Blue Belle
pfm Member
Hello. I have a pair of Mission 767 speakers that I purchased for my collection, but they were without the LFAU bass control amplifier. However, I found one in the USA, and took the plunge. I've had it on a voltage transformer, it powers up, and allows the High and Mids through, but no bass signal is coming through. I've bridged the speaker crossovers and the speakers work all drivers in that way, but no movement what so ever via the LFAU. It's possible that the LFAU was used in combination with the PSX external power supply, and is wired to do so, hence the lack of activity. I have 3x Cyrus One PSX units to complement a Cyrus One amp, Tuner and the LFAU, I'd love to be able to get it all serviced, and then refinished, as you can imagine the components have taken a battering over the years. So, the main question, can I have the voltage changed in the LFAU so it will work on our 240v system, and then obviously allow me to plug it into the 240v PSX that I have set aside for it. Even without any servicing, I was truly stunned as to how good the Cyrus One amp was when playing through the 767's, it really is a lot of amp in a small box. Apologies for the long question, and hope it's not a stupid question too.