JBL Partybox Encore Essential 2 vs Harman Kardon Onyx Studio 8

Last updated: August 18, 2026

Short answer: the JBL Partybox Encore Essential 2 for better sound quality, the Harman Kardon Onyx Studio 8 for the lower price. The JBL Partybox Encore Essential 2 ranks #5 of 73 boombox speakers at $209. The Harman Kardon Onyx Studio 8 ranks #10 at $159.99, $49.01 cheaper.

On the JBL Partybox Encore Essential 2 side: Appears to have better off axis performance due to the move to dome tweeters over cone. Set against that: Missing a little bit of upper bass.

What the Harman Kardon Onyx Studio 8 gets right: Warm sound with boosted bass. The catch: Not as loud as others.

Buy the JBL Partybox Encore Essential 2 if sound quality matters more than the price. Buy the Harman Kardon Onyx Studio 8 if the price matters more than sound quality.

If battery life is a priority, the JBL Partybox Encore Essential 2 is rated for 15 hours versus 8 hours for the Harman Kardon Onyx Studio 8.

If water resistance matters to you, the JBL Partybox Encore Essential 2 at IPX4 (splashing) holds up far better than the Harman Kardon Onyx Studio 8 at no water resistance.

JBL Partybox Encore Essential 2 vs Harman Kardon Onyx Studio 8

Specifications Side By Side

JBL Partybox Encore Essential 2 Harman Kardon Onyx Studio 8
Price$209.00$159.99
Ranked#5 of 73 in Boombox Size Portable Bluetooth Speakers#10 of 73 in Boombox Size Portable Bluetooth Speakers
AppYes (JBL PartyBox app)Yes (Harman Kardon One app)
Aux InputYesYes
Battery Life15 hours (Manufacturer specified)8 hours (Manufacturer specified)
Built in MicrophoneNoYes
EQYes (7 band App EQ)Yes (App EQ)
Guitar InputYes-
IP RatingIPX4None
Microphone InputYes (Karaoke mode with echo effect)-
Party ModeYes (Auracast)No
Power BankYes (USB-C)No
Power InputAC Power cordDC Barrel Connector (19V/2.1A)
StereoYesYes
OmnidirectionalNoNo
TWSYesYes
USB PlaybackYesNo
Weight13.7 lbs / 6.2 kg7.3 lbs / 3.3 kg
Wireless MicrophonesNo-
Bluetooth CodecsSBCSBC
Bluetooth Version5.45.2
Output Power100W RMS50W RMS
Dimensions12.6" x 13.5" x 10.3" (319.5 x 342 x 260.4 mm)10.6" x 11.9" x 6.3" (268 x 302.5 x 159.5 mm)
Drivers1x 135mm (5.25") woofer + 2x 20mm (0.75") dome tweeters2x 75mm woofers + 2x 20mm tweeters
Max Volume110dB96dB
Digital Aux InputNoNo
Aux Latency-42ms
Bass Extension (-10dB)-35Hz
Bluetooth Latency-175ms

More useful head-to-heads from the same speaker class:

The Two Speakers In Full

JBL Partybox Encore Essential 2: $209.00 Amazon Bhphotovideo

JBL Partybox Encore Essential 2 ranking card

Pros: Appears to have better off axis performance due to the move to dome tweeters over cone. A little less rolled off in the highs than the first Encore. Goes slightly deeper than the old Encore. Better battery life than the first Encore.

Cons: Missing a little bit of upper bass. No wireless Microphones like the non-Essential

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 13.5" x 10.3" (319.5 x 342 x 260.4 mm)
Drivers1x 135mm (5.25") woofer + 2x 20mm (0.75") dome tweeters
EQYes (7 band App EQ)
Guitar InputYes
IP RatingIPX4
Max Volume110dB
Microphone InputYes (Karaoke mode with echo effect)
OmnidirectionalNo
Output Power100W RMS
Party ModeYes (Auracast)
Power BankYes (USB-C)
Power InputAC Power cord
StereoYes
TWSYes
USB PlaybackYes
Weight13.7 lbs / 6.2 kg
Wireless MicrophonesNo

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Harman Kardon Onyx Studio 8: $159.99 Amazon

Harman Kardon Onyx Studio 8 ranking card

Pros: Warm sound with boosted bass.

Cons: Not as loud as others. No water rating.

AppYes (Harman Kardon One app)
Aux InputYes
Aux Latency42ms
Bass Extension (-10dB)35Hz
Battery Life8 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Latency175ms
Bluetooth Version5.2
Built in MicrophoneYes
Digital Aux InputNo
Dimensions10.6" x 11.9" x 6.3" (268 x 302.5 x 159.5 mm)
Drivers2x 75mm woofers + 2x 20mm tweeters
EQYes (App EQ)
IP RatingNone
Max Volume96dB
OmnidirectionalNo
Output Power50W RMS
Party ModeNo
Power BankNo
Power InputDC Barrel Connector (19V/2.1A)
StereoYes
TWSYes
USB PlaybackNo
Weight7.3 lbs / 3.3 kg

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