Originally Posted by
.:hb:.
I am currently building my second version of 3155 crossovers for driving my 4355.
Version 1 has been the simplified circuit with the auto-transformer being replaced with a suitable network floating around on this board. Works so far.
Version 2 will be a full blown balanced DC biased one, and this time I'd really like to go with the auto-transformer.
My problem is, as usual in this case, finding suitable ones.
I do have auto-transformerwith the required -4 dB tap, but there's one thing I am not sure of: How important is the inductance of those in this case? Is it an active part of the filter topology or is the auto-transformerjust used for level (and impedance) transformation? If the latter is the case, using autoformers with a much larger inductance than the original ones (which are 1 mH and 0,16 mH, mine have about 5mH) might not be a problem.
Any ideas if this might work?