JBL Partybox Stage 320 vs Turtlebox Grande

Last updated: September 8, 2026

Short answer: the Stage 320, for nearly every use case. It ranks #2 out of 75, well ahead of the Turtlebox Grande at #56, and costs $180.05 less despite being a party speaker rather than a rugged outdoor unit.

The Grande’s own cons are harsh about its actual output. Its notes say it will never hit its claimed 126dB at a proper one meter measuring distance given its real 100W output, and despite stepping up to a 10 inch woofer, they describe it as having barely any bass for a driver that size, calling it overpriced and not worth it. Its pros do highlight genuine strengths for off-grid use: an IP67 submersible, crush-proof ABS shell and a 158Wh battery rated for about 3 days of playback.

The Stage 320 is both better reviewed and more capable as a party speaker. Its pros cite a convenient handle and wheels, customizable color lighting, a removable battery, and notably that it keeps more bass than JBL’s own 310 at high volume. Its only real knocks are slight sibilance in the treble at full blast and its sheer size. It’s also rated IPX4 against splashes, though not built for full submersion like the Grande.

Buy the Stage 320 if you want a better rated speaker with genuine party features (lighting, wheels, removable battery) for less money.

Buy the Turtlebox Grande only if you specifically need a fully submersible speaker with multi-day battery life for extended off-grid use, and can accept its own cons describing weak bass for a 10 inch woofer.

If water resistance matters to you, the Turtlebox Grande at IP67 (brief submersion) holds up far better than the JBL Partybox Stage 320 at IPX4 (splashing).

Buy the JBL Partybox Stage 320 at Amazon ($549.95) →Buy the Turtlebox Grande at Amazon ($730.00) →

JBL Partybox Stage 320 vs Turtlebox Grande

Specifications Side By Side

JBL Partybox Stage 320 Turtlebox Grande
Price$549.95$730.00
Ranked#2 of 51 in Party Size Portable Bluetooth Speakers#56 of 75 in Boombox Size Portable Bluetooth Speakers
AppYesNo
Aux InputYesYes
Battery Life18 hours (Manufacturer specified)25 hours (Manufacturer specified)
Bluetooth CodecsSBCSBC
Bluetooth Version5.45.4
Drivers2x 6.5" woofers, 2x 25mm tweeters1x 10" (254mm) woofer + 1x 1.25" (32mm) titanium tweeter
EQYes (5 band)No
Guitar InputYes-
IP RatingIPX4IP67
Microphone InputYes (Karaoke mode with echo effect)-
Party ModeYes (Auracast)Yes (Turtlebox Party Mode)
Power BankYes (USB-A, 5V/2.1A)Yes (USB-C)
Power InputAC Power cordUSB-C
Removable BatteryYes-
StereoPartiallyYes
OmnidirectionalNoNo
TWSYesYes
USB PlaybackYesNo
Weight36.4 lbs / 16.5 kg18.8 lbs / 8.53 kg
Output Power240W86W
Digital Aux InputNoNo
Bass Extension (-10dB)-~55Hz
Built in Microphone-Yes
MicroSD Playback-Yes
Dimensions-14" x 8.4" x 11.5" (355.6 x 213.4 x 292.1 mm)
Buy the JBL Partybox Stage 320 at Amazon ($549.95) →Buy the Turtlebox Grande at Amazon ($730.00) →

Other pairings from the same speaker class worth checking:

Prices on this page were last checked September 8, 2026 at 6:02 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 Stage 320: $549.95 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 310 at high volume. Removable battery.

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

Full JBL Partybox Stage 320 review and specifications →

AppYes
Aux InputYes
Battery Life18 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Version5.4
Digital Aux InputNo
Drivers2x 6.5" woofers, 2x 25mm tweeters
EQYes (5 band)
Guitar InputYes
IP RatingIPX4
Microphone InputYes (Karaoke mode with echo effect)
OmnidirectionalNo
Output Power240W
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
Check current price at Amazon ($549.95) →Check current price at B&H Photo Video →Search eBay for JBL Partybox Stage 320 →

Turtlebox Grande: $730.00 Amazon eBay

Turtlebox Grande ranking card

Pros: 10-inch woofer. IP67 submersible shell with crush-proof ABS exterior. 158Wh battery provides ~3 days of playback. Bluetooth 5.4, party mode (100+ speakers).

Cons: They pretty much lie about all their specs and sound just okay in all youtube sound samples. Only 100w will never hit 126db at a reasonable measuring distance. Putting your db meter right against the speaker doesn’t count, 1 meter distance is the standard. Barely any bass for a 10” woofer. Overpriced and not worth it.

Full Turtlebox Grande review and specifications →

AppNo
Aux InputYes
Bass Extension (-10dB)~55Hz
Battery Life25 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Version5.4
Built in MicrophoneYes
Digital Aux InputNo
Dimensions14" x 8.4" x 11.5" (355.6 x 213.4 x 292.1 mm)
Drivers1x 10" (254mm) woofer + 1x 1.25" (32mm) titanium tweeter
EQNo
IP RatingIP67
MicroSD PlaybackYes
OmnidirectionalNo
Output Power86W
Party ModeYes (Turtlebox Party Mode)
Power BankYes (USB-C)
Power InputUSB-C
StereoYes
TWSYes
USB PlaybackNo
Weight18.8 lbs / 8.53 kg
Check current price at Amazon ($730.00) →Search eBay for Turtlebox Grande →