KEF KUBE 12B Active subwoofer 12inch 300W

Explore new dimensions in sound with Kube, KEF’s powerful range of subwoofers that open up sound’s hidden depths.

Each elegantly designed, fully sealed unit unleashes explosive power effortlessly, intuitively, intelligently. iBX technology extends the bass depth dynamically, unlocking the full potential of the driver’s power at normal listening levels or even the most extreme. And with KEF’s unique capability to design, build and integrate the driver in-house, we take optimisation to a whole new level. Delivering immersive music and home theatre sounds that drive you deeper into the heart of the performance.

System Format:    Sealed Cabinet. 25mm M.D.F construction with internal bracing. Sealed amplifier compartment
Low Frequency Limit:    18 Hz
Upper Frequency Limit:    40 - 120 Hz Variable
Low Pass Filter Alignment:    Active 4th order 24dB/octave (6/12/18/24 dB user adjustable)
Amplifier Power Output    650 watts Continuous. 1200 watts (peak)
Amplifier Classification    D2AudioTM* DSP controlled, Class-D amplifier system. High current switch mode power supply (smpsu)
Equalisation    4 Settings (Off/Music/Movie/Impact)
Phase Control    0-90-180-270 degrees
Auto Sensing Input Level Requirements    Line Level > 2mV. Standby after 10 minutes if no signal sensed
Digital Volume Level    -60 to +10dB in 1dB increments
Drive Unit Complement    1 x 15” C-CAM® sub-woofer driver featuring triple suspension
3” long throw voice coil
12V Trigger Input    3.5mm mono jack socket
Connections    Stereo RCA in/out
LFE in/out
12V Trigger in (3.5mm mono jack)
LEO* - 3.5mm Microphone input jack (microphone supplied)
Input Impedance    20 kohms
Dimensions (H x W x D)    430 x 400 x 400 mm (16 15/16 x 15 3/4 x 15 3/4 Inches)
Grille Depth    28 mm (1 1/8 Inches)
Weight (unpacked)    35.3 kg (77.6 lbs)
Mains Input Voltage    100 - 120 Vac / 220 - 240 Vac 50/60 Hz (Factory preset)
Electrical Certifications    CE/CB/ETL/Fcc/ErP (Energy saving compliant)
Power Consumption    Maximum 1000W. Standby Fuse Type    20mm UL/VDE (Value is region specific)
IR Remote Control Code    NEC SH6122

Length    No
Accessories    Mic, mic stand, remote control
Amplifier    360 watts Dynamic/180 watts RMS Power
Auto On/Off    Yes
Cabinet Design    Extended Excursion Down-firing port
Color    Black Ash Wood Grain
Dimensions: (H/W/D)    14.5" x 13.25" x 14.875" (36.8 x 33.7 x 37.8 cm)
HiPass Crossover    80 Hz*, 6 dB/octave
LoPass Crossover    40-120 Hz adjustable (12 dB octave, 24 dB ultimate)
Phase Control    0, 90, 180, 270 Degrees
Removable Grille    Yes
Shipping Weight    31 lbs. (14 kg)
Size    No
Voice Coil    2-Layer copper
Warranty (N. Am.)    Two years (electronics & drivers - parts & labor)

Length    No
Accessories    Mic, mic stand, remote control
Amplifier    390 watts Dynamic/195 watts RMS Power
Auto On/Off    Yes
Cabinet Design    Extended Excursion Down-firing port
Color    Black Ash Wood Grain
Dimensions: (H/W/D)    16.75” x 15.25” x 17” (includes feet and grille) (42.5 x 38.7 x 43.1 cm)
HiPass Crossover    80 Hz, 6 dB/octave
LoPass Crossover    40 - 120 Hz adjustable (12 dB octave, 24 dB ultimate)
Phase Control    0, 90, 180, 270 Degrees
Removable Grille    Yes
Shipping Weight    39 lbs. (18 Kg)
Size    Large
Voice Coil    2-Layer copper
Warranty (N. Am.)    Two years (electronics & drivers - parts & labor)

Crossover Tuning    
Mushrooms    
Description     Active closed-box subwoofer system
Drive unit     ø250mm (10 in) paper/Kevlar® cone long-throw
Frequency range     -6dB at 18Hz and 25/140Hz adjustable (EQ at A)
Frequency response     ±3dB 25Hz – 40/140Hz adjustable (EQ at A)
Bass Extension     -6dB at 18Hz (position A)

-6dB at 23Hz (position B)

-6dB at 28Hz (position C)
Amplifier     Power output: 500W
Rated power consumption:     98W / 1W standby
Input impedance:     33kΩ
Signal / noise:     >90dB
Functions:     Input level (line in)

Input level (speaker in)

Low-pass filter frequency (line in only)

Low-pass filter bypass

Bass extension

Bass roll-off alignment

Auto sense on/standby

Phase switch
Inputs:     Line In (RCA Phono)

Speaker in (Binding post)

12v trigger (3.5mm jack)

Low-pass filter

Active 4th-order, variable cut-off frequency
Dimensions     Height: 325mm (12.8 in) not including feet

Width: 325mm (12.8 in)

Depth: 375mm (14.8 in) including grille and controls
Net weight     15.5kg (34.4 lb)
Finishes     Matte Black

 Technical features    500W class 'D' power amplifier
Description    Active closed-box subwoofer system
Drive unit    1x f250mm (10 in) paper / Kevlar® cone long-throw
Frequency range    -6dB at 18Hz and 40/140Hz adjustable (EQ at A)
Frequency response    ±3dB 25Hz – 40/140Hz adjustable (EQ at A)
Power output:    500W
Rated power consumption:    94W
Input impedance:    33kΩ

Signal / noise:    >80dB
Functions:    Input Level (line in)

Input Level (speaker in)

Low-pass filter frequency

Low-pass filter bypass (line in only)

Bass extension

Bass roll-off alignment

Auto sense on/standby

Phase switch
Inputs:    Line In (RCA Phono)

Speaker Level In (Binding post)
Low-pass filter    Active 4th-order, variable cut-off frequency
Height:    325mm 12.8 in)
Width:    325mm (12.8 in)
Depth:    362mm (14.3 in)
Net weight    15.5kg (34.4 lb)
Cabinet    Gloss Black

AVAILABLE IN gloss black,wenge,rozenut COLORS