• FIR filter effect with zero-latency
• can process mono and stereo signals
• The filter length can be customized up to a maximum of 32K taps
• simple interface
• load the desired sound
• viewing waveform and configuring behavior
• The ‘mix’ knob is designed for mixing the input with the output
• ‘gain’ knob for output volume level

keFIR is an older plugin (last update April 2010). 

Further information at KVRaudio.com.