Older HP filters with 8 dips read different....
BigKidz
You need Vandertones CD available download
off Vandersteen website.
Hook your Volt Meter set to AC Volts up to the speaker wires
at the amp or speaker with the High passes start at 50 k.
Play track 27 on repeat which is 1000hz and adjust your pre amps volume control to read as close to 1 Volt AC.
Next go to track 30 which is 100 hz and if the meter reads .707 or as close as you can get your set. If not start from beginning on trk 27 adjust dip switch settings repeat various listed settings until you get there.
JohnnyR