⚡️🔋 Anker Nano: https://geni.us/GC-AnkerNano
Sony ULT Tower 7: https://geni.us/GC-SonyULTTower7
JBL Partybox 330: https://geni.us/GC-JBLPartybox330
JBL Partybox 320: https://geni.us/GC-JBLPartybox320
JBL Easy Sing Mics: https://geni.us/GC-JBLEasySingMics
JBL Partybox Mics: https://geni.us/GC-JBLPartyboxMic
Finally Dethroned? Sony ULT Tower 7 vs. JBL PartyBox 330 vs. JBL PartyBox 320
For anyone shopping for a high-output portable party speaker, the JBL PartyBox lineup has long been the default recommendation. The newer JBL PartyBox 330 is easily one of the most popular options on the market, and even heading into 2026 and 2027, the older JBL PartyBox 320 remains a powerhouse value. Both are easy to transport, put on an incredible light show, and deliver crowd-pleasing bass right out of the box.
However, Sony has entered the ring with a massive contender designed to take the acoustic crown: the Sony ULT Tower 7. While none of these speakers are completely without flaws, the Sony ULT Tower 7 makes a serious case as the best-sounding portable party speaker in its class.
To see where it truly stands, we pitted the Sony ULT Tower 7 directly against both the JBL PartyBox 330 and the JBL PartyBox 320. In this breakdown, we compare physical portability, battery life, pro-versus-consumer port selection, wireless ecosystems, and head-to-head sound quality so you know which speaker actually belongs at your next party.
Quick Specs & Pricing Overview
Sony ULT Tower 7 ($650): The heaviest, loudest, and most acoustically advanced speaker of the trio. Weighs 50 lbs and features a 3-way acoustic layout (1 front woofer with a downward-firing exhaust, dual mid-range drivers, and 4 tweeters—2 front, 2 rear), up to 30 hours of battery life, physical top controls, and pro-grade XLR and RCA inputs/outputs.
JBL PartyBox 330 ($630): The feature-packed consumer favorite. Weighs 38 lbs with a luggage-style telescopic handle, dual front woofers, dual tweeters, an 18-hour quick-swap battery, a top touch-display screen, dynamic RGB lighting, dual mic inputs, USB-C charging, and an optical audio input for TV connections.
JBL PartyBox 320 ($500 on sale): The sweet-spot value champion. Shares the same 38-lb body, telescopic handle, 18-hour swappable battery, and dual-woofer/dual-tweeter architecture as the 330, but keeps tactile physical control buttons and a brighter, punchier acoustic tuning at a lower price.
1. Design, Portability, and Durability
All three speakers are built to handle backyard parties, tailgates, and mobile gigs, featuring mostly heavy-duty plastic enclosures, thin metal front grilles, and IPX4 splash resistance (as long as the rear port panels remain sealed). However, moving them around and interacting with them day-to-day feels very different:
Size, Weight, and Wheels: The JBL PartyBox 330 and 320 both weigh in at a manageable 38 pounds and pair built-in wheels with a luggage-style telescopic handle, making them easy to tilt and roll anywhere. The Sony ULT Tower 7 is noticeably larger and heavier at 50 pounds. While Sony includes built-in wheels on the bottom, the Tower 7 lacks a telescopic handle—making it much more awkward to lug around than either JBL model.
Build Feel & Stand Mounting: While harder to move, the plastic shell and metal grille on the Sony ULT Tower 7 feel noticeably thicker and more rugged than the JBL cabinets. Because the JBL models are lighter, both the 330 and 320 include a standard 35mm pole-mount (top-hat) socket on the bottom to elevate them on a speaker stand. The 50-pound Sony omits a pole mount entirely, as it is simply too heavy for standard portable stands.
Top Panel Controls: Both the Sony ULT Tower 7 and the JBL PartyBox 320 use reliable, tactile physical buttons on the top panel. The newer JBL PartyBox 330 swaps physical controls for a top-mounted screen. In real-world use, the 330's screen is less intuitive to operate than physical buttons and raises long-term durability concerns if bumped or scratched during transport.
Party Lighting: Sony upgraded the lighting on the ULT Tower 7 compared to previous generations, but JBL still dominates this category. The light shows on the PartyBox 330 and 320 are brighter, more dynamic, and can be expanded within JBL's lighting ecosystem.
