JBL Partybox Encore 2 vs Diamondboxx M3

Last updated: September 16, 2026

Short answer: the JBL Partybox Encore 2. It ranks #4 of 75 boombox speakers by sound quality at $330; the Diamondboxx M3 ranks #53 and costs $700, so there is little reason to consider the other one.

JBL Partybox Encore 2 vs Diamondboxx M3

What the JBL Partybox Encore 2 offers: The Encore 2 improves the original with dome tweeters, a less boomy balance, slightly deeper bass, longer battery life and two included wireless microphones. Its compact karaoke-ready design and 7-band EQ make it more adaptable indoors than the earlier Encore. Watch for: It still lacks some upper-bass punch and cannot match the scale of the larger PartyBoxes. The main value is compact karaoke convenience rather than full-range party output.

What the Diamondboxx M3 offers: An unusually compact 5kg high-output boombox, with a claimed 200W RMS Class A/B amplifier, 114dB maximum level, active crossovers and a choice of large battery packs. It has aux input, USB-C power and TWS pairing, while the aluminum heat sink is designed to sustain loud playback without thermal shutdown. Watch for: Despite its output, bass does not reach as deep as the best large portables and can distort when pushed hard. The treble-forward tuning can sound aggressive, there is no app or EQ to correct it, and the lack of a water rating makes it a poor match for poolside or rough-weather use.

Buy the JBL Partybox Encore 2. It ranks higher for sound quality than the Diamondboxx M3 and costs less, so there is no real case for the other one.

There is a real battery-life gap here: the Diamondboxx M3 is rated for 40 hours, the JBL Partybox Encore 2 only 15 hours.

If water resistance matters to you, the JBL Partybox Encore 2 at IPX4 (splashing) holds up far better than the Diamondboxx M3 at no water resistance.

Looking for alternatives? See the complete Portable Bluetooth rankings.

Buy the JBL Partybox Encore 2 at Samsclub →

Specifications Side By Side

JBL Partybox Encore 2 Diamondboxx M3
Price$330$700
Ranked#4 of 75 in Boombox Size Portable Bluetooth Speakers#53 of 75 in Boombox Size Portable Bluetooth Speakers
AppYes (JBL PartyBox app)No
Aux InputYesYes
Battery Life15 hours (Manufacturer specified)40 hours (Manufacturer specified)
Built-in MicrophoneNoNo
EQYes (7 band App EQ)No
IP RatingIPX4None
Maximum SPL110dB (measured by Alan Ross Reviews)-
Party ModeYes (Auracast)No
Power BankYes (USB-C)No
Power InputAC Power cordUSB-C
Removable BatteryYes-
StereoYesYes
OmnidirectionalNoNo
TWSYesYes
USB PlaybackYesNo
Weight14.1 lbs (6.4 kg)11 lbs (5 kg)
Wireless MicrophonesYes 2 Included-
Bluetooth CodecsSBCSBC
Bluetooth Version5.4-
Amplifier Power100W RMS200W RMS / 400W peak
Dimensions12.6" x 13.3" x 10.4" (319.5 x 338.6 x 263 mm)14.7" x 9" x 8" (373.4 x 228.6 x 203.2 mm)
Drivers1x 135mm (5.25") woofer + 2x 20mm (0.75") dome tweeters3" woofer + tweeter array
Digital Aux InputNoNo
LightsYes-
FM Tuner-No
Buy the JBL Partybox Encore 2 at Samsclub →

How JBL Partybox Encore 2 compares with other leading options:

Prices on this page were last checked September 16, 2026 at 12:41 AM 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.

As an eBay Partner, we may be compensated if you make a purchase.

The Two Speakers In Full

JBL Partybox Encore 2: $330 Samsclub eBay

JBL Partybox Encore 2 ranking card

Pros: The Encore 2 improves the original with dome tweeters, a less boomy balance, slightly deeper bass, longer battery life and two included wireless microphones. Its compact karaoke-ready design and 7-band EQ make it more adaptable indoors than the earlier Encore.

Cons: It still lacks some upper-bass punch and cannot match the scale of the larger PartyBoxes. The main value is compact karaoke convenience rather than full-range party output.

Full JBL Partybox Encore 2 review and specifications →

Amplifier Power100W RMS
AppYes (JBL PartyBox app)
Aux InputYes
Battery Life15 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Version5.4
Built-in MicrophoneNo
Digital Aux InputNo
Dimensions12.6" x 13.3" x 10.4" (319.5 x 338.6 x 263 mm)
Drivers1x 135mm (5.25") woofer + 2x 20mm (0.75") dome tweeters
EQYes (7 band App EQ)
IP RatingIPX4
LightsYes
Maximum SPL110dB (measured by Alan Ross Reviews)
OmnidirectionalNo
Party ModeYes (Auracast)
Power BankYes (USB-C)
Power InputAC Power cord
Removable BatteryYes
StereoYes
TWSYes
USB PlaybackYes
Weight14.1 lbs (6.4 kg)
Wireless MicrophonesYes 2 Included
Check current price at Samsclub →Search eBay for JBL Partybox Encore 2 →

Diamondboxx M3: $700 eBay

Diamondboxx M3 ranking card

Pros: An unusually compact 5kg high-output boombox, with a claimed 200W RMS Class A/B amplifier, 114dB maximum level, active crossovers and a choice of large battery packs. It has aux input, USB-C power and TWS pairing, while the aluminum heat sink is designed to sustain loud playback without thermal shutdown.

Cons: Despite its output, bass does not reach as deep as the best large portables and can distort when pushed hard. The treble-forward tuning can sound aggressive, there is no app or EQ to correct it, and the lack of a water rating makes it a poor match for poolside or rough-weather use.

Full Diamondboxx M3 review and specifications →

Amplifier Power200W RMS / 400W peak
AppNo
Aux InputYes
Battery Life40 hours (Manufacturer specified)
Bluetooth CodecsSBC
Built-in MicrophoneNo
Digital Aux InputNo
Dimensions14.7" x 9" x 8" (373.4 x 228.6 x 203.2 mm)
Drivers3" woofer + tweeter array
EQNo
FM TunerNo
IP RatingNone
OmnidirectionalNo
Party ModeNo
Power BankNo
Power InputUSB-C
StereoYes
TWSYes
USB PlaybackNo
Weight11 lbs (5 kg)
Search eBay for Diamondboxx M3 →