Looks like Josh just measured (the discontinued) Chase SS18.1:
Data-Bass
I've heard ugly rumors that Josh will be testing a few more CHT/Chane products in the near future. Re: the SS18.1, in the "comparable charts" section, things look nearly identical to the Funk 18.0C passive test. Not really a surprise, as both are using high sensitivity, short stroke 18" drivers. Not a bad show for the cost, though you sacrifice with a much larger and less attractive cabinet from the look of it.