2. Battery Life, Swappable Packs, and AC Power
Keeping the music going off the grid—and maintaining your battery health years down the road—reveals a major split between consumer convenience and DIY affordability:
Real-World Battery Endurance: Both the JBL PartyBox 330 and 320 are rated for up to 18 hours of playback at 50% volume with the lights and Bass Boost turned off. The Sony ULT Tower 7 leaps ahead with an advertised 30 hours of battery life at 50% volume—even with the ULT bass mode turned on (and lights off). Turning the lights on drops the Sony to roughly 15 hours, which is still phenomenal given how loud 50% volume is on the Tower 7.
Swappable Battery Design: All three speakers feature replaceable batteries, extending the long-term lifespan of your investment. JBL wins on convenience: the PartyBox 330 and 320 use the snap-in JBL Battery 400, which swaps out in seconds without tools and is cross-compatible with the JBL Xtreme 4 and Xtreme 5. However, JBL charges a steep premium for official replacement batteries and discourages third-party packs. On the Sony ULT Tower 7, accessing the dual batteries (the same pack used singly in the Sony ULT Field 5) requires a screwdriver, but you can easily replace them with affordable, generic off-the-shelf batteries found online.
AC Wall Power & Cables: Plugging any of these three speakers directly into a wall outlet unlocks a noticeable performance boost, increasing both peak volume and low-end bass response. Both JBL speakers use a universal double-barrel AC power cord that is cheap and easy to replace. Sony switched the ULT Tower 7 over to a proprietary square power connector, meaning you will want to be very careful not to lose the included cable.
3. Ports, Microphones, and Karaoke Features
All three speakers support Bluetooth multipoint (allowing two phones to stay connected as DJs simultaneously) with low-latency video sync. Look at the rear input panels, however, and you will see that JBL built its speakers for everyday consumers while Sony built the Tower 7 for gigging pros and DJs:
JBL PartyBox 320 & 330 (Consumer-First I/O): Both JBL speakers feature a 3.5mm Aux-In and a 3.5mm Aux-Out, letting you hardwire audio sources and effortlessly daisy-chain multiple speakers together regardless of brand. Stepping up to the PartyBox 330 adds a USB-C port for charging mobile devices and an optical audio input, allowing the 330 to double as a massive living room TV soundbar.
Sony ULT Tower 7 (Pro & DJ-Focused I/O): Ironically, after JBL adopted Sony's old optical port trick, Sony removed the optical input from the Tower 7—along with standard 3.5mm Aux-In and Aux-Out jacks (requiring an RCA adapter if you need a 3.5mm connection). Instead, alongside USB-C and USB-A ports, Sony equipped the Tower 7 with stereo RCA Line-In and dedicated XLR In and XLR Out ports. This allows DJs and musicians to plug straight into a professional mixer and daisy-chain active PA speakers via XLR. (Note: The XLR inputs do not supply phantom/bus power, so XLR microphones still require an external mixer).
Microphone Inputs & Vocal Removal: Both JBL speakers include two quarter-inch inputs on the back, letting you plug in two wired microphones simultaneously without a mixer, or connect up to six wireless microphones. JBL also offers two wireless mic ecosystems: universal PartyBox wireless mics (via a quarter-inch dongle) or proprietary JBL EasySing wireless mics, which unlock a powerful AI vocal-removal tool for karaoke. By contrast, the Sony ULT Tower 7 only has a single quarter-inch mic input (requiring a mixer for dual wired mics). While Sony builds a free vocal-removal tool directly into its smartphone app, it isn't quite as potent as JBL's hardware-based EasySing system.
4. Acoustic Architecture & Head-to-Head Sound Test
Tested side-by-side unplugged at 75% volume, the physical driver layouts inside these cabinets dictate how they actually perform when pushed:
Driver Configuration: Both the JBL PartyBox 330 and 320 rely on a traditional 2-way acoustic design: dual front-firing woofers, dual front-firing tweeters, and a rear-firing bass exhaust port. The Sony ULT Tower 7 upgrades to a true 3-way acoustic architecture: a massive front-firing woofer paired with a downward-firing bass exhaust port, dual front-firing mid-range drivers (which JBL completely lacks), and four tweeters (two firing forward, two firing out the back).
Clarity, Mids, and Soundstage: The Sony ULT Tower 7 is the clear acoustic winner. Because dedicated mid-range drivers handle the vocals and instruments while four tweeters disperse high frequencies forward and backward, the Tower 7 sounds significantly wider, more open, and far more detailed than either JBL speaker. Between the two JBL models, the older PartyBox 320 actually sounds slightly better than the new PartyBox 330—the 330 leans into a noticeably warmer, slightly muddier tuning, whereas the 320 sounds crisper.
