About the JBL PartyBox 300
Bring the party
Bring the party
Serious about having fun? Bring a JBL PartyBox 300 to your next shindig. This big, rugged, 35-pound speaker will crank out your tunes with massive, hard-hitting sound to get people moving. And the PartyBox 300's three-mode light effects help set the mood.
If anyone wants to sing or play along with the music, the PartyBox has both guitar and microphone inputs. Stream tunes via Bluetooth from your smartphone or tablet. Or plug in a flash drive preloaded with your party mix.
Big sound indoors and out
The PartyBox 300 features two 6-1/2” woofers and three 2-1/4” tweeters for powerful, clear sound. A rear-firing port reinforces the bass. And there's also selectable Bass Boost if you want to make your tunes thump even more.
Want bigger sound? You can pair two PartyBox 300 speakers together for either two-channel stereo or just to double the volume. The speakers can be paired wirelessly via Bluetooth, or they can be connected with RCA cables.
You might use a Bluetooth phone or tablet as the music source most of the time, but you have other options, too. The stereo RCA input lets you connect a CD player or a turntable with built-in phono preamp. A USB port on the back lets you plug in flash drives.
There are two 1/4” input jacks — one for a microphone, the other for a guitar. Volume control knobs let you set their levels independently. These inputs let you either sing or play along to music already playing through the PartyBox 300. Hello, karaoke night!
Portability and power
Integrated carry handles make the PartyBox 300 easier to transport. (But at 35 pounds, it's one of the heaviest "portable Bluetooth speakers" we've ever seen.) The speaker has a built-in rechargeable battery that can deliver up to 18 hours of operation. You can use the speaker's USB port to charge your smartphone or tablet. And the PartyBox 300 comes with a detachable AC power cord, so you can keep the sound and light show going indefinitely.
Rolling (and rocking) on the river
Two of my favorite things in the world are music and camping. When I first saw and heard the JBL PartyBox 300 I knew that I had to have one. My friends were just as impressed when I showed up at our camping spot with my latest purchase.
We listen to a wide variety of music and all of our playlists sounded great through the PartyBox! With 250 watts of power (120 watts RMS) we rocked out while we relaxed by the river. The bass boost function really helped those deep bass notes rumble through our campsite.
After dark, we sat around the fire. There were surprised looks when I turned on the PartyBox's built-in light effects. With lights flashing in time to the music this Bluetooth speaker took our music to another level.
When my cell phone battery started dying, I just plugged it into the PartyBox's USB port. The music continued to play long after my cell phone would have died without the charging source in the speaker.
With 18 hours of battery life, the speaker kept the music playing as we talked and laughed well into the night. And with the added guitar and mic inputs, we could plug into the speaker and rock right along with the music playing.
While the JBL PartyBox 300 might not be for the serious audiophiles it is perfect for those who like their music loud and clear. I'm considering getting a second PartyBox 300 so that I can pair two of them together for true stereo listening. But for now, I am more than satisfied.
- Greg M., Crutchfield IT services specialist
- two 6-1/2" woofers, and three 2-1/4" tweeters
- frequency response: 45-20,000 Hz
- built-in Bluetooth
- light effects with three modes: Meter, Pulse, and Party
- pair two JBL PartyBox 300 speakers
- for two-channel stereo or for double volume
- connect wirelessly via Bluetooth, or wired via RCA stereo cables (not included)
- EQ settings and bass boost
- RCA stereo input and output
- stereo minijack input for portable devices
- two 1/4" input jack inputs for microphone and guitar
- independent volume controls
- USB port for flash drives and recharging smartphones and tablets
- splash-resistant ported cabinet
- integrated carry handles
- 10,400mAh built-in rechargeable lithium-ion battery lasts up to 18 hours
- detachable AC charging cable
- 12-1/4"W x 27-1/16"H x 12-1/2"D
- weight: 35 lbs.
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # JBLPARTYBOX300AM
What's in the box:
- Bluetooth portable speaker
- 5' AC power cord
- 12' DC cable
- Quick Start Guide
- Warranty Card
- Important Safety Instructions
JBL PartyBox 300 reviews
Fabulous speaker. Sounds crystal clear even at full volume. Love the "disco lights" when playing and with the 18 hours of playing with no cord, well , that is one awesome speaker for the pool, party, tailgating etc.
