Greg often used 1.0 mH and 3.5 mH air core inductors having 7.5 ohms DCR across midrange and high frequency transducers back in the 70's and 80's to mitigate their resonance frequencies. Note L3 and L4 below in the L212 parts list. These exact same L212 parts are shown above in my L-Pad board photo. Way back in the early 80's I purchased a bunch of each from JBL Parts.
It turns out that he also used them in the 4344 Mk II many years later sans the high DCR values, at that time he used resistors in series. L3 and L6 in the schematic.