JBL 4312G vs KEF Refrence 8B Subwoofer – Full Comparison & Verdict (2026)

Sleek black wood grain finish. Bass-reflex via front-firing port. Pure pulp woofer and midrange. Five-way binding post connectors. Aluminum/Magnesium alloy tweeter. Classic JBL 3-way 12-inch Monitor Loudspeaker. Iconic JBL 3-way configuration dating back to 1968. Front panel midrange and high-frequency attenuators. The JBL 4312G is a 3-way, high-performance compact studio monitor in the iconic JBL configuration dating back to 1968. The latest in line of top-notch bookshelf speakers inspired by the legendary Model 4310 Control Monitor, the 4312G delivers thundering bass, with dynamic and clear highs for a thoroughly enjoyable audio experience.

LF Drive Unit : Equipped with 2 x 225 mm (9in.) low-frequency drive units, the subwoofer delivers powerful and impactful bass. Maximum Output : Capable of reaching a maximum output of 110dB at 1m and 50Hz, providing a dynamic and immersive bass experience. Low Pass Filter : Features a variable low pass filter with a frequency range from 40Hz to 160Hz, allowing users to customize the crossover point. Frequency Response : The frequency response at 90dB output in free-space mode is Â±3dB from 24Hz, ensuring accurate and balanced bass reproduction. Amplifier : Powered by 2 x 500W Class D amplifiers with a switched mode power supply and DSP-based control section, delivering efficient and controlled power. Inputs & Connectivity: Provides versatile connectivity options with analog XLR socket, speaker level inputs, and a link out via RCA phono socket. The subwooferâ€™s net internal volume is 23L.

These speakers are ideal for creating a home theatre-like environment with immersive sound output. Advanced sound technologies play a major role in delivering a more immersive audio experience. Variations in sound output and surround capabilities affect how immersive the audio experience feels. Connectivity features such as Bluetooth and HDMI ensure compatibility with a wide range of devices. JBL 4312G and KEF Refrence 8B Subwoofer are feature-rich speaker setups offering a combination of powerful sound, surround experience, and connectivity options.

Verdict: Both systems are competitive, and the right option depends on your room size, usage, and feature requirements.

Top Differences

Sound Output: 10W vs 2W
Channels: 10 vs 2
Frequency Response: Crossover Frequencies : 640Hz, 5KHz Frequency Response - 6dB : 44Hz - 40KHz vs Variable Frequency 40Hz - 160Hz Frequency Range Free Field ( -6dB ): 18Hz Frequency Response : ( Â±3dB )24Hz At 90dB Output In Free-Space Mode
Subwoofer Size: 300 mm vs 2 mm

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Top Differences