I'm not having any luck finding the CNT7 either on the Bowers & Wilkins site or on the internet in general. Is there a different model # that we might be able to look up ?

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8