| Content |
|
KEF R400b Subwoofer
At just 14 inches square, the KEF R400b may be compact, yet it packs an incredible punch. With a reinforced and braced sealed cabinet, the R400b houses twin 9-inch LF drivers powered by twin 250W class-D amplifiers. The drivers are mounted back-to-back, to create ʽforce cancellingʼ. This means the opposing reactive forces are nullified, resulting in no cabinet agitation and a clean, fast, powerful bass performance – perfect for any serious home theatre system.
| | Model | R400b | | Design | Powered Subwoofer (Sealed)
| | Drive Units | Bass units:
LF: 2 x 225mm (9in.) | | Frequency range (-6dB) | 26Hz - 140Hz | | Maximum output | 111dB | | Amplifier | 2 x 250W (500W)
built-in Class-D
| | Low pass filter Variable | 40Hz - 140Hz, 4th-order | | Low level signal inputs | RCA phono sockets
Speaker level inputs | | Internal volume | 22 litres | | Power requirements | 100V - 120V / 220V - 240V
~ 50 / 60Hz | | Power consumption | 600VA | | Weight | 21.5kg (47.4lbs.) | Dimension (H x W x D)
(with terminal & plinth) | 365 x 330 x 351 mm
(14.4 x 13 x 13.8 in.) |
|
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
|
Pressure vessel enclosure
500W ICEpower® amplifier
Switch mode power supply
Description Active closed-box subwoofer system
Drive unit 2x f200mm (8 in) mica / aluminium diaphragm long-throw
Frequency range -6dB at 18Hz and 40/140Hz adjustable (EQ at i)
Frequency response ±3dB 21Hz – 31/110Hz adjustable (EQ at i)
Power output: 500W
Rated power consumption: 110W (105W - 100V version)
Input impedance: 100kΩ
Signal / noise: >90dB
Functions: Volume level
Low-pass filter frequency
Bass roll-off alignment
Auto sense on/standby
Phase switch
Inputs: Line In (RCA Phono)
Speaker Level In (FCC68 4/4)
|
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 |
Low Frequency Limit: 27Hz (EQ1) 21Hz (EQ2)
Upper Frequency Limit: 40 - 120Hz Variable
Power Output: 500W RMS (1000W Peak)
Low Pass Filter Alignment: Active 4th order 24dB/Octave (2nd stage filter)
Cabinet Specification: 25mm construction and internal bracing
Cabinet Alignment: sealed cabinet
Driver Complement: 1 x 12" C-CAM® sub woofer driver featured triple suspension and ling throw 3" voice coil
External Dimensions:
(H x W x D)
inc. amp & driver 340 x 340 x 410 mm
(13 3/8 x 13 3/8 x 16 1/8 inch)
External Dimensions:
(H x W x D)
inc. feet & grille 375mm (15“) high with feet
430mm (16 15/16“) deep
inc amp & grille
Mains Input Voltage Specification: 110 - 120 Vac / 220 - 240 Vac 50/60Hz
Individual Weight: 22.56 Kg (49.63 lb)
User's Manual
ΔΙΑΤΙΘΕΤΑΙ ΣΤΑ ΠΑΡΑΚΑΤΩ ΧΡΩΜΑΤΑ
|
Reviews
There are no reviews yet.