Good afternoon, GM,

With your extensive background with Altec pro gear, I would guess that you must have seen inside a ML crossover. A lot of stuff packed into a smallish case with most of the space being occupied by three immense air-core inductors and the 2 large variable resistors used in the HF and MF circuits. Sorta hard to tell what is what. Also seems to violate a lot of "rules" for inductor placement in a circuit!

However, your advice is good as always and of course, logical. I have the schematic and will do as you suggest the next time I have the crossovers out of service - I'm listening to them now.

I also have two other crossover pairs, the OEM N-1500As which are like new, and another pair that I built from a schematic that Bill H. at GPA kindly sent me. These were designed by his friend, Jerry Hubbard, who was a acoustics engineer at Altec back in the day. I will no doubt be swapping in my DIY pair sometime soon.

Thanks, Fred