Bass Performance & EQ Modes: Thanks to its downward-firing exhaust port coupling with the floor, the Sony ULT Tower 7 produces deeper, cleaner, and harder-hitting bass than both JBL speakers—without drowning out the midrange. Sony's ULT button gives you two modes: ULT 1 for deep sub-bass extension and ULT 2 for maximum bass punch and sound pressure. On the JBL speakers, switching Bass Boost to Deep sounds great, whereas the Punchy setting tends to muddle the rest of the mix.
Max Volume Output: Any of these three speakers can easily handle a 20-to-30-person gathering. However, whether running on battery or plugged into the wall, the Sony ULT Tower 7 gets noticeably louder and maintains its composure with greater authority than both the PartyBox 330 and 320.
5. Multi-Speaker Pairing & Auracast Ecosystems
If you want to expand your setup down the road, all three speakers allow you to wirelessly link two identical units (e.g., two 330s, two 320s, or two Tower 7s) for true Left/Right stereo separation. You cannot stereo-pair a PartyBox 330 with a 320, though you can link them to play in mono sync.
JBL Auracast Ecosystem: Both the PartyBox 330 and 320 use Auracast to wirelessly sync with a massive lineup of newer JBL speakers—including the PartyBox Encore 2, 120, 130, 520, 720, and Ultimate, plus portable models like the Boombox 4, Xtreme 4, Xtreme 5, Charge 6, Flip 7, Clip 5, Grip, and Go 5. However, they are not backward-compatible with older JBL PartyBoost speakers or older TWS PartyBox models.
Sony Wireless Pairing: Even though Sony also utilizes Auracast architecture, Sony and JBL speakers will not pair with each other. The ULT Tower 7 pairs rapidly with the Sony ULT Tower 5 and ULT Tower Max, delivering a wireless connection that feels faster and more stable than JBL's implementation. While Sony states the Tower 7 supports backward compatibility with older PartyConnect speakers, it failed to connect during testing and likely requires a future firmware update.
Which Party Speaker Should You Buy?
Buy the Sony ULT Tower 7 ($650) if sound quality, chest-thumping bass, and maximum volume are your top priorities, or if you are a DJ/pro user who needs XLR and RCA connectivity for a mixer. It is heavier and harder to roll around without a telescopic handle, and the light show is tamer, but its 3-way driver system (with dedicated mids and quad tweeters) and 30-hour battery simply outperform JBL where it counts most.
Buy the JBL PartyBox 330 ($630) if you want the ultimate all-around consumer party speaker. It is 12 pounds lighter than the Sony, rolls effortlessly like a suitcase, puts on a show-stopping light display, supports two mics out of the box, and adds an optical port so it can double as a TV speaker.
Buy the JBL PartyBox 320 ($500) if you want the smartest value in the JBL lineup. Unless you specifically need the 330's optical TV input or USB-C charging port, the 320 gives you the exact same portability and battery life, retains superior physical control buttons, and actually delivers a cleaner, less overly warm sound signature than the 330 for $130 less.
Frequently Asked Questions (FAQ)
Does the Sony ULT Tower 7 sound better than the JBL PartyBox 330?
Yes. While both speakers sound great, the Sony ULT Tower 7 features dedicated mid-range drivers, four tweeters, and a downward-firing bass exhaust port. This 3-way acoustic setup gives the Sony noticeably cleaner vocal clarity, wider instrument separation, deeper bass, and a higher maximum volume than the 2-way JBL PartyBox 330 and 320.
What is the difference between the JBL PartyBox 330 and JBL PartyBox 320?
The JBL PartyBox 330 adds a top control screen, a USB-C port for device charging, and an optical audio input for connecting to a TV. However, the older PartyBox 320 features more durable physical control buttons, costs roughly $130 less on sale, and has a slightly crisper, more balanced sound profile compared to the warmer tuning on the 330.
Can you pair the Sony ULT Tower 7 with a JBL PartyBox using Auracast?
No. Even though both brands utilize Auracast wireless technology, they are locked to their respective ecosystems. The JBL PartyBox 330 and 320 will only pair with Auracast-enabled JBL speakers, while the Sony ULT Tower 7 pairs with compatible Sony speakers like the ULT Tower 5 and Tower Max.
