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JBL One Series 104

Item# J104SET-US
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$129.00129.0 each

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General Specifications

Low Frequency Transducer 4.5 in (118 mm)
High Frequency Transducer 0.75 in (19 mm), soft dome
Crossover 1725 Hz, 1st order
Input Sensitivity (-10 dBV Input) 87 dB / 1 m
Power Amp 60 W (30 W each speaker), Class D
Maximum Continuous SPL 89 dB
Maximum Peak SPL 102 dB
Maximum SPL, Momentary Peak 104 dB
Maximum Peak Input Level (-10 dBV / +4 dBu): +6 dBV / +20.3 dBu
Frequency Range 60 Hz – 20 kHz
System Distortion Criteria <10% THD at maximum output with full compressor / limiter engagement
Electrical Distortion Criteria <0.2%THD @ 1 kHz, 2.83 VRMS output; <1% THD @ 1 kHz, full rated output
Signal to Noise Ratio 75 dBA (A-Weighted), 70 dBr (unweighted), relative to 2.83 VRMS output on HF
Coverage (Horizontal x Vertical) 120º x 80º


Height 9.72 in (247 mm)
Width 6.02 in (153 mm)
Depth 4.88 in (124 mm)
Net Weight Master Monitor = 4.54 lb (2.06 kg); Slave Monitor = 3.81 lb (1.73 kg)


Enclosure Type Ported
Enclosure Material ABS with metal grille
Enclosure Finish Matte black acrylic paint

Audio Output

Output Connectors 1 x 3.5 mm (1/8") stereo headphone with auto speaker mute

Audio Input

Input Connectors 2 x 1/4-inch (6.5 mm) balanced (+4 dBu); 2 x RCA (-10 dBV); 1 x 1/8-inch (3.5 mm) unbalanced (-10 dBV)

Powering Interface

AC Input Voltage 100 – 240 VAC (± 10%), 50/60 Hz
Current Draw 85 watts
Electrical Current Draw (W) Idle 100 / 240 VAC 3.52 / 3.70
Electrical Current Draw (W) Max Power 100 / 240 VAC 80 / 80
Electrical Current Draw (W) Low Power Standby Mode 100 / 240 VAC 0.34 / 0.46
  • 1 x 104 Master Monitor
  • 1 x 104 Extension Monitor
  • 1 x Extension monitor connection wire (2-conductor, 2 meters)
  • 1 x Audio Connection Cable: 3.5 mm (1/8") mini TRS stereo plug to dual RCA plug
  • 1 x Power Cord
  • 1 x Quick setup guide
whats in box
JBL 104 compact, full-range, powered reference monitors draw from seven decades of JBL Professional engineering to deliver the truest, most accurate sonic presentation of any monitor in their class. Ideal for home recording enthusiasts, podcasters and video producers, as well as professionals seeking accurate portable reference monitors, JBL 104s combine powerful 4.5-inch (118 mm) low-frequency drivers with coaxial .75- inch (19 mm) soft-dome tweeters, potent 60-watt amplification and innovative acoustic design to provide exceptional imaging, neutral frequency response and crisp detail in our smallest, most affordable reference monitor yet. With their sleek, elegant design and compact form factor, they’ll make a stunning statement in any home or pro studio while conserving valuable work space. Creative professionals and music lovers alike can count on the JBL 104 to deliver a reliable sonic reference and a truly enjoyable listening experience, all at an attractive price point.

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JBL One Series 104 is rated 4.5 out of 5 by 2.
Rated 4 out of 5 by from Great for the office I bought these a few weeks ago. I used RCA ports to connect a bluetooth receiver, so I can stream from my phone during office hours. They perform very well. Bi-amped speakers have all the power they need to produce low distortion sound at all volume levels. They play a across a very broad spectrum and all types of music sound great. These are ported, so the low end comes through even at low volume levels. I rated 4 instead of 5 as they lack ( just a little) punch at the low end. It is probably asking too much from such a small package. My preference is for the bass to be impactful even at low volume. Don't be confused by this though, they produce a very rich sound from a decent mp3 file. Great value.
Date published: 2019-04-27
Rated 5 out of 5 by from Nice desktop monitors I was really surprised how good these sound considering the low price and desktop placenent. Dare I say these are the best small powered monitors I've heard? Yes. Especially if space is limited. Imaging is superb, bass is pretty good, though the upper mids seem a bit etched for my taste. Mixes seem to translate well and I also use them for video post work. I would not master music on them, though. I use larger monitors for that purpose. Still, best bang for the buck and very portable.
Date published: 2019-06-06
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Could these be connected directly to a turntable without need of an amplifier?

Asked by: Torpedo9
Hi there, for technical help about your JBL One Series 104, please reach out to our JBL Professional at 844-776-4899 or email them at hprotechsupportusa@harman.com
Answered by: Rhae
Date published: 2019-08-06

Is it possible to connect a subwoofer to the JBL 104's via RCA while an interface is connected via TRS?

Asked by: TGSXgio
We would like to get more information to help you out, please submit a case request and so we can assist you: https://pro.harman.com/service
Answered by: Mario at Customer service
Date published: 2019-06-30

TV speakers?

Asked by: DansDaMan
Thanks for your interest in our product. For better assistance, please contact our JBL Professional Division. You may call them at 844 776 4899 or send them an email at support@jblpro.com.
Answered by: Kris A
Date published: 2019-06-22

So I don't need an amp for this? I can just plug it straight into my computer? Why does only one speaker have audio jacks?

Asked by: Haganation
Thanks for reaching out. Yes it has an integrated 60-watt Class D power amplifier; 30 watts distributed to each speaker. If you have other questions or any inquiries, please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Jayson D
Date published: 2019-03-27
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