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JBL 104 4.5" Studio Monitors

PLU: 691991015519
  • Coaxial 4.5" woofer, 0.75" tweeter
  • Contoured low-frequency port
  • Inbuilt 60-watt Class D power amplifier
  • Front panel volume, headphone jack & mute
4.8 (6)


The JBL One Series 104 reference monitors came about to give content creators the ability to hear all the details for better results while mixing and editing. Drawing on seven decades of JBL Professional engineering, the 104 represents an innovative new set of speakers, designed from the ground up to provide the most accurate sonic presentation of any monitors in their class.

Worldwide, JBL's the top choice for recording studios, cinemas and live concert stages in a compact, affordable, and stylish desktop speaker. JBL 104 Powered Reference Monitors are ideal for recording musicians, podcasters, and music and video producers—as well as anyone seeking enjoyable listening experience.

Key Feature

With JBL 104 Reference Monitors, you’ll hear true clarity and detail, with no coloration. The 104s deliver crisp highs and rich bass just as intended.
They’re optimized for desktop placement, with neutral low-frequency performance. And their smooth off-axis response means you can monitor with confidence in a wide sweet spot.

Pro Performance, Scaled to Size
The world’s top recording studios and touring artists rely on JBL Professional monitors to deliver unparalleled fidelity and performance. Now, we’ve optimized that technology in our smallest form factor ever. The 104 Reference Monitor’s innovative new coaxial driver design features a high-frequency driver aligned with a precisely contoured woofer cone to deliver accurate response,
exceptional detail and impressive off-axis performance, for the most neutral, accurate presentation, desktop to desktop, room to room. The cabinet’s precisely contoured low-frequency port works with the driver to provide accurate bass at all listening levels. And with low frequency extension down to 60 Hz, you’ll be impressed with the bass you get, even without a subwoofer.

Loud and Clear
JBL 104 Reference monitors offer this high level of performance, even at loud playback levels. This is accomplished through clean, integrated 60-watt Class D amplification that distributes 30 watts per speaker.
And with their efficient design, One Series speakers can be driven to 104db SPL (peak), without the distortion found in other monitors in their class.

Streamline Your Sessions
And JBL One Series reference monitors were created with the modern production lifestyle in mind. They not only feature a sleek, new look for JBL, but with their compact size, creators can get legendary JBL sound even in smaller workspaces. Smart features like a front-panel volume control
allows convenient level adjustments without straying from the sweet spot, the front-panel headphone jack automatically mutes the speakers, providing isolation in one simple step, and dual 1/4-inch balanced and single 1/8-inch unbalanced TRS inputs accommodate a wide range of sources.

Full Features
Master and extension speaker sold as one set
Coaxial 4.5-inch (118 mm) contoured LF driver with integrated.75-inch (19 mm) soft-dome HF driver
Contoured low-frequency port
Integrated 60-watt Class D power amplifier; 30 watts distributed to each speaker
Acoustically optimized for desktop placement
Three sets of inputs allow connection with professional equipment, personal music players and consumer-level devices
Master monitor includes electronics for the extension monitor, minimizing wiring and clutter
Front-panel volume control
Front-panel headphone jack with speaker mute feature
Integrated power supply


System Input Type: 1/8" Aux, RCA, 1/4" TRS balanced
System Output Type: 1/8" stereo headphone with auto speaker mute
LF Transducer: 4.5 in (118 mm)
HF Transducer: 0.75 in (19 mm), soft dome
Enclosure Type: Ported
Crossover: 1725 Hz, 1st order
Power Amp: 60 W (30 W each speaker), Class D
Sensitivity: 88 dB SPL @ 1 m with -10 dBV Aux In (Volume = Max)
System Maximum SPL*: 92 dB (continuous power measured)
System Peak SPL*: 102 dB (pink noise, 12 dB crest factor)
Maximum SPL, MOMENTARY PEAK*: 104 dB
Maximum Peak Input Level
(-10 dBV / +4 dBu): +6 dBV / +20.3 dBu
Frequency Range (-3 dB SPL)**: 88 Hz – 20 kHz
Frequency Range (-10 dB SPL)**: 60 Hz – 20 kHz
System Rated Impedance: 8 Ω
Minimum Impedance: 7.8 Ω @ 260 Hz
Cabinet Tuning Frequency: 72 Hz
System Power Handling: 30 W x 2 @ 100 hours, IEC/SMS
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
System Polarity: EIA
Acoustic Test Specification: ATS# 1000340443
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): LOWPOWER STANDBY MODE 100 / 240 VAC: 0.34 / 0.46
Enclosure Material: ABS with metal grille
Enclosure Finish: Matte black acrylic paint
HxWxD: 247 x153x 124 mm
Net Weight: Master Monitor: 2.06 kg
Slave Monitor: 1.73 kg

DJ / Pro audio deviceMonitors
Manufacturer's warranty5 Years
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