B&W CDM1 is a two way? It would benefit from higher crossover, 80hz, or even up to 120hz. Just put the sub between the two speakers. Also, make sure you have bass management to cut the low frequencies from the speakers + time align them.
Possible sound deterioration adding subwoofer between amp and speakers
Hello, I have a secondary stereo system that I'm very happy with but am thinking of adding a sub. The setup currently in use starts with iTunes FLAC files or Pandora to a very competent Russian 6L6GC integrated amp to B&W CDM1 speakers through an Audioquest USB DAC Dragonfly. The sound is wonderful but lacking in the very lowest of frequencies when listening to some symphonic music. I have a small Pinnacle Baby Boomer sub that I might like to use but am concerned that it may affect the sound in some negative way. The amp has no line out connection so I would be using the sub's speaker jacks. The speakers have a rating of 47Hz so I am considering setting the crossover at around 50Hz to minimize its inclusion except at the lowest frequencies. Any advice would be appreciated.