JBL Boombox Speaker Specs and Features

Here, we list the complete JBL Boombox speaker specs.  First, these give its physical size, weight, waterproof level certification, battery charge time, and play time.  They also give its frequency response, power output, battery life per recharge, and power bank capabilities.  Indeed it’s obvious from reading through these specs that the JBL Boombox sounds great.





Secondly, it plays plenty loud, with its thirty watts of total output power. Plus, that hefty driving audio offers more bass than similar sized models.

Rear view of the JBL Boombox BT speaker, showing the DC input barrel style port.
JBL Boombox BT speaker, back view, showing the DC input barrel style port.

Furthermore, even when playing at top volume, the lithium ion battery can last up to twenty-four hours per charge.

Rear view of the JBL Boombox, showing the charger cord connected to the DC input port on this speaker.
JBL Boombox back view, showing the charger cord connected to the DC input port on this speaker.

Moreover, perhaps the most interesting feature, is that this speaker functions as a power bank as well.  E.g. You can charge your cell phone, tablet, or other mobile device right from this speaker’s 20 amp hour battery.  Thus, the specs by no means belie the quality JBL put into this upper crust portable Bluetooth speaker.

JBL Boombox speaker along with included charger and user documents.
JBL Boombox speaker along with included charger and user documents.

JBL Boombox Speaker Specs

Dimensions: 25.45 x 45.85 x 19.55 (cm).
Dimensions: 10.01 x 19.48 x 7.69 (inches).
Weight: 5.25 Kg.
Weight: 11.57 Lbs.
Battery type: Lithium-ion polymer, 20000 MaH, 74 WaH.
The battery charge time: 6.5 hours
AC Adapter (included): 20 volts, 4 amps, 80 watts.
USB Output.  1 device 5 volts at 2 amps.  2 devices: 5 volts at 1 amp each.
Bluetooth Transmitter Frequency Range: 2.402 – 2.480 GHz.
The Bluetooth Transmitter Power: 0-9 dBm.
Bluetooth Transmitter Modulation: GFSK, π/4 DQPSK, 8DPSK
The Bluetooth version: 4.2
Music playing time: Up to 24 hours (varies by volume level and audio content)
Support: A2DP V1.3, AVRCP V1.6, HFP V1.6
Transducer: : 4-inch woofer x 2, 20mm tweeter x 2
Output power: 2 x 30W (AC mode), 2 x 20W (battery mode)
Frequency response: 50Hz. – 20 kHz.
Signal-to-noise ratio: ≥ 80dB.
Case design: Waterproof to IPX7 standards when the charge port door is closed tightly.
Rear view of the JBL Boombox speaker, showing the closed port cover door.
JBL Boombox speaker, back view, showing the closed port cover door.




JBL Boombox Features List

  • Portable.
  • Wireless streaming.
  • Plus, this speaker can recharge up to two mobile devices at the same time.
  • Up to 24 hours of play.
  • High-capacity rechargeable battery.
  • Connect up to two smart devices so each can take turns playing to this speaker.
  • IPX7 waterproof, rugged construction.
  • JBL Connect+ which allows you to join up to over a hundred JBL Connect Plus compatible speakers.
  • Indoor/outdoor sound mode boosts the bass when you switch into outdoor mode.  Outdoor mode may also lengthen battery life per charge.
  • Very powerful bass.
  • Furthermore, you get a battery charge status gauge on speaker front.
  • The button compliment includes Power, Bluetooth, Volume, Connect Plus, Play Pause, and the Indoor / Outdoor mode selector button on the back of the speaker.
  • Finally, the speaker has a reasonable price at between $279 and $559.  Look for bargains.

Other Posts About the JBL Boombox Speaker

  1. How to Reset JBL Boombox Bluetooth Speaker
  2. How to Put JBL Boombox in Pairing Mode
  3. JBL Boombox Won’t Turn On Unless Plugged In, How to Solve 
  4. Boombox JBL Speaker Charging Instructions, Recharging Time
  5. JBL Boombox Battery Indicator Explained

Related posts 

  1. JBL Xtreme Speaker Specs, Specifications
  2. Google Home Mini Power Adapter Specs
  3. JBL Charge 4 Charger Adapter Specs
  4. Chromecast Audio Power Supply Specs
  5. JBL Charge 3 Specs for this Power Bank Speaker

References for JBL Xtreme Speaker Specs

  1. JBL Xtreme Bluetooth Speaker Product Page at JBL.com

Change History

  • 2021-07-30: First released.
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