Are the batteries replaceable on the Sony ULT Tower 7 and JBL PartyBox 330?
Yes, all three speakers have replaceable batteries. The JBL PartyBox 330 and 320 use a tool-free, quick-swap JBL Battery 400 pack (also shared with the Xtreme 4 and Xtreme 5), though official JBL batteries are expensive. The Sony ULT Tower 7 requires a screwdriver to access its battery compartment, but it uses standard, affordable batteries that are inexpensive to buy online.
Which speaker is better for karaoke and plugging in microphones?
For simple plug-and-play karaoke, the JBL PartyBox 330 and 320 are easier to use because they include two quarter-inch inputs for dual wired mics and support JBL's optional EasySing wireless microphones with AI vocal removal. The Sony ULT Tower 7 only includes a single quarter-inch mic jack (requiring an external mixer plugged into its XLR or RCA ports if you want multiple wired mics), though Sony does include a basic vocal-removal feature inside its companion app.
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If you’re looking for a Portable box speaker, then the JBL Partybox 330 is perhaps the most popular option out there. Now I do have my critiques about this speaker… but still you can’t go wrong with the JBL partybox 330. And even in 2026 and 2027, I think the JBL Partybox 320 is still a great speaker. However, we now have the Sony ULT Tower 7… now I also have my critiques about this speaker… but if you’re looking for the best sound quality, then I highly recommend the Sony ULT Tower 7. But in this video, we’re going to compare the Sony ULT Tower 7 to both the JBL partybox 330 and JBL Partybox 320 and lets see which one is right for you.
Regarding pricing, the Sony ULT Tower 7 has a retail price of $650, the JBL Partybox 330 has a retail price of $630 and the JBL partybox 320 can routinely be found on sale for $500. Now I also expect both the Sony ULT Tower 7 and the JBL partybox 330 to go on sale on a regular basis, the Sony more so than the JBL. But nonetheless if you want to pick any of these speakers up they’ll be linked down below, or you can always press on the YouTube shopping button. And if you want to further support the channel then you can always watch some of the related videos in the description below.
So first we have to talk about design, cause these speakers are very different from one another. The Sony ULT Tower 7 is noticeably larger and heavier than both the JBL Partybox 330 and the JBL partybox 320. The Sony ULT Tower 7 weighs in at 50 pounds where as JBL’s speakers weigh in at 38 pounds. Now the Tower 7 does have built in wheels so in theory you should be able to roll this speaker around… however since this speaker lacks a telescopic handle like with either of JBL’s speakers, Sony’s speaker isn’t as easy to lug around like with either the Partybox 330 or Partybox 320.
However when it comes to durability, all of these speakers have a mostly plastic body with a thin metal grill on the front. However the plastic and gill found on the Sony does feel more durable. Also all of these speakers are rocking an IPX4 rating so some water isn’t going to be a problem for any of these speakers just as long as you keep the port panel on the back closed. But then there are the control buttons on these speakers, like I mentioned in the full review, I don’t like the new screen on the top of the 330. Its not as easy to use like with physical buttons and I fear that it can get damaged easily. Where as both the 320 and Tower 7 have physical buttons, which is just nicer. And I do want to quickly mention that with both of JBL’s speakers, they do have a top hat mount on the bottom so you can elevate these speakers if you want. Where as the Sony doesn’t, but since this speaker weighs in at 50 pounds, I don’t think you would want to put it on a mount.
But then there are the light features on these speakers… and well, I do think Sony’s light feature looks better here compared to what they had before… but clearly you can see that this light feature isn’t as impressive or as dynamic as the light feature found on JBL’s speakers. Plus with these JBL speakers you can also build out their light features if you want. However, if you do decide to use the light feature on any of these speakers, that is going to take it toll on the battery life.
Now when it comes to battery life, the JBL Partybox 330 and 320 are the same. Both of these speakers have advertised battery life of 18 hours, however this advertise battery life of 18 hours is with this speaker playing at 50% volume which is an already really good volume for when you're hosting a backyard party or maybe a food truck… but that’s with the light feature turned off and with the bass boost feature turned off as well.
Where as with the Sony ULT Tower 7 has an advertised battery life of 30 hours, and that’s with this speaker playing at 50 percent volume and with the ULT feature turned on but with the light feature turned off. and with the light feature turned on its good for about 15 hours, which is still very good, plus 50% volume on this speaker is already a very good listening volume cause this speaker gets very loud. But in general, the Sony does have a longer lasting battery than both of JBL’s speakers.
