overall sound quality is a major strength, with broad praise for clarity, stereo width, bass, and musicality. Even critical reviewers generally describe the sound as good, while the main reservations involve price, high-frequency detail, or reliability rather than core audio quality.
Details and evidence for Drop resistance durability
JBL Boombox 4
Drop durability is mixed. The heavy rubber protection looks reassuring, but one laboratory drop test caused shutdowns, reduced button responsiveness, scuffs, and scratches before the unit later recovered.
One hands-on reviewer had enough confidence in the rugged build to say an accidental drop would not cause immediate concern. That supports strong perceived impact durability.
The recognizable boombox silhouette is broadly liked, and several reviewers praise the camo finish or cleaner integrated design. The main visual complaint is the plastic handle, which some feel looks cheaper than the previous metal version.
Design is one of the most consistently praised traits. Reviewers and customers repeatedly call the retro Marshall styling premium, distinctive, attractive, and closer to décor than a generic portable speaker.
IP68 protection earns near-unanimous praise for pool, beach, rain, and outdoor use. One tester submerged the speaker and watched it continue playing, making water resistance one of its strongest practical advantages.
Reviewers are highly positive about the IP67 protection and repeatedly frame it as suitable for pools, rain, beaches, and outdoor use. One reviewer still considered it less rugged than purpose-built outdoor rivals.
AirPlay is not supported, which one iPhone-focused reviewer specifically called a letdown. Apple users wanting Wi-Fi-based AirPlay streaming will need another option.
It can technically connect to a compatible TV, but one reviewer explicitly says the Boombox 4 is not designed as a TV speaker. Buyers focused on home theater should treat that capability as secondary rather than a core strength.
The backlit control strip and mode-colored radiator LEDs provide clear visual feedback without becoming a full party-light system. One reviewer specifically liked the backlit controls.
The radiator lighting is visually fun for some reviewers, but far from universally loved. Praise focuses on subtle party personality and useful mode feedback, while critics call it hard to see, pointless, or too limited in color and brightness control.
The companion app can be installed and used without creating an account, which one reviewer explicitly appreciated. That makes the software experience relatively privacy-friendly.
One reviewer specifically disliked the move away from the earlier three-way/subwoofer arrangement, linking the new two-way design to separation problems and high-volume distortion. Other reviews often liked the stronger bass overall, but did not evaluate the missing subwoofer itself.
Support experiences are inconsistent. One customer praised Marshall’s warranty replacement, while others felt help was limited or unhelpful when charging failures and delayed LE Audio support arose.
Details and evidence for Dialogue clarity (for TV/soundbar use)
JBL Boombox 4
For video-style listening, speech remains intelligible and strong even when high volume introduces some compression. The speaker is not positioned as a dedicated TV solution, but dialogue itself comes through clearly.
Details and evidence for Smart assistant integration (Alexa
JBL Boombox 4
The lack of built-in assistant support is a clear weakness for buyers who expect Alexa, Google Assistant, or Siri from an expensive speaker. Reviewers specifically call the omission disappointing.
One reviewer was disappointed that the speaker remains Bluetooth-only with no Wi-Fi streaming. That limits its flexibility as a more integrated at-home speaker.
