JBL
JBL Synthesis 4367
Best floorstanding speaker for audiophiles seeking professional-grade studio sound at home.
The JBL Synthesis 4367 is a high-performance 2-way floorstanding loudspeaker, built with technology from JBL Professional's M2 Master Reference Monitor. It features a 15-inch woofer for low to mid frequencies and a 3-inch compression driver for upper-mid and high frequencies, utilizing JBL's patented HDI waveguide technology. The speaker is designed for exceptional audiophile performance in 2-channel audio systems or as LCR speakers in a multichannel home theater setup. Its iconic studio monitor design includes front-firing ports for extended bass response and adjustable high-frequency trim controls. Available in walnut and black walnut finishes.
$8250.00
Owner Satisfaction
4.7
/ 5
Category Rank
578
/ 8447
#578 in Speakers
Price vs Category Average
+464%
Above average
Type
2
/ -way Floorstanding Loudspeaker
Who it's for
- Listeners craving the visceral energy of a live concert
- Audiophiles seeking pinpoint imaging and immersive soundscapes
- Owners of large rooms needing high-efficiency, distortion-free volume
Who should skip it
- Homeowners with limited floor space or strict interior layouts
- Budget-conscious buyers looking for entry-level high-fidelity gear
- Decor-focused individuals preferring minimalist or modern furniture aesthetics
Performance breakdown
Dynamic Range
Effortlessly handles massive swings from delicate whispers to thunderous cinematic crescendos.
Imaging Precision
HDI waveguide technology creates a pinpoint soundstage with remarkable spatial accuracy.
Bass Authority
The 15-inch woofer delivers visceral, room-filling low frequencies with absolute control.
High-Frequency Detail
Dual compression drivers reveal subtle textures without ever sounding harsh or fatiguing.
Amplifier Compatibility
High sensitivity makes these speakers easy to drive for most quality amplifiers.
Build Integrity
Robust cabinet construction ensures resonance-free performance at even the highest volumes.
Key Specs
Type
2-way Floorstanding Loudspeaker
Low-Frequency Transducer
15” (380mm) 2216Nd-1 Dual Differential Drive woofer
Mid/High-Frequency Transducer
3” (75mm) D2430K dual compression
Maximum Recommended Amplifier Power
300 watts RMS
Frequency Response
30 Hz – 40 kHz
Sensitivity
94dB
Nominal Impedance
6 Ohm
Crossover Frequencies
700 Hz
Features
- Iconic JBL Studio Monitor design
- 15-inch Dual Differential Drive woofer with Pure Pulp cone
- 3-inch Mid/High compression driver with dual diaphragms
- Patented High Definition Imaging (HDI) horn/waveguide technology
- Front-mounted ports for extended bass response
- Front panel high-frequency and ultra-high-frequency trim controls
- Available in walnut and black walnut wood grain veneer finishes
- Dual binding post inputs for audiophile performance
What customers say
Customers consistently praise the JBL Synthesis 4367 for its exceptional sound quality, often describing it as immersive and remarkably detailed across all frequencies. The speakers deliver a powerful yet refined audio experience that truly captivates listeners. Beyond performance, the design receives high marks for its robust build and classic aesthetic, blending seamlessly into sophisticated listening environments. While a significant investment, owners feel the unparalleled sonic fidelity and craftsmanship justify the premium, highlighting a strong sense of satisfaction with their purchase.
Know before you buy
While these are exceptional for 2-channel music listening, they are also designed to function as high-performance LCR (Left, Center, Right) speakers in a multichannel home theater system.
The 4367 has a sensitivity of 94dB, meaning it is relatively efficient and can be driven by a wide range of amplifiers. However, it is rated for up to 300 watts RMS, so a high-quality amplifier with sufficient headroom will help you get the most out of the 15-inch woofer.
The high-frequency and ultra-high-frequency trim controls allow you to fine-tune the speaker's output to match your room's acoustics. This is particularly useful if your room is overly bright or dampened, letting you adjust the treble response without needing external equalization.
Because the ports are front-firing, the 4367 is more flexible with placement than rear-ported speakers. You can position them closer to a wall without the same risk of boomy or muddy bass response, though some experimentation is always recommended for optimal imaging.
The patented High Definition Imaging (HDI) waveguide is designed to provide a consistent, wide soundstage and precise imaging. It ensures that the transition between the compression driver and the woofer is seamless, resulting in a balanced sound whether you are sitting directly in front of the speakers or slightly off-axis.
With a 15-inch woofer and a large cabinet, these speakers are physically imposing and capable of moving a significant amount of air. While they can work in smaller spaces, they are best suited for medium-to-large rooms where they have enough breathing room to project their full soundstage.
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$8250