Earfun Uboom X vs JBL Partybox Encore (August 2026)

Short answer: the Earfun Uboom X. It ranks #1 of 70 boombox speakers at $128; the JBL Partybox Encore ranks #6 and costs $230, so there is not much of a tradeoff to weigh.

The case for the Earfun Uboom X: Tuned by Oluv and he knocked it out of the park again. The tradeoff: The out of the box 0.33 firmware and EQ sounds horrible.

What the JBL Partybox Encore gets right: A great sounding somewhat boosted bass party speaker. Set against that: Only 10 hours of battery at medium volume.

One note: the Earfun Uboom X is discontinued, but it still ranks #1 of 70 boombox speakers, ahead of most of what is still sold new, so it is worth considering used.

Buy the Earfun Uboom X if the ranking matters more than the price. Buy the JBL Partybox Encore if the price matters more than the ranking.

Specifications Side By Side

	Earfun Uboom X	JBL Partybox Encore
Price	$128 Discontinued	$230
Ranked	#1 of 70 in Boombox Size Portable Bluetooth Speakers	#6 of 70 in Boombox Size Portable Bluetooth Speakers
App	Yes (Earfun Audio app)	Yes (JBL PartyBox app)
Aux Input	Yes	Yes
Aux Latency	16ms	17ms
Bass Extension (-10dB)	~38Hz	38Hz
Battery Life	30 hours (Manufacturer specified)	6 hours (Manufacturer specified)
Bluetooth Codecs	AAC, SBC	SBC
Built in Microphone	Yes	No
EQ	Yes (App EQ)	Yes (3 band App EQ)
IP Rating	IP67	IPX4
Bluetooth Latency	SBC Video mode 48ms, AAC Video mode 128ms, SBC 112ms, AAC 176ms	100ms
Max Volume	110dB	110dB
Party Mode	Yes (Up to 50 speakers)	No
Power Bank	Yes	Yes
Power Input	USB-C	AC Power cord
TWS	Yes	Yes
Weight	9 lbs / 4.1 kg	13.9 lbs / 6.3 kg
Stereo	Yes	Yes
USB Playback	No	Yes
FM Tuner	No	-
Bluetooth Version	5.3	5.1
Output Power	80W	100W RMS
Dimensions	15.75" x 5.91" x 8.46" (400 x 150 x 215 mm)	10.87" x 12.87" x 11.54" (276 x 327 x 293 mm)
Drivers	2x 102mm (4") woofers + 2x 20mm tweeters	135mm woofer + 2x 20mm tweeters
Discontinued	Yes	-
Wireless Microphones	-	Yes 2 Included

The Two Speakers In Full

Earfun Uboom X: $128 Discontinued Myearfun Amazon

Pros: Tuned by Oluv and he knocked it out of the park again. Deeper bass than the Stormbox Blast. Extremely neutral, possibly the best of any modern Bluetooth speaker slightly behind the Vifa Helsinki. This is the only speaker that sounds correct at every single volume level due to Oluv’s individual EQ settings at each volume level. Other speakers will need a different EQ at each volume level. Amazing sounding at low levels as it boosts bass and treble at low levels to account for the equal-loudness contour. Just considering the midrange and treble, this speaker is better sounding than the Earfun Uboom L.

Cons: The out of the box 0.33 firmware and EQ sounds horrible. Some people have mentioned sound interruption issues when using 2 in TWS, I don’t have this issue with my Pixel 7 Pro, try disabling AAC in that case. Discontinued.

Setup: Please update it using the Earfun app (Android or iOS) and select an Oluv EQ. The Earfun app has sound profiles created by Oluv for Studio, Indoor, Indoor+, Outdoor, Outdoor+, BOOM xxX, and Ground 0 which are all fantastic. Oluv has a newer firmware pack that brings it up a few more notches of neutral

App	Yes (Earfun Audio app)
Aux Input	Yes
Aux Latency	16ms
Bass Extension (-10dB)	~38Hz
Battery Life	30 hours (Manufacturer specified)
Bluetooth Codecs	AAC, SBC
Bluetooth Latency	SBC Video mode 48ms, AAC Video mode 128ms, SBC 112ms, AAC 176ms
Bluetooth Version	5.3
Built in Microphone	Yes
Dimensions	15.75" x 5.91" x 8.46" (400 x 150 x 215 mm)
Discontinued	Yes
Drivers	2x 102mm (4") woofers + 2x 20mm tweeters
EQ	Yes (App EQ)
FM Tuner	No
IP Rating	IP67
Max Volume	110dB
Output Power	80W
Party Mode	Yes (Up to 50 speakers)
Power Bank	Yes
Power Input	USB-C
Stereo	Yes
TWS	Yes
USB Playback	No
Weight	9 lbs / 4.1 kg

Check current price at Amazon ($128) →Check current price at Myearfun →

JBL Partybox Encore: $230 Walmart

Pros: A great sounding somewhat boosted bass party speaker. 2 included wireless microphones.

Cons: Only 10 hours of battery at medium volume. Poor water rating.

App	Yes (JBL PartyBox app)
Aux Input	Yes
Aux Latency	17ms
Bass Extension (-10dB)	38Hz
Battery Life	6 hours (Manufacturer specified)
Bluetooth Codecs	SBC
Bluetooth Latency	100ms
Bluetooth Version	5.1
Built in Microphone	No
Dimensions	10.87" x 12.87" x 11.54" (276 x 327 x 293 mm)
Drivers	135mm woofer + 2x 20mm tweeters
EQ	Yes (3 band App EQ)
IP Rating	IPX4
Max Volume	110dB
Output Power	100W RMS
Party Mode	No
Power Bank	Yes
Power Input	AC Power cord
Stereo	Yes
TWS	Yes
USB Playback	Yes
Weight	13.9 lbs / 6.3 kg
Wireless Microphones	Yes 2 Included

Check current price at Walmart →

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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.