Quote Originally Posted by SuperDave336 View Post
OK if I buy a SI unit it comes with DI as well correct? The DI model only has DI and not SI correct?
Correct ... with a caveat in HELIX 7 SI unit - there is no DI piezo in any HELIX 7 SI unit ...

So the DI view in the HELIX 7 SI unit is a computer generated DI view from the data received by the SI piezoes ...

All HB DI units are dedicated DI (and 2d) ...
All HB SI units 8” and above have dedicated DI and SI (and 2d)... (except some older core SI G1 9” units)
All HB SI units 7” and below have 2d/ computer generated DI / SI ...

Rickie