JBL Boombox 3 vs Onn Medium Party Speaker Gen 2

Last updated: October 27, 2026

Short answer: the JBL Boombox 3 for better sound quality, the Onn Medium Party Speaker Gen 2 for the lower price. The JBL Boombox 3 ranks #27 of 112 boombox speakers, rated 3.8/5, at $349.95. The Onn Medium Party Speaker Gen 2 ranks #65, rated 3.1/5, at $90, $259.95 cheaper.

JBL Boombox 3 vs Onn Medium Party Speaker Gen 2

The JBL Boombox 3 is the better-sounding pick. A loud, fully waterproof boombox with a dedicated subwoofer, a 24 hour battery and power bank charging. It plays in stereo from a single unit, unlike the Onn Medium Party Speaker Gen 2. Watch for: Dips in mid bass range which makes the bass sound undefined, bass boosted, peaky at 700Hz, not quite as good mids and treble as the Blast.

The Onn Medium Party Speaker Gen 2 is the lighter pick. An affordable waterproof party speaker with a big woofer, lights, a karaoke mic input and FM radio. At 11 lbs (5 kg) it weighs noticeably less than the JBL Boombox 3 at 14.8 lbs (6.7 kg). It has a microphone input for karaoke or announcements, which the JBL Boombox 3 lacks. Watch for: Lacking detail compared to the Onn Large Party gen 2 and not as deep of bass.

Buy the JBL Boombox 3 if sound quality is the priority over the price, or the Onn Medium Party Speaker Gen 2 if the price is the priority over sound quality.

Still deciding? The full Portable Bluetooth rankings cover every ranked option.

JBL Boombox 3

A loud, fully waterproof boombox with a dedicated subwoofer, a 24 hour battery and power bank charging.

Battery: 24 hrWaterproof: IP67Bass to: 43 HzWeight: 14.8 lbs
Amazon $349.95 eBay
$349.95
Onn Medium Party Speaker Gen 2

An affordable waterproof party speaker with a big woofer, lights, a karaoke mic input and FM radio.

Battery: 20 hrWaterproof: IPX7Weight: 11 lbsStereo: No
Walmart $90 eBay
$90

Prices on this page were last checked October 31, 2026 at 7:11 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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Specifications Side By Side

JBL Boombox 3 Onn Medium Party Speaker Gen 2
Price$349.95$90
Ranked#27 of 112 in Boombox Size Portable Bluetooth Speakers#65 of 112 in Boombox Size Portable Bluetooth Speakers
Aux InputYesYes
Aux Latency25ms-
Bass Extension (-10dB)43Hz-
Battery Life24 hours (Manufacturer specified)20 hours (Manufacturer specified)
IP RatingIP67IPX7
Bluetooth Latency100ms-
Maximum SPL110dB (measured by Alan Ross Reviews)-
Party ModeYes (PartyBoost up to 100 speakers)Yes (Party Sync Mode)
Power InputAC Power cableAC Power cord
StereoYesNo
OmnidirectionalNoNo
TWSYesYes
Weight14.8 lbs (6.7 kg)11 lbs (5 kg)
BluetoothYesYes
Bluetooth CodecsSBCSBC
AppNoNo
EQNoNo
Power BankYes (USB-A)Yes (USB-A, 5V/2.1A)
USB PlaybackNoNo
Built-in MicrophoneNoNo
FM TunerNoYes (16 presets)
Microphone InputNoYes (Karaoke mode with echo effect)
MicroSD PlaybackNo-
Amplifier Power180W AC / 136W battery50W RMS / 200W peak
Dimensions19” x 10.1” x 7.9” (482 x 257 x 200 mm)9.6” x 10.9” x 15.1” (244.1 x 277.9 x 383 mm)
Drivers1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters8” (203mm) woofer + tweeters
Digital Aux InputNoNo
Bluetooth Version5.3-
StrapNo-
Lights-Yes

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