Do you have a question about the KEF R400b and is the answer not in the manual?
Subwoofer type | Active subwoofer |
---|---|
Subwoofer sensitivity | 111 dB |
Subwoofer driver diameter | 225 mm |
Subwoofer frequency range | 26 - 140 Hz |
Subwoofer driver diameter (imperial) | 9 \ |
AC input voltage | 100 - 240 V |
Power source type | AC |
AC input frequency | 50 - 60 Hz |
Product color | Black |
Subwoofer depth | 350.5 mm |
---|---|
Subwoofer width | 330.2 mm |
Subwoofer height | 365.7 mm |
Subwoofer weight | 21500 g |
Explains graphical symbols used for safe installation and operation.
Follow manual for optimal performance, proper cleaning, and avoiding environmental hazards.
Handle warranty card and follow safety notices regarding cables and electrical safety.
Explains symbols, manual usage, retention, warnings, and following instructions.
Covers electrical safety, plug use, power sources, ventilation, heat, and environmental precautions.
Details safe handling, cord protection, non-use periods, and when to seek qualified service.
Details rear panel layout, controls, inputs, and indicators for operation.
Warnings on electrical shock, appliance safety, and certifications (CE, TÜV).
Illustrates connecting the subwoofer to AV receivers, pre-amplifiers, or stereo receivers.
Explains rear panel controls and manual adjustments for crossover, phase, volume, and bass boost.
Guidance on optimal placement and connecting the subwoofer to audio systems.
Solutions for common issues like no power or no sound from the subwoofer.