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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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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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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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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
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Super-compact size
8" custom downfiring woofer
Wireless-ready!
Solid hand-finished, front-ported cabinet
Auto-sleep power saving mode
Dual line-level inputs (RCA and mini-jack)
All cables included
Excellent performance for music, movies,
and videogames
A perfect bass extension for Audioengine
powered speakers or any audio system!
Brand Name: Audioengine
Speaker Type: Subwoofer
Item Display Height: 11.3 in
Depth: 11.3 in
RMS Power Range - Speakers: 125 watts
Peak Power Handling - Speakers: 250 watts
Maximum Speaker Depth (inches): 11.3 in
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Impact Series: High Performance, High Value Subwoofers
The down-firing port on the Impact-12 gives more bass output with less distortion than similarly priced subwoofer from other companies. With its 275 watts of amplifier focused on the 29 Hz to 140 Hz frequencies, you get a ton of bass for you dollar. You can blend the Impact-12 with your satellite speakers using the adjustable low pass crossover frequency feature. All this great sound is wrapped up in an attractive black ash wood grain colored cabinet with black gloss trim.
Features
- Compact, stylish cabinet; high-value subwoofer
- High quality, long throw drivers
- 12" forward firing coated fiber woofer
- Down-firing port minimizes distortion
- 2" copper-wound voice coils for exceptional reliability
- “Green” MDP amp rated at 275 watts Dynamic power
Length |
No |
Accessories |
N/A |
Amplifier |
165 watts RMS, 275 watts Dynamic Power |
Auto On/Off |
Yes |
Cabinet Design |
N/A |
Color |
Black Ash Wood Grain |
Dimensions: (H/W/D) |
15.1" x 14.2" x 18.9" (38.4 x 36 x 48 cm) |
Frequency Response (+/-3 dB) |
29-140 Hz |
HiPass Crossover |
Full Range |
LoPass Crossover |
50 Hz-200 Hz |
Phase Control |
0, 180 Degrees |
Removable Grille |
Yes |
Shipping Weight |
33 lbs. (15 kg) |
Size |
Large |
Voice Coil |
2" dual layer copper-wound |
Warranty (N. Am.) |
Two years (electronics & drivers - parts & labor) |
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