JBL Partybox Stage 320 vs 310: Bass, Battery & Upgrade

Last updated: September 19, 2026

Short answer: the two sound very close, so buy on features rather than sound quality alone. They rank #4 and #3 of 39 party speakers, and the 310’s own notes call it very close to the Stage 320 in performance.

JBL Partybox 310 vs JBL Partybox Stage 320

The 310 still wins on raw bass. Its pros describe it as having the absolute deepest bass of any battery powered speaker and the most balanced sound in the class, reaching down to 32Hz. The Stage 320 counters by keeping more bass than the 310 at high volume, since the 310 can shelve down under strain, but the Stage 320’s own cons note it gets slightly sibilant in the treble at full blast, something the 310 does not report.

What the Stage 320 adds that the 310 does not:

One note: the JBL Partybox 310 is no longer sold new, but at #4 of 39 party speakers by sound quality it still outranks most current models, so used is worth considering.

Everything else matches: both run 240W through dual 6.5 inch woofers and dual tweeters, both include guitar and karaoke microphone inputs with echo effect, both offer 18 hours of battery life, and both are large enough that neither is meant to be carried far.

Buy the JBL Partybox Stage 320 if you want Auracast, a swappable battery, and slightly cleaner treble at high volume, and don’t mind paying $0 more.

Buy the JBL Partybox 310 used if you can find one, since its deep bass and balanced sound still hold up even though it is no longer sold new.

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

Specifications Side By Side

JBL Partybox 310 JBL Partybox Stage 320
Price$499.95 Discontinued$499.95
Ranked#4 of 39 in Party Size Portable Bluetooth Speakers#3 of 39 in Party Size Portable Bluetooth Speakers
AppYesYes
Aux InputYesYes
Bass Extension (-10dB)32Hz-
Battery Life18 hours (Manufacturer specified)18 hours (Manufacturer specified)
Bluetooth CodecsSBCSBC
Charging Time3.5 hours-
EQYes (3 band)Yes (5 band)
Guitar InputYesYes
IP RatingIPX4IPX4
Microphone InputYes (Karaoke mode with echo effect)Yes (Karaoke mode with echo effect)
Party ModeNoYes (Auracast)
Power BankYes (USB-A, 5V/2.1A)Yes (USB-A, 5V/2.1A)
Power InputAC Power cordAC Power cord
StereoPartiallyPartially
OmnidirectionalNoNo
TWSYesYes
USB PlaybackYesYes
Weight37.5 lbs (17 kg)36.4 lbs (16.5 kg)
Amplifier Power240W240W
Drivers2x 6.5" (165mm) woofers + 2x 2.5" (65mm) tweeters2x 6.5" woofers, 2x 25mm tweeters
DiscontinuedYes-
Digital Aux InputNoNo
LightsYesYes
WheelsYesYes
Dimensions12.8"H x 27.1"W x 14.5"D (325.6 x 687.7 x 367.8 mm)13.2"H x 26.3"W x 15.2"D (335 x 669 x 385 mm)
Bluetooth Version5.15.4
Removable Battery-Yes

More top alternatives to JBL Partybox Stage 320:

Prices on this page were last checked September 23, 2026 at 11:24 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 Partybox 310: $499.95 Discontinued Amazon eBay

JBL Partybox 310 ranking card

Pros: Absolute deepest bass of any battery powered speaker, most balanced sound in the class, handle and wheels are convenient. Increase treble one step in the app EQ to make it more neutral. Customizable color lighting modes. Very close to the JBL Partybox Stage 320 in terms of performance. Measured bass extension of 32Hz (-10dB).

Cons: Very large. Discontinued.

Amplifier Power240W
AppYes
Aux InputYes
Bass Extension (-10dB)32Hz
Battery Life18 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Version5.1
Charging Time3.5 hours
Digital Aux InputNo
Dimensions12.8"H x 27.1"W x 14.5"D (325.6 x 687.7 x 367.8 mm)
DiscontinuedYes
Drivers2x 6.5" (165mm) woofers + 2x 2.5" (65mm) tweeters
EQYes (3 band)
Guitar InputYes
IP RatingIPX4
LightsYes
Microphone InputYes (Karaoke mode with echo effect)
OmnidirectionalNo
Party ModeNo
Power BankYes (USB-A, 5V/2.1A)
Power InputAC Power cord
StereoPartially
TWSYes
USB PlaybackYes
Weight37.5 lbs (17 kg)
WheelsYes

JBL Partybox Stage 320: $499.95 Amazon B&H Photo Video eBay

JBL Partybox Stage 320 ranking card

Pros: Handle and wheels are convenient. Customizable color lighting modes. Keeps more bass than the JBL Partybox 310 at high volume. Removable battery.

Cons: Slightly sibilant in the treble at full blast. Very large.

Amplifier Power240W
AppYes
Aux InputYes
Battery Life18 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Version5.4
Digital Aux InputNo
Dimensions13.2"H x 26.3"W x 15.2"D (335 x 669 x 385 mm)
Drivers2x 6.5" woofers, 2x 25mm tweeters
EQYes (5 band)
Guitar InputYes
IP RatingIPX4
LightsYes
Microphone InputYes (Karaoke mode with echo effect)
OmnidirectionalNo
Party ModeYes (Auracast)
Power BankYes (USB-A, 5V/2.1A)
Power InputAC Power cord
Removable BatteryYes
StereoPartially
TWSYes
USB PlaybackYes
Weight36.4 lbs (16.5 kg)
WheelsYes