Now with all of these speakers you can swap out the battery if you want or need to. However with JBL’s speakers it is very easy to take these batteries out and you can mix and match batteries between your 330 and 320, or JBL Xtreme 5 or Xtreme 4 cause they are also using the same JBL 400 battery. Where as with the Sony, in order to get to its battery you are going to have to use a screw driver. But the important thing here is, you can replace this battery with any battery that you can easily find online and they’re much more affordable. And the Sony ULT 5 field is also using the same battery, just one instead of two. Where as with JBL’s speakers, if you want to replace their batteries, then JBL will try to sell you their branded batteries… and if you were to use Non JBL batteries, then JBL is going to be very sad.
But overall, with both of JBL’s speakers, it very easy to swap out your batteries if you want or need to, where as with Sony’s speaker, you can swap them out if you need to but it does require more work. But the important thing is, being able to swap out your batteries is great for the life of your investment… but with the JBL you are paying a premium for convince.
Now with all of these speakers if you were to use them while they are plugged in you are going to get a performance boost out of them, they’re all going to get louder and they are all going to have more bass. However with both of JBL’s speakers they are both using the more common double barrel AC port, and this cable comes included with a lot of other products. Where as with the Tower 7, Sony changed over to their square port… so with the Sony you are going to have to be mindful of this cable.
But now lets talk about connectivity cause there is a lot going on here. Now with all of these speakers they can be connected to 2 devices at the same time so you and a friend can both be DJ. And latency is not an issue for these speakers so you can use them to watch videos with on your phone.
But when it comes to the ports on these speakers, therye all different. Now both of JBL’s ports are very consumer friendly. They both have an audio jack so you can use them with a wired connection that way and they both have an audio out jack, so you can always daisy chain either of these two speakers up to any other speaker and get them to play in sync regardless of size or brand. But the upgrade than 330 has over the 320 as that this speaker also has a USB C port so you can charge your own devices and it also has an optical port, so you can easily connect this speaker up to your TV and use it as a soundbar.
Where as with the Sony ULT Tower 7, this speaker doesn’t have an optical port, which is ironic cause this is something that JBL copied from Sony… but now sony removed it. The Tower 7 also doesn’t have an audio jack or an audio out jack… but it does have a USB C port like the 330 and it also has a USB A port… which I don’t think is super useful in 2026. However the Tower 7 is aimed more towards pros that might want to DJ with their speaker cause the Tower 7 has both an RCA line in and an XLR line in and out. So you can easily connect the tower 7 up to a mixer and you can also daisy chain other speakers via the XLR line out. However, do keep in mind that these XLR ports don’t have bus power, so you can’t plug in a mic, you’re going to need a mixer. And if you really need to use an audio jack connection with this speakers then you can always get an RCA adaptor.
But then theres the microphone on these speakers… the Sony ULT Tower 7 has a single 3 quarter inch input so you can plug in a wired mic, where as both of JBL’s speakers you can plug in 2 wired mics without needing a mixer like you’ll need with the Sony if you want to use it with 2 or more wired mics. Or you can always use these speakers with wireless microphones.
Now JBL has 2 wireless microphones to choose from. You have your universal partybox mics which plug in via your three water inch input and they’ll work with any speaker or mixer out there… or you can also get JBL’s easy sing mics, but these mics will only work with select JBL speakers. However, the Easy sing mics also get you an AI vocal removal tool, which is great tif you plan on doing lots of kakroke.
Now, Sony’s ULT Tower 7 does come included with a Vocal removal tool if you open up the app, however, Sony’s included vocal removal tool isn’t as potent as JBL’s easy sing mic system. However, unless you get JBL’s easy sing mics, then you Partybox 330 or 320 does not have a built in vocal removal tool like the Sony. But overall, JBL’s port panel on both the 330 and 320 is more more consumer friendly. You can plug in 2 wired mics or you can get up to a total of 6 wireless microphones working with either JBL speaker, you can daisy chain them up and with the 330 you can connect it to your tv. Where as with the Sony Tower 7… this speaker is better geared towards as pro that is going to use those XLR ports and they are going to use the Tower 7 with a mixer. And if you have a laptop and a mixer, you’re going to have a better vocal removal tool.
