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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 |
| Product Series Subwoofers
Speaker Type Subwoofer
Frequency Range (+/-3 dB) [Hz] 28 - 190
Maximum SPL [dB] 112
Crossover Frequency [Hz] 40 - 120 Hz
Low Frequency Driver 1 x 12" long stroke Polymere Aluminimum
Enclosure Type Bass Reflex
Bass Reflex Tuning Frequency [Hz] 36.0
Max. Amplifier Power Output [RMS watt] 220
Continous IEC Power Output [RMS watt] 170
Input Impedance [Ω] 25K
Connection input(s) Mono line level (LFE)
Stereo line level (low pass filtered)
RCA
Magnetic Shielding No
Recommended Placement Floor
Near wall or corner
Recommended Distance From Wall [cm] > 5
Functions Crossover Frequency
Phase Switch
Standby (Auto Power) On/Off Switch
Volume (Gain)
Maximum Power Consumption [W] 250
Max. Dimensions Incl. Base And Grille (HxWxD) [mm] 370 x 340 x 380
Weight [kg] 14.7
Accessories Included Manual
Rubber Bumpers
Spikes M6
Finish Black Ash Vinyl
Light Walnut Vinyl
White Vinyl |
Dimensions | Metric :10-5/16” W x 15-3/4” D x 12-7/8” H | 26.2 x 40.0 x 32.7 cm
Driver Complement :One high-definition 8" woofer pressure coupled to one 8" low bass radiator.
Frequency Response :20 Hz – 150 Hz
Internal Amplifier Power :300 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
Low Level Inputs :One LFE input (for SW preout only)
High Pass Crossover :Non Variable 6 dB/octave @ 80 Hz: Available only with high level inputs and outputs
Low Pass Crossover% :24 dB/octave, continuously variable from 40 Hz – 150 Hz: Available with high level inputs only
Available Finishes :Matte Black; Matte White
Fuse :3.2 amp 250 volt Slo Blo (US) | 2 amp 250 volt Slo Blo (International)
Packaging :Packaged individually or as part of ProCinema 800 system
Weight | Metric :26 lbs | 11.8 kg
Warranty :5 Years; 3 Years for Amplifiers
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The ASW610 subwoofer presents a very happy medium between the more diminutive ASW608 and the all-out power of the ASW610XP. Its long-throw 250mm driver allows the ASW610 to move the large volumes of air needed for high-quality low-frequency output, and its audiophile-standard 200W Class D amplifier keeps the compact unit running cool, even when the music or movie action is whipping up a storm.
In all of the 600 Series subwoofers, the bass driver diaphragms are constructed from a rugged, finely-tuned mix of paper pulp, Kevlar® fibres and resin, which provides the stiffness needed to withstand the tremendous physical forces exerted by the voice coil and pressures inside the cabinet.
Ultra-solid construction delivers slamming bass, drum kicks, and special movie effects. Deformation is minimised; bass precision, power and enjoyment are maximised.
Description | Active closed-box subwoofer system |
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Drive unit | ø250mm (10 in) paper/Kevlar® cone long-throw | Frequency range | -6dB at 20Hz and 25/140Hz adjustable (EQ at A) | Frequency response | ±3dB 27Hz – 40/140Hz adjustable (EQ at A) | Bass Extension | -6dB at 20Hz (position A) |
| -6dB at 25Hz (position B) |
| -6dB at 30Hz (position C) | Amplifier |
| Power output: | 200W | Rated power consumption: | 40W / 0.5W 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: 310mm (12.2 in) not including feet |
| Width: 310mm (12.2 in) |
| Depth: 375mm (14.8 in) including grille and controls | Net weight | 12.5kg (27.6 lb) | Finishes | Black Ash Vinyl |
| Red Cherry Vinyl | |
Description Active balanced-drive closed-box subwoofer system
Drive units 2x Ø300mm (12 in) Rohacell® cone long-throw
Frequency range -6dB at 15Hz and 250Hz
Frequency response ±3dB 17Hz - 145Hz
Power output: 1000W
Rated power consumption: 135W
Standby power Consumption: 100dB
Functions: 5 Presets
Input sensitivity
Gain
Low-pass filter
Graphic equalisation
Room compensation
Auto on/standby
Trigger on/standby
Trigger preset switching
RS-232 automation control
Inputs: Stereo Line In (2x RCA Phono)
Mono (LFE) Line In (RCA Phono)
Mono (LFE) Line In (XLR balanced)
Dimensions Height:490mm (19.3 in) not including feet
Width: 460mm (18.1 in) including grilles
Depth: 410mm (16.2 in) including controls
Net weight 44kg (97 lb)
Cabinet finish Gloss Black
Cherrywood
Rosenut
Grille Black cloth
ALSO AVAILABLE IN Cherrywood, rosenut
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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 AVAILABLE IN SIX COLOR FINISHES
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