KEF

JBL

Refrence 8B Subwoofer

4312G

Home Theatre Speaker Specification

Home Theatre Speaker Specification

Dynamic

Dynamic

2 X 225 mm

300 mm Pure Pulp Cone Woofer

125 mm Polymer-Coated Pure Pulp Cone

25 mm Magnesium / Aluminum Alloy Dome Tweeter With Waveguide

NA

6 Ohms

NA

90dB 2.83V@1m

Variable Frequency 40Hz - 160Hz
Frequency Range Free Field ( -6dB ): 18Hz
Frequency Response : ( ±3dB )24Hz At 90dB Output In Free-Space Mode

Crossover Frequencies : 640Hz, 5KHz

Frequency Response - 6dB : 44Hz - 40KHz

AC 100V - 120V / 220V - 240V ~50/60Hz

NA

2 X 500 W ( RMS ) Class D
Internal Volume 23L

10~200 W ( RMS )

110dB

NA

No

No

34 Kg

23.8 Kg

Speaker : 398 mm X 365 mm X 429 mm

597 mm X 362 mm X 305 mm

Black

Black, White

KEF Reference 8B Subwoofer
Power Cable
Product Manual

JBL 4312G Loudspeaker

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 ±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 subwoofer’s net internal volume is 23L.

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.