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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.
Model |
Kube12b Subwoofer |
DESIGN |
Powered Subwoofer |
DRIVE UNITS |
1 x 300mm (12in.) |
FREQUENCY RANGE |
22Hz - 140Hz (±3dB) |
MAXIMUM OUTPUT |
114dB |
AMPLIFIER TYPE |
Built-in Class-D |
AMPLIFIER OUTPUT POWER |
300W RMS |
VARIABLE LOW PASS FILTER |
40Hz - 140Hz & LFE |
ANALOGUE INPUT |
RCA phono sockets Speaker level inputs |
POWER REQUIREMENTS |
100V - 120V / 220V - 240V ~ 50 / 60Hz |
DIMENSIONS |
(with Rear panel and feet / H x W x D) 410 x 393 x 410mm (16.1 x 15.5 x 16.1in.) |
WEIGHT |
20.6kg |
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Dimensions | Metric :10-1/4” W x 10-1/4” D x 10-1/4” H | 26.0 x 26.0 x 26.0 cm
Driver Complement :One high-definition 7-1/2" long throw woofer, pressure coupled to two 7-1/2” low bass radiators
Frequency Response :16 Hz – 200 Hz
Internal Amplifier Power :650 watts
Auto On / Off :Signal Sensing (US) | Signal Sensing and Switched (International)
Power Requirements :110 volts Alternating Current (US) | 220 volts Alternating Current (International)
High Level Inputs :5 way binding posts
High Level Outputs :5 way binding posts
Subwoofer Inputs :One LFE input (for SW preout only)
Low Level Inputs :Two low level inputs: left and right low level in
Low Level High Pass Crossover :12 dB/octave continuously variable from 40 Hz to 150 Hz: Available only with low level inputs and outputs
Low Pass Crossover% :24 dB/octave continuously variable from 40 Hz – 150 Hz:
Available Finishes :Piano-Gloss Black
Accessories :Rubber feet; Isolation spikes
Fuse :8 amp 250 volt Slo Blo (US) | 4 amp 250 volt Slo Blo (International)
Weight | Metric :25 lbs | 11.3 kg
Warranty :5 Years; 3 Years for Amplifiers |
Dimensions | Metric :16-3/4” W x 16-3/4” D x 16-15/16” H | 42.5 x 42.5 x 43.0 cm
Driver Complement :One high-definition 14" long throw woofer, pressure coupled to two 14” low bass radiators
Frequency Response :11 Hz – 200 Hz
Internal Amplifier Power :1800 watts
Auto On / Off :Signal Sensing (US) | Signal Sensing and Switched (International)
Power Requirements :110 volts Alternating Current (US) | 220 volts Alternating Current (International)
High Level Inputs :Two pairs of 5 way binding posts
High Level Outputs :Two pairs of 5 way binding posts
Subwoofer Inputs :One LFE input (for SW preout only)
Low Level Inputs :Two low level inputs: left and right low level in
Low Level Outputs :Two low level outputs: left and right low level out
High Level High Pass Crossover :Non Variable 6 dB/octave @ 80 Hz: Available only with high level inputs and outputs only
Low Level High Pass Crossover :12 dB/octave continuously variable from 40 Hz to 150 Hz: Available only with low level inputs and outputs
Low Pass Crossover% :24 dB/octave continuously variable from 40 Hz – 150 Hz: Available only with high level inputs and outputs or low level inputs and outputs
Available Finishes :Piano-Gloss Black
Accessories :Rubber feet; Isolation spikes
Fuse :8 amp 250 volt Slo Blo (US) | 4 amp 250 volt Slo Blo (International)
Weight | Metric :97 lbs | 44.0 kg
Warranty :5 Years; 3 Years for Amplifiers
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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
| Amplifier Output: 500 Watts (RMS) 1000 Watts (Peak)
Low Frequency Limit 27Hz (EQ1) 21Hz (EQ2)
Upper Frequency Limit 40 - 120Hz Variable
Variable Low Pass Filter Alignment Active 4th order 24dB/octave (two-stage filter)
Cabinet Specification: Sealed Cabinet with 25mm M.D.F construction and internal bracing.
Amplifier Classification: Class-D amplifier
Driver Compliment: 1 x 12" C-CAM® sub-woofer driver featuring triple suspension and 3" long throw voice coil.
Dimensions:
(H x W x D) 340 x 340 x 410 mm
(13 3/8 x 13 3/8 x 16 1/8 inch)
Weight: (unpacked) 22.56Kg (49.63lbs)
Mains Input Voltage: 100 - 120 Vac, 220 - 240 Vac, 50/60Hz
Input Impedance 20Kohms
User's Manual
ΔΙΑΤΙΘΕΤΑΙ ΣΤΑ ΠΑΡΑΚΑΤΩ ΧΡΩΜΑΤΑ
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Amplifier Output: 1000 watts (RMS) 2000 watts (Peak) Frequency Response: 16Hz to 40/160Hz variable Crossover (Low Pass): 40Hz - 160Hz Variable slope characteristic from 12 - 36dB/Octave Sub-Sonic Filter (High Pass): 16Hz - 31Hz EQ: 4 x Presets 1 x User Setting Equalisation: Graphic 9 band Equaliser ±6dB in 0.5dB steps Volume Level: -80 - 0dB (1dB increments from 0 to -30dB & 2dB increments from -31 to -80dB) Auto Sensing Input Requirements: Line Level>5mV (RMS) Variable delay time 5, 10, 15, 20, 25 & 30 minutes Variable Phase Control: 0. 45. 90, 135, 180, 225, 270 & 315º Internal Memory: 3 Independent memory locations Cabinet Specification: Sealed Cabinet with 25mm thick M.D.F construction with critical internal bracing Amplifier Classification: Class-D amplifier with DSP control Driver Complement: 1 x 15" C-CAM long throw sub-woofer driver featuring triple suspension and a 4" long throw voice coil External Dimensions - Excluding Plinth: Width: 485mm (19 inches) Height: 455mm (18 inches) Depth: 475mm (18 3/4 inches) Weight: 50 Kg (110lbs) Mains input Voltage: 100 - 240 Vac 50/60Hz (Factory Set) Trigger Input: 3.5mm Jack input, +12Vdc = On State User's Manual AVAILABLE IN THESE COLOR FINISHES
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