After a number of years of failing to obtain reliable IR codes from the Niles RVL-6's IR teaching hardware, Niles released this CCF apparently recorded directly from the RP-6, via an IR transmitter. This CCF fixes reception inconsistencies in on/off, volume up, down, all-on, and all-off commands. (Volume commands repeat as well). This CCF works extremely well on the RVL-6 Speaker controller.