But now lets talk about sound, cause this is where the Sony Tower 7 shines. When it comes to speaker set up, both the JBL partybox 320 and 330 have dual frontward firing woofers with an exhaust port that shoots out the back and dual frontward firing tweeters. And in general this is a very standard speaker set up. Where as with the Sony ULT Tower 7, this speaker has a more unique set up cause it has a single frontward firing woofer with an exhaust port that shoots downwards, dual frontward firing mid range drivers, which is something JBL just doesn’t have and it has a total of 4 tweeters. Two that shoot out the front and two that shoot out the back. Now the tower 7 also has its ULT button, ULT 1 gets you more bass and ULT 2 gets you more bass and more sound pressure. Where as with the Partyboxes, you have bass boost. And I think deep is best cause punchy muddles the rest of your music. But now we’re going to jump into the soundtest. All of these speakers are playing at 75% volume while unplugged.
Sound test
So when it comes to sound quality, I think the Sony ULT Tower 7 is the clear winner here. Thanks to the mid range drivers, plus the 4 tweeters on this speaker, the Sony ULT Tower 7 easily sounds more open and has better defined vocals than both of JBL’s speakers. But also, thanks to the downward firing exhaust port, the ULT Tower 7 also has more and cleaner bass than both of JBL’s speakers… but more importantly, the bass doesn’t overpower the mids. Now don’t get me wrong, both the JBL Partybox 330 and 320 sound good, however the Tower 7 does have superior instrument seperation and bass. But like I mentioned in the full review, I still think the JBL partybox 320 sounds better than the JBL partybox 330. For some reason the 330 does lean towards a warmer sound signature compared to the 320. And then there’s the max volume performance on these speakers, now I think all of these speakers are good for a 20 to 30 person party. However the Sony ULT Tower 7 does get louder and it sounds more potent than both of JBL’s speakers. And like I mentioned earlier, if you were to use all of these speakers while they are plugged in, you are going to get a performance boost out of them, they are going to get louder and they are going to have more bass. But still the Sony Tower 7 still easily out performs both of JBL’s speakers. So overall, the Sony might not look as good or be as easy to use as both of JBL’s speakers… but the Sony ULT Tower 7 is the one to get if you want the better sound quality, more bass and higher max volume.
But finally lets talk about pairing these speakers up with other speakers. Now with all of these speakers, if you have two of the exact same speakers then you can wirelessly pair them up and get them to play in left and right stereo mode, but with they have to be two of the exact same speakers. You can not get a 330 and 320 and get them to play in stereo mode, they’ll only play in sync.
now both of these speakers are using aura cast, however these Sony speakers won’t pair up to JBL’s speakers. However with the Partybox 330 and 320, you can pair them up to other JBL speakers that are also using aurcast like lets say a JBL Partybox encore 2, or to a Partybox 120, 130, 320, 330, 520, 720 or to an ultimate and get them to all play in sync… or you can also pair them up to any of JBL’s smaller more portable speakers that are also using aura cast like lets say a JBL Boombox 4, Xtreme 5, Xtreme 4, Charge 6, flip 7, clip 5, a grip or Go 5 and get them to play in sync as well.
However you can not pair up your Partybox 330 or 320 up to any of JBL’s older speakers that are using Partyboost, and you can not pair up your 330 up to any of JBL’s older Partyboxes that are sing TWS. But regardless, JBL has a large ecosystem of Speakers to choose from.
Where as with the Sony Tower 7, you can pair it up to either a tower 5 or a Tower Max, and they actual pair up surprisingly fast… and the connection is also a lot more stable than compared to JBL’s aura cast connection. Now Sony says that you can pair your Tower 7 up to Sony’s older speakers that are using Partyconnect, however I haven’t been able to get them to work… so maybe we’re waiting for a firmware update.
But with all of that being said, both the JBL partybox 330 and Sony ULT Tower 7 are great speakers, however they are very different. I think the JBL Partybox 330 is the better speaker for the consumer… this speaker is smaller and lighter, its easier to roll this speaker around, the light feature is more impressive, and the port panel is very versatile. Where as the Sony ULT Tower 7 is better suited for the Pro, someone that actually going to use it with a mixer. But more importantly, the Sony ULT Tower 7 sounds better and gets louder than both of JBL’s speakers. Thanks to the Mid range drivers and quad tweeters, the Sony ULT Tower 7 gives you much better instrument separation and detail in the vocals… but also the Sony has a lot more kick in its bass thanks to the downward firing exhaust port. And also, the Sony ULT Tower 7 just gets louder. I still think the JBL Partybox 330 is going to be the default option for a lot of people, but I simply prefer the Sony ULT Tower 7.