BSC for Fostex FE127E Metronome

BSC circuit value is determined by Baffle width and driver impedance. So if the drivers are the same impedance and baffles are the same width the circuit should be the same for both. People have had luck using no Zobel with the FE167E. Try with just a BSC and listen. If the highs are too much for your liking then add a Zobel.

1.5mH in parallel with a 6ohm resistor seems to be a common starting point for FE167E in most applications. However I noticed their suggested values are different. It depends how many dB of correction you want. Here is a calculator speadsheet:
http://www.quarter-wave.com/General/BSC_Calculator.xls

Usually 6dB is the most you would want. As that is the "open space" measurement. Bipolar designs don't need BSC.