Black Lion Audio AM CHA1 EQ by Rob Coates
The BLA AM/CHA-1 EQ is an inductor based EQ that sounds pretty good on some sources. It is very colored however, and it is not possible to completely eliminate the color, owing to the input and output transformers the signal is always going through, even when EQ is disengaged. Build quality is also a bit lacking. Mine had several knobs that were not centered on the shaft, making precise adjustments impossible. Also, a couple of the pushbuttons on mine go in a little sideways and tend to stick.
With a few simple improvements, BLA could make this a much better EQ. In fact, I have spoken to one of the staff at Black Lion and they told me they will soon be using new, improved knobs and the problem mentioned above will betaken care of. Now, if they could provide a couple of switches to allow bypassing of the transformers, that would be a big improvement