JBL Boombox 4 vs JBL Xtreme 4

Last updated: September 26, 2026

These sit in different size classes, so this is not a straight ranking comparison. The JBL Boombox 4 ranks #20 of 76 boombox speakers by sound quality at $429.95; the JBL Xtreme 4 ranks #40 of 82 large speakers by sound quality at $309.95.

JBL Boombox 4 vs JBL Xtreme 4

What the JBL Boombox 4 does well: Pretty insane output capability for the size. Watch for: Pretty overpriced for the category.

The case for the JBL Xtreme 4: A rugged 2.1kg portable with IP67 protection, a replaceable battery, USB-C power-bank output, Auracast, stereo pairing and a useful 5-band app EQ. The catch: It cannot produce the deep rumble of a larger speaker, and bass compression increases near maximum volume.

Buy the JBL Boombox 4 at $429.95 if you want a boombox speaker. Buy the JBL Xtreme 4 at $309.95 if you want a large speaker instead.

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

Buy the JBL Boombox 4 at Amazon ($429.95) →Buy the JBL Xtreme 4 at Amazon ($309.95) →

Specifications Side By Side

JBL Boombox 4 JBL Xtreme 4
Price$429.95$309.95
Ranked#20 of 76 in Boombox Size Portable Bluetooth Speakers#40 of 82 in Large Size Portable Bluetooth Speakers
AppYesYes
Aux InputNoNo
Bass Extension (-10dB)41Hz-
Battery Life28 hours (Manufacturer specified)24 hours (Manufacturer specified)
EQYes (7 band)Yes (5 band)
IP RatingIP68IP67
Bluetooth LatencyAAC 144ms, SBC 48ms220ms
Maximum SPL115dB (measured by Alan Ross Reviews)106dB (measured by Alan Ross Reviews)
Party ModeYes (Auracast)Yes (Auracast)
Power InputAC Power cordUSB-C
Removable BatteryYesYes
StereoYesYes
OmnidirectionalNoNo
Weight13.2 lbs (5.98 kg)4.6 lbs (2.1 kg)
Bluetooth CodecsSBC, LC3, AACSBC
Bluetooth Version5.45.3
Built-in MicrophoneNoYes
Power BankYes (USB-C, up to 30W)Yes (USB-C)
TWSYesYes
Digital Aux InputYes (USB-C)No
USB PlaybackNo-
FM TunerNo-
Microphone InputNo-
MicroSD PlaybackNo-
Amplifier Power210W AC / 200W battery100W
Dimensions20.1” x 10.2” x 8.3” (510 x 260 x 210 mm)11.7” x 5.9” x 5.6” (297 x 149 x 141 mm)
Drivers2x 123mm woofers + 2x 20mm tweeters with passive radiators2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators
StrapNoYes (detachable shoulder strap)
Frequency Response-44Hz - 20kHz (Manufacturer specified)
Buy the JBL Boombox 4 at Amazon ($429.95) →Buy the JBL Xtreme 4 at Amazon ($309.95) →

How JBL Boombox 4 compares with other leading options:

Prices on this page were last checked September 26, 2026 at 11:14 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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The Two Speakers In Full

JBL Boombox 4: $429.95 Amazon B&H Photo Video eBay

JBL Boombox 4 ranking card

Older models: the JBL Boombox 3 (rated 3.8/5), the JBL Boombox 2 (rated 3.5/5) and the JBL Boombox (rated 2.9/5).

Pros: Pretty insane output capability for the size. IP68 protection and Auracast pairing with other current JBL speakers. Measured bass extension of 41Hz (-10dB).

Cons: Pretty overpriced for the category. Better than the Boombox 3 mostly because there are more 7 EQ bands instead of just 3 and it can be better tuned. Try Oluv’s EQ for it. Out of the box sounds worse than the Boombox 3. No Aux input.

Full JBL Boombox 4 review and specifications →

Amplifier Power210W AC / 200W battery
AppYes
Aux InputNo
Bass Extension (-10dB)41Hz
Battery Life28 hours (Manufacturer specified)
Bluetooth CodecsSBC, LC3, AAC
Bluetooth LatencyAAC 144ms, SBC 48ms
Bluetooth Version5.4
Built-in MicrophoneNo
Digital Aux InputYes (USB-C)
Dimensions20.1” x 10.2” x 8.3” (510 x 260 x 210 mm)
Drivers2x 123mm woofers + 2x 20mm tweeters with passive radiators
EQYes (7 band)
FM TunerNo
IP RatingIP68
Maximum SPL115dB (measured by Alan Ross Reviews)
MicroSD PlaybackNo
Microphone InputNo
OmnidirectionalNo
Party ModeYes (Auracast)
Power BankYes (USB-C, up to 30W)
Power InputAC Power cord
Removable BatteryYes
StereoYes
StrapNo
TWSYes
USB PlaybackNo
Weight13.2 lbs (5.98 kg)
Check current price at Amazon ($429.95) →Check current price at B&H Photo Video →Search eBay for JBL Boombox 4 →

JBL Xtreme 4: $309.95 Amazon B&H Photo Video eBay

JBL Xtreme 4 ranking card

Newer model: the JBL Xtreme 5, rated 4.6/5.

Pros: A rugged 2.1kg portable with IP67 protection, a replaceable battery, USB-C power-bank output, Auracast, stereo pairing and a useful 5-band app EQ. Independent reviews find the midrange detailed and the sound clear, punchy and refined for outdoor use; it also reaches a strong 106dB maximum level and has excellent real-world battery life.

Cons: It cannot produce the deep rumble of a larger speaker, and bass compression increases near maximum volume. The front-facing layout has only modest off-axis consistency, Bluetooth latency is high for video, and the default balance benefits from EQ adjustment. There is no aux input, so wired sources are not supported. Out of the box it leans bass-boosted, with a dip between the upper bass and midrange that EQ cannot fix, and it pushes the upper mids and treble at high volume. It is also expensive.

Full JBL Xtreme 4 review and specifications →

Amplifier Power100W
AppYes
Aux InputNo
Battery Life24 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Latency220ms
Bluetooth Version5.3
Built-in MicrophoneYes
Digital Aux InputNo
Dimensions11.7” x 5.9” x 5.6” (297 x 149 x 141 mm)
Drivers2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators
EQYes (5 band)
Frequency Response44Hz - 20kHz (Manufacturer specified)
IP RatingIP67
Maximum SPL106dB (measured by Alan Ross Reviews)
OmnidirectionalNo
Party ModeYes (Auracast)
Power BankYes (USB-C)
Power InputUSB-C
Removable BatteryYes
StereoYes
StrapYes (detachable shoulder strap)
TWSYes
Weight4.6 lbs (2.1 kg)
Check current price at Amazon ($309.95) →Check current price at B&H Photo Video →Search eBay for JBL Xtreme 4 →