0 of 0 found this helpful
1 of 1 found this helpful
Great sound! Loud. Exactly what I was looking for. Using it for car camping. Highly recommend.
1 of 1 found this helpful
Great speaker, so convenient for outdoor events!
Pros: big, fun, great sound quality!
1 of 1 found this helpful
Amazing speaker, looks very nice and sounds amazing. The bass goes very deep and is strong, but retains a balanced sound with the mids and highs while having the JBL sound signature to keep it from sounding boring. Amazing and exceeds all expectations and more like every other JBL product I've bought.
Pros: Great balanced sound, deep strong bass, looks very nice
Cons: Not for audiophiles.
3 of 4 found this helpful
The Partybox 300 is not sounding as good as my RCF speakers but for $450 portable and light show it's worth it, hope JBL make cover to protect the speaker like RCF
Pros: Good sound, nice light show.
Cons: Heavy, 12v dc can only play music not charging the battery.
3 of 3 found this helpful
More details on the JBL PartyBox 300
JBL Signature Sound: The JBL PartyBox 300 is equipped with three 2.25" dome tweeters and dual 6.5" cone woofers powered by a built-in 120-watt (RMS)/240-watt (Peak) amplifier for dynamic JBL signature sound with clear highs and deep bass. There is rear-firing port and Bass Boost function which helps enhance the powered speaker's bass performance.
Bluetooth Audio Streaming: The JBL PartyBox 300 is equipped with built-in Bluetooth 4.2 with support for wireless audio streaming (A2DP) and playback control (AVRCP). You'll be able to stream stored music, music apps, and other audio content on Bluetooth source device (such as your smartphone, tablet, computer, or laptop) to the PartyBox 300. You'll also be able to control basic playback functions such as Play, Pause, & Skip from the speaker. You will continue to use your Bluetooth-enabled device for advanced music navigation and to view song/artist/album information.
Note: The JBL PartyBox 300 does not support Bluetooth hands-free communication for making and answering phone calls.
USB Port: The JBL PartyBox 300 features a USB (type-A) port for connection of a USB mass storage class (MSC) device, such as a USB thumbdrive. The PartyBox 300 supports playback of MP3, WMA, and WAV music files loaded onto a compatible USB MSC device formatted in FAT16 or FAT32. The USB port (rated at 5V/2.1A) can also be used to charge a USB-enabled portable devices, like your smartphone or tablet.
Note: The USB port does not support playback of Apple iOS or Android OS devices.
Dual Aux Inputs: The JBL PartyBox 300 is outfitted with dual Aux inputs, consisting of a 3.5mm input and stereo RCA input, for connection of an external audio device. There is also a stereo RCA output to daisy-chain two PartyBox speakers together for stereo sound.
Mic & Guitar Inputs: The JBL PartyBox 300 offers a 1/4" Mic and 1/4" Guitar input to really get your party started. The Mic and Guitar input each have an independent gain control.
Light Effects: The JBL PartyBox 300 features lighting effects to create a "party: experience. You can choose from 4 Light Modes - Meter, Pulse, Party, or Off.
Stereo Pairing: True Wireless Stereo uses Bluetooth to wirelessly link two PartyBox speakers together as a stereo pair. You can also create a stereo pair by daisy chaining two PartyBox speakers together using a wired RCA connection between one speaker's stereo RCA output and the other speaker's stereo RCA input for bigger sound. There is a L/R switch on the back of the speaker that lets you choose which speaker plays the left channel and which speaker plays the right channel.
Power Requirements: The JBL PartyBox 300 can be powered via 120V AC, 12V DC, or via its built-in battery. It includes a detachable 5' AC power cord which plugs into the back of the speaker and into an AC power outlet or surge protector (sold separately). It also includes a 12' DC cable that plugs into the back of the speaker and into the cigarette lighter port or 12-volt power port of your vehicle. The built-in rechargeable lithium-ion battery (1040mAH/7.2V) provides up to 18 hours of playback with 5 hours of charge time.
Mounting Options: The JBL PartyBox 300 can be positioned vertically or horizontally. For best sound quality always make sure two of the three tweeters are placed on the uppers side of the speaker enclosure.
Integrated Carry Handles: Two integrated carry handles make it easy to transport the JBL PartyBox 300 speaker.
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