Twin 9 inches driver 'force-cancelling' subwoofer
Delivering exceptional bass precision and control with zero distortion, Reference 8b is a truly extraordinary subwoofer.
SOUND
REFERENCE 8b
For power with accuracy the Reference 8b sub has two 500W Class D amplifiers, each driving a 228mm (9 inch) long-throw, ultra-low distortion driver. These are connected back-to-back in a heavily braced, acoustically inert cabinet. The result is low distortion bass with effortless body and weight.
DESIGN STORY
THE REFERENCE
The standard by which others are judged, and to which they aspire. The perfect reproduction of recorded sound is what KEF's legendary THE REFERENCE Series has always stood for. And after 40 years of continuous development, THE REFERENCE has earned its name as the yardstick of high-end acoustic engineering.
If you're a perfectionist when it comes to enjoying movies or music, it's the one name that towers above the rest. THE REFERENCE. It speaks for itself.
The Details
SPECIFICATIONS
CABINET FINISH
Deep piano black
WEIGHT
34kg (75lbs.)
DIMENSION
H x W x D : 398 x 365 x 429 mm (15.7 x 14.4 x 16.8 in.)
UNIT MEASUREMENT
Pair
FINISHES
Deep Piano Black
INPUTS
RCA phono sockets
Analog XLR socket
Speaker level inputs
FREQUENCY RANGE
Free Field: 18Hz (-6dB)
FREQUENCY RESPONSE
24Hz at 90dB output in free-space mode (±3dB)
NET INTERNAL VOLUME
23L
MAXIMUM OUTPUT
110dB (peak sound pressure level at 1m 50Hz)
AMPLIFIER TYPE
2 x 500 W Class D with switched mode power supply and DSP based control section
DRIVE UNITS
LF 2 x 225 mm (9in.)
POWER REQUIREMENTS
100V - 120V / 220V - 240V ~50/60Hz
POWER CONSUMPTION
1000W
LINK OUT
RCA phono socket
VARIABLE LOW PASS FILTER
Variable frequency: 40Hz to 160Hz
Variable slope: 12dB/oct, 18dB/oct, 24dB/oct
LFE mode: 350Hz, 18dB/oct