With the JBL One Series 104 reference monitors, we started with the mission 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.

LF Driver4.5 in (118 mm)
HF Driver0.75 in (19 mm), soft dome
Crossover1725 Hz, 1st order
Input Sensitivity87 dB / 1 m
Power Amp60 W (30 W each speaker), Class D
Maximum Continuous SPL @ 1 meter89 dB
Maximum Peak SPL102 dB
Maximum SPL (1m)104 dB (momentary peak)
MAXIMUM PEAK INPUT LEVEL (-10dBV / +4dBu)+6 dBV / +20.3 dBu
Frequency Response (±3 dB)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 Ratio75 dBA (A-Weighted), 70 dBr (unweighted), relative to 2.83 VRMS output on HF
Coverage Angle120º x 120º
Dimensions (H x W x D)9.72 in x 6.02 in x 4.88 in (247 mm x 153 mm x 124 mm)
ENCLOSURE TYPEPorted
EnclosureABS with metal grille
ENCLOSURE FINISHMatte black acrylic paint
Audio Output Connectors1 x 3.5 mm (1/8") stereo headphone with auto speaker mute
Input Connectors2 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)
AC INPUT VOLTAGE100 – 240 VAC (± 10%), 50/60 Hz
Current Draw85 watts
LF Driver Power Handling30W, Class D
Maximum Continuous SPL92 dB